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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 6500. Отображено 198.
20-08-2021 дата публикации

УСТРОЙСТВО ДЛЯ НАБЛЮДЕНИЯ, ЗОНД ДЛЯ ИССЛЕДОВАНИЯ И СИСТЕМА НАБЛЮДЕНИЯ

Номер: RU2753720C2

Группа изобретений относится к медицине, а именно к наблюдению за физиологическими параметрами в живом организме. Предложена система, содержащая устройство, причем система содержит первый терминал; устройство для наблюдения; и зонд для исследования физиологических параметров в живом организме, содержащий: щуп для исследования, выполненный с возможностью приема собранного сигнала; соединитель, один конец которого присоединен к щупу для исследования посредством первого провода, а другой конец соединителя имеет второй стык, выполненный с возможностью съемного присоединения к первому стыку устройства для наблюдения; и второй модуль хранения, выполненный с возможностью сохранения идентификатора зонда для исследования и заданного порогового значения, при этом второй модуль хранения представляет собой интегральную схему памяти, при этом щуп для исследования содержит датчик для сбора собранного сигнала, и второй модуль хранения расположен в щупе для исследования, или в соединителе, или между щупом ...

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20-06-2012 дата публикации

ИЗМЕРЕНИЕ КОНЦЕНТРАЦИИ ГЛЮКОЗЫ В ПУЛЬСИРУЮЩЕЙ КРОВИ

Номер: RU2453266C2

Группа изобретений относится к области медицины. Проводят непрерывное измерение концентрации глюкозы в пульсирующей струящейся крови. Во время каждого цикла измерений многократно регистрируют светопропускную или рассеивающую способность крови для двух излученных длин волн ближней инфракрасной области спектра. Длительность цикла измерений настроена пошагово как целое кратное длительности пульса. Первая из двух длин волн ближней инфракрасной области спектра выбирается из диапазона длин волн 1560-1630 нм, а вторая из двух длин волн ближней инфракрасной области спектра из диапазона длин волн 790-815 нм. Рассчитывают зависящее от концентрации глюкозы в крови индикаторное значение по соотношению светопропускной или рассеивающей способности двух длин волн в отношении температуры крови. Концентрацию глюкозы в крови определяют посредством сравнения индикаторного значения с установленной ранее тарировочной таблицей. Устройство содержит измерительную кювету со сплющенной зоной просвечивания для непрерывного ...

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15-01-2020 дата публикации

Номер: RU2018114647A3
Автор:
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20-03-2013 дата публикации

ДАТЧИК ДЛЯ ОПРЕДЕЛЕНИЯ ПАРАМЕТРОВ ТЕЛА И СПОСОБ ОПРЕДЕЛЕНИЯ ПАРАМЕТРОВ ТЕЛА

Номер: RU2011137825A
Принадлежит:

... 1. Способ определения биометрических параметров, включающий:проведение хирургической операции по меньшей мере на одном тазобедренном суставе;имплантацию по меньшей мере одного биометрического передатчика в указанном по меньшей мере одном тазобедренном суставе;передачу первой энергетической волны от передатчика на операционный участок, включающий по меньшей мере одно из указанного тазобедренного сустава и участка, прилежащего к нему;количественную оценку характера поведения энергетической волны при помощи передатчика;после передачи первой энергетической волны:передачу второй энергетической волны от передатчика на операционный участок иколичественную оценку характера поведения второй энергетической волны;причем по меньшей мере одну из первой и второй энергетических волн передают колебательным образом в виде импульсов для стимулирования операционного участка в соответствии по меньшей мере с одним обнаруженным параметром операционного участка иопределяют текущее состояние указанного по меньшей ...

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10-01-2010 дата публикации

КАТЕТЕР ДЛЯ ДЕСТРУКЦИИ С ОПТИЧЕСКИ ПРОЗРАЧНОЙ ЭЛЕКТРОПРОВОДЯЩЕЙ ГОЛОВКОЙ

Номер: RU2008126323A
Принадлежит:

... 1. Катетер, который содержит: ! корпус катетера, и ! концевой электрод с передающей свет оболочкой и пленкой из углеродных нанотрубок на указанной оболочке. ! 2. Катетер по п.1, в котором передающая свет оболочка приспособлена для освещения и улавливания света, а пленка из углеродных нанотрубок приспособлена для деструкции ткани. ! 3. Катетер по п.1, в котором оболочка в целом имеет форму купола. ! 4. Катетер по п.1, в котором оболочка является оптически прозрачной. ! 5. Катетер по п.1, в котором пленка является передающей свет. ! 6. Катетер по п.1, в котором пленка является оптически прозрачной. ! 7. Катетер по п.1, в котором концевой электрод освещается, по меньшей мере, одним излучающим оптическим волокном. ! 8. Катетер по п.1, в котором свет, поступающий на концевой электрод от ткани, воспринимается, по меньшей мере, одним приемным оптическим волокном. ! 9. Катетер по п.1, в котором оболочка ограничивает полость, из которой свет освещает ткань и в которой свет от ткани воспринимается ...

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20-10-2012 дата публикации

ПРИСПОСОБЛЕНИЕ, УСТРОЙСТВО И СПОСОБ ПОЛУЧЕНИЯ ФИЗИОЛОГИЧЕСКИХ СИГНАЛОВ ПОСРЕДСТВОМ ПИТАТЕЛЬНОЙ ТРУБКИ

Номер: RU2011111412A
Принадлежит:

... 1. Орогастральная или назогастральная питательная трубка (10), содержащая: ! отформованный или выполненный с оболочкой сборочный узел из отдельных компонентов, таких как элемент с просветом, провода, электромеханические компоненты; ! провод, наложенный на центральный элемент с просветом, который получен многокомпонентным формованием, литьем или подвергнут герметизации после наложения; ! отформованные в стенке провода при экструзии одного элемента с просветом или множества элементов с просветом; или ! отдельный пучок проводов, размещенный в одном из множества элементов (36) с просветом, при этом множество элементов с просветом физически отделяют питательный канал в одном из элементов с просветом от электромеханических компонентов; ! трубчатый конструктивный элемент (42), в котором образован, по меньшей мере, один элемент (36) с просветом, который образует канал для подачи питания из пространства, наружного по отношению к субъекту, в желудок субъекта или в тонкую кишку субъекта; ! по меньшей ...

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20-07-2012 дата публикации

ОБНАРУЖЕНИЕ ИНФЕКЦИИ ПРИ ТЕРАПИИ РАН ПОНИЖЕННЫМ ДАВЛЕНИЕМ

Номер: RU2010146772A
Принадлежит:

... 1. Способ обнаружения инфекции в ране, вызванной заражающим организмом на участке раны, включающий: ! сбор текучей среды из участка раны, выведенной в ответ на пониженное давление, приложенное к участку раны, и ! осуществление анализа текучей среды, собранной из участка раны, для выявления продукта инфекции, ! причем наличие продукта инфекции указывает на наличие инфекции в ране. ! 2. Способ по п.1, в котором рана содержит ткань, выбранную из группы, состоящей из кожной ткани, костной ткани, хрящей, сухожилий, связок, мышц, нервной ткани, подкожной ткани и жировой ткани. ! 3. Способ по п.1, в котором продукт инфекции представляет собой аденозин-5'-трифосфат (АТФ). ! 4. Способ по п.3, в котором объединяют текучую среду, собранную из участка раны, с люциферазой и люциферином для получения реакции и затем измеряют свет, создаваемый реакцией, для обнаружения АТФ, причем рана является инфицированной, если создаваемый свет выше уровня, создаваемого текучей средой, собранной из раны, которая не ...

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07-03-2013 дата публикации

Meßkammer für einen optisch arbeitenden Sensor zum Bestimmen einer Konzentration eines Stoffes

Номер: DE202012007771U1
Автор:
Принадлежит: SCHILDTEC GMBH

Meßkammervorrichtung für einen optisch arbeitenden Sensor zum Bestimmen einer Konzentration eines Stoffes, der in Gewebeflüssigkeit (40) eines Säugers enthalten ist, wobei die Meßkammervorrichtung (1) eine Meßkammer (2) aufweist, die zum Einsetzen in den Körper des Säugers ausgebildet ist, mit einem flüssigen Meßmedium befüllt ist und eine Wandung (4) aufweist, welche zumindest in einem Wandungsabschnitt für den Stoff besser diffusionsdurchlässig ist, als für andere Bestandteile der Gewebeflüssigkeit (40), dadurch gekennzeichnet, daß die Meßkammer (2) aufweist einen ersten Meßkammerfensterabschnitt (5), der zum Verbinden mit einer Sendervorrichtung (17) zur Abgabe optischer Strahlung in die Meßkammer (2) vorbereitet ist, und einen zweiten Meßkammerfensterabschnitt (6), der zum Verbinden mit einer Empfängervorrichtung (24) zum Empfang von durch die Meßkammer (2) gelaufener optischer Strahlung vorbereitet ist, wobei erster und zweiter Meßkammerfensterabschnitt an einem Ende der Meßkammer ...

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06-09-2001 дата публикации

Mikroperfusionsvorrichtung

Номер: DE0010008825A1
Принадлежит:

The invention relates to a microperfusion device for extracting at least one constituent of a body fluid through a subcutaneously planted perfusion catheter (5). The device comprises: a) a housing (1), b) a supply of perfusate (7), c) a hollow needle (4) which penetrates the housing (1) and has a front needle opening (9) and a rear needle opening (10), d) the perfusion catheter (5) which extends from the housing (1) and surrounds the needle (4) e) and an evacuation channel (8) located in the housing (1), said channel being connected to the perfusion catheter (5) for evacuating the perfusate, f) whereby the needle (4) is accommodated by the housing (1) in such a way that it can be displaced from a front displacement position, in which it penetrates the perfusion catheter (5), into a rear displacement position, in which the front needle opening (9) projects into the perfusion catheter (5) and is covered by the latter (5), g) and the rear needle opening (10) forms a connection for fluid from ...

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20-09-2001 дата публикации

Device for in vivo analysis of body fluid, useful especially for monitoring glucose levels, comprises implanted light emitter and external detector

Номер: DE0010011284A1
Принадлежит:

Device (A) for in vivo measurement of the concentration of an ingredient (I) of a body fluid comprises (i) a light emitter (LE) emitting light at a wavelength to which (I) is sensitive and intended for implantation in living tissue, and (ii) a light detector (LD) positioned outside the tissue. LD captures light from the source and generates a signal that correlates with the concentration of (I).

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05-02-2009 дата публикации

Kathetersystem mit optischer Sonde und Verfahren zur Applikation einer optischen Sonde in ein Kathetersystem

Номер: DE102007035847A1
Принадлежит:

Die Erfindung betrifft ein Kathetersystem, aufweisend einen flexiblen, länglichen, zentralvenös applizierbaren Grundkörper (2), eine faseroptische Sonde (8), ein Faseroptiklumen zur Aufnahme der faseroptischen Sonde (8) und Befestigungsmittel (25) zur Vermeidung einer Längsverschiebung der faseroptischen Sonde (8) relativ zu dem Faseroptiklumen, wobei die Befestigungsmittel (25) lösbar sind, um eine Längsverschiebung der faseroptischen Sonde (7) relativ zu dem Faseroptiklumen zur Entnahme der optischen Sonde (8) zuzulassen, wobei die Befestigungsmittel (25) ein fest mit der faseroptischen Sonde (8) verbundenes Anschlussstück (7) und ein fest mit dem zentralvenös applizierbaren Grundkörper (2) verbundenes Gegenstück (6) aufweisen, welche aneinander anschließbar sind und wobei in angeschlossenem Zustand der Abstand zwischen distalem Ende (3) des zentralvenös applizierbaren Grundkörpers (2) und distalem Ende (14) der faseroptischen Sonde (8) durch die festen Verbindungen zwischen der faseroptischen ...

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12-03-2014 дата публикации

Electrochemical and luminescent sensor structures integrated on common substrate

Номер: GB0201401107D0
Автор:
Принадлежит:

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23-05-2001 дата публикации

Implantable analyte measuring device

Номер: GB0000108052D0
Автор:
Принадлежит:

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29-11-2000 дата публикации

Optical sensor for in situ measurement of analytes

Номер: GB0000025147D0
Автор:
Принадлежит:

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10-08-1994 дата публикации

Gastric probe

Номер: GB0009410761D0
Автор:
Принадлежит:

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03-09-1980 дата публикации

FIBRE OPTIC PROBES AND THE CALIBRATION THEREOF

Номер: GB0001574352A
Автор:
Принадлежит:

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30-06-1982 дата публикации

FIBER OPTIC PH PROBE

Номер: GB0002009394B
Автор:
Принадлежит: US COMMERCE, USA DEPARTMENT OF COMMERCE

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03-12-1980 дата публикации

Apparatus for detecting changes in inorganicion concentration in organic tissue

Номер: GB0002047884A
Автор: Labeyrie, Dr Etienne
Принадлежит:

Apparatus for detecting changes in the inorganic ion concentration in organic tissue comprises a tapered hollow support 5 for three channels, channel 1 being adapted to pass light or a light emitting substance into the tissue, channel 2 to pass light from the tissue and channel 3 to contain an electrically conductive saline solution, channel 2 is a bundle of optical fibres leading to photomultiplier 7, and channel 3 contains metal electrode 8 connected to an oscilloscope via an impedance adaptor. The substance carried by channel 1 will generally be one which emits light in the presence of particular cations. ...

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15-05-2008 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT0000394662T
Принадлежит:

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15-12-2010 дата публикации

EQUIPMENT TO BERWACHUNG THE BLOOD CONDITION AND THE FUNCTION OF HEART AND LUNG

Номер: AT0000489032T
Принадлежит:

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15-09-2011 дата публикации

STEREO PULSE OF OXIMETER

Номер: AT0000521277T
Принадлежит:

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15-09-1993 дата публикации

SENSORANORDNUNG

Номер: ATA191492A
Автор:
Принадлежит:

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15-06-2011 дата публикации

CONTROLLABLE CATHETER FOR THE LOCALIZATION OF THE CORONARY SINE

Номер: AT0000511876T
Автор: PIGOTT JOHN, PIGOTT, JOHN
Принадлежит:

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15-07-2010 дата публикации

VORRICHTUNG ZUR TRANSKUTANEN, IN-VIVO MESSUNG DER KONZENTRATION ZUMINDEST EINES ANALYTEN IN EINEM LEBENDEN ORGANISMUS

Номер: AT0000507659B1
Принадлежит:

Die Erfindung betrifft eine Vorrichtung zur transkutanen, in-vivo Messung der Konzentration zumindest eines Analyten in einem lebenden Organismus (A) mit einem in den Organismus einbringbaren Träger und einem auf dem Träger immobilisierten Lumineszenzindikator (15), der auf eine Änderung der Konzentration des zu messenden Analyten mit einer Änderung zumindest einer optischen Eigenschaft reagiert, wobei der Lumineszenzindikator (15) mit einer Quelle (16) zur Bereitstellung der Anregungsstrahlung (a) und einem Detektor (17) zur Erfassung der Messstrahlung (m) transkutan in Verbindung steht. Erfindungsgemäß ist der Lumineszenzindikator (15) am äußeren Umfang eines Katheters (10) immobilisiert, der zur Abgabe eines flüssigen Mediums, beispielsweise eines Medikamentes, in den Organismus (A) oder zum Absaugen einer Körperflüssigkeit dient.

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15-06-1996 дата публикации

CALIBRATION REFLECTOR DEVICE FOR AN OPTICAL MEASURING SYSTEM

Номер: AT0000138252T
Принадлежит:

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15-01-1996 дата публикации

TONOMETRI CATHETER DEVICE AND PROCEDURE WITH REMOTE SENSOR

Номер: AT0000132719T
Принадлежит:

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15-02-1996 дата публикации

TONOMETRI CATHETER COMBINATION

Номер: AT0000133047T
Принадлежит:

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15-08-1992 дата публикации

DEVICE FOR THE MEASUREMENT OF A PARAMETER IN THE BLOOD VESSEL.

Номер: AT0000078389T
Принадлежит:

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15-08-1998 дата публикации

EXCIPLEXSENSOREN AND REGULATION PROCEDURE

Номер: AT0000168468T
Принадлежит:

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15-07-2006 дата публикации

DETECTION DEVICE FOR THE MEASUREMENT OF THE OXYGEN CONTENT IN THE FABRIC

Номер: AT0000332101T
Принадлежит:

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15-04-2004 дата публикации

MICRO PERFUSION DEVICE

Номер: AT0000263591T
Принадлежит:

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08-01-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00037988009T
Принадлежит:

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09-12-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00031813128T
Принадлежит:

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12-04-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00033745500T
Принадлежит:

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14-09-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00032848886T
Принадлежит:

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16-03-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00032413691T
Принадлежит:

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21-07-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00036167244T
Принадлежит:

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20-03-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00035909822T
Принадлежит:

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27-03-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00033827838T
Принадлежит:

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19-03-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00031039036T
Принадлежит:

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13-12-2000 дата публикации

OPTICALLY WAS BASED SENSOR DEVICES

Номер: AT00039843496T
Принадлежит:

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12-07-2018 дата публикации

Time-resolved laser-induced fluorescence spectroscopy systems and uses thereof

Номер: AU2018204489A1
Принадлежит: FPA Patent Attorneys Pty Ltd

The invention provides systems for characterizing a biological sample by analyzing emission of fluorescent light from the biological sample upon excitation and methods for using the same. The system includes a laser source, collection fibers, a demultiplexer and an optical delay device.

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24-12-2020 дата публикации

A system for determining fluid level in a biological subject

Номер: AU2019352634C1
Принадлежит: Davies Collison Cave Pty Ltd

A system for performing fluid level measurements on a biological subject, the system including at least one substrate including a plurality of microstructures configured to breach a stratum corneum of the subject, at least some microstructures including an electrode, a signal generator operatively connected to at least one microstructure to apply an electrical stimulatory signal to the at least one microstructure and at least one sensor operatively connected to at least one microstructure, the at least one sensor being configured to measure electrical response signals from at least one microstructure. The system also includes one or more electronic processing devices that determine measured response signals, the response signals being at least partially indicative of a bioimpedance and perform an analysis at least in part using the measured response signals to determine at least one indicator at least partially indicative of fluid levels in the subject.

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12-11-2020 дата публикации

Systems, devices and methods for sensing physiologic data and draining and analyzing bodily fluids

Номер: AU2020256358A1
Принадлежит: Griffith Hack

Abstract Systems, devices and methods for sensing physiologic data and draining and analyzing bodily fluids are described which are capable of sensing physiologic data based on sensors 5 incorporated into a catheter adapted to reside in any of a urinary tract, gastrointestinal tract, rectal location, pre-peritoneal, pleural space or other body cavity. The devices aid emptying of the bladder, measure urine output and various urine parameters such as oxygen tension, urine conductance and urine specific gravity, monitor renal function, analyze urine parameters, including urine content, including the presence of infection, and track and/or control fluid 10 administration. 16639503_1 (GHMatters) P43852AU01 ...

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21-01-2021 дата публикации

Methods and systems for improving the reliability of orthogonally redundant sensors

Номер: AU2019226130B2
Принадлежит:

A method of calibrating an orthogonally redundant sensor device for determining the concentration of glucose in a body of a user, said sensor device including at least an electrochemical glucose sensor and an optical glucose sensor, the method comprising: receiving a first signal from the electrochemical glucose sensor; receiving a second signal from the optical glucose sensor; performing a respective integrity check on each of said first and second signals; determining whether the first signal can be calibrated, and whether the second signal can be calibrated, wherein said determination is made based on whether the first signal and the second signal pass or fail their respective integrity checks; if it is determined that the first signal can be calibrated, calibrating said first signal to generate an electrochemical sensor glucose (SG) value; if it is determined that the second signal can be calibrated, calibrating said second signal to generate an optical sensor glucose (SG) value; and ...

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16-06-2011 дата публикации

Multiparameter whole blood monitor and method

Номер: AU2006287305B2
Принадлежит:

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24-10-1983 дата публикации

FIBER OPTIC PO2 PROBE

Номер: AU0009059282A
Принадлежит:

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17-09-2015 дата публикации

Method and system for directing a localized biological response to an implant

Номер: AU2010256930B2
Принадлежит:

The invention provides methods for directing a localized biological response of a mammalian body to an implant disposed within the body. In one embodiment, a delivery system is positioned outside the body and adjacent to the implant within the body. The delivery system comprises a first tissue response modifier effective for directing a localized biological response of the body to the implant. The tissue response modifier is nonsurgically delivered from the delivery system into the body in a quantity effective to direct the localized biological response of the body to the implant. The invention also provides an implant system for long-term use comprising an implant and nonsurgical means for delivering a tissue response modifier through the epidermis of the body, the tissue response modifier effective for directing a localized biological response of the body to the implant.

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14-08-2008 дата публикации

A method and system for determining a cerebrovascular autoregulation state of a patient

Номер: AU2008214471A1
Автор: BRADY KEN M, KEN M. BRADY
Принадлежит:

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13-10-2003 дата публикации

CHARACTERIZATION OF MOVING OBJECTS IN A STATIONARY BACKGROUND

Номер: AU2003227315A1
Принадлежит:

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24-09-2002 дата публикации

Physiological monitor for veterinary and human medical use and method

Номер: AU2002252225A1
Принадлежит:

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29-08-2019 дата публикации

Method and system for non-invasively monitoring biological or biochemical parameters of individual

Номер: AU2015212330B2
Принадлежит: Collison & Co

A system and method are presented for use in monitoring one or more conditions of a subject's body. The system comprises a control unit which comprises an input port for receiving image data and data indicative of at least one external stimulation (external field) applied to a portion of the subject's body during collection of the image data therefrom, a memory utility, and a processor utility. The image data is indicative of a sequence of speckle patterns generated by the portion of the subject's body according to a certain sampling time pattern. The processor utility is configured and operable for carrying out the following: processing the image data utilizing the data indicative of the applied external field(s), said processing comprising determining a spatial correlation function between successive speckle patterns in the sequence, and determining a time varying spatial correlation function in the form of a time-varying function of at least one feature of the correlation function indicative ...

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25-02-2016 дата публикации

A co-planar, near field communication telemetry link for an analyte sensor

Номер: AU2014305930A1
Принадлежит:

An inductive sensor system for remote powering and communication with an analyte sensor (e.g., a fully implantable analyte sensor). The system may include an analyte sensor and transceiver. The system may be ferrite-enhanced. The transceiver may implement a passive telemetry for communicating with the analyte sensor via an inductive magnetic link for both power and data transfer. The link may be a co-planar, near field communication telemetry link. The transceiver may include a reflection plate configured to focus flux lines linking the transceiver and the sensor uniformly beneath the transceiver. The transceiver may include an amplifier configured to amplify battery power and provide radio frequency (RF) power to a transceiver antenna.

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04-12-2014 дата публикации

Application of electrochemical impedance spectroscopy in sensor systems, devices, and related methods

Номер: AU2013272046A1
Принадлежит:

A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the ElS-based diagnostics, fusion algorithms, and other processes based on measurement of ElS-based parameters.

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17-09-2015 дата публикации

Method and device for correcting optical signals

Номер: AU2014241420A1
Принадлежит:

An optical device is used to monitor an implant embedded in the tissue of a mammal (e.g., under the skin). The implant receives excitation light from the optical device and emits light that is detected by the optical device, including an analyte-dependent optical signal. Scatter and absorption properties of tissue change over time due to changes in hydration, blood perfusion and oxygenation. The optical device has an arrangement of light sources, filters and detectors to transmit excitation light within excitation wavelength ranges and to measure emitted light within detection wavelengths. Changes in scattering and absorption of light in the tissue, such as diffuse reflectance, are monitored. The light sources, filters and detectors may also be used to monitor autofluorescence in the tissue to correct autofluorescence background.

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16-06-2016 дата публикации

Methods and systems for improving the reliability of orthogonally redundant glucose sensors

Номер: AU2014367039A1
Принадлежит:

Methods and systems for sensor calibration and sensor glucose (SG) fusion are used advantageously to improve the accuracy and reliability of orthogonally redundant glucose sensor devices, which may include optical and electrochemical glucose sensors. Calibration for both sensors may be achieved via fixed-offset and/or dynamic regression methodologies, depending, e.g., on sensor stability and Isig-Ratio pair correlation. For SG fusion, respective integrity checks may be performed for SG values from the optical and electrochemical sensors, and the SG values calibrated if the integrity checks are passed. Integrity checks may include checking for sensitivity loss, noise, and drift. If the integrity checks are failed, in-line sensor mapping between the electrochemical and optical sensors may be performed prior to calibration. The electrochemical and optical SG values may be weighted (as a function of the respective sensor's overall reliability index (RI)) and the weighted SGs combined to obtain ...

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23-07-2020 дата публикации

Systems, devices and methods for sensing physiologic data and draining and analyzing bodily fluids

Номер: AU2015319822B2
Принадлежит: Griffith Hack

Systems, devices and methods for sensing physiologic data and draining and analyzing bodily fluids are described which are capable of sensing physiologic data based on sensors incorporated into a catheter adapted to reside in any of a urinary tract, gastrointestinal tract, rectal location, pre-peritoneal, pleural space or other body cavity. The devices aid emptying of the bladder, measure urine output and various urine parameters such as oxygen tension, urine conductance and urine specific gravity, monitor renal function, analyze urine parameters, including urine content, including the presence of infection, and track and/or control fluid administration.

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09-12-2021 дата публикации

Tissue-Integrating Sensors

Номер: AU2020202697B2
Принадлежит:

TISSUE-INTEGRATING SENSORS Tissue-integrating biosensors, systems comprising these sensors and methods of using these sensors and systems for the detection of one or more analytes are provided.

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07-12-2017 дата публикации

Tissue-Integrating Sensors

Номер: AU2017264987A1
Принадлежит: WRAYS PTY LTD

Tissue-integrating biosensors, systems comprising these sensors and methods of using these sensors and systems for the detection of one or more analytes are provided.

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21-10-2021 дата публикации

DELIVERING AND/OR RECEIVING FLUIDS

Номер: AU2021232809A1
Принадлежит:

The present application generally relates to receiving bodily fluid through a device opening. The device includes a flow activator arranged to cause fluid to be released from a subject. A deployment actuator may actuate the flow activator in a deployment direction, which may in turn cause fluid release from a subject. The flow activator may also be moved in a retraction direction by a retraction actuator.

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01-10-1987 дата публикации

FIBER OPTIC PO2 PROBE

Номер: AU0000565949B2
Принадлежит:

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06-05-1993 дата публикации

SENSORS AND METHODS FOR SENSING

Номер: AU0002636392A
Принадлежит:

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08-02-1990 дата публикации

BLOOD PARAMETER MEASUREMENT SYSTEM

Номер: AU0003806389A
Принадлежит:

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14-09-1995 дата публикации

An analyzing apparatus and method

Номер: AU0002332295A
Принадлежит:

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13-08-1990 дата публикации

INFRARED OXIMETRY MEASURING DEVICE

Номер: AU0004968790A
Принадлежит:

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26-10-2006 дата публикации

SURGICAL INSTRUMENTS WITH SENSORS FOR DETECTING TISSUE PROPERTIES, AND SYSTEMS USING SUCH INSTRUMENTS

Номер: CA0002604563A1
Принадлежит:

A system is provided that furnishes expert procedural guidance based upon patient-specific data gained from surgical instruments incorporating sensors on the instrument's working surface, one or more reference sensors placed about the patient, sensors implanted before, during or after the procedure, the patient's personal medical history, and patient status monitoring equipment. Embodiments include a system having a surgical instrument with a sensor for generating a signal indicative of a property of a subject tissue of the patient, which signal is converted into a current dataset and stored. A processor compares the current dataset with other previously stored datasets, and uses the comparison to assess a physical condition of the subject tissue and/or to guide a procedure being performed on the tissue.

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28-10-2014 дата публикации

METHOD AND APPARATUS FOR MEASURING CANCEROUS CHANGES FROM REFLECTANCE SPECTRAL MEASUREMENTS OBTAINED DURING ENDOSCOPIC IMAGING

Номер: CA0002595213C
Принадлежит: BC CANCER AGENCY, VERISANTE TECHNOLOGY, INC.

... ²²²The present invention provides a new method and device for disease detection, ²more particularly cancer detection, from the analysis of diffuse reflectance ²spectra measured in vivo during endoscopic imaging. The measured diffuse ²reflectance spectra are analyzed using a specially developed light-transport ²model and numerical method to derive quantitative parameters related to tissue ²physiology and morphology. The method also corrects the effects of the ²specular reflection and the varying distance between endoscope tip and tissue ²surface on the clinical reflectance measurements. The model allows us to ²obtain the absorption coefficient (.mu.a) and further to derive the tissue ²micro-vascular blood volume fraction and the tissue blood oxygen saturation ²parameters. It also allows us to obtain the scattering coefficients (.mu.s and ²g) and further to derive the tissue micro-particles volume fraction and size ²distribution parameters.² ...

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26-09-2002 дата публикации

SUBCUTANEOUS ANALYTE SENSOR

Номер: CA0002440854C
Принадлежит: OGILVY RENAULT LLP/S.E.N.C.R.L.,S.R.L.

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02-08-2016 дата публикации

OPTICAL-BASED SENSING DEVICES

Номер: CA0002768913C

An optical-based sensor (10) for detecting the presence or amount of an analyte using both indicator and reference channels. The sensor has a sensor body (12) with a source of radiation embedded therein (18). Radiation emitted by the source interacts with indicator membrane (3) indicator molecules (16) proximate the surface of the body. At least one optical characteristic of these indicator molecules varies with analyte concentration. For example, the level of fluorescence of fluorescent indicator molecules or the amount of light absorbed by light-absorbing indicator molecules can vary as a function of analyte concentration. In addition, radiation emitted by the source also interacts with reference membrane indicator molecules proximate the surface of the body. Radiation (e.g., light) emitted or reflected by these indicator molecules enters and is internally reflected in the sensor body. Photosensitive elements within the sensor body generate both indicator channel and reference channel ...

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15-08-1989 дата публикации

OXIMETRY

Номер: CA1258384A

... 64 An apparatus for in-vivo measurement of blood oxygen levels in a patient is described. The apparatus comprises an elongate probe which is adapted to pass into the oesophagus of a patient, means associated with the probe to illuminate the internal surface of the oesophagus, means for observing light reflected from the internal surface of the oesophagus, and means for determining from the reflected light signal the degree of oxygenation of blood in the internal surface of the oesophagus.

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06-04-1982 дата публикации

FIBER OPTIC PH PROBE

Номер: CA1121242A

A fiber optic pH probe suitable to be implanted in tissue for physiological studies is disclosed. The probe includes an ion permeable membrane envelope which encloses the ends of a pair of optical fibers. A pH sensitive dye indicator composition is present within the envelope. The probe operates on the concept of optically detecting the change in color of a pH sensitive dye.

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26-03-1996 дата публикации

INTRAVASCULAR BLOOD PARAMETER MEASUREMENT SYSTEM

Номер: CA0001338176C

A parameter of blood is sensed in vivo with a system which includes a catheter and a probe. The catheter has a lumen extending therethrough, a proximal end, a distal end and a distal opening at the distal end. The probe includes one or more sensors at its distal end. A saline solution is introduced into the lumen so that there is an interface adjacent the distal opening of the catheter between the blood and saline solution. The probe is received within the catheter and affixed thereto. The interface is moved back and forth in the lumen to expose the sensors to blood so that they can sense the blood parameters of interest.

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19-07-1994 дата публикации

METHOD FOR MANUFACTURING AN OPTICAL PROBE

Номер: CA0001330830C
Принадлежит: HEWLETT PACKARD CO, HEWLETT-PACKARD COMPANY

Optical probes for the invasive measurement of blood parameters consist of at least one sensor (6, 7, 27), each of these sensors (6, 7,27) having a diffusion zone with a selective membrane (20, 24, 29). The sensor or the sensors (6, 7, 27) are surrounded by a stabilizing sheath (5). This sheath (5) is to be fastened on sensor(s) (6, 7, 27) by a glue (17). A silicone glue provides the feature that gas molecules can diffuse through it; therefore, blood gas sensors such as PO2 sensors or pCO2 sensors may be completely embedded in said glue. If a pH sensor (6) is used, it must be placed in the top position of the horizontally lying sheath (5) during manufacturing. The silicone glue then does not cover the diffusion zone of the pH sensor (6) completely. Further, silicone glue provides additional elasticity which improves sensor characteristics.

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21-05-1985 дата публикации

FIBER OPTIC P INO2 XX PROBE

Номер: CA0001187386A1
Принадлежит:

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21-07-2005 дата публикации

IMPLANTABLE APPARATUS FOR SENSING MULTIPLE PARAMETERS

Номер: CA0002548223A1
Принадлежит:

An apparatus for sensing multiple parameters includes an implantable housing and a plurality of implantable sensors disposed within the implantable housing. The plurality of implantable sensors sense parameters in a patient, such as biological or physiological parameters, for example, and each responds to an analyte in the patient. The plurality of implantable sensors may include, but is not limited to, electrochemical, potentiometric, current and optical sensors.

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09-03-2000 дата публикации

OPTICAL-BASED SENSING DEVICES

Номер: CA0002340005A1
Принадлежит:

An optical-based sensor (10) for detecting the presence or amount of an analyte using both indicator and reference channels. The sensor has a sensor body (12) with a source of radiation embedded therein (18). Radiation emitted by the source interacts with indicator membrane (3) indicator molecules (16) proximate the surface of the body. At least one optical characteristic of these indicator molecules varies with analyte concentration. For example, the level of fluorescence of fluorescent indicator molecules or the amount of light absorbed by light-absorbing indicator molecules can vary as a function of analyte concentration. In addition, radiation emitted by the source also interacts with reference membrane indicator molecules proximate the surface of the body. Radiation (e.g., light) emitted or reflected by these indicator molecules enters and is internally reflected in the sensor body. Photosensitive elements within the sensor body generate both indicator channel and reference channel ...

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27-07-2017 дата публикации

SYSTEMS AND METHODS OF DETERMINING ONE OR MORE PROPERTIES OF A CATHETER AND A DISTAL TIP THEREOF

Номер: CA0003015243A1
Принадлежит:

Tip confirmation systems and related methods are disclosed. A method of determining one or more properties of a catheter (200) in a patient comprises advancing a catheter in vasculature of a patient, the catheter coupled to at least one radiation source and at least one detector, transmitting source electromagnetic radiation from the at least one radiation source out of the catheter proximate a distal tip thereof, measuring an intensity of backscattered electromagnetic radiation from the at least one radiation source with the at least one detector, and providing a signal indicative of a location of the distal tip within the vasculature based, at least in part, on the measured intensity of the backscattered electromagnetic radiation. Related systems and methods are also disclosed.

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19-04-2018 дата публикации

INTEGRATED DISEASE MANAGEMENT SYSTEM

Номер: CA0003039682A1
Принадлежит: AIRD & MCBURNEY LP

An integrated disease management system provides patients with simple, quick, and readily available counseling regarding a healthy diabetic lifestyle. The system can include an interactive engine with predictive analytics and machine learning to provide a customized experience for a user. The system can be configured to transmit data to a remote server to perform analysis of received data (e.g., disease management data), to provide feedback to the user (e.g., customized feedback with curated content based on a user's data and interface interactions), and send all or a portion of the data and/or curated content to another user device or remote health management access point (e.g., as cloud storage) where the information can be accessed by healthcare stakeholder.

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30-09-2006 дата публикации

ADHESIVE FLUORESCENCE MEASUREMENT PATCH

Номер: CA0002541233A1
Принадлежит:

An adhesive fluorescence measurement patch for use with a fluorescent light- emitting bead implanted within a user's body includes an adhesive sheet configured for removable adhesion to the user's body, a light emitter attached to the adhesive sheet, and a light detector attached to the adhesive sheet. The light emitter is configured for emitting light that is absorbed by the fluorescent light-emitting bead while the light detector is configured for detecting fluorescent light emitted by the fluorescent light-emitting bead.

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30-09-2006 дата публикации

ADHESIVE FLUORESCENCE MEASUREMENT BAND

Номер: CA0002541231A1
Автор: KERMANI, MAHYAR Z.
Принадлежит:

A fluorescence measurement band for use with a fluorescent light-emitting bead implanted within a user's body includes a band configured for secure and removable positioned about a portion of the user's body, a light emitter attached to the band and a light detector attached to the band. The light emitter of the fluorescence measurement band is configured for emitting light that is absorbed by the fluorescent light- emitting bead while the light detector configured for detecting fluorescent light emitted by the fluorescent light- emitting bead.

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21-10-2008 дата публикации

CONTROLLED RELEASE DEVICE AND METHOD USING ELECTROTHERMAL ABLATION

Номер: CA0002495327C
Принадлежит: MICROCHIPS, INC.

Devices and methods are provided for the controlled release or exposure of reservoir contents. The device includes a reservoir cap formed of an electrically conductive material, which prevents the reservoir contents from passing out from the device and prevents exposure of the reservoir contents to molecules outside of the device; an electrical input lead connected to said reservoir cap; and an electrical output lead connected to said reservoir cap, such that upon application of an electrical current through the reservoir cap, via the input lead and output lead, the reservoir cap ruptures to release or expose the reservoir contents. The reservoir contents can comprise a release system containing drug molecules for release or can comprise a secondary device, such as a sensor. In one embodiment, the controlled release system is incorporated into an implantable drug delivery device.

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21-06-2018 дата публикации

TREATMENT OF A DISEASE OF THE GASTROINTESTINAL TRACT WITH A TNF INHIBITOR

Номер: CA0003045307A1
Принадлежит: SMART & BIGGAR

This disclosure features methods and compositions for treating diseases of the gastrointestinal tract with a TNF inhibitor.

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01-11-2011 дата публикации

MICRO-INVASIVE METHOD FOR PAINLESS DETECTION OF ANALYTES IN EXTRACELLULAR SPACE

Номер: CA0002423077C
Автор: RASKAS, ERIC JULES
Принадлежит: BECTON, DICKINSON AND COMPANY

A method of detecting at least one analyte in extra-cellular spaces includes the step of inserting a microprobe through the stratum corneum toward the stratum basale of the skin of a subject into extra-cellular spaces containing interstitial fluid having at least one analyte to be detected, said microprobe having a diameter at its tip no larger than approximately 10-50 microns. The method further includes optically testing for a predetermined analyte in the extra-cellular space adjacent the distal end of the microprobe without drawing a sample of the interstitial fluid. Preferably the microprobe body includes a sensor layer covering the distal optical tip of the microprobe body, the sensor layer being adapted to interact with a predetermined analyte to be detected in the interstitial fluid, and an optical detector responsive to interaction of the sensor layer with the predetermined analyte to signal detection of said predetermined analyte.

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06-08-2015 дата публикации

METHOD AND SYSTEM FOR NON-INVASIVELY MONITORING BIOLOGICAL OR BIOCHEMICAL PARAMETERS OF INDIVIDUAL

Номер: CA0002937109A1
Принадлежит:

A system and method are presented for use in monitoring one or more conditions of a subject's body. The system comprises a control unit which comprises an input port for receiving image data and data indicative of at least one external stimulation (external field) applied to a portion of the subject's body during collection of the image data therefrom, a memory utility, and a processor utility. The image data is indicative of a sequence of speckle patterns generated by the portion of the subject's body according to a certain sampling time pattern. The processor utility is configured and operable for carrying out the following: processing the image data utilizing the data indicative of the applied external field(s), said processing comprising determining a spatial correlation function between successive speckle patterns in the sequence, and determining a time varying spatial correlation function in the form of a time-varying function of at least one feature of the correlation function indicative ...

Подробнее
27-04-2021 дата публикации

METHODS AND SYSTEMS FOR IMPROVING THE RELIABILITY OF ORTHOGONALLY REDUNDANT SENSORS

Номер: CA2931955C

Methods and systems for sensor calibration and sensor glucose (SG) fusion are used advantageously to improve the accuracy and reliability of orthogonally redundant glucose sensor devices, which may include optical and electrochemical glucose sensors. Calibration for both sensors may be achieved via fixed-offset and/or dynamic regression methodologies, depending, e.g., on sensor stability and Isig-Ratio pair correlation. For SG fusion, respective integrity checks may be performed for SG values from the optical and electrochemical sensors, and the SG values calibrated if the integrity checks are passed. Integrity checks may include checking for sensitivity loss, noise, and drift. If the integrity checks are failed, in-line sensor mapping between the electrochemical and optical sensors may be performed prior to calibration. The electrochemical and optical SG values may be weighted (as a function of the respective sensor's overall reliability index (RI)) and the weighted SGs combined to obtain ...

Подробнее
19-11-2009 дата публикации

OPTICAL SENSOR APPARATUS AND METHOD OF USING SAME

Номер: CA0002722593A1
Принадлежит:

An apparatus for, and method of, sensing characteristics of a vessel and a fluid conveyed therein.

Подробнее
30-03-2021 дата публикации

BIOPSY DEVICE WITH INTEGRATED OPTICAL SPECTROSCOPY GUIDANCE

Номер: CA2860026C

An optical spectroscopy probe for providing optical spectroscopy guidance of a mechanical biopsy procedure, and a tissue biopsy device including an optical spectroscopy probe. The optical spectroscopy probe is positionable in a lumen of a mechanical biopsy device. The probe may enable optical spectroscopy guidance in biopsy procedures, include brain biopsy procedures.

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05-07-2012 дата публикации

System for continuous measuring, recording and monitoring of the splanchnic tissue perfusion and the pulmonary physiological dead space, and use thereof

Номер: US20120172683A1
Принадлежит: Individual

The present invention relates to a new system for measuring, recording and monitoring the splanchnic tissue perfusion and the pulmonary physiological dead space in an automated way, both continuously and intermittently, and in real time, which is easy to manage and generates information easy to interpret. Said system comprises at least four measuring devices of medical parameters, connected to a device receiving, converting, storing, integrating, processing, and allowing the management and display of the data recorded in the measurements and the parameters estimated by the same. For this purpose, said device comprises a specific computer program of estimation of parameters related to the measurement of the splanchnic tissue perfusion and the pulmonary physiological dead space, from the data derived from the measuring devices. Likewise, the present invention is related to the use of a device for measuring, recording and monitoring of the splanchnic tissue perfusion and the pulmonary physiological dead space.

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27-09-2012 дата публикации

Sensor Calibration

Номер: US20120240656A1
Принадлежит: Glysure Ltd

A sensor kit comprising a sensor for detecting an analyte, a sensor housing and a calibration chamber. The calibration chamber comprises a first compartment containing a first calibration solution and a second compartment containing a source of the analyte to be detected. A dividing material is located between the first and second compartments enabling them to be mixed on breakage or removal of the dividing material. Further compartment(s) containing further source(s) of the analyte may optionally be provided. Calibration can carried out by (a) taking a reading of the analyte concentration of the first calibration solution, (b) mixing the contents of the first and second compartments by breaking or removing the dividing material, and (c) taking a reading of the analyte concentration of the resulting mixture. Steps (b) and (c) can be repeated for further compartment(s) to provide further reading(s) if desired.

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15-11-2012 дата публикации

Tissue imaging system and in vivo monitoring method

Номер: US20120289801A1
Автор: Hiroshi Yamaguchi
Принадлежит: Fujifilm Corp

An in vivo monitoring method in a laparoscope system is provided. An object image is sequentially created with expression of a surface color of an object in a body cavity. A lock area (specific area) is determined within the object image, the lock area being movable by following motion of the object. A monitor image including a graph of oxygen saturation is generated according to a part image included in the object image and located in the lock area. The monitor image is displayed. Preferably, the oxygen saturation of the lock area is acquired according to two spectral data with respect to wavelengths of which an absorption coefficient is different between oxidized hemoglobin and reduced hemoglobin in data of the object image. The object is constituted by a blood vessel.

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29-11-2012 дата публикации

Optical sensor and method for detecting a patient condition

Номер: US20120303081A1
Автор: William T. Donofrio
Принадлежит: MEDTRONIC INC

An implantable medical device for monitoring tissue perfusion that includes a light source emitting a light signal and a light detector receiving emitted light scattered by a volume of body tissue. The light detector emits a signal having an alternating current component corresponding to the pulsatility of blood flow in the body tissue volume. A processor receives the current signal and determines a patient condition in response to the alternating component of the current signal.

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28-02-2013 дата публикации

Detection of lipid core plaque cap thickness

Номер: US20130053698A1
Принадлежит: Infraredx Inc

Described are methods, systems, and apparatus, including computer program products for examining a blood vessel wall. The blood vessel wall is illuminated with near-infrared light. Reflected near-infrared light from the blood vessel wall is received. A reflectance spectrum based on the reflected near-infrared light from the blood vessel wall is determined. Whether the reflectance spectrum is indicative of a presence of a lipid core plaque (LCP) by applying an LCP classifier to the reflectance spectrum is determined. A thickness of an LCP cap is determined by applying an LCP cap thickness classifier to the reflectance spectrum if the reflectance spectrum is indicative of the presence of the LCP. Indicia of the thickness of the LCP cap are displayed.

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07-03-2013 дата публикации

Optical sensing systems and methods

Номер: US20130060106A1
Принадлежит: Medtronic Minimed Inc

An optical glucose sensor may include an optical fiber and a glucose-permeable membrane having a hollow interior and being coupled to the optical fiber's distal end. The membrane's hollow interior provides a compartment to house a competitive glucose binding affinity assay. The assay may include a glucose analog that may be labeled with a dye, and a glucose receptor that may be labeled with a fluorophore. The optical fiber may include a compound parabolic concentrator tip, and the compartment may additionally house a reflector disposed so as to face the optical fiber's tip. A fluorophore-labeled assay may be interrogated by an optical interrogating system including a light source and a filter substrate having one or more coatings to effect, e.g., an excitation filter and/or an emission filter. The interrogating system may be manufactured as a stacked planar integrated optical system and diced into smaller units.

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21-03-2013 дата публикации

INTRAVASCULAR GLUCOSE SENSOR

Номер: US20130072768A1
Принадлежит:

A glucose sensor for intravascular measurement of glucose concentration wherein the sensor is arranged to measure glucose concentration by monitoring the lifetime of the fluorophore, the sensor comprising:—an indicator system comprising a receptor for selectively binding to glucose and a fluorophore associated with said receptor, wherein the fluorophore has a life-time of less than 100 ns;—a light source;—an optical fibre arranged to direct light from the light source onto the indicator system; —a detector arranged to receive fluorescent light emitted from the indicator system; and—a signal processor arranged to determine information related to a fluorescence lifetime of the fluorophore based on at least the output signal of the detector. 1. A glucose sensor for intravascular measurement of glucose concentration wherein the sensor is arranged to measure glucose concentration by monitoring the lifetime of the fluorophore , the sensor comprising:an indicator system comprising a receptor for selectively binding to glucose and a fluorophore associated with said receptor, wherein the fluorophore has a lifetime of less than 100 ns;a light source;an optical fibre arranged to direct light from the light source onto the indicator system;a detector arranged to receive fluorescent light emitted from the indicator system; anda signal processor arranged to determine information related to a fluorescence lifetime of the fluorophore based on at least the output signal of the detector.2. A sensor according to claim 1 , wherein the detector is a single photon avalanche diode.3. A sensor according to claim 2 , further comprising:a driver arranged to modulate the light source intensity at a first frequency;a bias voltage source arranged to apply a bias voltage to the single photon avalanche diode, wherein the bias voltage is modulated at a second frequency, different from the first frequency, and wherein the bias voltage is above the breakdown voltage of the single photon avalanche ...

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04-04-2013 дата публикации

Controlling Transfer of Objects Affecting Optical Characteristics

Номер: US20130085352A1
Принадлежит: PALO ALTO RESEARCH CENTER INCORPORATED

An implantable product such as an article, device, or system can include analyte and non-analyte containers in parts that can be operated as optical cavities. The product can also include fluidic components such as filter assemblies that control transfer of objects that affect or shift spectrum features or characteristics such as by shifting transmission mode peaks or reflection mode valleys, shifting phase, reducing maxima or contrast, or increasing intermediate intensity width such as full width half maximum (FWHM). Analyte, e.g. glucose molecules, can be predominantly included in a set of objects that transfer more rapidly into the analyte container than other objects, and can have a negligible or zero rate of transfer into the non-analyte container; objects that transfer more rapidly into the non-analyte container can include objects smaller than the analyte or molecules of a set of selected types, including, e.g., sodium chloride. Output light from the containers accordingly includes information about analyte. 1. An article comprising:first and second parts; each of the first and second parts including a respective container and being operable as an optical cavity with a respective optical spectrum characteristic that can be affected by presence of spectrum-affecting objects in the container; the respective container having a respective set of one or more bounding regions through which objects in fluid can transfer between the container's interior and; andfirst and second fluidic components that control transfer of objects in bodily fluid through the respective bounding regions of the first and second parts, respectively; the first fluidic component permitting transfer of a first set of the spectrum-affecting objects into the first container at a more rapid rate than spectrum-affecting objects not in the first set; the second fluidic component permitting transfer of a second set of the spectrum-affecting objects into the second container at a more rapid rate ...

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11-04-2013 дата публикации

ANALYTE SENSOR METHOD AND APPARATUS

Номер: US20130090536A1
Принадлежит:

Provided herein are systems, methods, and apparatuses for an analyte sensor. In one aspect, an analyte sensing device comprises a sensor body member including at least one nanopore and an optical conduit in optical communication with the sensor body member. The optical conduit transmits optical energy to the sensor body member and receives reflected optical energy back from the sensor body member. A photodetector is optically coupled to the optical conduit to determine an optical parameter from the reflected optical energy. 1a. a sensor body member including at least one nanopore;b. an optical conduit in optical communication with the sensor body member and the nanopore, wherein the optical conduit transmits optical energy to the sensor body member and receives optical energy from the sensor body member; andc. a photodetector optically coupled to the optical conduit to determine an optical parameter from the sensor body member.. An analyte sensing device comprising: The present application claims the benefit of U.S. Provisional Application Ser. No. 60/864,280, filed Nov. 3, 2006. The aforementioned application is herein incorporated by reference in its entirety.The present invention relates generally to analyte sensors. More specifically, the invention relates to analyte sensors using Optical Coherence Tomography (OCT).In OCT, light from a broad band light source is split by an optical fiber splitter with one fiber directing light to a sample path and the other optical fiber directing light to a reference path mirror. The distal end of the sample path can be interfaced with a scanning device, or the like. The reflected light from the scanning device is recombined with the signal from the reference mirror forming interference fringes (measured by a photovoltaic detector) allowing precise depth-resolved imaging or optical measurements to be taken. OCT has the potential to measure the concentrations of numerous analytes.While there are numerous procedures to measure ...

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18-04-2013 дата публикации

System for In Vivo Biosensing Based on the Optical Response of Electronic Polymers

Номер: US20130096406A1
Принадлежит: Ohio State University

A system for continuous in vivo biosensing of specific analyte molecule concentrations based on the dynamic optical properties of electronic polymers is disclosed. The biosensor system includes at least one implant member subcutaneously exposed to the interstitial fluid of the subject, and a reader member at least temporarily positioned over the implant member to probe it with light of specific wavelengths through the skin. The system has many potential applications, including the real-time monitoring of blood glucose levels in diabetics as a method to supplement or replace conventional capillary blood testing.

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25-04-2013 дата публикации

Systems and Methods for Visualizing Ablated Tissue

Номер: US20130102862A1
Принадлежит: The George Washington University

Systems and methods for visualizing ablated tissue are disclosed. In some embodiments, a system for imaging tissue includes a catheter having an expandable balloon at a distal end, an illumination device positioned within the balloon for propagating light from an external light source for illuminating a tissue being treated to excite native nicotinamide adenine dinucleotide hydrogen (NADH) in the tissue, and an imaging device positioned within the balloon for detecting fluorescence from the illuminated tissue, the imaging device being configured to communicate detected NADH fluorescence to an external fluorescence camera. 1. A system for imaging tissue comprising:a catheter having an expandable balloon at a distal end;an illumination device positioned within the balloon for propagating light from an external light source for illuminating a tissue being treated to excite native reduced nicotinamide adenine dinucleotide (NADH) in the tissue; andan imaging device positioned within the balloon for detecting fluorescence from the illuminated tissue, the imaging device being configured to communicate detected NADH fluorescence to an external fluorescence camera.2. The system of further comprising an ablation device for ablating the tissue.3. The system of claim 1 , wherein the tissue being treated is heart tissue.4. The system of further comprising a display system connected to the camera for generating an image of the illuminated tissue based on the detected NADH fluorescence.5. The system of claim 4 , wherein in the image tissue that was effected by a treatment is illustrated as having less fluorescence than tissue not affected by the treatment6. The system of further comprising a dichroic mirror and a plurality of filters for conditioning light from the light source and light reflected by the tissue.7. A system for imaging tissue comprising:a catheter system configured to position an illumination device and an imaging device in proximity to a tissue;an ablation device ...

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09-05-2013 дата публикации

Sample cell for fluid analysis system

Номер: US20130114068A1
Автор: Eugene Lim, Roger Tong
Принадлежит: Optiscan Biomedical Corp

Systems and method are disclosed for determining a concentration of an analyte (e.g., glucose) in a fluid (e.g., blood). The system can draw blood from a patient and deliver the blood to a sample cell. A centrifuge motor can spin the sample cell to separate the fluid into a plurality of components (plasma, red blood cells, etc.). A particular component of the fluid (e.g., plasma) may be positioned at a sample portion of the sample cell after centrifuging such that the concentration of the analyte is measured in the particular component of the fluid (e.g., plasma). The sample cell can include a cuvette that has two window pieces sandwiched between two clamshell pieces, and where the sample portion of the sample cell is defined by a gap between the window pieces.

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09-05-2013 дата публикации

SYSTEM FOR IDENTIFYING THE LOCATION OF A DEVICE WITHIN A PATIENT'S BODY IN ORDER TO LOCATE THE FOSSA OVALIS FOR TRANS-SEPTAL PROCEDURES

Номер: US20130116522A1
Принадлежит: MEDTRONIC ABLATION FRONTIERS LLC

A system and method for identifying the location of a medical device within a patient's body may be used to localize the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis. 1. A medical device for identifying the location of a medical device within a patient's body comprising:an intravascular catheter;an optical array comprising a light emitter and a plurality of receivers for detecting reflected light, wherein two or more of the plurality of receivers are each positioned at different distances from the emitter; anda spectrometer in communication with the emitter and the plurality of receivers.2. The medical device of claim 1 , wherein the optical array further comprises a face plate claim 1 , wherein the emitter and each of the plurality of receivers are located on the face plate.3. The medical device of claim 1 , wherein the catheter further comprises a lumen and the face plate is annular and surrounds an opening to the lumen at a distal region of the catheter.4. The medical device of claim 3 , wherein the catheter has a longitudinal axis and the annular face plate lies in a plane that is substantially orthogonal to the longitudinal axis of the catheter.5. The medical device of claim 4 , wherein the emitter and plurality of receivers are positioned radially around the lumen on the face plate.6. The medical device of claim 5 , wherein the plurality of receivers comprises at least a first receiver claim 5 , a second receiver claim 5 , and a third receiver.7. The medical device of claim 6 , wherein the first receiver ...

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23-05-2013 дата публикации

OPTICAL RESONATOR DIAGNOSTIC DEVICE AND METHODS OF USE

Номер: US20130130254A1
Принадлежит: California Institute of Technology

An implantable diagnostic device in accordance with the present disclosure provides various benefits such as a compact size thereby allowing implanting of the device inside animate objects; low cost due to incorporation of inexpensive detection circuitry and the use of conventional IC fabrication techniques; re-usability by heating thereby allowing multiple diagnostic tests to be performed without discarding the device; and a configuration that allows performing of simultaneous and/or sequential diagnostic tests for detecting one or more similar or dissimilar target molecules concurrently or at different times. 1. A diagnostic device fabricated in silicon , the diagnostic device comprising:a first optical resonator comprising a capture agent located at a binding site;an optical waveguide configured for propagating a laser beam and for coupling a first portion of the propagated laser beam into the first optical resonator; anda first detector configured for detecting a) a first resonant wavelength generated by the first optical resonator when no binding reaction is present at the binding site, and b) a second resonant wavelength generated by the first optical resonator upon undergoing a change in refractive index when a binding reaction is present at the first binding site.2. The diagnostic device of claim 1 , wherein detecting the first resonant wavelength comprises detecting a first current in the detector claim 1 , and detecting the second resonant wavelength comprises detecting a change in the first current.3. The diagnostic device of claim 2 , wherein the optical waveguide is a linear optical waveguide and the first optical resonator is a linear nanobeam resonator comprising one or more holes in the linear optical waveguide.4. The diagnostic device of claim 3 , wherein the diagnostic device is packaged for placement inside an animate object claim 3 , the placement comprising placing the diagnostic device in a blood stream or in tissue close to the bloodstream of ...

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30-05-2013 дата публикации

Delivering and/or receiving fluids

Номер: US20130138058A9
Принадлежит: Seventh Sense Biosystems Inc

The present invention generally relates to receiving bodily fluid through a device opening. In one aspect, the device includes a flow activator arranged to cause fluid to be released from a subject. A deployment actuator may actuate the flow activator in a deployment direction, which may in turn cause fluid release from a subject. The flow activator may also be moved in a retraction direction by a retraction actuator. In one aspect, the device may include a vacuum source that may help facilitate fluid flow into the opening of the device and/or may help facilitate fluid flow from the opening to a storage chamber. In one aspect, a device actuator may enable fluid communication between the opening and the vacuum source and the flow activator may be actuated after the enablement of fluid communication.

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13-06-2013 дата публикации

BIO-DIAGNOSTIC TESTING SYSTEM AND METHODS

Номер: US20130149714A1
Принадлежит:

An implantable diagnostic device in accordance with the present disclosure includes a probe assembly that can be implemented in a variety of ways. A few example implementations include: a needle inside which is located a bio-sensor chip (the needle being insertable into a human being); a compact package containing the bio-sensor chip (the compact package configured for placement inside a catheter); or a silicon-based bio-sensor package configured for insertion into a vein. 1. A bio-diagnostic system comprising:a probe assembly configured for insertion into an animate object, the probe assembly comprising:an optical waveguide configured for propagating a light beam; andan optical resonator incorporating a capture agent placed upon a binding site that is exposed to a fluid, the optical resonator configured to receive at least a portion of the propagated light beam and generate therefrom, a first resonant wavelength when no binding reaction is present at the binding site, and a second resonant wavelength when a binding reaction is present at the first binding site, the binding reaction modifying a refractive index of the optical resonator.2. The bio-diagnostic system of claim 1 , wherein the probe assembly is at least one of: a) a needle comprising a first bio-sensor chip that includes the optical waveguide and the first optical resonator claim 1 , b) a catheter comprising a second bio-sensor chip that includes the optical waveguide and the first optical resonator claim 1 , or c) a third bio-sensor chip configured for insertion into the vein claim 1 , the third bio-sensor chip comprising the optical waveguide and the first optical resonator.3. The bio-diagnostic system of claim 2 , wherein at least one of the needle or the catheter is a part of an intravenous (IV) apparatus.4. The bio-diagnostic system of claim 2 , wherein the needle has a sub-mm diameter.5. The bio-diagnostic system of claim 4 , wherein the fluid is one of: blood claim 4 , lymphatic fluid claim 4 , ...

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27-06-2013 дата публикации

Analyte Sensor

Номер: US20130165756A1
Принадлежит: DexCom, Inc.

Systems and methods of use for continuous analyte measurement of a host's vascular system are provided. In some embodiments, a continuous glucose measurement system includes a vascular access device, a sensor and sensor electronics, the system being configured for insertion into communication with a host's circulatory system. 1. A method for measuring an analyte in a host , comprising:exposing a continuous analyte detection system to a sample, wherein the continuous analyte detection system comprises a continuous analyte sensor configured for contact with a sample from a circulatory system of a host in vivo and configured to generate a first signal associated with a test analyte and a second signal associated with a reference analyte, and a reference sensor configured to generate a reference signal associated with the reference analyte;receiving the first signal, the second signal, and the reference signal;calculating a calibration factor associated with a sensitivity of the continuous analyte sensor; andcalibrating the first signal, wherein calibrating comprises using the calibration factor.2. The method of claim 1 , wherein the exposing step further comprises simultaneously exposing the continuous analyte sensor and the reference sensor to the sample.3. The method of claim 1 , wherein the receiving step further comprises receiving the first signal from a first working electrode disposed under an enzymatic portion of a membrane system.4. The method of claim 3 , wherein the receiving step further comprises receiving the second signal from the first working electrode.5. The method of claim 3 , wherein the receiving step further comprises receiving the second signal from a second working electrode disposed under the membrane system.7. The method of claim 5 , wherein the receiving step further comprises receiving a non-analyte-related signal from a third working electrode disposed under a non-enzymatic portion of the membrane system.8. The method of claim 1 , wherein ...

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04-07-2013 дата публикации

CALCULATION APPARATUS AND CALCULATION METHOD

Номер: US20130172697A1
Принадлежит:

[Object] To provide a calculation apparatus and a calculation method capable of calculating pharmaceutical concentration in a tissue in real time. 1. A calculation apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical , the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence , with the excitation light emitted from a tip portion of a laser catheter , comprising:a connector to/from which the laser catheter is capable of being attached/detached;a light source for outputting the excitation light to the laser catheter via the connector; anda detection unit for detecting intensity of the fluorescence, the fluorescence being entered from the laser catheter via the connector, to calculate concentration of the photo-sensitive pharmaceutical in a tissue, the tip portion of the laser catheter contacting the tissue.2. The calculation apparatus according to claim 1 , further comprising:a controller for calculating the concentration of the photo-sensitive pharmaceutical in the tissue, the tip portion of the laser catheter contacting the tissue, based on intensity of the detected fluorescence.3. The calculation apparatus according to claim 2 , whereinthe controller outputs a signal to prompt to additionally administer the photo-sensitive pharmaceutical based on the calculated concentration.4. The calculation apparatus according to claim 2 , whereinthe controller calculates an excitation-light-irradiation protocol based on the calculated concentration, and outputs a calculation result.5. A calculation method claim 2 , comprising:irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser catheter;extracting the fluorescence corresponding to the irradiated excitation light via the laser catheter; andcalculating concentration of the photo-sensitive ...

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04-07-2013 дата публикации

ANALYTE SENSOR WITH EXTENDED RANGE OF DETECTION

Номер: US20130172699A1
Автор: Rebec Mihailo V.
Принадлежит: WELLSENSE, INC.

Embodiments provide sensors, such as implantable sensors, and methods of producing such sensors. An implantable sensor may include a base, one or more chambers, and one or more sensor reagents. A membrane may be coupled to the chambers over the sensor reagents. The implantable sensor may be at least partially implanted into the dermis of an animal. One or more of the sensor reagents may emit light or exhibit a color change in response to the presence of a target analyte or reaction product thereof. The response may be detected and analyzed by the user or by a reader device to determine the target analyte concentration. 2. The analyte sensor of claim 1 , further comprising one or more membranes coupled to the base claim 1 , the one or more membranes being permeable to a target analyte.3. The analyte sensor of claim 2 , wherein the one or more membranes includes a first membrane portion and a second membrane portion claim 2 , wherein the permeability of the first membrane portion to the target analyte is greater than the permeability of the second membrane portion to the target analyte.4. The analyte sensor of claim 1 , the base defining first and second chambers therein claim 1 , the first analyte reagent system disposed in the first chamber and the second analyte reagent system disposed in the second chamber.5. The analyte sensor of claim 1 , the base defining a first chamber therein claim 1 , the first and second analyte reagent systems disposed in the first chamber.6. The analyte sensor of claim 1 , wherein the first and second analyte reagent systems are configured to exhibit corresponding first and second colors upon exposure to the given concentration of the analyte claim 1 , said first and second colors being different colors.7. The analyte sensor of claim 6 , wherein at least one of the first and second colors is a color in the infrared range.8. The analyte sensor of claim 1 , wherein the first analyte reagent system and the second analyte reagent system have ...

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04-07-2013 дата публикации

NON-INVASIVE MEASUREMENT OF BLOOD OXYGEN SATURATION

Номер: US20130172703A1

A method for non-invasive determination of oxygen saturation of blood within a deep vascular structure of a human or animal patient comprising locating on skin of the patient in a vicinity of the deep vascular structure of interest emitter and receiver elements of a light oximeter device, wherein optimal location of said elements is achieved through matching of a plethysmography trace obtained from the oximeter device to known plethysmography characteristics of the deep vascular structure of interest, wherein the emitter element emits light at wavelengths of from about 1045 nm to about 1055 nm and from about 1085 nm to about 1095 nm, and wherein oxygen saturation is determined from a ratio of light absorbed at these two wave-lengths by haemoglobin in blood within the vascular structure of interest. 1. A method for non-invasive determination of oxygen saturation of blood within a deep vascular structure of a human or animal patient comprising locating on skin of the patient in a vicinity of the deep vascular structure of interest emitter and receiver elements of a light oximeter device , wherein optimal location of said elements is achieved through matching of a plethysmography trace obtained from the oximeter device to known plethysmography characteristics of the deep vascular structure of interest , wherein the emitter element emits light at wavelengths of from about 1045 nm to about 1055 nm and from about 1085 nm to about 1095 nm , and wherein oxygen saturation is determined from a ratio of light absorbed at these two wavelengths by haemoglobin in blood within the vascular structure of interest.2. The method of wherein the deep vascular structure of interest is selected from the internal jugular vein claim 1 , superior sagittal sinus claim 1 , transverse sinus claim 1 , sigmoid sinus claim 1 , subclavian vein claim 1 , femoral vein claim 1 , brachiocephalic vein claim 1 , inferior vena cava claim 1 , superior vena cava claim 1 , right atrium claim 1 , right ...

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04-07-2013 дата публикации

Determining apparatus and determining method

Номер: US20130172863A1
Принадлежит: KEIO UNIVERSITY, Sony Corp

A photodynamic therapy apparatus as a determining apparatus is the photodynamic therapy apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, or a tissue absorbing the excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser catheter, including a connector, a light source, and a light detection unit. The laser catheter is capable of being attached/detached to/from the connector. The light source outputs the excitation light to the laser catheter via the connector. The light detection unit detects intensity or a spectrum of the fluorescence, the fluorescence being entered from the laser catheter via the connector, to determine whether the tip portion of the laser catheter contacts the tissue or not.

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01-08-2013 дата публикации

Compositions And Methods For Measurement of Analytes

Номер: US20130197326A1
Принадлежит: NORTHEASTERN UNIVERSITY

Disclosed herein are compositions comprising an oblong optode sensing agent. The oblong optode sensing agent comprises a core and a semipermeable membrane, wherein the core comprises one or more sensors configured to bind to an analyte. In addition, methods of making and detecting the oblong optode sensing agents are disclosed. 1. An oblong optode sensing agent , the oblong optode sensing agent comprising a core and a semipermeable membrane , wherein the core comprises one or more sensors configured to bind to an analyte.2. The optode sensing agent of claim 1 , wherein the one or more sensors covalently bind to the analyte.3. The optode sensing agent of claim 1 , wherein the one or more sensors are fluorescent sensors.4. The optode sensing agent of claim 2 , wherein the analyte is selected from the group consisting of electrolytes claim 2 , salts claim 2 , hormones claim 2 , steroids claim 2 , small molecules claim 2 , drugs claim 2 , and saccharides.5. The optode sensing agent of claim 1 , wherein the core further comprises a polymer.6. The optode sensing agent of claim 1 , wherein the semipermeable membrane comprises a hydrogel.7. The optode sensing agent of claim 5 , wherein the semipermeable membrane comprises a biocompatible hydrogel.8. The optode sensing agent of claim 1 , wherein the semipermeable membrane is permeable to analyte and impermeable to the one or more sensors.9. The optode sensing agent of claim 5 , wherein the core comprises one or more polymers selected from the group consisting of polyvinyl chloride claim 5 , polylactic co-glycolic acid claim 5 , methacrylate claim 5 , and polycaprolactone10. The optode sensing agent of claim 1 , wherein the optode sensing agent has a circular cross-section.11. The optode sensing agent of claim 1 , wherein the optode sensing agent has a rectangular shape.12. The optode sensing agent of claim 10 , wherein the optode sensing agent has a length of about 40 μm to about 60 μm.13. The optode sensing agent of claim ...

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01-08-2013 дата публикации

PHYSIOLOGICAL MONITOR

Номер: US20130197330A1
Принадлежит: MASIMO CORPORATION

A patient monitor has multiple sensors adapted to attach to tissue sites of a living subject. The sensors generate sensor signals that are responsive to at least two wavelengths of optical radiation after attenuation by pulsatile blood within the tissue sites. 1. (canceled)2. A patient monitor capable of measuring at least two physiological parameters , the patient monitor comprising:a display capable of displaying a measured value of a first physiological parameter of body tissue of a monitored patient in a common portion of the display or displaying a measured value of a second physiological parameter of the body tissue in the common portion of the display,wherein the common portion of the display changes to displaying, at least, the other of the measured values based on an occurrence of a triggering event.3. The patient monitor of claim 2 , wherein claim 2 , based on the triggering event claim 2 , the common portion of the display changes from displaying one of the measured values of the first or second physiological parameters to displaying the other of the measured values.4. The patient monitor of claim 2 , wherein the triggering event comprises an alarm condition.5. The patient monitor of claim 2 , wherein the common portion of the display is configured to display the first physiological parameter and the second physiological parameter after the occurrence of the triggering event.6. The patient monitor of claim 2 , wherein activation of a user input causes the common display area to change from displaying one of the measured values of the first or second physiological parameter to displaying the other of the measured value of the first or second physiological parameter.7. The patient monitor of claim 2 , wherein the common display area is configured to default to displaying one of the measured values of the first or second physiological parameters.8. The patient monitor of claim 2 , wherein the measured value of the first physiological parameter comprises an ...

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15-08-2013 дата публикации

DIGITAL ASIC SENSOR PLATFORM

Номер: US20130211213A1
Принадлежит: Senseonics, Incorporated

The present invention relates to an optical sensor that may be implanted within a living animal (e.g., a human) and may be used to measure the concentration of an analyte in a medium within the animal. The optical sensor may wirelessly receive and may be capable of bi-directional data communication. The optical sensor may include a semiconductor substrate in which various circuit components, one or more photodectors and/or a light source may be fabricated. The circuit components fabricated in the semiconductor substrate may include a comparator, an analog to digital converter, a temperature transducer, a measurement controller, a rectifier and/or a nonvolatile storage medium. The comparator may output a signal indicative of the difference between the outputs of first and second photodetectors. The measurement controller may receive digitized temperature, photodetector and/or comparator measurements and generate measurement information, which may be wirelessly transmitted from the optical sensor. 1. An optical sensor for implantation within a living animal and measurement of a concentration of an analyte in a medium within the living animal , the optical sensor comprising:indicator molecules having an optical characteristic responsive to the concentration of the analyte, the indicator molecules being configured to interact with the analyte in the medium within the living animal when the optical sensor is implanted within the living animal;a semiconductor substrate;a first photodetector mounted on or fabricated in the semiconductor substrate and configured to output a first analog light measurement signal indicative of the amount of light received by the first photodetector;a second photodetector mounted on or fabricated in the semiconductor substrate and configured to output a second analog light measurement signal indicative of the amount of light received by the second photodetector, wherein the first and second photodetectors are symmetrically arranged relative to ...

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15-08-2013 дата публикации

ENDOSCOPE SYSTEM, PROCESSOR DEVICE THEREOF, AND IMAGE PRODUCING METHOD

Номер: US20130211217A1
Принадлежит: FUJIFILM Corporation

First and second white light is generated by excitations of phosphors with first and second laser beams having center wavelengths of 473 nm and 445 nm, respectively. The first and second white light is applied, in respective frames, sequentially to a region of interest in a subject. A color image sensor images the region of interest in the each frame. Based on a shift amount, calculated from green signals of first and second frames, between images, an image of a blue signal of the first frame is moved to be aligned with an image of a green signal and an image of a red signal of the second frame. After the alignment, an oxygen saturation image representing an oxygen saturation level of hemoglobin in blood is produced from the blue signal of the first frame and green and red signals of the second frame, and displayed on a display. 1. An endoscope system comprising:a lighting section for applying at least first illumination light and second illumination, light, in respective frames, to a region of interest, a wavelength range of the first illumination light being different from a wavelength range of the second illumination light, the region of interest including a blood vessel;an image signal acquisition section having a color image sensor with an array of pixels of at least three primary colors, the image signal acquisition section imaging the region of interest in the each frame, the image signal acquisition section imaging the region of interest illuminated with the first illumination light to acquire three color signals of a first frame, the image signal acquisition section imaging the region of interest illuminated with the second illumination light to acquire three color signals of a second frame;a shift amount calculator for calculating a shift amount between an image of the first frame and an image of the second frame based on the color signals of same color;a registration section for aligning images of predetermined color signals, used for calculating an ...

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22-08-2013 дата публикации

CONTROL OF BIOFOULING IN IMPLANTABLE BIOSENSORS

Номер: US20130213110A1
Принадлежит:

Disclosed herein is a device comprising a biosensor having disposed upon it a coating; the coating comprising a polymer matrix; where the polymer matrix is operative to facilitate the inwards and outwards diffusion of analytes and byproducts to and from the sensing element of the biosensor; and a sacrificial moiety; the sacrificial moiety being dispersed in the polymer matrix, where the sacrificial moiety erodes with time and increases the porosity of the polymer matrix thus offsetting decreases in analyte permeability as a result of biofouling. 1. A device comprising: a polymer matrix; where the polymer matrix is operative to facilitate an inwards and outwards diffusion of analytes, byproducts and other water soluble entities towards a sensing element of the biosensor; and', 'a sacrificial moiety; the sacrificial moiety being dispersed in the polymer matrix, where the sacrificial moiety erodes with time and increases the porosity of the polymer matrix thus offsetting decreases in analyte permeability as a result of biofouling., 'a biosensor having disposed upon it a coating; the coating comprising2. The device of claim 1 , where the erosion of sacrificial moieties creates a new implantable device-tissue interface; the new implantable device-tissue interface presenting a fresh surface to biofouling media to re-establish analyte transport within the polymeric matrix.3. The device of claim 1 , where the polymer matrix comprises hydrogels claim 1 , xerogels claim 1 , organogels claim 1 , absorbent polymers claim 1 , dip-coated or layer-by-layer coated polyelectrolytes claim 1 , electropolymerized polymers claim 1 , or combinations thereof.4. The device of claim 1 , where the polymeric matrix experiences a ‘partial’ or ‘no’ collapse following the erosion of the sacrificial moieties.5. The device of claim 1 , where the sacrificial moieties comprise a biodegradable polymer.6. The device of claim 5 , where the biodegradable polymer is a polyanhydride claim 5 , polyaspirin ...

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22-08-2013 дата публикации

ANALYTE SENSOR

Номер: US20130217983A1
Принадлежит: WELLSENSE, INC.

Embodiments provide analyte sensors, such as implantable analyte sensors, and methods of producing the same. An implantable sensor may include a base with a plurality of chambers. One or more sensor reagents may be retained within the chambers to form analysis regions. A membrane may be coupled to the chambers over the sensor reagents. The implantable sensor may be implanted into the dermis of a subject. One or more of the sensor reagents may exhibit a color change in response to the presence of a target analyte or reaction product thereof. The wavelengths of light reflected from the analysis regions may be detected and analyzed to determine a target analyte concentration. One or more portions of the sensor or components thereof may be configured to facilitate calibration of the sensor, correction of an optical signal obtained from the sensor by a reader device to accommodate variations in the surrounding tissues, and/or calculation of a representative value by a reader device. 1. An analyte sensor , comprising:a base having an upper surface and an opposite lower surface, a first end, and a second end;an analyte reagent system coupled to the base, wherein the analyte reagent system is configured to cause a shift in pH in response to a target analyte, and to exhibit a reversible color change in response to the shift in pH; andone or more membranes coupled to the base, the one or more membranes being permeable to a target analyte.2. The analyte sensor of claim 1 , wherein the analyte sensor has a total thickness of 50 μm or less.3. The analyte sensor of claim 1 , wherein the base comprises a polymer and TiO.4. The analyte sensor of claim 3 , wherein the polymer is polyimide.5. The analyte sensor of claim 1 , wherein the base material is a highly reflective material.6. The analyte sensor of claim 1 , wherein the analyte sensor is configured to be retained within the body of a subject.7. The analyte sensor of claim 1 , wherein the analyte sensor is configured to be ...

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22-08-2013 дата публикации

SPLITTABLE NEEDLE WITH FIBER PROBE

Номер: US20130217989A1
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

A needle comprises an elongated first shaft element with a C-shaped cross section and an elongated second shaft element with a C-shaped cross section. The first shaft element and the second shaft element are adapted to be detachably connected to each other. This is achieved by an overlap of respective end sections of the first and second shaft elements. Within the channel formed by the shaft elements, an optical probe may be accommodated from which the shaft elements may be removed by separating the two shaft elements from each other. 1. A needle comprisingan elongated first shaft element with a C-shaped cross section including a first middle section between two first end sections in a circumferential direction,an elongated second shaft element with a C-shaped cross section including a second middle section between two second end sections in a circumferential direction, wherein the first shaft element and the second shaft element are adapted to be detachably connected to each other, so that the first end sections overlap with the respective second end sections,an elongated probe body which is movably accommodatable in an inner space formed by the first and second shaft elements when connected to each other,wherein the second shaft element further includes an outward-projection between the second middle section and each of the second end sections, wherein each of the outward-projections forms a duct, and wherein, when the first and second shaft elements are connected to each other, the overlapping of the end sections of the first and second shaft elements is limited by the outward-projections.2110. The needle of claim 1 , wherein the first shaft element () further includes an inward-projection between the middle section and each of the end sections claim 1 , and wherein claim 1 , when the first and second shaft elements are connected to each other claim 1 , the overlapping of the end sections of the first and second shaft elements is limited by the inward-projections ...

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29-08-2013 дата публикации

METHOD FOR DETECTING BODY PARAMETERS

Номер: US20130225949A1
Автор: ROCHE MARTIN W.
Принадлежит:

A biometric sensor includes a prosthesis for at least one joint having one or more biometric transceivers. The one or more biometric transceivers are capable of transmitting at least one energy wave into a procedure area, quantitatively assessing a behavior of the at least one energy wave, and assessing particulate matter using the at least one energy wave. 1. A biometric sensor for detecting biometric parameters , comprising: transmitting at least one energy wave from the at least one biometric transceiver into a procedure area;', 'quantitatively assessing a behavior of the at least one energy wave; and', 'assessing particulate matter using the at least one energy wave., 'a prosthesis for at least one joint having at least one biometric transceiver, the at least one biometric transceiver2. The biometric sensor according to claim 1 , wherein the prosthesis further comprises a transmitter that transmits data relating to the particulate matter assessment to an external source for analysis by the external source to evaluate a biometric condition of the at least one joint.3. The biometric sensor according to claim 1 , wherein the at least one biometric transceiver is a set of biometric transceivers shaped to be implanted on the at least one joint.4. The biometric sensor according to claim 1 , wherein the at least one biometric transceiver is internally powered and claim 1 , thereby claim 1 , creates the at least one energy wave and quantitatively assesses the behavior of the at least one energy wave.5. The biometric sensor according to claim 4 , wherein the at least one energy wave is at least one of electromagnetic claim 4 , optical claim 4 , and infrared.6. The biometric sensor according to claim 4 , wherein the at least one biometric transceiver comprises a kinetically powered biometric transceiver.7. The biometric sensor according to claim 1 , wherein the at least one biometric transceiver measures a current status of at least one biometric parameter.8. The ...

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12-09-2013 дата публикации

Device and Method for Continuous Chemical Sensing

Номер: US20130237774A1
Принадлежит: THERASYN SENSORS, INC.

The present invention may be embodied as an ingestible device capable of sensing one or more chemical parameters. In use, the device can continuously determine the chemical concentrations within an alimentary canal tract. An embodiment of the device comprises a housing resistant to degradation by alimentary canal fluid, a light source, and image capture device. An analyte sensor is configured to obtain at least one measurement of a concentration of analyte in the fluid. The analyte sensor comprises a sensor substance in a sol-gel material so the sensor substance reversibly interacts with an analyte of interest. In addition, the analyte sensor is configured to generate a trigger signal for controlling the operation of subsystems in the device. 1. A device for monitoring an alimentary canal , comprising:a housing resistant to degradation by alimentary canal fluid;a first light source for illuminating a first field-of-view of an environment external to the housing;a first image capture device disposed within the housing, the first image capture device positioned to capture an image of at least a portion of the first field-of-view; and a) comprising a sensor substance in a sol-gel material such that the sensor substance reversibly interacts with an analyte of interest, the sensor substance configured to emit electromagnetic energy when the analyte of interest is in contact with the sensor substance and electromagnetic excitation energy is received by the sensor substance, and', 'b) configured to be in contact with the alimentary canal fluid;, 'an analyte sensor configured to obtain at least one measurement of a concentration of analyte in the alimentary canal fluid, the analyte sensorwherein the analyte sensor is configured to generate a trigger signal for controlling the operation of the image capture device.2. The device of claim 1 , wherein the analyte sensor is configured to continuously measure a concentration of analyte in the alimentary fluid.3. The device of ...

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19-09-2013 дата публикации

ENDOSCOPE SYSTEM, PROCESSOR DEVICE THEREOF, AND EXPOSURE CONTROL METHOD

Номер: US20130245410A1
Автор: SAITO Takaaki
Принадлежит: FUJIFILM Corporation

In a special observation mode, an oxygen saturation frame period, a normal frame period, and a vessel pattern frame period are repeatedly performed. A brightness detector detects the brightness of a latest frame image of an oxygen saturation video image, being a key video image. The intensity of light to be applied in the next oxygen saturation frame period is determined from the detected brightness. From the determined light intensity and a light intensity ratio among frames, the intensity of light to be applied in the next normal frame period and the next vessel pattern frame period is calculated. The exposure time of the next oxygen saturation frame period is determined from the detected brightness. From the determined exposure time and an exposure time ratio among frames, the exposure time of the next normal frame period and the next vessel pattern frame period is determined. 1. An endoscope system comprising:a lighting section for sequentially and repeatedly applying a plurality of types of illumination light having different wavelength bands to an internal body portion;an image sensor for sequentially capturing reflected light from said internal body portion, and producing a plurality of types of frame images corresponding to said types of illumination light;a video image processing unit for producing a plurality of types of video images based on said plurality of types of frame images;a brightness detector for detecting brightness of a specific type of frame image out of said plurality of types of frame images;an exposure condition determiner for determining based on said detected brightness, exposure conditions of said plurality of types of frame images to be obtained; andan exposure controller for regulating exposure of said image sensor in accordance with said determined exposure conditions.2. The endoscope system according to claim 1 , wherein said exposure condition determiner includes:a memory for storing correlation in said exposure conditions among ...

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19-09-2013 дата публикации

ENDOSCOPE SYSTEM, PROCESSOR DEVICE THEREOF, AND EXPOSURE CONTROL METHOD

Номер: US20130245411A1
Автор: SAITO Takaaki
Принадлежит: FUJIFILM Corporation

When an endoscope system is put into a special mode, first and second frame periods for performing imaging under first and second measurement light to measure an oxygen saturation level, a third frame period for performing imaging under normal light, and a fourth frame period for performing imaging under vessel detection light to detect blood vessels in specific depth are repeated. An oxygen saturation image, a normal image, and a vessel pattern image are produced and displayed in a tiled manner on a monitor in the form of moving images. When a freeze button is pressed during display of the moving images, the light intensity and exposure time to be used in the first to fourth frame periods of a still image recording process are calculated using an image that is captured immediately before pressing the freeze button. Still images are obtained with the calculated light intensity and exposure time. 1. An endoscope system comprising:a lighting section for producing a plurality of types of illumination light having different wavelength bands sequentially in accordance with a plurality of types of frame periods, and applying said illumination light to an internal body portion;an image pickup section having an image sensor for imaging said internal body portion, said image pickup section sequentially capturing a plurality of types of frame images;a moving image processing section for producing a plurality of types of moving images, corresponding to said plurality of types of illumination light, from said plurality of types of frame images sequentially captured by said image pickup section;a monitor for displaying said plurality of types of moving images;an exposure condition determining section for determining an exposure condition of each of a plurality of types of still images to be recorded in a still image recording process, in accordance with said types of frame periods, with use of one of said frame images captured immediately before or immediately after a start ...

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31-10-2013 дата публикации

Measurement devices and methods for measuring analyte concentration incorporating temperature and ph correction

Номер: US20130287631A1
Принадлежит: GluMetrics Inc

Disclosed herein are methods of estimating an analyte concentration which include generating a signal indicative of the analyte concentration, generating a signal indicative of a temperature, generating a signal indicative of a pH, and transforming the signal indicative of the analyte concentration utilizing an equation of the form of a modified Michaelis-Menten equation depending on Michaelis-Menten parameters, wherein values of the Michaelis-Menten parameters are set based upon data which includes temperature and pH calibration parameters, the signal indicative of a temperature, and the signal indicative of a pH. Also disclosed herein are measurement devices which employ the aforementioned methods.

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31-10-2013 дата публикации

IMPLANTABLE OXIMETRIC MEASUREMENT APPARATUS AND METHOD OF USE

Номер: US20130289372A1
Автор: Imran Mir
Принадлежит: InCube Labs, LLC

Embodiments provide an apparatus, system, kit and method for in vivo measurement of blood oxygen saturation (BAS). One embodiment provides an implantable apparatus for measuring BAS comprising a housing, emitter, detector, processor and power source. The housing is configured to be injected through a tissue penetrating device into a target tissue site (TS). The emitter is configured to emit light into the TS to measure BAS, the emitted light having at least one wavelength (LOW) whose absorbance is related to a BAS. The detector is configured to receive light reflected from the TS, detect light at the LOW and generate a detector output signal (DOS) responsive to an intensity of the detected light. The processor is operably coupled to the detector and emitter to send signals to the emitter to emit light and receive the DOS and includes logic for calculating a BAS and generate a signal encoding the BAS. 1. An implantable apparatus for measuring blood oxygen saturation levels in a patient , the apparatus comprising:a housing having a wall and an interior volume, at least a portion of the housing wall comprising an optically transparent material, the housing having a size, shape and column strength to be injected through a hollow tissue penetrating device into a target tissue site beneath the skin of the patient by the application of a force on the housing;an optical emitter positioned within the housing, the emitter arranged and configured to emit light through the housing wall and into the tissue site to measure a blood oxygen saturation within the tissue site, the emitted light having at least one wavelength whose absorbance is related to a level of blood oxygen saturation;an optical detector positioned within the housing and arranged to receive light reflected from the tissue site, the optical detector configured to detect light at the at least one wavelength and generate a detector output signal responsive to an intensity of the detected light;a processor positioned ...

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31-10-2013 дата публикации

ENDOSCOPIC DIAGNOSIS SYSTEM

Номер: US20130289373A1
Автор: YAMAMOTO Hiroaki
Принадлежит:

The endoscopic diagnosis system comprises an image sensor that receives reflected light from a subject illuminated with white light and first narrowband light to acquire a narrowband light image for blood vessel observation in a narrowband light observation mode, and receives reflected light from the subject illuminated with second narrowband light to acquire a narrowband light image for oxygen saturation level observation in an oxygen saturation level observation mode; a controller that controls such that the narrowband light images for blood vessel observation and oxygen saturation level observation are acquired alternately; an image processor that generates an oxygen saturation level image based on the narrowband light images for blood vessel observation and oxygen saturation level observation; and a display unit that simultaneously displays the narrowband light image for blood vessel observation and the oxygen saturation level image. 1. An endoscopic diagnosis system , comprising:a white light source for emitting white light;a first narrowband light source for emitting first narrowband light having a given wavelength range;a second narrowband light source for emitting second narrowband light having a wavelength range different from that of the first narrowband light;a light source controller for controlling on-off actions and light amounts of the white light source, the first narrowband light source and the second narrowband light source, respectively;an image sensor for receiving reflected light from a subject illuminated with the white light to acquire a normal light image in a normal light observation mode, receiving reflected light from the subject illuminated with the white light and the first narrowband light emitted at a first emission ratio toward the subject to acquire a narrowband light image for blood vessel observation in a narrowband light observation mode, and receiving reflected light from the subject illuminated with the second narrowband light ...

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14-11-2013 дата публикации

METHOD OF USING THE DETECTION OF EARLY INCREASE IN MICROVASCULAR BLOOD CONTENT TO DISTINGUISH BETWEEN ADENOMATOUS AND HYPERPLASTIC POLYPS

Номер: US20130303861A1
Принадлежит:

The present invention, in one aspect, relates to a method for distinguishing between possible adenomatous and hyperplastic polyps using what :is referred to as “Early Increase in microvascular Blood Supply” (EIBS) that exists in tissues that are close to, but are not themselves, the abnormal tissue. 1. A method of providing an indication that a living polyp within a human body is one of a possible adenomatous polyp and a hyperplastic polyp comprising the steps of:inserting an illumination probe such that a light source within the illumination probe is disposed in a location that is at a surface of a colon and contains the polyp;illuminating, at the location, tissue of the colon and microvasculature therein with light from the light source that is emitted from the probe around the polyp;detecting interacted light that results from the step of illuminating the tissue as detected data, wherein the interacted light is obtained substantially from the light that then interacts with blood in the microvasculature that is within the tissue of the colon;estimating a least one of blood content and blood flow in the microvasculature using the detected data; andidentifying that the polyp is one of the possible adenomatous polyp and the hyperplastic polyp using the at least one of estimated blood content and blood flow, the step of obtaining including the step of determining whether there exists an increase in the at least one of estimated blood content and blood flow in the mucosal microvasculature.2. The method according to further including the step of removing the polyp if the polyp is indicated as being the possible adenomatous polyp claim 1 , while not removing the polyp if the polyp is indicated as being the hyperplastic polyp.3. The method according to further including the step of:visually examining the polyp with light if the polyp is indicated as being the possible adenomatous polyp to determineremoving the polyp if the poly is indicated as being the possible ...

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14-11-2013 дата публикации

Systems, methods, and apparatuses for monitoring end stage renal disease

Номер: US20130303865A1
Принадлежит: Biometric Holdings Inc

An end stage renal disease (ESRD) monitoring system may include an implantable sensor and a reader device with an optical sensor. The implantable sensor may be configured to detect a group of analytes relevant to ESRD, such as glucose, creatinine, urea, and potassium. The implantable sensor may be implanted into the dermis of an animal, and may exhibit color changes in response to the presence of the target analytes or reaction product(s) thereof. The reader device may be configured to capture an image of the implanted sensor and to determine the concentration of the target analytes based at least in part on the image. The reader device may be a personal electronic device such as a cell phone, PDA, or personal computer.

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05-12-2013 дата публикации

CONTINUOUS MEASUREMENT OF TOTAL HEMOGLOBIN

Номер: US20130324815A1
Принадлежит: EDWARDS LIFESCIENCES CORPORATION

The present application relates to continuous measurement of total hemoglobin (tHb) in whole blood. In one embodiment, different wavelengths are used for normalization of the spectral intensity and calculation of the total hemoglobin. In particular, for normalization, a first wavelength is used wherein the wavelength is substantially insensitive to changes in levels of hemoglobin and oxygen saturation. For calculation of the total hemoglobin, a second wavelength is used. The second wavelength is sensitive to changes in levels of hemoglobin, but substantially insensitive to changes in levels of oxygen saturation. In another embodiment, a continuous measurement can be made using two wavelengths that are both sensitive to oxygen saturation, but they both are equally sensitive. In other words, the normalized intensities associated with the two wavelengths change equal amounts with equal changes in oxygen saturation levels. 1. A method of determining total hemoglobin of blood , comprising:transmitting light of multiple wavelengths into the blood using a catheter;receiving the light after interacting with the blood;normalizing a spectral intensity of wavelengths of the received transmitted light using a first predetermined wavelength, wherein an intensity at the first predetermined wavelength is substantially insensitive to changes in levels of hemoglobin and oxygen saturation;calculating the total hemoglobin of the blood using the normalized spectral intensity at a second predetermined wavelength, wherein the normalized intensity at the second predetermined wavelength is sensitive to changes in levels of hemoglobin, but substantially insensitive to changes in levels of oxygen saturation.2. The method of claim 1 , wherein the catheter includes a transmit optical fiber and a receive optical fiber.3. The method of claim 1 , wherein measuring the intensity includes receiving at least one light wavelength from a receive optical fiber and using a photodetector to capture ...

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05-12-2013 дата публикации

ANGLE OF INCIDENCE SELECTIVE BAND PASS FILTER FOR IMPLANTABLE CHEMICAL SENSOR

Номер: US20130324819A1
Автор: Colvin, JR. Arthur E.
Принадлежит: Senseonics, Incorporated

Apparatuses and methods for limiting the angle of incidence (AOI) of light reaching a dichroic filter. The apparatus may include an AOI filter element and the dichroic filter. The apparatus may be a sensor and may include a photodetector. The dichroic filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass. Physical limitations of the dichroic filter may preclude the dichroic filter from preventing high AOI light having a wavelength outside a band pass region from reaching the photodetector. The AOI filter element may be configured to prevent light having a high AOI from reaching the dichroic band pass filter and to propagate light having a low AOI to the dichroic band pass filter. The AOI filter element may be a fiber optic bundle comprising a plurality of optical fibers. 1. A sensor comprising:a photodetector configured to convert received light into current indicative of the intensity of the received light;a dichroic band pass filter configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector; andan angle of incidence filter element comprising a receiving surface and configured to prevent light having an angle of incidence relative to an axis perpendicular to the receiving surface greater than a threshold angle from reaching the dichroic band pass filter and to propagate light having an angle of incidence relative to the axis perpendicular to the receiving surface less than the threshold angle to the dichroic band pass filter;wherein the angle of incidence filter element is a fiber optic bundle comprising a plurality of optical fibers.2. The sensor of claim 1 , wherein each of the plurality of optical fibers comprises:a core having a first refractive index; anda clad having a second refractive index that is ...

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12-12-2013 дата публикации

PURIFICATION OF GLUCOSE CONCENTRATION SIGNAL IN AN IMPLANTABLE FLUORESCENCE BASED GLUCOSE SENSOR

Номер: US20130331667A1
Принадлежит: Senseonics, Incorporated

Methods, sensors, and systems for determining a concentration of glucose in a medium of a living animal are disclosed. Determining the glucose concentration may involve emitting excitation light from a light source to indicator molecules, generating a raw signal indicative of the amount of light received by a photodetector, purifying and normalizing the raw signal, and converting the normalized signal to a glucose concentration. The purification may involve removing noise (e.g., offset and/or distortion) from the raw signal. The purification and normalization may involve tracking the cumulative emission time that the light source has emitted the excitation light and tracking the implant time that has elapsed since the optical sensor was implanted. The purification and normalization may involve measuring the temperature of the sensor. The purification, normalization, and conversion may involve using parameters determined during manufacturing, in vitro testing, and/or in vivo testing. 1. A method of determining a concentration of glucose in a medium of a living animal using an optical sensor implanted in the living animal , the method comprising:emitting, using a light source of the optical sensor, excitation light to indicator molecules of the optical sensor, the indicator molecules having an optical characteristic responsive to the concentration of glucose;generating, using a photodetector of the optical sensor, a raw signal indicative of the amount of light received by the photodetector, wherein the light received by the photodetector includes glucose-modulated light emitted by the indicator molecules and at least one of excitation light emitted by the light source and non-glucose modulated light emitted by the indicator molecules;tracking, using circuitry of the optical sensor, the cumulative emission time that the light source has emitted the excitation light;tracking, using circuitry of the optical sensor, the implant time that has elapsed since the optical ...

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26-12-2013 дата публикации

GLUCOSE SENSOR

Номер: US20130344619A1
Принадлежит: LIGHTSHIP MEDICAL LIMITED

A method of quantifying the amount of glucose in a sample is provided herein that may further comprise an interferent such as mannitol. At least two measurements are obtained using measurement methods that differ in their sensitivity to the amount of interferent in the sample, thus enabling the results to be compared to determine whether any interferent is present in the sample. A glucose sensor for carrying out a method described herein is also provided 1. A glucose sensor for quantifying the amount of glucose in a sample that may further comprise an interferent , the sensor comprising: [{'sub': G1', 'M1, 'a first indicator system comprising a first receptor for binding to glucose and a first fluorophore associated with the first receptor, wherein said first receptor has an association constant Kwith glucose and an association constant Kwith said interferent, and'}, {'sub': G2', 'M2', 'G2', 'M2', 'G1', 'M1, 'a second indicator system comprising a second receptor for binding to glucose and a second fluorophore associated with the second receptor, wherein said second receptor has an association constant Kwith glucose and an association constant Kwith said interferent, and wherein K/Kis different from K/K; and'}], 'a sensing region comprisingan optical waveguide for directing light onto the sensing region.2. The glucose sensor according to claim 1 , wherein said first fluorophore and said second fluorophore have peak emission wavelengths that differ by at least 5 nm.3. The glucose sensor according to claim 1 , wherein [K/K]/[K/K] is greater than 2 or less than 0.5.4. The glucose sensor according claim 1 , wherein said first receptor and said second receptor are boronic acid receptors.5. The glucose sensor according to claim 4 , wherein said first receptor contains two boronic acid groups and said second receptor contains one boronic acid group.6. The glucose sensor according claim claim 4 , wherein said interferent is selected from: (a) an interferent that comprises a ...

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02-01-2014 дата публикации

SYSTEM FOR THE SELF-MONITORING AND REGULATION OF BLOOD GLUCOSE

Номер: US20140005499A1
Принадлежит: University of Newcastle Upon Tyne

The present invention relates to a self monitoring device for attachment to the body, which incorporates real-time and correlated measurement of body movement and physiological analytes of metabolism (e.g. glucose) that can be modulated by physical activity. The system enables real time and personalised modulation of the selected physiological analyte(s) through appropriately selected cued activities and other evidence based clinical guidance dependent on previous and current analyte levels correlated with previous and current patterns of movement. The system also allows for personalisation of the outputs with regular calibration to the user. 1. A system for the regulation of physiological analytes , the system comprising:a movement sensor;a physiological analyte sensor;an output device for providing a signal to a subject;a data processing module;wherein the movement sensor is adapted to take and record continuous or regular movement readings to determine movement of a subject;wherein the physiological analyte sensor is adapted to take and record continuous or regular readings of levels of one or more physiological analytes present in the subject;wherein the data processing module compares readings with recorded historical readings to determine a rate and a direction of change of the levels of one or more physiological analytes and associated levels of physical activity; andwherein the output device is adapted to provide a signal to the subject if the levels of one or more of the physiological analytes fit a certain profile.2. The system as in wherein multiple signals are available for selection for provision to the user and the signal provided to the user is selected depending on at least one of the rate and the direction of change of analyte levels.3. The system as in wherein the output device is adapted to provide a signal to the subject if the levels of at least one of the physiological analytes fall out with a pre-determined range.4. The system as in wherein ...

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02-01-2014 дата публикации

USE OF SENSOR REDUNDANCY TO DETECT SENSOR FAILURES

Номер: US20140005505A1
Принадлежит: DexCom, Inc.

Devices, systems, and methods for providing more accurate and reliable sensor data and for detecting sensor failures. Two or more electrodes can be used to generate data, and the data can be subsequently compared by a processing module. Alternatively, one sensor can be used, and the data processed by two parallel algorithms to provide redundancy. Sensor performance, including sensor failures, can be identified. The user or system can then respond appropriately to the information related to sensor performance or failure. 1. A method for detecting a sensor failure in a continuous analyte monitoring system implanted in a host , the method comprising:receiving first sensor data from a first electrode implanted in the host, wherein the first sensor data are indicative of a property corresponding to the first electrode;receiving second sensor data from a second electrode implanted in the host, wherein the second sensor data are indicative of the property corresponding to the second electrode, the first electrode and the second electrode having substantially same characteristics;comparing, using a processor module, the property corresponding to the first electrode with the property corresponding to the second electrode; andidentifying a failure in at least one of the first electrode or the second electrode when a property magnitude of the first electrode is different from a property magnitude of the second electrode by a predetermined value.2. The method of claim 1 , wherein the property is sensor sensitivity to an analyte.3. The method of claim 1 , wherein the property is baseline.4. The method of claim 1 , wherein the first electrode is located substantially adjacent to the second electrode.5. The method of claim 1 , wherein the first electrode and the second electrode are separated by a distance of less than about 1 mm at a closest proximity.6. The method of claim 1 , wherein the first electrode and the second electrode are separated by a distance of less than about 0.5 ...

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09-01-2014 дата публикации

ENDOSCOPE SYSTEM, PROCESSOR DEVICE THEREOF, AND METHOD FOR CONTROLLING ENDOSCOPE SYSTEM

Номер: US20140012113A1
Принадлежит: FUJIFILM Corporation

In a special mode for imaging an oxygen saturation level of blood, an internal body portion is imaged under irradiation with special illumination light. A light amount evaluation section judges based on an obtained image whether or not a reflected light amount of the special illumination light is adequate for calculating the oxygen saturation level. When the reflected light amount is judged to be adequate, a normal image sensor captures an image under irradiation with the special illumination light. When the reflected light amount is judged to be low, a high-sensitivity image sensor is used. In using the high-sensitivity image sensor, a binning process is applied to an image signal in accordance with the reflected light amount of the special illumination light, in order to further sensitize the image signal. 1. An endoscope system comprising:a lighting section for applying special illumination light to a body portion, said special illumination light having a wavelength at which oxyhemoglobin and deoxyhemoglobin have different absorption coefficients;an imaging section for capturing said special illumination light reflected from said body portion and producing a special signal;a light amount evaluation section for measuring a reflected light amount of said special illumination light based on said special signal, and judging whether or not said reflected light amount is low;a sensitizing section for sensitizing said special signal when said reflected light amount is judged to be low; anda special image processing section for measuring an oxygen saturation level of blood based on said special signal that is sensitized or not sensitized in accordance with a judgment result of said light amount evaluation section, and producing a special image depicting said oxygen saturation level.2. The endoscope system according to claim 1 , wherein said imaging section includes first and second image sensors having different sensitivities claim 1 , said second image sensor having ...

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16-01-2014 дата публикации

PURIFICATION OF GLUCOSE CONCENTRATION SIGNAL IN AN IMPLANTABLE FLUORESCENCE BASED GLUCOSE SENSOR

Номер: US20140018644A1
Принадлежит: Senseonics, Incorporated

Methods, sensors, and systems for determining a concentration of glucose in a medium of a living animal are disclosed. Determining the glucose concentration may involve emitting excitation light from a light source to indicator molecules, generating a raw signal indicative of the amount of light received by a photodetector, purifying and normalizing the raw signal, and converting the normalized signal to a glucose concentration. The purification may involve removing noise (e.g., offset and/or distortion) from the raw signal. The purification and normalization may involve tracking the cumulative emission time that the light source has emitted the excitation light and tracking the implant time that has elapsed since the optical sensor was implanted. The purification and normalization may involve measuring the temperature of the sensor. The purification, normalization, and conversion may involve using parameters determined during manufacturing, in vitro testing, and/or in vivo testing. 1. A method of determining a concentration of glucose in a medium of a living animal using an optical sensor implanted in the living animal and a sensor reader external to the living animal , the method comprising:emitting, using a light source of the optical sensor, excitation light to indicator molecules of the optical sensor, the indicator molecules having an optical characteristic responsive to the concentration of glucose;generating, using a photodetector of the optical sensor, a raw signal indicative of the amount of light received by the photodetector, wherein the light received by the photodetector includes glucose-modulated light emitted by the indicator molecules and at least one of excitation light emitted by the light source and non-glucose modulated light emitted by the indicator molecules;conveying, using an inductive element of the optical sensor, the raw signal;receiving, using an inductive element of the sensor reader, the conveyed raw signal;tracking, using circuitry of ...

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27-02-2014 дата публикации

SENSOR FOR PERCUTANEOUS INTRAVASCULAR DEPLOYMENT WITHOUT AN INDWELLING CANNULA

Номер: US20140058223A1
Принадлежит: Glumetrics, Inc.

The present invention relates to a sensor for percutaneous insertion and intravascular residence without an indwelling cannula. In preferred embodiments, a glucose sensor is inserted into a blood vessel using a removable cannula. After the cannula is removed, the glucose sensor remains within the blood vessel by itself and forms a seal with the patient's tissue. 135-. (canceled)36. A method for introducing an analyte sensor into a patient , comprising:providing an introducer assembly comprising a piercing member associated with a removable cannula, wherein a piercing tip of the piercing member extends distally beyond the removable cannula;inserting the introducer assembly into the patient;retracting the piercing member from the removable cannula, while leaving the removable cannula in the patient;providing an optical analyte sensor comprising a fluorescent indicator system disposed along a distal end region and adapted to generate an optical signal related to the patient's analyte level in response to light, an elongate optical fiber, and an optical coupling disposed along a proximal end region;inserting the optical analyte sensor through the removable cannula and into the patient;retracting the removable cannula from the patient, while leaving the sensor in the patient; andremoving the removable cannula from the sensor.37. The method of claim 36 , wherein the optical analyte sensor comprises an anti-thrombogenic coating or surface treatment.38. The method of claim 36 , wherein the optical analyte sensor has a surface comprising polytetrafluoroethylene.39. The method of claim 36 , wherein removing the removable cannula comprises at least one of splitting the removable cannula claim 36 , peeling the removable cannula claim 36 , and cutting the removable cannula.40. The method of claim 39 , wherein removing the removable cannula comprises squeezing a first wing and a second wing together claim 39 , wherein the first wing and the second wing are disposed opposite each ...

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27-02-2014 дата публикации

OPTICAL DETERMINATION OF PH AND GLUCOSE

Номер: US20140058225A1
Принадлежит: Glumetrics, Inc.

Embodiments of the present invention are directed to an optical sensor capable of measuring two analytes simultaneously with a single indicator system. In preferred embodiments, the sensor comprises a fluorescent dye having acid and base forms that facilitate ratiometric pH sensing, wherein the dye is further associated with a glucose binding moiety and configured to generate a signal that varies in intensity with the concentration of glucose. 19.-. (canceled)10. A method for simultaneously determining pH and glucose concentration using a single fluorescent dye , comprising: [ a fluorescent dye that exists in first and second different forms depending on pH, wherein the different forms can be distinguished based on their respective first and second emissions; and', 'a binding moiety that binds glucose, wherein the binding moiety is operably coupled to the fluorescent dye, and wherein binding of glucose by the binding moiety causes an optical change in the apparent concentration of the fluorescent dye related to the concentration of glucose;', 'wherein a ratio of the first and second emissions is independent of the concentration of glucose;, 'an optical sensor, comprising an indicator system, comprising, 'at least one light source;', 'at least one detector configured to detect both the first and second emissions; and', 'a controller configured to monitor signals from the at least one detector and determine the ratio;, 'providing a system comprisinginserting the optical sensor into a tissue comprising interstitial fluid;irradiating the sensor using the at least one light source;detecting the first emission corresponding to the first form of the fluorescent dye;detecting the second emission corresponding to the second form of the fluorescent dye;ratiometrically determining the pH of the interstitial fluid using the controller; anddetermining the glucose concentration in the interstitial fluid corrected for pH using the controller.11. The method of claim 10 , further ...

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03-01-2019 дата публикации

Fiber Optic Flow And Oxygenation Monitoring Using Diffuse Correlation And Reflectance

Номер: US20190000321A1
Принадлежит:

Disclosed are fiber optic devices and related methods that allow for measurement of blood flow and oxygenation in real time. These devices have particular application to the spinal cord. Such devices have applicability in, for example, the care of military members sustaining combatant and noncombatant spinal injuries, as well as to civilians. The devices also have utility in the acute and subacute management of spine trauma, enhancing the efficacy of interventions aimed at the prevention of secondary ischemic injury, and ultimately improving neurologic outcome. 1. A device , comprising:a first illuminator fiber having a distal end; anda first detector fiber having a distal end located at a first distance from the distal end of the first illuminator fiber,the first illuminator fiber being in optical communication with an illumination source, andthe first detector fiber being capable of in optical communication with a first illumination detector.2. The device of claim 1 , further comprising a computer processor in communication with the first illumination detector claim 1 , the computer processor being adapted to estimate claim 1 , based on illumination received by the first illumination detector claim 1 , blood oxygenation claim 1 , oxy-hemoglobin claim 1 , deoxy-hemoglobin claim 1 , blood flow claim 1 , oxygen metabolism claim 1 , water content claim 1 , lipid presence claim 1 , tracer presence claim 1 , or any combination thereof.3. The device of claim 1 , further comprising a second detector fiber claim 1 , the second detector fiber having a distal end located at a second distance from the distal end of the first illuminator fiber.4. The device of claim 3 , wherein the second detector fiber is in communication with the first illumination detector.5. The device of claim 1 , wherein the first distance is in the range of from about 0.01 to about 20 cm.6. The device of claim 3 , wherein the first and second distances differ from one another.7. The device of claim 6 , ...

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02-01-2020 дата публикации

IN-BODY BACKSCATTER COMMUNICATION AND LOCALIZATION

Номер: US20200000366A1
Принадлежит:

A backscatter approach is particularly customized for deep tissue devices, which do not require active signal transmission for localization of or data communication from the devices. The design overcomes interference from the body surface, and localizes the in-body backscatter devices even though the signal travels along non-straight paths. Data communication for the in-body device is also available using the approach. 1. A localization method comprising:receiving, at each antenna of a plurality of antennas, an emitted signal from a passive device located in a subject's body, each antenna of the plurality of antennas providing a respective received signal of a plurality of received signals, wherein the emitted signal includes a first set of frequency components and is caused by subjecting the passive device to a transmitted signal including a second set of frequency components not included in the first set of frequency components; andprocessing the plurality of received signals to determine a location of the passive device, the processing being based at least in part on the effects of different propagation speeds of the emitted signal in one or more layers of tissue through which the emitted signal passes to reach the plurality of antennas.2. The method of wherein the passive device includes circuitry for forming the first set of frequency components from the second set of frequency components.3. The method of wherein the circuitry is non-linear circuitry.4. The method of wherein the circuitry includes a diode.5. The method of wherein the transmitted signal includes a first frequency component with a first frequency and a second frequency component with a second frequency and the first set of frequency components includes a mixture of the first frequency and the second frequency.6. The method of further comprising processing the received signals to remove components at frequencies of the second set of frequency components.7. The method of wherein processing the ...

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02-01-2020 дата публикации

Near-ir glucose sensors

Номер: US20200000383A1
Принадлежит: Profusa Inc

Glucose-sensing luminescent dyes, polymers, and sensors are provided. Additionally, systems including the sensors and methods of using these sensors and systems are provided.

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05-01-2017 дата публикации

Apparatus, systems and methods for characterizing, imaging and/or modifying an object

Номер: US20170000353A1
Принадлежит: General Hospital Corp

Method and apparatus can be provided according to an exemplary embodiment of the present disclosure. For example, with at least one first section of an optical enclosure, it is possible to provide at least one first electro-magnetic radiation. In addition, with at least one second section provided within the enclosure, it is possible to cause, upon impact by the first radiation, a redirection of the first radiation to become at least one second radiation. Further, with at least one third section of the optical enclosure, it is possible to cause at least one second radiation to be provided to a tissue. For example, the redirection of the first radiation causes, at least approximately, a uniform optical illumination on of a surface of the tissue.

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06-01-2022 дата публикации

METHODS AND SYSTEMS FOR PHOTODYNAMIC THERAPY CALCULATIONS

Номер: US20220001193A1
Принадлежит:

Methods and systems are described for implementing a photodynamic therapy. An example method may comprise determining, during photodynamic therapy and using a plurality of optical probes spatially distributed within a patient, data indicative of one or more of a photodynamic therapy dosage, a fluence rate of a photodynamic therapy treatment light, or a reactive oxygen species concentration associated with corresponding locations of the plurality of optical probes. The example method may comprise changing, based on the data, one or more treatment parameters associated with providing a photodynamic therapy. 1. A method , comprising:determining, during photodynamic therapy and using a plurality of optical probes spatially distributed within a patient, data indicative of a reactive oxygen species concentration associated with corresponding locations of the plurality of optical probes; andchanging, based on the data, one or more treatment parameters associated with providing a photodynamic therapy.2. The method of claim 1 , further comprises determining claim 1 , during the photodynamic therapy and using the plurality of optical probes spatially distributed within the patient claim 1 , one or more of data indicative of a photodynamic therapy dosage or data indicative of a fluence rate of a photodynamic therapy treatment light.3. The method of claim 2 , wherein one or more of the data indicative of the photodynamic therapy dosage claim 2 , the data indicative of the fluence rate of the photodynamic therapy treatment light claim 2 , or the data indicative of a reactive oxygen species concentration are determined in parallel.4. The method of claim 1 , wherein the one or more treatment parameters comprise one or more of an intensity of the photodynamic therapy treatment light claim 1 , a location of the photodynamic therapy treatment light claim 1 , or a duration of photodynamic therapy treatment light.5. The method of claim 1 , further comprising:causing, during the ...

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02-01-2020 дата публикации

Layered sensors and methods of using

Номер: US20200000940A1
Принадлежит: Profusa Inc

Layered implantable sensors are described herein. Layered sensors described herein may include one or more analyte sensing populations. The one or more analyte sensing populations may detect different analytes, or different concentrations of the same analyte, for example. The layered sensors may include a reference population. The reference population may, or may not, be analyte sensing. As described herein, the first sensing population may be separated from a second sensing population (and/or a reference population) by a passive layer.

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12-01-2017 дата публикации

Fluorescence sensor

Номер: US20170007163A1
Принадлежит: Terumo Corp

A light guide unit of a fluorescence sensor is disclosed, which includes at least an optical-waveguide film in which one or more optical waveguides are formed. Each of these films includes a plurality of optical channels that output excitation light (E) or input fluorescence (F). All the optical channels are covered with a fluorescence unit.

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14-01-2016 дата публикации

Systems and methods for measuring fetal cerebral oxygenation

Номер: US20160007895A1
Принадлежит: University of Texas System

Optoacoustic diagnostic systems, devices, and methods are described. A system may comprise a console unit and a handheld probe. The console unit comprises a controller, a processor, a photodiode array, an acoustic processing subsystem, and a cooling subsystem. The probe directs light signals from the photodiode array to patient tissue. The light signals each have different wavelengths selected based on the physiological parameter of interest. The probe further comprises an acoustic transducer that receives acoustic signals generated in response to the directed light signals. The probe may comprise a finger-held working end that can be directed to the skull of a fetus within the uterus during labor. The probe can then accurately determine blood oxygenation of the fetus to determine if a caesarian section is necessary.

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14-01-2021 дата публикации

Optical probe for cervical examination

Номер: US20210007596A1
Принадлежит: Biop Medical Ltd

A system for imaging and examination of a cervix, comprising a control module connectable with a changeable head configured to image the cervix and collect a tissue biopsy, the head selected from a group consisting of a digital colposcope module, a transvaginal optical probe module and an endo-cervical endoscope module. The system may additionally comprise light source(s) to illuminate cervix tissue; sensing device(s) to generate signal(s) from light and/or to acquire image(s) of a portion of a cervix; and processor(s) in communication with the sensing device(s). The system is configured to: (i) analyze the signal(s); (ii) detect the size of the cervix; (iii) determine parameters defining properties of the cervix; (iv) determine and distinguish normal tissue from abnormal tissue within the cervix; (v) determine the location of area(s) of abnormal tissue in the cervix; and (vi) generate a panoramic view of the cervix.

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14-01-2021 дата публикации

System for collecting and utilizing health data

Номер: US20210007643A1
Принадлежит: MENICON CO., LTD.

A system for collecting and utilizing health data can include collecting data relative to a patient's health and aggregating the data with other sources of data to define a database. The patient data can be collected using an electronic device, such as a smart contact lens or smart contact lens container. The data within the database can be manipulated, organized, or otherwise processed to determine trends, relationships, and other characteristics of the database. The characteristics of the database can be correlated to predict a health condition of the patient, generate a healthcare recommendation, or a combination thereof.

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14-01-2021 дата публикации

METHOD AND SYSTEM FOR DETECTING CONTACT BETWEEN AN OPTICAL PROBE AND TISSUE AND AUTOMATING TISSUE MEASUREMENT

Номер: US20210007673A1
Принадлежит:

Methods and apparatus initiate a procedure performed by a probe on tissue. A signal is obtained from the probe, the signal varying with changes in a proximity of the probe to the tissue. The obtained signal is analyzed by a controller to determine whether the probe is within a predetermined distance of the tissue. The controller initiates the procedure when it is determined that the probe is within the predetermined distance of the tissue. The obtaining and analyzing may be repeated until the probe is determined to be within the predetermined distance of the tissue. The analyzing may include comparing the obtained signal to a predetermined threshold. 1. A method of initiating a procedure performed by a probe on tissue , the method comprising:(a) obtaining a signal from the probe, the signal varying with changes in a proximity of the probe to the tissue;(b) analyzing the obtained signal by a controller to determine whether the probe is within a predetermined distance of the tissue; and(c) the controller initiating the procedure when it is determined that the probe is within the predetermined distance of the tissue.2. The method according to claim 1 , wherein steps (a) and (b) are repeated until the probe is determined to be within the predetermined distance of the tissue.3. The method according to claim 1 , wherein step (b) includes comparing the obtained signal to a predetermined threshold.4. The method according to claim 3 , wherein the probe is determined to be in close proximity of the tissue when a value of the obtained signal is greater than the predetermined threshold.5. The method according to claim 1 , wherein the probe includes a receiver that measures a physical property to output the obtained signal.6. The method according to claim 5 , wherein the receiver also is used to perform the procedure.7. The method according to claim 6 , wherein the procedure is a diagnostic procedure.8. The method according to claim 5 , wherein the receiver is an optical ...

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10-01-2019 дата публикации

IMAGE PROCESSING APPARATUS, ENDOSCOPE SYSTEM, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM

Номер: US20190008362A1
Автор: KAMON Shumpei
Принадлежит: FUJIFILM Corporation

It is an object of the present invention to provide an image processing apparatus, an endoscope system, an image processing method, an image processing program, and a recording medium capable of accurately estimating blood vessel information. An image processing apparatus according to an aspect of the present invention includes: an image acquisition unit that acquires an image of a living body; a blood vessel index value calculation unit that calculates a blood vessel index value of the living body from the acquired image; a blood vessel density calculation unit that calculates a blood vessel density of the living body from the acquired image; a blood vessel index value correction unit that corrects the calculated blood vessel index value according to the calculated blood vessel density; and a blood vessel information estimation unit that estimates blood vessel information of the living body based on the corrected blood vessel index value. 1. An image processing apparatus , comprising:an image acquisition unit that acquires an image of a living body;a blood vessel index value calculation unit that calculates a blood vessel index value of the living body from the acquired image;a blood vessel density calculation unit that calculates a blood vessel density of the living body from the acquired image;a blood vessel index value correction unit that corrects the calculated blood vessel index value according to the calculated blood vessel density;a blood vessel information estimation unit that estimates blood vessel information of the living body based on the corrected blood vessel index value; anda relationship information storage unit that stores relationship information indicating a relationship between the blood vessel density and the blood vessel index value,wherein the blood vessel index value correction unit corrects the calculated blood vessel index value based on the stored relationship information.2. The image processing apparatus according to claim 1 ,wherein ...

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10-01-2019 дата публикации

CO-PLANAR, NEAR FIELD COMMUNICATION TELEMETRY LINK FOR AN ANALYTE SENSOR

Номер: US20190008385A1
Принадлежит: Senseonics, Incorporated

An inductive sensor system for remote powering and communication with an analyte sensor (e.g., a fully implantable analyte sensor). The system may include an analyte sensor and transceiver. The system may be ferrite-enhanced. The transceiver may implement a passive telemetry for communicating with the analyte sensor via an inductive magnetic link for both power and data transfer. The link may be a co-planar, near field communication telemetry link. The transceiver may include a reflection plate configured to focus flux lines linking the transceiver and the sensor uniformly beneath the transceiver. The transceiver may include an amplifier configured to amplify battery power and provide radio frequency (RF) power to a transceiver antenna. 1. A transceiver for interfacing with an analyte sensor , the transceiver comprising:an interface device configured to convey a power signal to the analyte sensor and to receive data signals from the analyte sensor; anda reflection plate configured to focus flux lines linking the interface device and the analyte sensor uniformly beneath the transceiver.2. The transceiver of claim 1 , wherein the reflection plate is rigid.3. The transceiver of claim 1 , wherein the reflection plate is flexible.4. The transceiver of claim 1 , wherein the reflection plate is metal.5. The transceiver of claim 4 , wherein the reflection plate is aluminum.6. The transceiver of claim 1 , wherein the interface device is an antenna.7. The transceiver of claim 6 , wherein the antenna has a ferrite core.8. The transceiver of claim 7 , wherein the ferrite core has a high quality factor and a high permeability.9. The transceiver of claim 7 , wherein the ferrite core is an NiZn based ferrite material.10. The transceiver of claim 6 , wherein the antenna is a flat antenna.11. The transceiver of claim 1 , wherein the reflection plate increases the efficiency of the interface device.12. The transceiver of claim 1 , wherein the reflection plate covers at least a ...

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10-01-2019 дата публикации

LIVING BODY OBSERVATION SYSTEM

Номер: US20190008423A1
Автор: KUBO Kei
Принадлежит: OLYMPUS CORPORATION

A living body observation system includes a light source apparatus configured to be able to emit light in a first wavelength band, light in a second wavelength band, and light in a third wavelength band, a processor configured to perform control to emit illumination light including the lights in the first to third wavelength bands, a first image pickup device configured to have a sensitivity in each of the first and third wavelength bands, a second image pickup device configured to have a sensitivity in the second wavelength band, and a spectral optical system configured to emit the lights in the first and third wavelength bands included in reflected light from an object irradiated with the illumination light toward the first image pickup device and emit the light in the second wavelength band included in the reflected light toward the second image pickup device. 1. A living body observation system comprising:a light source apparatus configured to be able to emit light in a first wavelength band as narrow-band light which belongs to a red range in a visible range and falls between a wavelength representing a maximum value and a wavelength representing a minimum value in an absorption characteristic of hemoglobin, light in a second wavelength band as narrow-band light which belongs to a longer wavelength side than the first wavelength band and in which an absorption coefficient in the absorption characteristic of the hemoglobin is lower than an absorption coefficient in the first wavelength band and a scattering characteristic of a living tissue is suppressed, and light in a third wavelength band as light which belongs to a shorter wavelength side than the first wavelength band;a processor configured to perform control to emit illumination light including the light in the first wavelength band, the light in the second wavelength band, and the light in the third wavelength band from the light source apparatus;a first image pickup device configured to have a ...

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09-01-2020 дата публикации

APPARATUS AND METHODS FOR DETECTING OPTICAL SIGNALS FROM IMPLANTED SENSORS

Номер: US20200008716A1
Принадлежит: Profusa, Inc.

Some embodiments described herein relate to an apparatus including a light source configured to transmit an excitation optical signal to an implanted sensor and a detector configured to detect an analyte-dependent optical signal emitted from an implanted sensor. The apparatus can include a lens configured to focus at least a portion of the analyte-dependent optical signal onto the detector. 1a light source configured to transmit an excitation optical signal to an implanted sensor;a detector configured to detect an analyte-dependent optical signal emitted from the implanted sensor in response to the implanted sensor being illuminated by the excitation optical signal; anda lens configured to focus at least a portion of the analyte-dependent optical signal onto the detector.. An apparatus, comprising: This application is a continuation of U.S. patent application Ser. No. 14/297,787, entitled “Apparatus and Methods for Detecting Optical Signals From Implanted Sensors,” filed Jun. 6, 2014, which claims priority under 35 U.S.C. § 119(e) to provisional U.S. patent application No. 61/832,065, entitled “Detection of Implant Optical Signals with Off-Axis Light Restriction,” and to provisional U.S. patent application No. 61/832,078, entitled “Detection of Implant Optical Signals with Large Ratio of Surface Area,” each filed Jun. 6, 2013, the disclosure of each of which is incorporated herein by reference in their entirety.This invention was made with government support under grant numbers NIH R01 EB016414 and NIH R43 DK093139, awarded by the National Institutes of Health. The government has certain rights in the invention.Some embodiments described herein relate to apparatus and methods for monitoring an implant, and in particular to apparatus and methods for detecting optical signals emitted from an implant with restriction of off-axis light.Some embodiments described herein relate to apparatus and methods for monitoring an implant, and in particular to apparatus and methods ...

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09-01-2020 дата публикации

ANALYTE SENSORS AND METHODS OF MANUFACTURING ANALYTE SENSORS

Номер: US20200008719A1
Принадлежит:

A method of manufacturing laminate structure including the steps of providing a waveguide structure having a plurality of waveguide cores and including a first surface, creating an oxygen sensing polymer cavity in the first surface of the waveguide structure to receive an oxygen sensing polymer, filling the oxygen sensing polymer cavity with the oxygen sensing polymer and curing the oxygen sensing polymer, adding a first layer material on top of the first surface of the waveguide structure, where the first layer material includes a reaction chamber cavity that is contiguous with the oxygen sensing polymer, filling the reaction chamber cavity with an enzymatic hydrogel and curing the enzymatic hydrogel; adding a second layer material on top of the first layer material, where the second layer material includes a conduit cavity to receive a conduit hydrogel, filling the conduit cavity with a conduit hydrogel and curing the conduit hydrogel, and adding a top cap on top of the second layer of material. 1141.-. (canceled)142. A dispensable , reversible oxygen binding molecule-albumin nanogel solution , configured to form a hydrogel upon curing , the dispensable , reversible oxygen binding molecule-albumin nanogel comprising: reversible oxygen binding molecule-albumin nanoparticles , wherein the reversible oxygen binding molecule and albumin are interconnected with a bifunctional linkers , wherein the reversible oxygen binding molecule-albumin nanoparticles are coupled to poly(ethylene glycol) (PEG) through a thio-linkage , and wherein the reversible oxygen binding molecule-albumin nanoparticles are functionalized to a nanogel matrix via a PEG-based linker.144. The dispensable claim 142 , reversible oxygen binding molecule-albumin nanogel solution of claim 142 , wherein the homobifunctional linker or heterobifunctional linker (L) is selected from a group consisting of amino acids claim 142 , peptides claim 142 , nucleotides claim 142 , nucleic acids claim 142 , organic ...

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09-01-2020 дата публикации

CONTINUOUS GLUCOSE MONITORING ON-BODY SENSOR HAVING A VISUAL DISPLAY

Номер: US20200008758A1
Принадлежит: BECTON, DICKINSON AND COMPANY

An on-body sensor (OBS) () having a continuous monitoring (CGM) device is disclosed for use in identifying an analyte, such as glucose in blood or interstitial fluid (ISF), using a biomaterial, such as glucose binding protein (GBP), that is brought into contact with the analyte. The on-body sensor () incorporating the CGM device includes a cover () which provides protection to the CGM device and includes an integrated output display (). The output display () can visually provide data received from the CGM device, to the user without the need for a separate data receiving device. 1. An on-body system for sensing an analyte in a living body , comprising:a cover at least partially containing a continuous glucose monitoring sensor having a microcontroller;a bottom surface adapted to be adhered to a first area of skin;a gyroscope adapted to recognize an orientation of the gyroscope, wherein the microcontroller is adapted to control the display to display information in accordance with the recognized orientation of the gyroscope;a first transceiver capacitively coupled to the skin and adapted to transmit a signal capacitively transmitted via said skin; andan e-paper display adapted to display data received from the first transceiver and adhered to a second area of skin, the e-paper display comprising a second transceiver capacitively coupled to the skin and adapted to receive the signal capacitively transmitted by the first transceiver.2. The on-body device of claim 1 , wherein the data comprises data relating to at least one selected from the set consisting of:a user's current glucose levels;glucose trends;CGM device malfunction notifications; andglucose measurement intervals.3. The on-body device of claim 1 , wherein the e-paper display displays at least one selected from the set consisting of:a digital representation of data; andan analog representation of data.4. The on-body device of claim 1 , wherein the e-paper display comprises at least one display element ...

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12-01-2017 дата публикации

SENSOR

Номер: US20170010274A1
Принадлежит:

A sensor for detecting and/or quantifying the amount of analyte in a sample, the sensor including: 1. (canceled)2. A sensor comprising:a sensing region;a porous barrier layer; anda reactive oxygen species (ROS)-quenching agent formed on or in the barrier layer;wherein the sensor is configured to allow an analyte in a bodily fluid sample to enter the sensing region;wherein the barrier layer is configured to allow the analyte to enter the sensing region through the barrier layer such that the analyte comes into contact with the ROS-quenching agent; and{'sub': 2', '2, 'wherein the barrier layer has an ROS-quenching activity sufficient to quench a solution of HOhaving a concentration of 10 ppm or less.'}3. The sensor of claim 2 , wherein the barrier layer is coated with the ROS-quenching agent.4. The sensor of claim 2 , wherein the ROS-quenching agent comprises platinum.5. The sensor of claim 4 , wherein the ROS-quenching agent comprises platinum in the form of nanoparticles.6. The sensor of claim 2 , wherein an entire sensing region claim 2 , or an entire surface of the sensor that comes into contact with the sample claim 2 , is coated or sheathed with the barrier layer.7. The sensor of claim 2 , wherein the sensor defines one or more openings on the surface of the sensor to allow the analyte to enter the sensing region; and wherein the barrier layer is disposed across the one or more openings to allow the analyte to enter the sensing region through the barrier layer such that the analyte comes into contact with the ROS-quenching agent.8. The sensor of claim 2 , wherein the barrier layer comprises polypropylene hollow fibres.9. The sensor of claim 2 , wherein the sensing region is provided on a support material.10. A sensor comprising:a sensing region; anda porous barrier layer comprising an ROS-quenching agent;wherein the sensor is configured to allow an analyte in a bodily fluid sample to enter the sensing region; andwherein the barrier layer is configured to allow ...

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08-01-2015 дата публикации

CONTROLLED SYMPATHECTOMY AND MICRO-ABLATION SYSTEMS AND METHODS

Номер: US20150011843A1
Принадлежит:

A catheter system for controlled sympathectomy procedures is disclosed. A catheter system for controlled micro ablation procedures is disclosed. Methods for performing a controlled surgical procedure are disclosed. A system for performing controlled surgical procedures in a minimally invasive manner is disclosed. 176-. (canceled)77. A microsurgical tool for monitoring electrophysiological activity within the vicinity of a lumen , the microsurgical tool comprising:a microfinger having a substantially elongate structure configured so as to bias a region thereof against a wall of the lumen upon deployment within the lumen; anda sensing tip electrically and mechanically coupled to the microfinger in the vicinity of the region, configured to interface with the wall of the lumen, the sensing tip configured to convey one or more electrophysiological signals associated with the activity.78. The microsurgical tool in accordance with claim 77 , wherein the electrophysiological signals are related to one or more of water concentration claim 77 , tone claim 77 , evoked potential claim 77 , remote stimulation of nervous activity claim 77 , an electromyographic signal [EMG] claim 77 , a mechanomyographic signal [MMG] claim 77 , a local field potential claim 77 , an electroacoustic event claim 77 , vasodilation claim 77 , vessel wall stiffness claim 77 , muscle sympathetic nerve activity [MSNA] claim 77 , central sympathetic drive claim 77 , tissue tone and nerve traffic.79. The microsurgical tool in accordance with claim 77 , wherein the sensing tip comprises one or more electrodes.80. The microsurgical tool in accordance with claim 77 , wherein the sensing tip is electrically coupled with a microcircuit claim 77 , the microcircuit configured to condition the signal.81. The microsurgical tool in accordance with claim 80 , wherein the microcircuit is embedded into the microsurgical tool and at least a portion of the electrical coupling is provided via the microfinger.82. The ...

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08-01-2015 дата публикации

Measuring Device for Measuring Cerebral Parameters

Номер: US20150011853A1
Принадлежит: NEMODEVICES AG

The invention relates to a measuring device and to a method for measuring parameters of a body tissue using an elongate probe ( 1 ) for insertion into the body tissue, comprising at least one optical waveguide ( 2 ) for transmitting light beams that runs along the longitudinal axis of the probe within the probe, an exit region ( 5 ) from which light beams emitted from the optical waveguide exit into the body tissue, and at least one receiving region ( 6 ) through which light beams reflected and/or scattered in the body tissue enter the probe as input light beams on a photodetector or in an optical waveguide ( 2; 3 ). The exit region ( 5 ) is provided at the distal end of the probe ( 1 ) and is oriented at least partially in the longitudinal direction of the probe ( 1 ). At least some of the emitted light beams exit the probe in the longitudinal direction of the probe. The at least one receiving region ( 6 ) is located at a distance from the distal end of the probe on a lateral circumferential region of the probe. The input light beams entering a receiving region ( 6 ) are subject to a deflection of more than 90° relative to the light beams emitted from the exit region ( 5 ).

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10-01-2019 дата публикации

NEAR-IR GLUCOSE SENSORS

Номер: US20190010170A1
Принадлежит: Profusa, Inc.

Glucose-sensing luminescent dyes, polymers, and sensors are provided. Additionally, systems including the sensors and methods of using these sensors and systems are provided. 189-. (canceled)91. The compound of claim 90 , wherein Lis a bond claim 90 , or an optionally substituted group selected from phenylene claim 90 , pyridyl claim 90 , pyrimidyl claim 90 , pyrazinyl claim 90 , thienyl claim 90 , furanyl claim 90 , pyrrolyl claim 90 , pyrazolyl claim 90 , thiazolyl claim 90 , oxazolyl claim 90 , imidazolyl claim 90 , indolyl claim 90 , benzimidazolyl claim 90 , indazolyl claim 90 , benzotriazolyl claim 90 , isoquinolyl claim 90 , quinolyl claim 90 , benzothiazolyl claim 90 , benzofuranyl claim 90 , pyrazolopyridyl claim 90 , quinazolinyl claim 90 , quinoxalinyl claim 90 , and cinnolinyl claim 90 , and.93. The compound of claim 90 , wherein Yis SiMe.94. The compound of claim 90 , wherein Ror Ris —NHC(O)C(CH)CH claim 90 , or both Rand Rare —NHC(O)C(CH)CH.95. The compound of claim 90 , wherein R claim 90 , R claim 90 , R claim 90 , and Rare —CHor —H.96. The compound of claim 90 , wherein Lis optionally substituted C-Calkyl claim 90 , optionally substituted C-Cheteroalkyl claim 90 , or (CHCHO)pCHCH claim 90 , wherein p is 2 claim 90 , 3 claim 90 , 4 claim 90 , or 5.97. The compound of claim 90 , wherein Lis optionally substituted C-Calkyl claim 90 , optionally substituted C-Cheteroalkyl claim 90 , or (CHCHO)pCHCH claim 90 , wherein p is 2 claim 90 , 3 claim 90 , 4 claim 90 , or 5.98. The compound of claim 90 , wherein R claim 90 , R claim 90 , and Rare H.99. The compound of claim 90 , wherein R claim 90 , R claim 90 , R claim 90 , and Rare H.100. The compound of claim 90 , wherein both Rare H claim 90 , and Rat each occurrence is independently selected from the group consisting of H; an electron-withdrawing group selected from the group consisting of halogen claim 90 , C(O)R′ claim 90 , COOR′ claim 90 , C(O)NH claim 90 , C(O)NR′R″ claim 90 , CF claim 90 , CN claim 90 ...

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03-02-2022 дата публикации

Systems and Methods for Lesion Formation and Assessment

Номер: US20220031377A1
Принадлежит:

System and methods for optical tissue interrogation are provided. In some embodiments, a catheter for visualizing ablated tissue is provided, and can include a catheter body, and a distal tip positioned at a distal end of the catheter body. The distal tip can have one or more openings for exchange of light energy between the distal tip of the catheter and tissue. 1. A catheter for visualizing ablated tissue comprising:a catheter body;a distal tip positioned at a distal end of the catheter body, the distal tip having one or more ports for an exchange of light energy between the distal tip and tissue;a lumen extending through the catheter body and the distal tip and having one more openings corresponding to the one or more ports on the distal tip; andone or more optical fibers configured to extend through the lumen and the one or more openings to an outer surface of the distal tip through one or more ports in the distal tip such that the one or more optical fibers direct the light energy to and from the tissue through the one or more ports.2. The catheter of claim 1 , further comprising one or more channels configured to connect the one or more openings in the lumen to the one or more ports of the distal tip to direct the one or more optical fibers to the outer surface of the distal tip.3. The catheter of claim 1 , wherein the one or more ports are disposed circumferentially along the distal tip and are spaced apart from one another by equal distance.4. The catheter of claim 1 , wherein one of the one or more ports is disposed at a distal end of the distal tip to direct light to tissue in front of the distal tip.5. The catheter of claim 1 , wherein the one or more fibers are fixedly coupled to the one or more ports in the distal tip.6. The catheter of claim 1 , wherein the distal tip is configured to deliver ablation energy to the tissue.7. The catheter of claim 6 , wherein the ablation energy is selected from a group consisting of radiofrequency (RF) energy claim 6 , ...

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19-01-2017 дата публикации

Endoscope system and method of operating the same

Номер: US20170014021A1
Автор: Masayuki Kuramoto
Принадлежит: Fujifilm Corp

Provided is an endoscope system capable of emphasizing a slight difference in color tone. An observation target in a body illuminated by red, green and blue light R, G and B at a first light emission ratio is imaged by an image pick-up sensor, and an image signal of a first color, an image signal of a second color, and an image signal of a third color are output. The light emission ratio of the red, green and blue light R, G and B is changed from the first light emission ratio to a second light emission ratio, and the amount of the red, green and blue light R, G and B is controlled so that the image signal of the second color or the image signal of the third color matches the signal level of the image signal of the first color.

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19-01-2017 дата публикации

OBSERVATION IMAGE ACQUIRING SYSTEM AND OBSERVATION IMAGE ACQUIRING METHOD

Номер: US20170014022A1
Принадлежит: OLYMPUS CORPORATION

A light source apparatus irradiates an observation target with first light in a wavelength region which does not include a wavelength region where an absorption peak of a target substance included in the observation target is present and second light in a wavelength region where the absorption peak is present. An image acquiring circuit includes an emphasized image information generating circuit which generates emphasized image information on the basis of first image information acquired by an imaging apparatus when the observation target is irradiated with the first light and second image information acquired by the imaging apparatus when the observation target is irradiated with the second light. 1. An observation image acquiring system comprising:a light source apparatus which irradiates an observation target with first light in a wavelength region which does not include a wavelength region where an absorption peak of a target substance included in the observation target is present and second light in a wavelength region where the absorption peak is present;an imaging apparatus which images the observation target to acquire image information; andan image acquiring circuit which performs an arithmetic operation for the image information acquired by the imaging apparatus to generate emphasized image information which emphasizes the target substance,wherein the image acquiring circuit comprises an emphasized image information generating circuit which generates the emphasized image information on the basis of first image information acquired by the imaging apparatus when the observation target is irradiated with the first light and second image information acquired by the imaging apparatus when the observation target is irradiated with the second light, a period that the observation target is irradiated with the second light is different to a period that the observation target is irradiated with the first light.2. The observation image acquiring system according to ...

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19-01-2017 дата публикации

ENDOSCOPE SYSTEM AND METHOD FOR OPERATING THE SAME

Номер: US20170014055A1
Автор: OTANI Kenichi
Принадлежит: FUJIFILM Corporation

A control section performs first preliminary imaging in which an observation target is illuminated with first blue light at a wavelength band of 450±10 nm and an image of the observation target is captured. A yellow pigment concentration calculator calculates concentration of the yellow pigment based on an image signal obtained by performing the first preliminary imaging. A prescribed exposure amount calculator calculates a prescribed exposure amount of second blue light at a wavelength band of 470±10 nm for second preliminary imaging based on the calculated concentration of the yellow pigment. A control section performs second preliminary imaging in which an observation target is illuminated with the second blue light and an image of the observation target is captured based on a prescribed exposure amount of the second blue light for the second preliminary imaging. An arithmetic value calculator calculates an arithmetic value based on an image signal obtained by performing the second preliminary imaging. A determination section determines whether or not the arithmetic value has become closer to an optimum value. 1. An endoscope system comprising:a light source for emitting first light at a first wavelength band in which a light absorption amount changes in accordance with a concentration of yellow pigment contained in an observation target, and second light at a second wavelength band in which a light absorption amount changes in accordance with an oxygen saturation level of hemoglobin contained in the observation target and the light absorption amount also changes in accordance with the concentration of the yellow pigment, the second wavelength band being longer than the first wavelength band;an image capturing sensor for capturing an image of the observation target;a control section for controlling at least one of the light source and the image capturing sensor, so as to perform first preliminary imaging for imaging the observation target illuminated with the ...

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18-01-2018 дата публикации

Oximetry Device with Laparoscopic Extension

Номер: US20180014759A1
Принадлежит:

A laparoscopic medical device includes an oximeter sensor at its tip, which allows the making of oxygen saturation measurements laparoscopically. The device can be a unitary design, wherein a laparoscopic element includes electronics for the oximeter sensor at a distal end (e.g., opposite the tip). The device can be a multiple piece design (e.g., two-piece design), where some electronics is in a separate housing from the laparoscopic element, and the pieces (or portions) are removably connected together. The laparoscopic element can be removed and disposed of; so, the electronics can be reused multiple times with replacement laparoscopic elements. The electronics can include a processing unit for control, computation, or display, or any combination of these. However, in an implementation, the electronics can connect wirelessly to other electronics (e.g., another processing unit) for further control, computation, or display, or any combination of these. 1. A device comprising:a first portion comprising an elongated laparoscopic element, wherein the laparoscopic element extends in a first direction and comprises a proximal end and a distal end, opposite the proximal end, a smooth outer surface, and an interior tubular space, andthe interior tubular space comprises a first cross-section transverse to the first direction, and the first cross-section comprises a first length, anda sensor head, coupled to the distal end of the laparoscopic element, wherein the interior tubular space of the laparoscopic element extends from a first opening at the proximal end of the laparoscopic element to the sensor head, andthe sensor head comprises a first structure and a second structure, the first structure is an emitter, and the second structure is a detector; anda second portion, coupled to the first portion at the distal end of the laparoscopic element, wherein the second portion comprises a first enclosure having a second cross-section transverse to the first direction, and the ...

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18-01-2018 дата публикации

Oximetry Device with Wireless Extension

Номер: US20180014760A1
Принадлежит:

A laparoscopic medical device includes an oximeter sensor at its tip, which allows the making of oxygen saturation measurements laparoscopically. The device can be a unitary design, wherein a laparoscopic element includes electronics for the oximeter sensor at a distal end (e.g., opposite the tip). The device can be a multiple piece design (e.g., two-piece design), where some electronics is in a separate housing from the laparoscopic element, and the pieces (or portions) are removably connected together. The laparoscopic element can be removed and disposed of; so, the electronics can be reused multiple times with replacement laparoscopic elements. The electronics can include a processing unit for control, computation, or display, or any combination of these. However, in an implementation, the electronics can connect wirelessly to other electronics (e.g., another processing unit) for further control, computation, or display, or any combination of these. 1. A method comprising:providing an oximeter probe comprising a sensor head comprising a first structure and a second structure, wherein the first structure is an emitter, the second structure is a detector, and the oximeter probe comprises a first wireless transceiver;coupling the oximeter probe to a system unit comprising a second wireless transceiver and a processing unit, wherein the second wireless transceiver communicates wirelessly with the first wireless transceiver through a direct wireless connection;receiving light and converting into electrical signal information using the detector;converting the electrical signal information on the received light into digital signal information; andusing the first wireless transceiver, transmitting the digital signal information over the direct wireless connection.2. The method of comprising:using the second wireless transceiver, receiving the digital signal information from the oximeter probe;processing the digital signal information using a processing circuit of the ...

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18-01-2018 дата публикации

Oximetry Device with Laparoscopic Extension

Номер: US20180014764A1
Принадлежит:

A laparoscopic medical device includes an oximeter sensor at its tip, which allows the making of oxygen saturation measurements laparoscopically. The device can be a unitary design, wherein a laparoscopic element includes electronics for the oximeter sensor at a distal end (e.g., opposite the tip). The device can be a multiple piece design (e.g., two-piece design), where some electronics is in a separate housing from the laparoscopic element, and the pieces (or portions) are removably connected together. The laparoscopic element can be removed and disposed of; so, the electronics can be reused multiple times with replacement laparoscopic elements. The electronics can include a processing unit for control, computation, or display, or any combination of these. However, in an implementation, the electronics can connect wirelessly to other electronics (e.g., another processing unit) for further control, computation, or display, or any combination of these. 1. A method comprising:forming a first portion of an oximeter device;forming an elongated laparoscopic element of the first portion that extends in a first direction;positioning a proximal end of the laparoscopic element in the first direction from a distal end of the laparoscopic element;smoothing an outer surface of the laparoscopic element;forming an interior tubular space of the laparoscopic element that extend from the proximal end to the distal end,wherein the interior tubular space comprises a first cross-section that is transverse to the first direction, the first cross-section comprises a first length and the interior tubular space of the laparoscopic element extends from a first opening at the proximal end of the laparoscopic element to a second opening at the distal end of the laparoscopic element;positioning a sensor head in the second opening of interior tubular space at the distal end of the laparoscopic element,forming a first structure and a second structure of the sensor head, wherein the first ...

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21-01-2021 дата публикации

APPARATUS, SYSTEMS AND METHODS FOR CHARACTERIZING, IMAGING AND/OR MODIFYING AN OBJECT

Номер: US20210015370A1
Принадлежит:

Method and apparatus can be provided according to an exemplary embodiment of the present disclosure. For example, with at least one first section of an optical enclosure, it is possible to provide at least one first electro-magnetic radiation. In addition, with at least one second section provided within the enclosure, it is possible to cause, upon impact by the first radiation, a redirection of the first radiation to become at least one second radiation. Further, with at least one third section of the optical enclosure, it is possible to cause at least one second radiation to be provided to a tissue. For example, the redirection of the first radiation causes, at least approximately, a uniform optical illumination on of a surface of the tissue. 116-. (canceled)17. An apparatus , comprising: [ 'at least a portion of the at least one first electro-magnetic radiation being transmitted adjacent to an opening of the port,', '(i) at least one first section that facilitates a transmission therethrough of at least one first electro-magnetic radiation,'}, 'at least a portion of the at least one second electro-magnetic radiation being redirected through the opening of the port, and', '(ii) at least one second section within the optical enclosure that, upon impact by the first radiation, redirects the first radiation to become at least one second radiation,'}, 'wherein the redirection of the first radiation causes approximately uniform optical illumination onto a surface of the tissue; and', '(iii) at least one third section which is configured to provide the at least one second radiation to a tissue via the port,'}], 'an optical enclosure including a port, the optical enclosure including wherein a detection surface of the acoustic detector is adjacent to the optical enclosure and oriented parallel to both the surface of the tissue which receives the optical illumination and the opening of the port, and', 'wherein at least a portion of the acoustic wave information is emitted ...

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15-01-2015 дата публикации

Fiber Optic Device for Sensing Analytes and Method of Making Same

Номер: US20150018641A1
Принадлежит: Becton Dickinson and Co

A device for sensing analyte concentration, and in particular glucose concentration, in vivo or in vitro is disclosed. A sensing element is attached to the distal end of an optical conduit, and comprises at least one binding protein adapted to bind with at least one target analyte. The sensing element further comprises at least one reporter group that undergoes a luminescence change with changing analyte concentrations. Optionally, the optical conduit and sensing element may be housed within a cannulated bevel.

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28-01-2016 дата публикации

CONTINUOUS GLUCOSE MONITORING ON-BODY SENSOR

Номер: US20160022179A1
Принадлежит: BECTON, DICKINSON AND COMPANY

An on-body sensor (OBS) () having a continuous monitoring (CGM) device is disclosed for use in identifying an analyte, such as glucose in blood or interstitial fluid (ISF), using a biomaterial, such as glucose binding protein (GBP), that is brought into contact with the analyte. The on-body sensor () incorporating the CGM device includes a housing () which provides protection to the CGM device while providing comfort to a user wearing the device. The OBS also includes an adhesive structure that provides a comfortable, discreet and secure user experience. 1. An on-body device for sensing an analyte in a living body , comprising:a cover at least partially containing a glucose monitoring sensor; anda first bottom surface adapted to be adhered to skin, and further adapted to reduce at least one of skin irritation and nuisance to a user.2. The on-body device of claim 1 , further comprising a handle adapted to force the cover in a direction of a user.3. The on-body device of claim 2 , wherein the handle is removable.4. The on-body device of claim 2 , wherein the handle is made of a fabric material.5. The on-body device of claim 2 , wherein the handle has a substantially narrow and elongated shape claim 2 , and wherein the cover is formed by silicone.6. The on-body device of claim 2 , wherein the cover and the handle have an hourglass-like shape.7. The on-body device of claim 1 , wherein the first bottom surface comprises a first adhesive.8. The on-body device of claim 7 , further comprising a first adhesive release paper that can be removed to expose the first adhesive9. The on-body device of claim 8 , first adhesive release paper comprises opposing flaps that are adapted to be joined together above the cover.10. The on-body device of claim 1 , further comprising a handle hinged to a top surface of the cover.11. The on-body device of claim 10 , wherein the handle is adapted to be rotated to a substantially parallel position with respect to a top surface of the cover.12. ...

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28-01-2016 дата публикации

Long-term implantable monitoring system & methods of use

Номер: US20160022180A1
Принадлежит: THOMAS JEFFERSON UNIVERSITY

Methods and systems include a long-term implantable ultra-filtrate monitoring system that uses micro-porous membranes to produce an ultra-filtrate of tissue interstitial fluid or blood plasma. The ultra-filtrate is transported through a sensor to detect a level of analyte in the ultra-filtrate. The long-term implantable fluid monitoring system thus includes a first porous catheter, a second porous catheter, a sensor configured to measure an amount of analyte in fluid, and a pump configured to move fluid through the first porous catheter to the sensor and from the sensor through the second porous catheter.

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26-01-2017 дата публикации

CANARY ON A CHIP: EMBEDDED SENSORS WITH BIO-CHEMICAL INTERFACES

Номер: US20170020415A1
Автор: GAUR Arti, Scherer Axel
Принадлежит:

Wireless electrochemical measurements methods using minimally invasive micro-sensors that monitor response of cells to specific analytes are described. Micro-actuators integrated on a same chip as the micro-sensors are used to provide closed loop in-vivo local therapy on demand. An in-vivo bio-electronic system that can monitor the health of cell colonies and accordingly dispense corresponding therapeutic drugs is also described. 1. A method for in-vivo measuring of metabolic health of cells , the method comprising:providing a miniaturized wireless implantable device configured to sense a chemistry of interest;selecting a cell culture or colonies specific to an analyte of interest;confining the cell cultures or colonies, and the miniaturized wireless implantable device in a semi-permeable cell containment barrier;implanting the semi-permeable cell containment barrier into a living body comprising the analyte of interest;based on the implanting, subjecting the cell cultures or colonies to the analyte of interest;based on the subjecting, obtaining a metabolic reaction of the cell cultures or colonies with the analyte;based on the obtaining, releasing the chemistry of interest; andbased on the releasing, sensing the chemistry of interest via sensors of the miniaturized wireless implantable device, thereby measuring metabolic health of cells of the cell cultures or colonies.2. The method according to claim 1 , wherein the semi-permeable cell containment barrier is one of: a) and organic pouch claim 1 , and b) parylene.3. The method according to claim 1 , wherein the cell cultures or colonies are specifically selected for sensing one or more of: a) genomic markers like micro-RNAs and circulating DNAs claim 1 , and b) exosomes and cytokine molecules in blood claim 1 , interstitial fluid claim 1 , urine or saliva.4. The method according to claim 1 , wherein the miniaturized implantable device is further configured for delivery of a payload via one or more integrated ...

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25-01-2018 дата публикации

PROCESSOR DEVICE AND METHOD FOR OPERATING SAME, AND ENDOSCOPIC SYSTEM AND METHOD FOR OPERATING SAME

Номер: US20180020903A1
Автор: SAITO Takaaki
Принадлежит: FUJIFILM Corporation

An image signal acquisition unit acquires a first image signal corresponding to a first wavelength band, a second image signal corresponding to a second wavelength band, a third image signal corresponding to a third wavelength band, and a fourth image signal corresponding to a fourth wavelength band. A correlation storage unit stores a correlation between oxygen saturation degree and a first calculated value obtained from a specific calculation based on the second image signal, the third image signal, and the fourth image signal. A correlation correction unit calculates a correlation correction amount on the basis of the first image signal, the second image signal, the third image signal, and the fourth image signal, and corrects the correlation on the basis of the correction amount. 1. A processor device comprising:an image signal acquisition unit that acquires a first image signal corresponding to a first wavelength band whose light absorption amount varies according to a density of a pigment other than hemoglobin among pigments included in an observation target, a second image signal corresponding to a second wavelength band whose light absorption amount varies according to an oxygen saturation degree of the hemoglobin included in the observation target, a third image signal corresponding to a third wavelength band that has a wavelength longer than the first wavelength band and the second wavelength band and whose light absorption amount varies according to an amount of blood, and a fourth image signal corresponding to a fourth wavelength band that has a wavelength longer than the third wavelength band;a correlation storage unit that stores a correlation between a first calculated value obtained by a specific calculation based on the second image signal, the third image signal, and the fourth image signal, and the oxygen saturation degree; anda correlation correction unit that calculates a correction amount of the correlation on the basis of the first image ...

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25-01-2018 дата публикации

APPLICATION OF ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY IN SENSOR SYSTEMS, DEVICES, AND RELATED METHODS

Номер: US20180021515A1
Принадлежит:

A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters. 1. A method of calculating a single , fused sensor glucose value based on respective glucose measurement signals of a plurality of redundant sensing electrodes , comprising:performing respective electrochemical impedance spectroscopy (EIS) procedures for each of the plurality of redundant sensing electrodes to obtain values of at least one impedance-based parameter for each said sensing electrode;measuring the electrode current (Isig) for each of the plurality of redundant sensing electrodes;calibrating each of the measured Isigs by using a blood glucose (BG) value to obtain respective calibrated sensor glucose values; calculating a first similarity index to determine an amount of divergence between respective Isigs of at least a first one and a second one of said plurality of redundant sensing electrodes;', 'calculating a second similarity index to determine an amount of divergence between respective values of the at least one impedance-based parameter for said at least first one and ...

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24-01-2019 дата публикации

IMAGE PROCESSING DEVICE, METHOD FOR OPERATING SAME, ENDOSCOPE PROCESSOR DEVICE, AND METHOD FOR OPERATING SAME

Номер: US20190021579A1
Автор: KAMON Shumpei
Принадлежит: FUJIFILM Corporation

Provided are an image processing device and a method for operating the same, and an endoscope processor device and a method for operating the same that accurately measure the blood vessel depth of blood vessels in an observation target. A data set including a plurality of items of measurement data in which blood vessel index values, such as blood vessel contrast and a plurality of blood vessel index value variation factors including the blood vessel depth are associated with each other is stored in a data set storage unit . A specific blood vessel index value variation factor other than the blood vessel depth is measured. The data set is narrowed to a sub-data set having the specific blood vessel index value variation factor. A blood vessel depth corresponding to a blood vessel index value calculated by the blood vessel index value calculation unit is found from the sub-data set. 1. An image processing device that measures a blood vessel depth of a blood vessel in an observation target , the image processing device comprising:an image acquisition unit that acquires an image obtained by imaging the observation target;a blood vessel index value calculation unit that calculates a blood vessel index value from a blood vessel index value image in the image;a data set storage unit that stores a data set including a plurality of items of measurement data in which the blood vessel index value and a plurality of blood vessel index value variation factors that vary the blood vessel index value and include the blood vessel depth are associated with each other;a blood vessel index value variation factor measurement unit that measures a specific blood vessel index value variation factor other than the blood vessel depth among the plurality of blood vessel index value variation factors; anda blood vessel depth calculation unit that narrows the data set to a sub-data set having the specific blood vessel index value variation factor and calculates a blood vessel depth corresponding ...

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24-01-2019 дата публикации

EARLY STROKE DETECTION DEVICE

Номер: US20190021635A1
Автор: Teitelbaum George P.
Принадлежит:

A stroke detection device (), and associated methods of operation, for early detection of ischemic stroke. The device () includes a fiberoptic port () connected to an end of a fiberoptic catheter (), the catheter () including a first optical fiber () and a second optical fiber () each extending along at least a portion of the catheter (). The catheter () is configured to direct infrared light along the first optical fiber to illuminate a subcutaneous region of the patient, and to further obtain reflected light data via the second optical fiber based on the infrared light reflected from cells present in the subcutaneous region. Based on the reflected light data, the stroke detection device () monitors SjVO2 levels for early detection of ischemic strokes. 1. An implantable stroke detection device comprising:a catheter including a first optical fiber and a second optical fiber each extending along at least a portion of the catheter, the catheter insertable into a subcutaneous region of a patient's skin, the catheter configured to direct infrared light along the first optical fiber to illuminate the subcutaneous region, and to further obtain reflected light data via the second optical fiber based on the reflected infrared light from cells present in the subcutaneous region;a fiberoptic port connected to one end of the catheter; anda sensor in communication with the fiberoptic port, the sensor operable to receive the reflected light data.2. The implantable stroke detection device of claim 1 , further comprising a processor in operable communication with the sensor claim 1 , the processor operable to analyze the reflected light data and determine SVOlevels based on the reflected light data.3. The implantable stroke detection device of claim 2 , further comprising an illumination source operable to produce the infrared light.4. The implantable stroke detection device of claim 3 , further comprising a battery unit carried by the fiberoptic port claim 3 , the battery unit ...

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24-01-2019 дата публикации

SYSTEMS AND METHODS FOR CONTINUOUS HEALTH MONITORING USING AN OPTO-ENZYMATIC ANALYTE SENSOR

Номер: US20190021672A1
Автор: Bremer Troy M.
Принадлежит:

Certain embodiments described herein pertain to optical sensors, systems and methods for continuous glucose monitoring. In some embodiments, methods of preparing a layered optical sensor are disclosed. The optical sensor can be formed by laminating a plurality of sheets together to form a final sensor. In some embodiments, the sensor tip comprises a oxygen conduit, an enzymatic layer, and an sensing layer. In some embodiments, the sensor includes a plurality of waveguides configured to direct light to and from a target material, such as an oxygen sensing polymer. Systems are also disclosed for an adhesive system for attaching an optical sensor-transmitter system. Methods and systems are also disclosed for a sensor inserter system. The inserter can include a lancet tip that includes a convex feature attached to a first surface of the lancet tip. 1218-. (canceled)219. A controller for continuous health monitoring comprising:an optical source configured to emit a plurality of optical interrogation signals via an optical pathway to a sensor implanted in a patient;a detector configured to measure a plurality of optical emissions from the sensor, the optical emissions indicative of an interstitial analyte concentration of the patient;a processor circuit in communication with the optical source and the detector, the processor circuit configured to determine a measure of analyte concentration based on the detected optical emissions;a memory circuit in communication with the processor circuit configured to store the determined measure of analyte concentration; anda transmitter in communication with the processor circuit configured to transmit the measure of analyte concentration.220. The controller of claim 219 , wherein the analyte is glucose.221. The controller of claim 219 , wherein the analyte is lactate.222. The controller of claim 219 , wherein the processor circuit is further configured to determine a frequency claim 219 , a timing claim 219 , and/or a duration for ...

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23-01-2020 дата публикации

OXYGEN MEASUREMENT DEVICE AND OXYGEN MEASUREMENT SYSTEM

Номер: US20200022636A1
Принадлежит: TERUMO KABUSHIKI KAISHA

An oxygen measurement device constituting an oxygen measurement system includes a urethral catheter and an oxygen sensor main body. The urethral catheter has a shaft in which a urethral catheter lumen that enables circulation of urine flowed in via a urethral catheter port from inside a bladder is formed; and has a hub in which a urine lumen that is provided at a proximal end of the shaft and communicates with the urethral catheter lumen is formed. The oxygen sensor main body is provided on the hub in a manner capable of being brought into contact with urine circulating in the urine lumen, and detects oxygen in the urine. 1. An oxygen measurement device that measures oxygen in a patient's urine , the oxygen measurement device comprising:an elongated urethral catheter possessing a distal portion that is positionable in a bladder of the patient, the elongated urethral catheter being comprised of a wall surrounding a urethral catheter lumen that extends from a distal end of the elongated urethral catheter to a proximal end of the elongated urethral catheter, the elongated urethral catheter including a urethral catheter port that passes through the wall of the elongated urethral catheter and communicates with the urethral catheter lumen to permit urine in the patient's bladder to enter the urethral catheter lumen by way of the urethral catheter port when the distal portion of the elongated urethral catheter is positioned in the patient's bladder;a hub provided at the proximal end of the elongated urethral catheter, the hub being comprised of a wall that surrounds a lumen extending throughout the hub and communicating with the urethral catheter lumen so that the urine flowing in the urethral catheter lumen circulates into the lumen in the hub; anda sensor that detects oxygen in the urine flowing in the lumen of the hub, the sensor comprising phosphor supported on a base, the base being mounted in the wall of the hub and the phosphor being exposed to the lumen in the hub ...

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23-01-2020 дата публикации

Monitoring system and oxygen measurement system

Номер: US20200022638A1
Принадлежит: Terumo Corp

A monitoring system which constitutes an oxygen measurement system includes: an oxygen partial pressure calculation unit that calculates an oxygen partial pressure in urine based on an output signal from the oxygen measurement device; a monitor that displays the oxygen partial pressure calculated by the oxygen partial pressure calculation unit; and a display control unit that changes a format of display of the oxygen partial pressure displayed by the monitor according to the flow rate of urine acquired based on the output signal from the oxygen measurement device.

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28-01-2021 дата публикации

REAL-TIME AND LABEL-FREE APPROACH FOR CANCER DIAGNOSIS

Номер: US20210022650A1
Принадлежит:

An electrochemical probe for in-vivo measurement of HOoxidation within a living tissue. The electrochemical probe includes a sensing part and a handle. The sensing part includes a working electrode including a first biocompatible conductive needle, a counter electrode including a second biocompatible conductive needle, and a reference electrode including a third biocompatible conductive needle. The working electrode, the counter electrode, and the reference electrode are configured to put in contact with the living tissue by inserting the sensing part into the living tissue. The handle includes an insertion part that may be configured to insert the sensing part into the living tissue. The sensing part is attached to the insertion part. 117-. (canceled)18- An electrochemical probe for in-vivo measurement of HOoxidation within a living tissue , comprising: a working electrode comprising a first biocompatible conductive needle;', 'a counter electrode comprising a second biocompatible conductive needle; and', 'a reference electrode comprising a third biocompatible conductive needle,', 'wherein the working electrode, the counter electrode, and the reference electrode are configured to be put in contact with the living tissue by inserting the sensing part into the living tissue; and, 'a sensing part, comprisinga handle comprising an insertion part configured to insert the sensing part into the living tissue,wherein the sensing part is attached to the insertion part.191- The electrochemical probe of claim , wherein each of the first biocompatible conductive needle , the second biocompatible conductive needle , and the third biocompatible conductive needle comprises respective sensing tips , each sensing tip of the respective sensitive tips comprising:a respective catalyst layer deposited on the sensing tip; andan array of respective vertically aligned multi-walled carbon nanotubes (VAMWCNTs) grown on the respective catalyst layer.20- The electrochemical probe of claim 19 , ...

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02-02-2017 дата публикации

ENDOSCOPE APPARATUS

Номер: US20170027428A1
Автор: IGARASHI Makoto
Принадлежит: OLYMPUS CORPORATION

An endoscope apparatus includes: a light source section configured to generate first light emitted to a subject having hemoglobin and second light; an image pickup section configured to receive light from the subject irradiated with the light from the light source section to generate an image pickup signal; an image generation section configured to generate an observation image of the subject from a first image pickup signal generated by receiving light from the subject irradiated with the first light and a second image pickup signal generated by receiving light from the subject irradiated with the second light; and a control section configured to control a spectral product of at least one of the first light and the second light such that a spectral product in the wavelength band of the first light falls within 50% to 150% of a spectral product in the wavelength band of the second light. 1. An endoscope apparatus comprising:a light source section configured to generate light of a first wavelength band emitted to a subject having hemoglobin, the light of the first wavelength band having spectral characteristics of a narrow band between a wavelength including a maximum value and a wavelength including a minimum value on light absorption characteristics of the hemoglobin in a red band of a visible wavelength band, the light source section also configured to generate light of a second wavelength band in which scattering characteristics in the subject and absorption characteristics of the hemoglobin are lower than in the light of the first wavelength band, the light of the second wavelength band including a wavelength band that is a wavelength longer than the light of the first wavelength band;an image pickup section configured to receive light from the subject irradiated with the light from the light source section to generate an image pickup signal;an image generation section configured to generate an observation image of the subject from a first image pickup signal ...

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04-02-2016 дата публикации

METHODS AND SYSTEM FOR CHARACTERIZING AN OBJECT

Номер: US20160029894A1
Принадлежит: The General Hospital Corporation

Exemplary system, method and computer accessible medium are provided for determining at least one characteristic of a target object located behind or within a medium. For example, it is possible to identify a reference object that is located behind or within the medium. The target object and the reference object can be irradiated via a surface of the medium using at least one electromagnetic wave. At least one acoustic signal provided from an irradiated tissue volume that is responsive to the electromagnetic wave(s) can be measured. Calibration information can be obtained from the acoustic signal measured from the reference object based on at least one known property of the reference object. Then, the characteristic(s) of the target object can be determined based on the calibration information and the acoustic signal from the target object. 1. A system for determining at least one characteristic of at least one anatomical structure , comprising:a first arrangement configured to forward at least one electromagnetic radiation having a time-varying intensity to the at least one anatomical structure and a further anatomical structure;a detector second arrangement configured to detect at least one acoustic signal provided from each of the at least one anatomical structure and the further anatomical structure in response to the at least one electromagnetic radiation impacting the structures; anda processing hardware third arrangement configured to (i) obtain calibration data from the acoustic signal from the further anatomical structure, based on at least one property of thereof; and (ii) determine the at least one characteristic of the at least one anatomical structure using the calibration data and the acoustic signal from the at least one anatomical structure.2. The system according to claim 1 , wherein the at least one characteristic includes a blood oxygen saturation.3. The system according to claim 1 , wherein the second arrangement comprises at least one acoustic ...

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04-02-2016 дата публикации

COMPACT BIOSENSOR OF MATRIX METALLOPROTEINASE WITH CADMIUM FREE QUANTUM DOTS

Номер: US20160029930A1
Принадлежит:

The invention provides a quantum dot (QD) modified optical fiber-based biosensor which characterizes matrix metalloproteinase (MMP) enzyme activity at pain signaling sites in the central nervous system (CNS) in vivo. Related systems and peptide biomarker screening methods are also provided. 147-. (canceled)48. A quantum dot (QD) modified optical fiber-based biosensor system adapted for evaluation of metalloproteinase (MMP) enzyme activity at pain signaling sites in the central nervous system (CNS) , said biosensor system comprising:a multimode silica optical fiber comprising one or more quantum dots that are bioconjugated on their surface to one or more peptides having an affinity for said metalloproteinase (MMP) enzyme, and that are tethered to an insertion end of said multimode silica optical fiber by one or more silane coupling agents; anda photon detector;wherein changes in photon emission resulting from interaction of said metalloproteinase (MMP) enzyme and peptides having an affinity for said metalloproteinase (MMP) enzyme are detected by said photon detector, said multimode silica optical fiber is tethered to a quantum dot donor and to a quantum dot acceptor by one or more biotin and streptavidin-modified silane coupling agents; andsaid quantum dot donor and quantum dot acceptor are linked by a peptide having an affinity for said metalloproteinase (MMP) enzyme.49. A method for evaluating in vivo metalloproteinase (MMP) enzyme activity at a subject's central nervous system pain signaling site , the method comprising: a multimode silica optical fiber comprising one or more quantum dots that (1) are bioconjugated on their surface to one or more peptides having an affinity for said metalloproteinase (MMP) enzyme, and (2) that are tethered to an insertion end of said multimode silica optical fiber by one or more silane coupling agents; and', 'a photon detector;', 'wherein changes in photon emission resulting from interaction of said metalloproteinase (MMP) enzyme ...

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04-02-2016 дата публикации

FLUID EXTRACTION AND DRUG DELIVERY SYSTEM AND METHODS USING MICRONEEDLES

Номер: US20160029937A1
Принадлежит:

Devices systems and methods for fluid extraction and delivery to human or animal hosts are described. In embodiments, microneedles are employed to provide low infection risk and painless access to and administration of fluids. The disclosed embodiments address, among others, issues of cost, portability, ease of use in remote settings including use by untrained personnel, and others. 1. A device for sampling fluid , comprising:a first member having an array of microneedles and, coplanar therewith, an array of detectors, the optical detectors being adapted to detect hemoglobin in the body of a human or animal subject;a controller configured to receive signals from the detectors and to calculate a position for insertion of an extraction needle responsively to the detector signals, either by itself or by conveying data to a remote computation device;a drive motor arranged to move the first member to position a selected one of the microneedles responsively to said position for insertion;a mechanism constructed to translate the selected one of the microneedles along an axis thereof such that the selected one of microneedles can be inserted in a human or animal subject.2. The device of claim 1 , further comprising a housing enclosing at least the first member and fitted with a retaining strap to permit the housing to be strapped to a human or animal subject.3. The device of claim 1 , wherein the first member is fitted with an extraction motor arranged to move the selected one of the microneedles along an axis thereof.4. The device of claim 1 , further comprising a second member claim 1 , movable relative to the first claim 1 , and carrying an extraction motor arranged to move the selected one of the microneedles along an axis thereof.5. The device of claim 3 , wherein the extraction motor is one of a linear motor and a thermoelectric motor.6. The device of claim 1 , where in the first member includes a network of channels and a sample chamber held under vacuum.7. The ...

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04-02-2016 дата публикации

CONTINUOUS GLUCOSE MONITORING ON-BODY SENSOR HAVING A VISUAL DISPLAY

Номер: US20160029977A1
Принадлежит: BECTON, DICKINSON AND COMPANY

An on-body sensor (OBS) () having a continuous monitoring (CGM) device is disclosed for use in identifying an analyte, such as glucose in blood or interstitial fluid (ISF), using a biomaterial, such as glucose binding protein (GBP), that is brought into contact with the analyte. The on-body sensor () incorporating the CGM device includes a cover () which provides protection to the CGM device and includes an integrated output display (). The output display () can visually provide data received from the CGM device, to the user without the need for a separate data receiving device. 1. An on-body device for sensing an analyte in a living body , comprising:a cover at least partially containing a continuous glucose monitoring sensor having a microcontroller;a first bottom surface adapted to be adhered to skin; anda second surface having a display adapted to display data transmitted by the microcontroller.2. The on-body device of claim 1 , wherein the data comprises data relating to at least one selected from the set consisting of:a user's current glucose levels;glucose trends;CGM device malfunction notifications;when the output display is illuminated or shut down; andglucose measurement intervals.3. The on-body device of claim 1 , wherein the second surface comprises at least one selected from the set consisting of a top surface of the cover and a side surface of the cover.4. The on-body device of claim 1 , further comprising a gyroscope adapted to recognize an orientation of the gyroscope claim 1 , wherein the display is adapted to display information in accordance with the recognized orientation of the gyroscope.5. The on-body device of claim 1 , wherein the display displays at least one selected from the set consisting of:a digital representation of data; andan analog representation of data.6. The on-body device of claim 1 , wherein the display comprises at least one display element selected from the set consisting of:a light-emitting diode; anda liquid-crystal display ...

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04-02-2016 дата публикации

IMPLANTABLE ESTRUS DETECTION DEVICES, SYSTEMS, AND METHODS

Номер: US20160030010A1
Принадлежит: PALO ALTO RESEARCH CENTER INCORPORATED

Devices, systems, and methods for detecting estrus in subjects are provided. Devices include a housing configured for intravaginal/intrauterine deployment and retention and a sensor disposed in or on the housing, and are configured to use condition information sensed by the sensor to determine an estrus condition of the subject. Methods include deploying a device in the subject, sensing the condition information, and determining an estrus condition using the condition information. Systems include a device configured to communicate with a base station and/or with other implanted devices, which are located within a reception radius thereof, regarding the determined estrus condition. 1. A method of detecting an estrus condition of a subject , comprising:deploying in the subject an estrus detection device configured for intravaginal or intrauterine retention;sensing, via at least one sensor of the device, condition information of the subject; anddetermining an estrus condition of the subject using the condition information.2. The method of claim 1 , further comprising:programming the device with biometric information, identification information, or both, about the subject.3. The method of claim 1 , wherein the at least one sensor is selected from the group consisting of temperature sensors claim 1 , conductivity sensors claim 1 , color sensors claim 1 , pulse sensors claim 1 , activity sensors claim 1 , mounting sensors claim 1 , and pressure sensors.4. The method of claim 1 , wherein:the sensing comprises sensing, via at least two sensors, condition information of the subject, andthe at least two sensors are selected from the group consisting of temperature sensors, conductivity sensors, color sensors, pulse sensors, activity sensors, mounting sensors, and pressure sensors.5. The method of claim 1 , further comprising:dispensing a fluid when the estrus condition of the subject meets a predetermined threshold,wherein the fluid is selected from the group consisting of ...

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17-02-2022 дата публикации

APPLICATION OF ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY IN SENSOR SYSTEMS, DEVICES, AND RELATED METHODS

Номер: US20220047187A1
Принадлежит:

A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters. 16-. (canceled)7. A method for detection of sensitivity loss for a working electrode of a sensor , the method comprising:accessing, by a microprocessor, multiple sets of impedance related data for the working electrode over time, wherein an electrochemical impedance spectroscopy (EIS) procedure is performed to generate the multiple sets of impedance related data, and each of the multiple sets of impedance related data includes data for at least one impedance-related parameter that is substantially glucose-independent;based on multiple sets of impedance related data, calculating, by the microprocessor, real impedance values at 0.105 Hz and voltages at the working electrode;determining, by the microprocessor, based on the real impedance values and voltages over time, that the working electrode is experiencing an oxygen deficiency-led loss of sensitivity based on the real impedance values becoming more positive over time and the voltages reaching a rail voltage; andbased on the ...

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30-01-2020 дата публикации

Monitoring Apparatus, Monitoring Bougie, and Monitoring System

Номер: US20200029787A1
Принадлежит: Pionmedek Medical Technologies Co Ltd

A monitoring system includes a monitoring apparatus ( 2 ) and a monitoring bougie ( 1 ). The monitoring apparatus ( 2 ) includes a first interface ( 21 ) detachably connecting the monitoring bougie ( 1 ), a signal processing module which receives and processes a collected signal transmitted by the monitoring bougie ( 1 ) to obtain a processed signal, and a display module which displays the processed signal. Since the monitoring bougie ( 1 ) and the monitoring apparatus ( 2 ) are connected detachably, the monitoring apparatus ( 2 ) can be removed from the monitoring bougie ( 1 ) during CT, MR or other inspection that affects or is affected by an electronic circuit, thereby causing no influence on the inspection result.

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09-02-2017 дата публикации

Apparatus and method for endovascular device guiding and positioning using physiological parameters

Номер: US20170035392A1
Принадлежит: VasoNova Inc

An endovascular navigation system and method are disclosed. The endovascular navigation system includes an elongate flexible member configured to access the venous vasculature of a patient, a processor, and a display. The elongate flexible member includes an endovascular electrogram lead disposed at a distal end of the elongate flexible member and configured to sense an endovascular electrogram signal of the venous vasculature of the patient, and a first wireless interface configured to wirelessly transmit the endovascular electrogram signal to the processor. The processor includes a second wireless interface configured to wirelessly receive the endovascular electrogram signal from the elongate flexible member. The processor is configured to determine that the position of the distal end of the elongate flexible member is within a predetermined structure within the venous vasculature of the patient. The display is configured to display a visual indication that the distal end of the elongate flexible member is within the predetermined structure within the venous vasculature of the patient.

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09-02-2017 дата публикации

SYSTEMS, DEVICES AND METHODS FOR TISSUE REMOVAL AND ANALYSIS

Номер: US20170035399A1
Автор: MAK Siu Wai Jacky
Принадлежит:

Systems, devices and methods are provided for performing tissue removal and analysis based on the in-situ optical analysis of tissue and of liquid collected from the tissue region. In one example embodiment, a tissue removal and analysis probe includes an elongate tissue removal device, an optical fiber, and a fluid fillable conduit, where distal ends of the optical fiber and the conduit are in communication with an external region that is adjacent to a distal functional portion of the tissue removal device. The results of optical analysis one of both of external tissue and collected fluid may be employed to determine whether or not tissue removal is to be carried out. Various devices may be interfaced with the conduit for optical analysis of the collected fluid. In one example embodiment, the tissue removal device may be movable relative to the optical fiber and conduit. 1. A tissue removal and analysis system comprising: an elongate tissue removal device having a distal portion that is configured to sample or remove tissue;', 'an optical fiber having a distal end in optical communication with an external region that is adjacent to said distal portion; and', 'a fluid-fillable conduit having a distal aperture in fluid communication with the external region for collecting a fluid sample from the external region; and, 'a tissue removal and analysis probe comprisingan optical detection subsystem configured to be in optical communication with a proximal end of said optical fiber and with at least a portion of the fluid sample collected by said fluid-fillable conduit;wherein said optical detection subsystem is configured to direct first incident optical energy into said optical fiber and to detect first received optical energy that is responsively produced within the external region; andwherein said optical detection subsystem is further configured to direct second incident optical energy into the fluid sample collected by said fluid-fillable conduit, and to detect ...

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24-02-2022 дата публикации

APPARATUS FOR COUPLING RADIATION INTO AND OUT OF AN OPTICAL FIBER

Номер: US20220054052A1
Автор: Loach Andrew
Принадлежит: NGPod Global Limited

An apparatus for coupling radiation into and out of an optical fiber includes an optical element, a radiation system and a sensor system. The optical element is for coupling radiation into and out of the optical fiber. The radiation system produces input radiation, so that the input radiation is at least partially received by the optical element. The sensor system is for receiving output radiation from the optical element and operates to generate a signal indicative of at least one characteristic of the output radiation. The optical element, the radiation system and the sensor system are generally co-axial and the radiation system and the sensor system are both disposed on the same side of the optical element. 1. An apparatus for coupling radiation into and out of an optical fiber , the apparatus comprising:an optical element for coupling radiation into and out of the optical fiber;a radiation system operable to produce input radiation, the radiation system so that the input radiation is at least partially received by the optical element; anda sensor system for receiving output radiation from the optical element and operable to generate a signal indicative of at least one characteristic of the output radiation;wherein the optical element, the radiation system and the sensor system are substantially co-axial and the radiation system and the sensor system are both disposed on the same side of the optical element.2. The apparatus of claim 1 , wherein the sensor system is disposed between the optical element and the radiation system so that the sensor system receives radiation from a central portion of the optical element.3. The apparatus of claim 1 , wherein the optical element comprises a convex lens.4. The apparatus of claim 1 , wherein the radiation system comprises a radiation source operable to produce the input radiation and radiation system optics arranged between the radiation source and the optical element.5. The apparatus of claim 1 , wherein the sensor ...

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12-02-2015 дата публикации

Enzymatic sensors and methods for their preparation and use

Номер: US20150044710A1
Принадлежит: University of Calcutta

Disclosed herein are methods, compositions and devices for detecting oxygen in various samples such as environmental and biological samples.

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