Многофункциональное портативное устройство для дистанционного контроля и мониторинга физиологических данных пациента в домашних условиях

Изобретение относится к медицинской технике и предназначено для измерений жизненно важных показателей состояния здоровья пациентов в домашних условиях. Многофункциональное портативное устройство для дистанционного контроля и мониторинга физиологических данных пациента в домашних условиях состоит из двух частей, горизонтальной части и откидной крышки, при этом в откидную крышку устройства встроены жк-монитор, отображающий параметры устройства, и web-камера с микрофоном, а в горизонтальную часть устройства интегрированы выдвижные карманы и лотки для измерения, сбора, обработки физиологических данных пациента. Причем сбор физиологических данных пациент проводит самостоятельно без помощи медицинского работника, а электрокардиография выполняется за счет изготовленного трафарета, выполненного из полипропилена, в котором вырезаны отверстия, над каждым из которых располагается числовой и цветовой маркер. При этом запись и передача ЭКГ осуществляется автоматически с момента открытия выдвижного кармана ...

Medical sensor

Systems and methids of QT interval analysis

Disclosed systems and method receive electrocardiogram (EKG) data of a subject. The EKG data comprises a record of at least a full beat of the subject. The EKG data is input into a machine learning model to generate an output. The output can include a segmentation of the full beat or a measurement of a QT interval of the subject.

Semiconductor package, article and method

The sensor semiconductor package 100 comprises a die pad 101, external connection terminals 103, semiconductor chip 105 and sealing member 113. The semiconductor chip 105 is located on a top surface of the die pad 101 and is electrically connected to the external connection terminals 103 and the die pad 101. The sealing member covers the die pad 101, the external connection terminals103 and the semiconductor chip 105 and exposes an outer terminal115 of each of the external connection terminals 103 and an outer contact surface117 of the die pad 101. The outer contact surface117 of the die pad101 forms an electrode 117 of the sensor semiconductor package 100. The sensor may be used for inertial measurement by incorporating an accelerometer or gyroscope, for example. Also the package may be used for biosensor applications (eg ECG, EMG) and incorporated into textile material 201 to be worn by a user proximate to their skin 300.

Semiconductor package, article and method

SINGLE ARM ECG MONITOR

A system for measuring the ECG of a user by having at least two sensors, all of which are attached to only one peripheral of the user. The system may also comprise a controller for determining ECG signals from the data received from the sensors. The system may be in the form of a wearable band on which the sensors and the controller are disposed. The sensors may be capacitive sensors, electrically coupled capacitive sensors, or electrodes. The sensors may be attached to one arm of a user. The sensors may be disposed on the inside and outside of the arm away from each other at the same axial position on the arm. The sensors may be disposed at axially different positions on the arm, for example, one at the wrist and the other at the shoulder of the user.

Suction electrode for application to the skin of a patient.

Eine Saugelektrode weist ein Basisteil (A) und einen Elektrodenkörper (B) auf, wobei der Elektrodenkörper (B) lösbar und luftdicht mit dem Basisteil (A) verbindbar ist. Der Elektrodenkörper (B) weist einen Saugkopf (4) und eine Elektrode (5) mit einer Elektrodenplatte (50) auf. Eine umlaufende äussere Dichtlippe (41) des Saugkopfes (4) dient zur Auflage auf einer Haut eines Patienten und eine umlaufende innere Dichtlippe (42) liegt an einer umlaufenden seitlichen Mantelfläche der Elektrodenplatte (50) dichtend an. Die innere Dichtlippe (42) gibt mittels axialen Drucks auf das Basisteil (A) die Mantelfläche mindestens teilweise frei, um eine Saugverbindung zwischen dem Innenraum (49) des Saugkopfes (4) und dem Basisteil (A) zu schaffen. Die erfindungsgemässe Saugelektrode weist ein Einwegteil auf, ist kostengünstig herstellbar und trotzdem qualitativ hochwertig im Gebrauch.

SYSTEM AND METHOD FOR QPSK DATA TRANSCEIVER APPLIED TO LOW POWER BIOMEDICAL IMPLANT DEVICE

Underwater measurement of bioelectric signals

A system and method of measuring bioelectric signals generated by an individual, inclusive of humans or other living organisms, comprises a plurality of sensors, at least one of the plurality of sensors being constituted by a capacitive-type sensor. Sensor has an associated insulated layer of material preventing the conduction of direct current between an electrode and individual, wherein a bioelectric signal of individual can be measured underwater.

Apparatus and methods for removing a large-signal voltage offset from a biomedical signal

Apparatus and methods remove a voltage offset from an electrical signal, specifically a biomedical signal. A signal is received at a first operational amplifier and is amplified by a gain. An amplitude of the signal is monitored, by a first pair of diode stages coupled to an output of the first operational amplifier, for the voltage offset. The amplitude of the signal is then attenuated by the first pair of diode stages and a plurality of timing banks. The attenuating includes limiting charging, by the first pair of diode stages, of the plurality of timing banks and setting a time constant based on the charging. The attenuating removes the voltage offset persisting at a threshold for a duration of at least the time constant. Saturation of the signal is limited to a saturation recovery time while the saturated signal is gradually pulled into monitoring range over the saturation recovery time.

APPARATUS AND METHOD FOR NON-INVASIVELY MEASURING BLOOD PRESSURE OF MAMMAL SUBJECT

Then the MCU determines the blood pressure P from the PWV, where P is a parabolic function of the PWV.

Bra, Garment and Method

A bra (1) for use in measuring biosignals of a wearer, a garment (120) comprising such a bra (1) and a method of manufacture. The bra (1) comprises a front region (2); a rear region (4); a 5 pair of side regions (6, 8) extending between the front region (2) and the rear region (4); and a measuring apparatus (100) comprising a sensor assembly (104) comprising one or more electrodes (106, 108, 110). One of the side regions (6, 8) comprises a mounting arrangement for removably receiving an electronics module (102) of the measuring apparatus (100). The electronics module (102) is arranged to receive measurement signals from the one or more 10 electrodes (106, 108, 110). The electronics module (102) may be located in a pocket (54) provided on or in one of the side regions (6, 8), optionally a hidden pocket.

GARMENT

The purpose of the present invention is to provide a biological information measurement garment having excellent peel strength between a clothing fabric including spun yarns and an electrode. The garment includes a clothing fabric; and an electrode formed on a skin-side surface of the clothing fabric, the clothing fabric including spun yarns present on the skin-side surface on which the electrode is formed, and each of the spun yarns satisfying a following formula (1): F/(0.8673/√Ne)<4500 (1), wherein F represents a number of fluffy fibers (fibers/10 m) having a length of 1 mm or more, per 10 m of the spun yarn, and Ne represents an English yarn count of the spun yarn.

DATA ACQUISITION DEVICE AND BIOSENSOR

A data acquisition device includes an integrated circuit and an information processor. The integrated circuit has a first terminal for receiving a master/slave switching signal upon start of data acquisition, an ADC for converting analog input data to digital data, and an output terminal for outputting the digital data. The information processor generates the master/slave switching signal, and has a second terminal connected to the first terminal and for outputting the master/slave switching signal, and an input terminal connected to the output terminal and for receiving the digital data. The information processor operates in the master mode when the integrated circuit operates in the slave mode. The information processor operates in the slave when the integrated circuit operates in the master mode. The integrated circuit outputs the digital data when operating in the master mode according to the master/slave switching signal.

Wearable Devices with Perspiration Measurement Capabilities

Embodiments are directed to devices, systems and methods for determining a perspiration metric of a user. In some embodiments, a device may include a perspiration sensor having first and second electrodes positioned on a skin-facing exterior surface of the device. Capacitance circuitry may measure a capacitance between the electrodes, which may be used to calculate the perspiration metric. In some embodiments, the device defines a cavity such that one or both of the electrodes extend at least partially into the cavity. Other embodiments include a second perspiration sensor, and measurements from the second perspiration sensor may be used in calculating the perspiration metric.

REDUCING TEMPORAL MOTION ARTIFACTS

REAL-TIME MULTI-MONITORING APPARATUS AND METHOD USING ELECTROCARDIOGRAPHS

Described is a real-time multi-monitoring method using an electrocardiograph and a real-time multi-monitoring method using an electrocardiograph may include connecting at least one of a plurality of electrocardiographs via a network; receiving identification information of a user which is linked to an electrocardiograph to identify the plurality of electrocardiographs; collecting biometric signal information from the plurality of electrocardiographs; and analyzing a health condition in consideration of predetermined reference information which is defined for each user and biometric signal information collected from each of the plurality of electrocardiographs.

Нательное мобильное устройство дистанционного контроля множественных физиологических показателей состояния здоровья

Изобретение относится к медицинской технике. Нательное мобильное устройство дистанционного контроля физиологических показателей состояния здоровья содержит пластиковый корпус, на поверхности которого размещены фотоплетизмографический (ФПГ) сенсор и выходы светодиодных индикаторов отображения режимов и рабочих состояний. На верхней поверхности корпуса расположены функциональная тактильная кнопка тревожного оповещения «Симптом» и кнопка включения-выключения питания. На нижней поверхности корпуса на расстоянии 45 мм друг от друга расположены два кнопочных разъема для подключения внешних гибких ЭКГ-электродов, которые снабжены клеящимся к телу слоем и выполнены с пространственным разнесением зон съема биосигнала и электрического подключения. Между разъемами размещен дополнительный сенсор регистрации физиологических показателей здоровья в виде акустического датчика или в виде датчика кожно-гальванической реакции. На нижней боковой стенке корпуса расположен многоконтактный герметичный разъем ...

SYSTEMS AND METHODS OF QT INTERVAL ANALYSIS

Patch-based physiological sensor

The invention provides a body-worn patch sensor for simultaneously measuring a blood pressure (BP), pulse oximetry (SpO2), and other vital signs and hemodynamic parameters from a patient. The patch sensor features a sensing portion having a flexible housing that is worn entirely on the patient's chest and encloses a battery, wireless transmitter, and all the sensor's sensing and electronic components. It measures electrocardiogram (ECG), impedance plethysmogram (IPG), photoplethysmogram (PPG), and phonocardiogram (PCG) waveforms, and collectively processes these to determine the vital signs and hemodynamic parameters. The sensor that measures PPG waveforms also includes a heating element to increase perfusion of tissue on the chest.

ELASTIC PRINTED CONDUCTORS

The development of stretchable, mechanically and electrically robust interconnects by printing an elastic, silver-based composite ink onto stretchable fabric. Such interconnects can have conductivity of 3000 4000 S/cm and are durable under cyclic stretching. In serpentine shape, the fabric-based conductor is enhanced in electrical durability. Resistance increases only ~5 times when cyclically stretched over a thousand times from zero to 30% strain at a rate of 4% strain per second due to the ink permeating the textile structure. The textile fibers are 'wetted' with composite ink to form a conductive, stretchable cladding of the silver particles. The e-textile can realize a fully printed, double-sided electronic system of sensor-textile-interconnect integration. The double-sided e-textile can be used for a surface electromyography (sEMG) system to monitor muscles activities, an electroencephalography (EEG) system to record brain waves, and the like.

열전 발전기를 포함하는 생체 신호 감지 장치

... 본 발명의 기술적 사상은, 링(Ring) 형상을 가지는 몸체; 상기 몸체 내부에 배치되며, 배터리에 전기적으로 연결되도록 구성된 열전 셀을 포함하도록 구성된 열전 발전기; 및 상기 열전 발전기의 동작을 제어하도록 구성된 제어부;를 포함하는 것을 특징으로 하고, 상기 몸체는, 상기 몸체의 내측면에 배치되는 제1 전극 및 상기 몸체의 외측면에 배치되는 제2 전극을 포함하고, 상기 제어부는 상기 제1 전극 및 상기 제2 전극 각각의 신체 접촉 여부 또는 각각의 온도에 기초하여 상기 열전 발전기를 제어하도록 구성되고, 및 상기 제어부는 상기 배터리의 충전 전압 및 충전 전류에 따라, 상기 열전 발전기에서 생성된 기전력을 변환하도록 구성되는 것을 특징으로 하는 열전 발전기를 포함하는 생체 신호 감지 장치를 제공한다.

SYSTEM AND METHOD FOR INFORMING OF ATTACHMENT POSITIONS OF ECG ELECTRODES

Provided are a system and method for informing of attachment positions of electrocardiogram (ECG) electrodes to improve the quality of ECG data. The system includes a judgment indicator extractor configured to extract a plurality of judgment indicator values from ECG data obtained through ECG electrodes, a reference value setter configured to, in a user-specific reference value setting mode, collect the judgment indicator values for a plurality of pieces of ECG data extracted by the judgment indicator extractor and set user-specific reference values for each judgment indicator, a similarity determiner configured to, in an ECG measurement mode, determine similarity by comparing a plurality of judgment indicator values extracted by the judgment indicator extractor with the user-specific reference values, and an electrode attachment position guide configured to inform a user of attachment positions of the ECG electrodes according to a similarity determination result of each of the judgment ...

PATIENT MONITORING SYSTEM

Embodiments herein disclose a patient monitoring system (100). The patient monitoring system (100) includes an ECG electrode (110), comprises multiple built-in sensors (110e), configured to measure patient information and stream the patient information. Further, a patient monitor (120) is configured to receive the streamed patient information from the ECG electrode (110) and display the streamed patient information. The patient monitoring system (100) is primarily targeted for patients in ICU who are at risk of acquiring pressure ulcers or VAP or Sepsis. A wearable device in the form factor of the ECG electrode with multiple built-in sensors to monitor patient bed position, head up elevation angle, skin temperature, heart rate and respiratory rate. Information from smart ECG electrode is relayed either through a wired or wireless medium and displayed through the standard patient monitor or using a gateway device.

ACQUISITION GUIDANCE FOR ELECTROANATOMICAL MAPPING

A system for electrophysiological measurement includes a probe having a distal end configured for insertion into a body cavity of a patient and including electrodes that are disposed along the distal end and are configured to contact tissue at multiple locations within the body cavity while an operator manipulates the probe. A processor is configured to acquire electrophysiological (EP) signals from the electrodes within the body cavity, to apply one or more filtering criteria to the EP signals in order to select a first set of the EP signals while rejecting a second set of the EP signals, to render an image to a display based on the EP signals in the first set, and to output to the operator an indication of a reason for the rejection of the EP signals in the second set.

НОСИМОЕ УСТРОЙСТВО ДЛЯ НЕПРЕРЫВНОГО КАРДИОМОНИТОРИНГА

Полезная модель относится к медицинской технике и может быть использована в системах длительного мониторинга и диагностики электрокардиограммы (ЭКГ) человека в условиях его продолжительного ношения на теле. Носимое устройство для непрерывного кардиомониторинга содержит кардиорегистратор, сменный блок аккумуляторного источника питания и емкостные датчики, подключаемые эластичными межсоединениями к кардиорегистратору. Емкостные датчики фиксируют биопотенциалы с поверхности кожи человека, затем проводят их фильтрацию от внешних шумов и усиление. Через эластичные межсоединения аналоговые сигналы передаются на кардиорегистратор, где происходит их преобразование в цифровой вид, фильтрация, обработка и запись на внешнюю энергонезависимую память с возможностью беспроводной передачи на мобильные устройства в режиме реального времени. Параллельно регистрируется двигательная активность пациента с помощью встроенного акселерометра. Таким образом, предложенная полезная модель повышает удобство пациента ...

КОМБИНИРОВАННЫЙ ЭЛЕКТРОД ЭКГ-МЕТАБОЛИТЫ

Техническое решение относится к микроэлектронике и может быть использовано в медицинском приборостроении в технологии изготовления датчиков одновременной регистрации электрокардиограммы и метаболитов пота человека. Комбинированный электрод ЭКГ-метаболиты, имеющий диэлектрическое основание, электрод сравнения, вспомогательный электрод, два рабочих электрода, оба покрытые слоем берлинской лазури, отличающийся тем, что диэлектрическое основание выполнено из гибкого материала - полиимида, все электроды выполнены из медной фольги, покрытой серебром Ag, электрод сравнения дополнительно покрыт слоем хлорида серебра AgCl, первый рабочий электрод дополнительно покрыт энзимом лактатооксидазы, второй рабочий электрод дополнительно покрыт энзимом глюкозооксидазы, при этом электрод сравнения расположен на стороне электрода, прилегающей к телу человека, и является одновременно электродом для регистрации ЭКГ, вспомогательный электрод и рабочие электроды расположены на противоположной стороне электрода ...

СИСТЕМА, СПОСОБ И УСТРОЙСТВО ДЛЯ ЛЕЧЕНИЯ БРАДИАРИТМИЙ, ТАХИАРИТМИЙ И СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Группа изобретений относится к медицине, а именно к системе для мониторинга и лечения патологических состояний сердца млекопитающих, способу лечения патологий сердца и многокомпонентному кардиостимулятору. Система содержит кардиостимулятор, электрод с наконечником, связанный с электрической схемой кардиостимулятора, программное обеспечение для программирования схемы кардиостимулятора, а также приемники для обнаружения и передачи электрических сигналов от сердца, соответствующих его работе. Многокомпонентный кардиостимулятор содержит источник питания, схему управления, а также первую и вторую части. Первая часть содержит электрод для имплантации в сердце отдельно от второй части. Вторая часть содержит герметизированную внутри корпуса электрическую схему и имплантируется отдельно для соединения с первой частью. Вторая часть содержит гнездо, размер которого позволяет принимать в него конец электрода, когда вторая часть соединяется с первой. Электрический контакт гнезда электрически контактирует ...

Система и способ для безманжетного определения артериального давления

Изобретение относится к медицине, а именно к диагностике. Получают электрокардиограмму (ЭКГ) пользователя. Осуществляют обработку ЭКГ и определяют по крайней мере один R-пик. Причем обработка ЭКГ включает обработку кардиоциклов для снижения искусственных искажений типового кардиоцикла за счет выполнения следующих шагов. Фильтруют сигнал ЭКГ цифровым фильтром. Осуществляют локализацию R-зубцов алгоритмом Пана-Томпкинса.Вырезают временное окно, соответствующее кардиоциклу, и центрируют кардиоцикл относительно среднего кардиоцикла для выравнивания изоэлектрической линии электрокардиосигнала без утраты информации об амплитудных параметрах кардиоцикла. Строят временный усредненный кардиоцикл по ансамблю из всех кардиоциклов. Осуществляют контроль самоподобия всех кардиоциклов путем их сравнения с временным усредненным кардиоциклом и при выявленном несовпадении текущий кардиоцикл удаляют из усредняющей выборки. Затем осуществляют усреднение по ансамблю прошедших контроль кардиоциклов, формируя ...

Underwater measurement of bioelectric signals

A system (2) and method of measuring bioelectric signals generated by an individual (5), inclusive of humans or other living organisms, comprises a plurality of sensors (17, 18, 301-317), at least one of the plurality of sensors (17, 18, 301-317) being constituted by a capacitive-type sensor ( 17). Sensor (17) has an associated insulated layer of material (155) preventing the conduction of direct current between an electrode (150) and individual (5), wherein a bioelectric signal of individual (5) can be measured underwater.

Device and method for providing feedback on breathing rate

Devices and methods for providing feedback on breathing rate comprise a sensor interface 101 configured to receive an electrocardiogram ECG signal; an ECG analysis unit 102 configured to obtain a breathing rate from the received ECG signal; a feedback output mechanism for providing feedback; and a feedback generator 103 configured to obtain an optimal breathing rate in accordance with a desired outcome and one or more heart rate and/or breathing rate characteristics detected from the ECG signal. The feedback generator is further configured to control the feedback output mechanism to output feedback synchronised to the optimal breathing rate, and subsequently adapt the feedback in accordance with changes in the one or more heart rate and/or breathing rate characteristics while the feedback is being outputted.

Device and method for providing feedback on breathing rate.

Device and method for providing feedback on breathing rate

Electrocardiogram measurement method and system using wearable device

IMPLANTABLE MEDICAL SYSTEM FOR MEASURING A PHYSIOLOGICAL PARAMETER

An implantable medical system includes at least four electrodes forming a dipole emitter and a dipole receiver which is distinct from the dipole emitter. The system is configured to recover physiological mechanical information by way of the two dipoles, by analyzing a received and processed electrical signal, wherein the amplitude has been modulated in accordance with the electrical properties of the propagation medium between the dipole emitter and the dipole receiver. Thus, a parameter which is representative of a pre-ejection period may be extracted from the attenuation of the voltage between the dipole emitter and the dipole receiver by taking an electrocardiogram or an electrogram into account.

Device and method for providing feedback on breathing rate

Devices and methods for providing feedback on breathing rate are disclosed. The device comprises: a sensor interface configured to receive an electrocardiogram ECG signal; an ECG analysis unit configured to obtain a breathing rate from the received ECG signal; a feedback output mechanism for providing feedback; and a feedback generator configured to obtain an optimal breathing rate in accordance with a desired outcome and one or more heart rate and/or breathing rate characteristics detected from the ECG signal. The feedback generator is further configured to control the feedback output mechanism to output feedback synchronized to the optimal breathing rate, and subsequently adapt the feedback in accordance with changes in the one or more heart rate and/or breathing rate characteristics while the feedback is being outputted.

MULTIFUNCTIONAL ELECTROPHYSIOLOGICAL MONITORING SYSTEM

A multifunctional electrophysiological monitoring system includes a body-worn tattoo sensor pattern and an electrophysiological monitor connected to sensor contacts of the pattern. A dongle performs a supplemental function, such as acquiring information about a physiological parameter. The dongle interfaces with a port of the monitor. The monitor interfaces wirelessly with a mobile communication device and a monitor network. In an embodiment, the monitor transmits ECG, EMG, or EEG signals. The dongle may provide further monitoring such as body temperature or blood oxygen saturation level. In some embodiments a plurality of dongles may be connected to the monitor.

Wearable assembly comprising a wearable article and an electronics module

The wearable article (200) comprises a sensing component. The electronics module (100) is removably coupled to the wearable article (200). The electronics module comprises a housing and a processor disposed within the housing (101). An interface element (121, 123) interfaces with the sensing component so as to receive signals from the sensing component and provide the same to the processor. A sensor (105) is disposed within the housing (101). The sensor (105) monitors a property of the environment external the electronics module (100) through the housing (101). The housing (101) is constructed such that the sensor (105) has line of sight through the housing (101).

MRI COMPATIBLE NODE-BASED ECG MEASUREMENT NETWORK

An ECG measurement node for a patient electrode is provided, including an electrode interface and ECG processing circuitry electrically coupled to the electrode interface. The electrode interface is electrically and removably coupled to the patient electrode. The patient electrode is affixed to a patient. The ECG processing circuitry is configured to generate an ECG signal. The ECG measurement node further includes a transceiver configured to wirelessly transmit the ECG signal or a fiber optic interface configured to transmit the ECG signal via a fiber optic link. An ECG measurement network is also provided, including a first and second ECG measurement node. The first ECG measurement node and the second ECG measurement node are communicatively coupled to a patient monitor. The ECG measurement network may further include a central access point communicatively coupled to the first ECG measurement node, the second ECG measurement node, and the patient monitor.

Электрод для проведения электрокардиографии у животных

Полезная модель относится к области ветеринарной медицины, в частности для проведения электрокардиографии у животных. Электрод для проведения электрокардиографии у животных включает две прямоугольные изогнутые пластины из электропроводного материала, скрепленные между собой в виде «прищепки» стальной пружиной. С внутренней стороны пластины покрыты шипованной электропроводной резиной, шипы которой, контактируя с кожным покровом конечности животного, обеспечивают проведение электропотенциалов на электрокардиограф. Использование заявляемого электрода снижает трудоемкость и значительно сокращает время на проведение электрокардиографии у животных.

СКРИНИНГОВОЕ УСТРОЙСТВО ДЛЯ ЗАПИСИ ФИЗИОЛОГИЧЕСКИХ ДАННЫХ ВО ВРЕМЯ СНА

Изобретение относится к медицинской технике. Устройство для регистрации нарушений процесса внешнего дыхания пациентов во время сна содержит электроды Холтеровского мониторирования ЭКГ, корпус, внутри которого смонтированы аккумуляторная батарея, акселерометр, микрофон и блок управления. На корпусе расположен разъём для питания и передачи данных. С блоком управления соединены акселерометр и микрофон, выполненные с возможностью сбора данных о движении грудной клетки, параметров положения тела во время сна, силы храпа, данных аускультации лёгких и сердца. Разъёмы крепления электродов для Холтеровского мониторирования ЭКГ смонтированы на задней части корпуса устройства. Блок управления выполнен с возможностью фильтрации и обработки информации, собранной при помощи микрофона. Блок управления содержит внутреннюю память устройства для хранения обработанной информации. Акселерометр выполнен с возможностью измерения показателей движения грудной клетки и тела пациента по трём осям координат с фиксацией ...

Methods and apparatus for transdermal measurement of impedance

Intelligentes Kleidungsstück mit Kontaktelektrode

Um die Anordnung einer Kontaktelektrode (11) auf einem intelligenten Kleidungstück (10) unter Herstellung einer elektrischen Verbindung auf einfache und prozesssichere Weise zu ermöglichen, ist eine Elektrodenanordnung (1) mit einem Elektrodenträger (2) in Form eines flächigen Materialstücks aus einem textilen oder nicht textilen Material vorgesehen, wobei der Elektrodenträger (2) auf einer Seite mit einer elektrisch leitfähigen Elektrode (4) verbunden ist und an der gegenüberliegenden Seite des Elektrodenträgers (2) ein elektrisch leitfähiger Thermoklebstoff (3) anliegt, über den die Elektrodenanordnung (1) auf einem intelligenten Kleidungsstück (10) aufgebracht werden kann, wobei die Elektrode (4) und der Thermoklebstoff (3) für eine elektrische Verbindung elektrisch leitend verbunden sind.

Electrode and uses thereof

The present invention relates to an electrode (1) comprising: - at least one reservoir (11) comprising a peripheral wall (111) made of a foam material, wherein said reservoir (11) is filled with a viscous electrolytic paste (12); - at least one plate (13) comprising a conductor material, wherein said plate (13) is in contact with the electrolytic paste (12) and configured to conduct electrical signals to a recording device; - at least one fastener (14); and wherein the at least one reservoir (11) comprises a hole (113) configured to release the electrolytic paste (12) under pressure applied on the electrode (1). The present invention also relates to the use of said electrode (1) and a process for the implementation of an electrode (1).

ELECTRODE AND USES THEREOF

The present invention relates to an electrode (1) comprising: - at least one reservoir (11) comprising a peripheral wall (111) made of a foam material, wherein said reservoir (11) is filled with a viscous electrolytic paste (12); - at least one plate (13) comprising a conductor material, wherein said plate (13) is in contact with the electrolytic paste (12) and configured to conduct electrical signals to a recording device; - at least one fastener (14); and wherein the at least one reservoir (11) comprises a hole (113) configured to release the electrolytic paste (12) under pressure applied on the electrode (1). The present invention also relates to the use of said electrode (1) and a process for the implementation of an electrode (1).

Clock Synchronization Method Between Bio-signal Sensors Using Human Body Communication

ELECTROCARDIOGRAM DETECTION MODULE WITH ENLARGED AREA OF CONTACT AND IMPROVED DURABILITY FOR MOUNTING ON STEERING WHEEL, AND STEERING WHEEL

An electrocardiogram (ECG) detection module with longer service life includes an ECG detection device, the ECG detection device includes a conductive adhesive film, and a support member. Bioelectric signals of both hands of a driver/user are obtained by the conductive adhesive film arranged on a surface of the steering wheel. The support member is elastic and arranged between the steering wheel and the conductive adhesive film. The support member causes the conductive adhesive film to adhere to the contours of the steering wheel, and the support member further increases and enlarges area of contact between the conductive adhesive film and the hand of the user. The present disclosure also provides a steering wheel incorporating the detection module.

BODY ELECTRODE FOR RECORDING ELECTRO-PHYSIOLOGICAL SIGNALS

The present invention relates to a body electrode for recording electrophysiological signals from a body. In particular the invention relates to a body electrode (100; 200; 400) comprising a transducer element (105; 205) shielded by a layered shield structure (120; 220; 420) and a skin contact element (115; 115′; 115″; 215) providing a contactbetween the layered shield structure (120; 220; 420) and the skin (101; 201) of the body. The layered shield structure (120; 220; 420) comprises at least an electrically conducting layer (113; 213) and an electrostatic dissipative layer (112; 212; 412). The skin contact element (115; 115′; 115″; 215) comprises an electrically onducting layer (113; 213) and an ion conducting layer (114; 214) and is with regards to the electrical potential characteristics matched with a transducer element (105; 205).

METHOD, DEVICE AND SYSTEM FOR WIRELESS BIOPOTENTIAL MEASUREMENT

A system, method and sensor device for providing an Electrocardiogram (ECG) and arrhythmia analysis. The sensor device being adapted for attaching to the body, the sensor unit comprising: a reusable electronic device comprising a signal processor and transmitter part, and a patch including at least one measuring electrode for measuring a biopotential.

Способ визуализации поверхности грудной клетки пациента и определения координат ЭКГ электродов при неинвазивном электрофизиологическом картировании сердца

Изобретение относится к медицине, а именно к визуализации поверхности грудной клетки пациента и определению координат ЭКГ электродов при неинвазивном электрофизиологическом картировании сердца. Предложен способ, включающий: формирование трехмерной модели сердца; систему ЭКГ электродов, накладываемых по всей окружности грудной клетки пациента; определение положения ЭКГ электродов по отношению к поверхности сердца; формируют трехмерную модель внутренней поверхности грудной клетки пациента; при этом трехмерную модель сердца и внутренней поверхности грудной клетки пациента формируют на основе данных процедур КТ или МРТ, которые выполняют без системы ЭКГ электродов или на основе данных процедур КТ или МРТ грудной клетки пациента, которые выполнены ранее; трехмерную модель поверхности грудной клетки пациента 360 градусов с системой ЭКГ электродов, накладываемых по всей окружности грудной клетки пациента, формируют на основе данных трехмерного фотосканирования поверхности грудной клетки пациента ...

Способ диагностики патологических состояний и удаленного мониторинга пациентов и электронная медицинская станция для его осуществления

Группа изобретений относится к медицине, а именно к способу диагностики патологических состояний и удаленного мониторинга пациентов и электронной медицинской станции для его осуществления. При этом выполняют сбор анамнеза у пациента методом интерактивного опроса, изучение клинико-лабораторных и инструментальных данных пациента, их анализ и постановку диагноза в соответствии с процентом выявленных симптомов. Анализ выполняют с применением шкал, содержащих симптомы патологических состояний, путем суммирования количества симптомов, выявленных у конкретного пациента, и установления их процентного отношения к общему числу симптомов для каждого патологического состояния. Во время интерактивного опроса определяют частоту моргания глаз пациента. Если частота моргания глаз соответствует диапазону 10-20 в минуту или более 35 в минуту, то количество симптомов патологического состояния для каждой диагностической шкалы увеличивают на единицу. Если частота моргания глаз менее 10 в минуту, то количество ...

Способ лечения пациентов с лекарственно чувствительным туберкулезом органов дыхания и с хроническим заболеванием почек

Изобретение относится к медицине, в частности к фтизиатрии, и может быть использовано при лечении пациентов с лекарственно чувствительным туберкулезом органов дыхания с хроническим заболеванием почек 5 стадии без бактериовыделения. Перед началом лечения проводят необходимые исследования, после чего пациентов в зависимости от степени распространения туберкулезного процесса, вида заместительной почечной терапии, а также наличия коморбидной патологии делят на 2 группы. Во время лечения каждая группа получает химиотерапию с четырех- и трехкомпонентной фазами и противотуберкулезные препараты, обусловленные видом заместительной почечной терапии. Изобретение позволяет выбрать оптимальную стратегию лечения, обеспечивающую эффективный результат при различных по тяжести туберкулезных процессах. 2 з.п. ф-лы, 5 ил., 4 пр.

MESSVORRICHTUNG

Eine Messvorrichtung gemäß einem Gesichtspunkt schließt einen Riemenabschnitt, konfiguriert, um um eine Zielmessstelle eines Benutzers herum gewickelt zu werden, eine Elektrokardiogrammmesseinheit, in dem Riemenabschnitt bereitgestellt und konfiguriert, um einen Elektrokardiogrammmesswert des Benutzers zu messen, eine Blutdruckmesseinheit, in dem Riemenabschnitt bereitgestellt und konfiguriert, um Blutdruck des Benutzers zu messen, eine Messungsendedetektionseinheit, konfiguriert, um ein Ende der Elektrokardiogrammmessung durch die Elektrokardiogrammmesseinheit zu detektieren, und eine Blutdruckmessungssteuereinheit ein, konfiguriert, um Blutdruckmessung durch die Blutdruckmesseinheit als Reaktion auf die Messungsendedetektionseinheit, die das Ende der Elektrokardiogrammmessung detektiert hat, zu beginnen.

스마트링 조립 장치

... 본 발명은 스마트링 조립 장치에 관한 것으로, 보다 상세하게는 생체신호를 측정하는 스마트링에 포함된 부품의 조립에 사용될 수 있는 스마트링 조립 장치에 관한 것이다.

Wearable Health Device System with Automatic Referencing of Seismocardiography Signals

A wearable health device system includes a housing configured to be worn by a subject, and a sensor assembly with at least two accelerometers which sense acceleration along non-parallel axes. A processor operably connected to the sensor assembly and a memory executes program instructions in the memory to obtain SCG template data from the accelerometers and divide the obtained SCG template data into at least one cardiac cycle segment by converting the SCG template data into polar coordinate SCG template data or spherical coordinate SCG template data. At least one reference cardiac event is identified in the SCG template data using the converted SCG template data, and the SCG template data is divided into at least one cardiac cycle segment based upon the referenced cardiac event.

Smart wristband for multiparameter physiological monitoring

An ergonomically designed smart wristband for clinical-grade multiparameter monitoring is disclosed. The smart wristband incorporates multiple sensors including custom-designed reflective arterial pulse sensors, a thermopile sensor, and electrocardiogram (ECG) electrodes. When the smart wristband is worn on the wrist, the biosensors contact the skin. The smart wristband may tether wirelessly to a mobile or any other computing device to continuously acquire and stream information like arterial pulse waveform and temperature data. Algorithms running on the computing device or onboard microprocessor analyze the acquired data to report parameters like blood pressure, body temperature, respiration, and blood oxygen. The device can also operate in a fully-standalone mode to accomplish continuous multiparameter physiological monitoring, analysis, and reporting. Whenever the user touches an electrode on the device with a finger of the other hand, an ECG signal is additionally acquired for monitoring ...

CARDIAC CONDUCTION SYSTEM EVALUATION

PREMATURE BEAT DETECTION METHOD, AND ELECTRONIC DEVICE THEREFOR AND MEDIUM

This application relates to the field of information processing technologies, and discloses a premature beat detection method, an electronic device, and a medium. The premature beat detection method in this application includes: performing premature beat detection on a user by using a premature beat detection function; determining a premature beat type of the user by using a premature beat type determining function when detecting that the user has a premature beat by using the premature beat detection function, and calculating premature beat load of the user based on detection data obtained by the premature beat detection function; and reminding the user of a premature beat risk when the calculated premature beat load is greater than a premature beat load threshold corresponding to the premature beat type determined by the premature beat type determining function. A premature beat detection technology in this application avoids a disadvantage that a single detection function of an electronic ...

КОМБИНИРОВАННЫЙ ЭЛЕКТРОД ЭКГ-ТЕМПЕРАТУРА

Полезная модель относится к микроэлектронике и может быть использована в медицинском приборостроении в технологии изготовления датчиков одновременной регистрации электрокардиосигнала и температуры тела человека. Комбинированный электрод ЭКГ-температура, имеющий многослойную структуру, сформированную из множества слоев с диэлектрическим основанием с нанесенной резистивной решеткой, межслойные проводящие соединения для последовательного соединения всех резистивных решеток, терминальные контакты, сформированные по концам последовательно соединенных резистивных решеток, отличающийся тем, что диэлектрические основания всех слоев выполнены из гибкого материала - полиимида, на резистивную решетку нижнего наружного слоя нанесен слой Ag/AgCl, на резистивную решетку верхнего наружного слоя нанесен слой защитной покрывной пленки. С помощью предлагаемого комбинированного электрода ЭКГ-температура возможна регистрация любых электрических биосигналов с кожи человека (ЭКГ, электроэнцефалограмма, миограмма ...

Способ исследования возбудимости миокарда путем электрокардиографии

Изобретение относится к области физиологии и медицины. Регистрируют электрокардиограмму (ЭКГ) во II отведении, в течение 1 минуты: в контроле - в положении обследуемых сидя (К) и в опыте - после физической нагрузки, в качестве которой используют пробу Мартине (О). При этом на ЭКГ учитывают по 50 кардиоциклов в контроле и опыте и на полученных ЭКГ измеряют длительности интервала PQ и сегмента TP в секундах, на основании чего исследуют возбудимость миокарда (ВМ) по оригинальной формуле. Способ расширяет арсенал средств для исследования возбудимости миокарда, а также позволяет упростить определение возбудимости миокарда. 2 пр.

УСТРОЙСТВО ДЛЯ МОНИТОРИНГА СОСТОЯНИЯ И ФИЗИЧЕСКОЙ РАБОТОСПОСОБНОСТИ ПОЛЬЗОВАТЕЛЯ ЭКЗОСКЕЛЕТА ВЕРХНИХ КОНЕЧНОСТЕЙ

Изобретение относится к области медицины труда, а именно - к средствам испытаний экзоскелетов верхних конечностей. Предложеное устройство для мониторинга состояния и физической работоспособности пользователя экзоскелета верхних конечностей состоит из корпуса, выполненного в форме прямоугольного параллелепипеда со скругленными углами и оборудованного креплением к одежде пользователя, внутри которого расположены: аккумуляторный блок питания, соединенный с разъемом для подзарядки от сети электропитания, выполненным заподлицо с поверхностью корпуса, индикатор исправности устройства, выполненный заподлицо с поверхностью корпуса, накопитель с энергонезависимой памятью, соединенный с разъемом для чтения и записи информации, выполненным заподлицо с поверхностью корпуса, блок беспроводного интерфейса и микропроцессор, причем: индикатор исправности устройства и микропроцессор подключены к аккумуляторному блоку питания, индикатор исправности устройства, накопитель с энергонезависимой памятью и блок ...

УСТРОЙСТВО ДЛЯ МОНИТОРИНГА СОСТОЯНИЯ И ФИЗИЧЕСКОЙ РАБОТОСПОСОБНОСТИ ПОЛЬЗОВАТЕЛЯ ЭКЗОСКЕЛЕТА НИЖНИХ КОНЕЧНОСТЕЙ

Изобретение относится к области медицины труда, а именно к средствам испытаний экзоскелетов нижних конечностей. Предложено устройство для мониторинга состояния и физической работоспособности пользователя экзоскелета нижних конечностей, которое состоит из корпуса, выполненного в форме прямоугольного параллелепипеда со скругленными углами и оборудованного креплением к одежде пользователя, внутри которого расположены: аккумуляторный блок питания, соединенный с разъемом для подзарядки от сети электропитания, выполненным заподлицо поверхности корпуса, индикатор исправности устройства, выполненный заподлицо поверхности корпуса, накопитель с энергонезависимой памятью, соединенный с разъемом для чтения и записи информации, выполненным заподлицо поверхности корпуса, блок беспроводного интерфейса, и микропроцессор, причем: индикатор исправности устройства и микропроцессор подключены к аккумуляторному блоку питания, индикатор исправности устройства, накопитель с энергонезависимой памятью и блок беспроводного ...

Methods and apparatus for transdermal measurement of impedance

The transdermal complex impedance of body tissue is non-invasively monitored by coupling at least two electrodes 19a,b to the skin of a subject, applying a potential to the electrodes 19 with a signal source 22 to reduce the electrical impedance of the stratum corneum and monitoring complex transdermal impedance AC signals corresponding to α and β dispersion spectra with a monitor 24. The measured AC signals may have a frequency less than 10kHz. The electrodes 19 may have a uniform electrical impedance similar in magnitude to that of the stratum corneum of human skin. The measured complex impedance may be used to detect biosignals such as EEG, ECG or electrodermal activity, or target substances such as blood sugar, blood alcohol or cholesterol. There may be an output 34 for providing data to an external device such as a computer or display. The apparatus 20 may be part of a wearable device (100, fig 7) such as a wristband (110, fig 7).

Vagus nerve stimulation system

... 1-1\l11teWOVe11\KlrortoibULL\ LJK lU3.592/b_1UULXA - 59 A vagus nerve stimulation system for stimulating a vagus nerve in a biological subject, the system including a clip configured to be attached to a tragus of the subject, the clip including opposing arms configured so that a distal end of the arms are biased towards each other and electrodes positioned proximate a distal end of the arms on opposing faces so that the electrodes are urged into engagement with opposing faces of the tragus and a signal generator electrically connected to the electrodes, the signal generator being configured to generate at least one therapy signal that is applied to the vagus nerve within the tragus via the electrodes, to thereby modulate the vagus nerve. Fig. 1B Fig. 1A 110 1222 112 132 Fig. 1B ...

SEPARATE PRINTED TRACES FOR ECG AND DEFIBRILLATION CIRCUITS

An electrode pad with a defibrillation circuit and a separate ECG tracing circuit. The electrode pad includes a foam base layer, first and second conductive layers, and a hydrogel layer. The foam base layer has a first side and the first conductive layer is centrally located on the base layer. The first conductive layer has a first circuit configured to provide a defibrillation current. The second conductive layer extends at least partially around the first conductive layer on the first side of the base layer. The second conductive layer has a separate second circuit configured to receive an electrical signal. The hydrogel layer covers the first and second conductive layers on the first side of the base layer. The electrode pad additionally includes an electrical connector attached to the first and second conductive layers. The electrical connector is configured for providing a voltage to the first and second conductive layers.

DETECTION CIRCUIT, ECG DETECTION APPARATUS, AND WEARABLE DEVICE

Some embodiments of the present disclosure relate to electronic technologies, and provide a detection circuit. According to embodiments of the present disclosure, the detection circuit includes a first load module, a second load module, a third load module, a first detection module, a second detection module, and an obtaining module. A first end of the first detection module is connected to a junction between a first detection electrode and the first load module, a second end of the first detection module is connected to the obtaining module, a first end of the second detection module is connected to a junction between a second detection electrode and the second load module, and a second end of the second detection module is connected to the obtaining module.

SYSTEM AND METHOD FOR SWITCHING THE DESIGNATION OF A BIOSIGNAL SENSOR

Adaptive biosignal systems and methods are disclosed for switching one or more designations of biosignal sensors for dynamic adaptation and optimization of one or more biosignal detection devices. A sensor designation cycle is executed for a plurality of biosignal sensors of a biosignal detection device, each of the plurality of biosignal sensors configured to collect biosignal data of a user, and each of the plurality of biosignal sensors having a designation defining an electrical sensor modality modifiable by a switch communicatively coupled to the biosignal detection device. The plurality of biosignal sensors comprises at least a first biosignal sensor, a second biosignal sensor, and a third biosignal sensor, wherein the first biosignal sensor is designated as a reference sensor, and wherein the second biosignal sensor is designated as a measurement sensor. The sensor designation cycle comprises various algorithms for switching designations of the various sensors.

Separate printed traces for ecg and defibrillation circuits

An electrode pad with a defibrillation circuit and a separate ECG tracing circuit. The electrode pad includes a foam base layer, first and second conductive layers, and a hydrogel layer. The foam base layer has a first side and the first conductive layer is centrally located on the base layer. The first conductive layer has a first circuit configured to provide a defibrillation current. The second conductive layer extends at least partially around the first conductive layer on the first side of the base layer. The second conductive layer has a separate second circuit configured to receive an electrical signal. The hydrogel layer covers the first and second conductive layers on the first side of the base layer. The electrode pad additionally includes an electrical connector attached to the first and second conductive layers. The electrical connector is configured for providing a voltage to the first and second conductive layers.

Vagus nerve stimulation system

H:\Interwoven\NRPortbl\DCC\LJR539276_l.DOCX - 12/8/20 - 59 A vagus nerve stimulation system for stimulating a vagus nerve in a biological subject, the system including a clip configured to be attached to a tragus of the subject, the clip including opposing arms configured so that a distal end of the arms are biased towards each other and electrodes positioned proximate a distal end of the arms on opposing faces so that the electrodes are urged into engagement with opposing faces of the tragus and a signal generator electrically connected to the electrodes, the signal generator being configured to generate at least one therapy signal that is applied to the vagus nerve within the tragus via the electrodes, to thereby modulate the vagus nerve. Fig. 1B ...

APPARATUS AND METHODS FOR REMOVING A LARGE-SIGNAL VOLTAGE OFFSET FROM A BIOMEDICAL SIGNAL

Apparatus and methods remove a voltage offset from an electrical signal, specifically a biomedical signal. A signal is received at a first operational amplifier and is amplified by a gain. An amplitude of the signal is monitored, by a first pair of diode stages coupled to an output of the first operational amplifier, for the voltage offset. The amplitude of the signal is then attenuated by the first pair of diode stages and a plurality of timing banks. The attenuating includes limiting charging, by the first pair of diode stages, of the plurality of timing banks and setting a time constant based on the charging. The attenuating removes the voltage offset persisting at a threshold for a duration of at least the time constant. Saturation of the signal is limited to a saturation recovery time while the saturated signal is gradually pulled into monitoring range over the saturation recovery time.

Electronic device for providing guide information

An electronic device and method are disclosed herein. The electronic device includes a housing, a first, second, third and fourth electrode coupled to the housing, a communication module, and a processor. The processor implements the method, including: detect a first signal using the first electrode and the fourth electrode, detect a second signal using the second electrode and the fourth electrode, detect a third signal using the third electrode and the fourth electrode, transmit the first signal, the second signal, and the third signal to an external electronic device via the communication module, and receive, from the external electronic device, via the communication module, data for generating guidance information to correct an attachment position of the electronic device, wherein the guidance information is generated based on: a first biological signal generated based on the first signal and the second signal, a second biological signal generated based on the second signal and the ...

METHODS AND SYSTEMS TO CONFIRM DEVICE CLASSIFIED ARRHYTHMIAS UTILIZING MACHINE LEARNING MODELS

A system and method for declaring arrhythmias in cardiac activity are provided. The system includes memory to store specific executable instructions and a machine learning (ML) model. One or more processors are configured to execute the specific executable instructions to obtain device classified arrhythmia (DCA) data sets generated by an implantable medical device (IMD) for corresponding candidate arrhythmias episodes declared by the IMD. The DCA data sets include cardiac activity (CA) signals for one or more beats sensed by the IMD and one or more device documented (DD) markers that are generated by the IMD. The system applies the ML model to the DCA data sets to identify a valid sub-set of the DCA data sets that correctly characterize the corresponding CA signals and to identify an invalid sub-set of the DCA data sets that incorrectly characterize the corresponding CA signals. The system includes a display configured to present information concerning at least one of the valid sub-set ...

DISPOSABLE ECG ELECTRODE TO PREVENT SHEDDING AND TEARING

CONTACTLESS ELECTRODE FOR SENSING PHYSIOLOGICAL ELECTRICAL ACTIVITY

Systems and apparatus for contactless measuring of biological electrical activity corresponding to an individual include an electrode capacitively coupled with a tissue surface of the individual and a high input impedance amplifier circuit for amplifying a sensing signal generated by the electrode. In some embodiments, the electrode comprises a sensing portion comprising a plurality of electrically conductive layers including a sensing layer, a guard layer and a grounding layer layered between electrically non-conductive insulating layers. Optionally, the sensing portion may also include an electrically conductive guard ring. The guard layer, guard ring and/or grounding layer may shield the sensing layer from external electromagnetic interference which may impinge on the sensing layer and/or maintain high input impedance of the high input impedance amplifier circuit. The high input impedance amplifier circuit may comprise an integrator circuit for biasing a high input impedance amplifier ...

SYSTEMS, METHODS, AND DEVICES FOR TREATING BRADYARRHYTHMIAS, TACHYARRHYTHMIAS AND HEART FAILURE

A method, system and device for monitoring and treating conditions of a mammalian heart, among which may include bradyarrhythmias, tachyarrhythmias and heart failure, the device being configured as a pacemaker that harvests energy as it implements the pacemaker functions to treat and monitor conditions of the heart. The pacemaker has a case, electrical circuitry sealed within the case, an electrode that is electrically coupled to the electrical circuitry, and embodiments may include a microelectromechanical system (MEMS) for harvesting and converting the kinematic energy of the heart into electrical energy. Embodiments provide receivers at locations of the heart which sense heart activity and are controlled with pacing circuitry to deliver electrical impulses at locations and time intervals to replicate the contractions of a normal functioning heart. Further embodiments provide a multi-part pacemaker where case-connectable electrode part may be implanted separately from the case part.

Vagus nerve stimulation system

H:\Interwoven\NRPortbl\DCC\LJR539276_l.DOCX - 12/8/20 - 59 A vagus nerve stimulation system for stimulating a vagus nerve in a biological subject, the system including a clip configured to be attached to a tragus of the subject, the clip including opposing arms configured so that a distal end of the arms are biased towards each other and electrodes positioned proximate a distal end of the arms on opposing faces so that the electrodes are urged into engagement with opposing faces of the tragus and a signal generator electrically connected to the electrodes, the signal generator being configured to generate at least one therapy signal that is applied to the vagus nerve within the tragus via the electrodes, to thereby modulate the vagus nerve. Fig. 1B ...

A PORTABLE REAL TIME ECG MONITORING SYSTEM

The present invention relates to a portable real time ECG monitoring system. The designed system is a portable device having a small analog front end circuit, a microcontroller unit (Arduino Mega2560), and display and storage unit. The proposed system acquires the signals using sensor/electrodes placed on the surface of the skin and display these real time signals on TFT LCD screen. The microcontroller programs also calculate and display heart rate. The device is equipped with a memory card that stores a person's ECG data for further analysis. The developed prototype is capable of acquiring and displaying the real time ECG data with continues monitoring of Heart rate of a person and the ECG signals can also be recorded in the memory card that can be visualized by a cardiologist.

BIO-SIGNAL MONITORING DEVICE

Disclosed is a bio-signal monitoring device including an electrocardiogram detector, one or more sensor units, a controller configured to process the electrocardiogram signal or a sensing signal received from the sensor units, a connector configured to be connected to the sensor units and to transmit, to the controller, a sensing signal from the sensor units, and a communicator configured to communicate with an external electronic device. The sensing units include a breathing rate sensor, an acceleration sensor, a temperature sensor, or a combination thereof. 1. A bio-signal monitoring device comprising:an electrocardiogram detector configured to detect an electrical signal from a heart of an object and output an electrocardiogram signal;one or more sensor units comprising a breathing rate sensor, an acceleration sensor, or a temperature sensor, or a combination thereof;a controller configured to process the electrocardiogram signal, a sensing signal received from said one or more sensor units or both; be coupled to said one or more sensor units and', 'transmit, to the controller, a sensing signal from said one or more sensor units; and, 'a connector configured toa communicator configured to communicate with an external electronic device, a first signal analyzer configured to receive the electrocardiogram signal and generate first analysis data by analyzing the electrocardiogram signal;', 'a second signal analyzer configured to receive a sensing signal from said one or more sensing units and generate second analysis data by analyzing the sensing signal; and', 'a signal processor configured to transmit the electrocardiogram signal or the sensing signal to the external electronic device according to a request signal., 'wherein the controller comprises2. The bio-signal monitoring device of claim 1 , wherein the electrocardiogram detector and the breathing rate sensor claim 1 , the acceleration sensor claim 1 , the temperature sensor claim 1 , or a combination thereof ...

APPARATUS AND METHODS FOR THE MANAGEMENT OF PATIENTS IN A MEDICAL SETTING

Apparatus and methods are described for performing a differential diagnosis of a patient, including, using a computer processor (18), in a machine-learning stage, receiving data relating to a plurality of patients, receiving conditions that respective patients are diagnosed as having, and thereby determining correlations between respective patient parameters and the conditions that patients are diagnosed as having. In a patient-diagnosis stage, one or more conditions that a given patient is suspected of having are determined. Based at least partially upon the correlations determined during the machine-learning stage and the conditions that the given patient is suspected of having, a set of questions to ask the patient is determined such that determining that the patient has one of the conditions with a likelihood that passes a threshold likelihood may be achieved with a minimum number of questions being asked. Other applications are also described.

Multiple Physiological Data Collection Device and System

Disclosed are a multiple physiological data collection device and system that collect, manually mark, sampling—physiological data for machine learning and AI analyses in a single operation background. Physiological data uploaded by sensing devices of different type and function, described in different formation, recorded at different times and/or pertaining to different person can be processed in one system. The invented system comprises a data uploading device, a data storage device and a data edition device and, optionally, an automated data analysis device.

Device and Method for Detecting a Medically Active Implant Within a Person

The invention is a device and a method for detecting a medically active implant capable of electrical stimulation implanted within a person. Moreover, the invention also relates to the use of the device for determining the operational status of the medically active implant. The device is characterized by components: a) at least two electrodes that are in, or can be brought into, contact with the person, b) an electrical voltage measuring unit which is electrically connected to the at least two electrodes and which is capable of generating electrical voltage timing signals and c) an evaluation unit which is connected to the electrical voltage measuring unit.

A MEDICAL THERAPEUTIC DEVICE

ELECTRONIC DEVICE COMPRISING ELECTRODE BUTTON

An electronic device according to one embodiment comprises: a housing; a button member which is coupled to the housing and at least a portion of which is exposed to the outside of the housing; a bracket which is disposed inside the housing and on which a circuit board is mounted; a connection member which is disposed in the bracket and is electrically connected to the circuit board; and a conductive structure which is disposed in one portion of the connection member so as to be in contact with the button member, and which is electrically connected to the connection member and the button member, wherein the conductive structure comprises a contact portion in contact with the button member and a fixed portion which extends from the contact portion to the connection member so as to space the contact portion and the connection member apart from each other, wherein at least a portion of the contact portion may be formed to have a shape that is bent toward the connection member.

Medizinischer Sensor

Vorliegende Erfindung betrifft einen medizinischen Sensor (100), mit welchem eine Überwachungsvorrichtung (200) für Vitalparameter ausgestattet ist. Der medizinische Sensor (100) umfasst eine flexible Schaltungsschicht (10) mit einem Elektrodenmuster (12), eine Schaumschicht (30), die auf die flexible Schaltungsschicht (10) auflaminiert ist, eine Verbindungsschicht (20) zwischen der flexiblen Schaltungsschicht (10) und der flexiblen Schaltungsschicht (10), um die Schaumschicht (30) mit der flexiblen Schaltungsschicht (10) zu verbinden, und einen Gelschwamm (40) der über die Schaumschicht (30) und die Verbindungsschicht (20) auf dem Elektrodenmuster (12) angeordnet und mit dem Elektrodenmuster (12) elektrisch verbunden ist. Die Fläche der Verbindungsschicht (20) ist kleiner als die Fläche der Schaumschicht (30). Ein an den Perimeter angrenzender Teil der Schaumschicht (30) ist nicht mit der Verbindungsschicht (20) bedeckt und nicht durch die Verbindungsschicht (20) mit der flexiblen Schaltungsschicht ...

Underwater measurement of bioelectric signals

Medical sensor

DEVICE AND METHOD FOR ASSESSING, PREDICTING AND OPERATING USER'S HEALTH IN REAL TIME

ABSTRACT Exemplary embodiments of the present disclosure are directed towards a medical device for assessing, and predicting and operating the user's health by capturing the user's vital signs in real time. The medical device comprises a plurality of electrodes and a plurality of sensors positioned on various finger sheaths, wrist portions, and hand portions. The various finger sheaths, the wrist portions, and the hand portions are configured to allow the plurality of electrodes to detect a plurality of electrical potentials on different surfaces of a user's body parts and the plurality of sensors to collect vital signs on different surfaces of a user's body parts. at least one processing device configured to contact with the plurality of electrodes and the plurality of sensors, the plurality of electrodes and the plurality of sensors configured to transmit the detected plurality of electrical potentials and the plurality of vital signs from the different surfaces of the user's body parts ...

PATCH-BASED PHYSIOLOGICAL SENSOR

The invention provides a body-worn patch sensor for simultaneously measuring a blood pressure (BP), pulse oximetry (SpO2), and other vital signs and hemodynamic parameters from a patient. The patch sensor features a sensing portion having a flexible housing that is worn entirely on the patient's chest and encloses a battery, wireless transmitter, and all the sensor's sensing and electronic components. It measures electrocardiogram (ECG), impedance plethysmogram (IPG), photoplethysmogram (PPG), and phonocardiogram (PCG) waveforms, and collectively processes these to determine the vital signs and hemodynamic parameters. The sensor that measures PPG waveforms also includes a heating element to increase perfusion of tissue on the chest.

DISPOSITIF DE SUIVI DE L'ACTIVITE ELECTRO-PHYSIOLOGIQUE D'UN SUJET

La présente invention concerne un dispositif de suivi de l'activité électro-physiologique d'un sujet, notamment pour le diagnostic ou la surveillance de l'épilepsie, comprenant : - un moyen de mesure de l'activité électrique cérébrale; - un moyen de mesure de l'activité électrique des muscles masticateurs; - un moyen d'acquisition configuré pour acquérir de manière synchronisée les signaux mesurés par le moyen de mesure de l'activité électrique cérébrale et par le moyen de mesure de l'activité électrique des muscles masticateurs; - un moyen de traitement des signaux; et - un moyen de transmission des signaux électriques acquis par le moyen d'acquisition audit moyen de traitement des signaux; dans lequel ledit moyen de traitement des signaux est configuré pour détecter parmi les signaux mesurés par le moyen de mesure de l'activité électrique cérébrale les signaux mesurés par le moyen de mesure de l'activité électrique des muscles masticateurs.

Apparatus and methods for removing a large-signal voltage offset from a biomedical signal

Apparatus and methods remove a voltage offset from an electrical signal, specifically a biomedical signal. A signal is received at a first operational amplifier and is amplified by a gain. An amplitude of the signal is monitored, by a first pair of diode stages coupled to an output of the first operational amplifier, for the voltage offset. The amplitude of the signal is then attenuated by the first pair of diode stages and a plurality of timing banks. The attenuating includes limiting charging, by the first pair of diode stages, of the plurality of timing banks and setting a time constant based on the charging. The attenuating removes the voltage offset persisting at a threshold for a duration of at least the time constant. Saturation of the signal is limited to a saturation recovery time while the saturated signal is gradually pulled into monitoring range over the saturation recovery time.

REMOVING NOISE FROM CARDIAC SIGNALS

In one embodiment, a method includes receiving first cardiac signals captured by at least one first sensing electrode in contact with tissue of a first living subject, injecting the received first cardiac signals into a length of wire, which outputs respective noise-added cardiac signals responsively to noise acquired in the wire, training an artificial neural network to remove noise from cardiac signals responsively to the received first cardiac signals and the respective noise-added cardiac signals, receiving second cardiac signals captured by at least one second sensing electrode in contact with tissue of a second living subject, and applying the trained artificial neural network to the second cardiac signals to yield noise-reduced cardiac signals.

System, device and method for safeguarding the wellbeing of patients for fluid injection

A system and method for promoting and safeguarding the wellbeing of patients in relation to a fluid injection may obtain patient data; determine, based on the patient data, an initial risk prediction for a patient for a fluid injection to be administered to the patient, the initial risk prediction including a probability that the patient experiences at least one adverse event in response to the fluid injection; provide, to a user device, before the fluid injection is administered to the patient, the initial risk prediction; determine, after the fluid injection is started, sensor data associated with the patient; determine, based on the sensor data determined after the fluid injection is started, a current risk prediction including a probability that the patient experiences the at least one adverse event in response to the fluid injection; and provide, to the user device, the current risk prediction.

BIOSIGNAL MONITORING WEARABLE ITEM

A biological signal monitoring wear according to one aspect of the present invention includes a plurality of electrodes configured to be in contact with a skin of a subject; an electrically connecting unit configured to electrically connect a biological signal measurement instrument to the electrodes, the biological signal measurement instrument being configured to measure a biological signal of the subject; and a wear main body to which the electrically connecting unit is detachably attached, the wear main body being configured to be worn by the subject. The electrically connecting unit includes: a sheet electrical insulator having flexibility; a plurality of electrode connectors that are formed on a first surface of both surfaces of the electrical insulator in a thickness direction of the electrical insulator, the electrode connectors being configured to connect the respective electrodes; an instrument connector that is formed on a second surface of both surfaces of the electrical insulator ...

SENSOR UNIT FOR ATTACHMENT TO A HUMAN OR ANIMAL BODY

Die Erfindung betrifft eine Sensoreinheit zur Befestigung an einem menschlichen oder tierischen Körper, insbesondere an der Haut des Körpers, mit einem Sensorteil (11), das einen Foliensensor (12) zur Messung ein oder mehrerer Körperparameter aufweist, der über ein Folienstück (14) mit mindestens einer an dem Folienstück (14) angeordneten elektrischen Leitung verfügt sowie über einen mit dieser Leitung elektrisch leitend verbundenen, bevorzugt an dem Folienstück (14) angeordneten Messfühler (13), und mit einem mit dem Sensorteil (11) bevorzugt lösbar verbundenen Elektronikteil (17), das eine Elektronikeinheit zum Betreiben des Foliensensors aufweist.

SENSOR STRUCTURE AND ELECTRONIC DEVICE COMPRISING SENSOR STRUCTURE

An electronic device according to various embodiments disclosed herein may include a cover including a first surface and a second surface opposite to the first surface, a first electrode disposed on the first surface of the cover to be in contact with a user's body, a second electrode disposed on the second surface of the cover and electrically connected to the first electrode, a printed circuit board disposed to face the second surface of the cover, a temperature sensor electrically connected to the printed circuit board and disposed adjacent to the second electrode, and at least one processor connected to the temperature sensor, wherein the processor may be configured to generate bio-related information based on an electrical signal received through the first electrode and the second electrode, and measure the user's body temperature, which is conducted from the first electrode to the second electrode, through the temperature sensor.

Tragbares Gesundheitsvorrichtungssystem mit automatischer Referenzierung von Seismokardiographiesignalen

Ein tragbares Gesundheitsvorrichtungssystem umfasst ein Gehäuse, das konfiguriert ist, durch ein Subjekt getragen zu werden, und eine Sensorbaugruppe mit mindestens zwei Beschleunigungsmessern, die eine Beschleunigung entlang von nichtparallelen Achsen erkennen. Ein Prozessor, der bedienbar mit der Sensorbaugruppe verbunden ist, und ein Speicher führen Programmanweisungen in dem Speicher aus, um SCG-Templatedaten von den Beschleunigungsmessern zu empfangen und die erfassten SCG-Templatedaten in mindestens ein Herzzyklussegment zu teilen, indem die SCG-Templatedaten in SCG-Templatedaten mit polaren Koordinaten oder SCG-Templatedaten mit sphärischen Koordinaten konvertiert werden. Mindestens ein Referenzherzereignis wird in den SCG-Templatedaten unter Verwendung der konvertierten SCG-Templatedaten identifiziert, und die SCG-Templatedaten werden auf dem Referenzherzereignis basierend in mindestens ein Herzzyklussegment unterteilt.

Electrocardiogram Measurement Method and System Using Wearable Device

System for capacitively capturing electrical biosignals from a biosignal source and associated method

A system for capacitively capturing electrical biosignals e.g. ECG in a medical care screening or monitoring environment comprises a sheet 101, at least two capacitive electrodes 102 supported by the sheet, a printed circuit board 108 supported by the sheet, two stretchable contacts 104 respectively arranged between each capacitive electrode and the PCB, wherein each stretchable contact is configured to stretch to permit relative movement between its respective capacitive electrode and the PCB while maintaining electrical contact between the PCB and its respective capacitive electrode. The sheet may be a textile material such as a bed sheet or a cover for a pillow, mattress or chair. The stretchable contact may be a serpentine conductive trace on a thermoplastic polyurethane substrate. The sheet may also have a temperature sensor 112.

Telemetric device and wearable device

A telemetric device 1000 comprising an enclosure 1200 and a circuit board 1300 in the enclosure, the telemetric device comprises a female snap connector 120 (Figure 1), which comprises a base 124 (Figure 5) and a cap 121 (Figure 5) which opposes the base; the female snap connector further includes a socket 122 (figure 5) that is formed into the cap for receiving a stud 152 (Figure 5) of a male snap connector, the socket undergoes elastic deformation so as to allow passage of the stud; the base material of the female snap connector comprises a conductive polymer; the female snap connector is mechanically and electrically connected to the circuit board and extends through the enclosure. a separate embodiment relates to a wearable device comprising a garment and first and second electrode units 100 (Figure 3). A sealing member 1160 (Figure 8) may be provided ...

Biometric information measuring garment

To provide a biometric information measuring garment comprising a garment provided with an electrode and wiring, with which noise contamination can be suppressed when a biometric electrical signal is being read, even when put on in a dry environment, and with which there is little discomfort. A feeling of discomfort when worn is reduced by using an electrode and wiring which are extensible and have high electrical conductivity even when extended, and biometric electrical signal reading noise is reduced by suppressing static electricity generated when the garment is put on, by selecting materials that are close to one another in the triboelectric series as a plurality of insulating materials constituting the garment.

Electric potential mapping and electrode attachment device with continuous electric signal monitoring and method

Electric potential mapping and electrode attachment device comprises: a main cylinder; a center piece having a center piece passage for receiving a catheter with its electrode running from a center piece net to a center piece outlet; a cylinder cap for closing main cylinder; a second cylinder which fits inside of and is allowed to rotate relative to main cylinder; and at least two electromechanical connections used to connect the device to at least two connectors on an electrode lead, where the device facilitates rotation and movement of each connector relative to the other while retaining continuous electrical connection with heart tissue or other body cavity tissue. A laparoscopic device is attached to electric potential mapping and electrode attachment device. Electric potential mapping and electrode attachment device is capable of continuously recording electrical potentials of a heart cavity or other body cavity during full rotation of collars, connectors, or connections on the laparoscopic device and is capable continuously recording electrical signals during HIS bundle mapping, pacemaker electrode anchoring, post anchoring, pacemaker programming, and afterwards. The invention provides a means for retaining continuous electrical signal connections with the electrode from mapping, electrode attachment, to pacemaker control unit programming, without interruption of the electrical signals.

Catheter with thin film pressure sensing distal tip

A mapping and ablation catheter has contact force sensing capabilities at a distal end. In one embodiment, the catheter includes a catheter body, a deflectable section, and a tip distal tip section which has a tip electrode with a thin-film pressure sensor that is adapted to detect a force vector applied to the tip electrode. The thin-film pressure sensor includes two opposing flexible and thin support members containing a pressure-sensitive material therebetween whose resistivity changes as a result of pressure and is detected by trace electrode intersections supported on interfacing surfaces of the flexible and thin support members. Used with a stop member having a conforming shape against which the thin-film pressure sensor abuts when a force vector is applied to the tip electrode, the pressure sensor can have a 2-D, radially-symmetrical shape, e.g., a disc or ring configuration, or a 3-D, radially-symmetrical shape, e.g., a conical configuration.

Reconfirmation of ecg-assisted catheter tip placement

Reconfirmation of the position of a catheter intravascularly placed with the assistance of ECG signals of the patient is disclosed, thus assisting in determination of subsequent catheter displacement within the patient vasculature. In one embodiment a method for reconfirming a position of an indwelling medical device within a body of a patient comprises first placing the medical device within the body of the patient using ECG signals of the patient. A first ECG signal profile relating to an initial position of the indwelling medical device after initial placement of the medical device is stored. A second ECG signal profile relating to the position of the indwelling medical device at a time subsequent to initial placement of the medical device is then acquired. The first ECG signal profile is compared with the second ECG signal profile to determine whether displacement of the indwelling medical device has occurred.

Apparatus And Methods For Wireless Communication Via Electrical Pulses Conducted By The Interstitial Tissues Of The Body For An Active Implantable Medical Device

An active implantable medical device having wireless communication of data via electrical pulses conducted by the interstitial tissues of the body. This device ( 12, 14 ) includes a pair of electrodes ( 22, 24 ) and generates pulse trains consisting of a series of electrical pulses applied to the electrodes. The pulse train is modulated by digital information (data) that is produced by the device. A regulated current or voltage source ( 42 ) is used to generate ( 44, 48 ) current or voltage pulses to form the pulse train. Each current or voltage pulse is a biphasic pulse comprising a positive and negative alternation. The biphasic current or voltage modulated by the digital information, is injected between the electrodes ( 22, 24 ) and wirelessly communicated.

Catheter with coronary sinus ostium anchor

A method of treating cardiac tissue is provided, including positioning a first chamber of a medical device adjacent an atrial wall; directing a cryogenic coolant into the first chamber; anchoring the first chamber to the atrial wall through cryoadhesion; directing a distal portion of the medical device into the coronary sinus; and positioning a cardiac lead through at least a portion of the coronary sinus with the distal portion. The method may include measuring a temperature of the first chamber; removing the first chamber from the atrial wall once a predetermined threshold temperature of the first chamber is reached; anchoring a second chamber of the medical device to a portion of the coronary sinus; and/or perfusing blood flow through at least a portion of the second chamber.

Deflectable catheter with bonded center strut and method of manufacture for same

A catheter for diagnosing or treating the vessels found within a body or body space includes a center strut that is bonded, preferably thermally, along its longitudinal axis with the thermoplastic tubular member within which it is housed. The tubular member preferably has three layers: an inner layer, a braided layer and an outer layer. The composite catheter is made using a process in which two half-cylinder shaped mandrels are placed on each side of the center strut while the strut is heated in order to cause the thermal bonding. The bonded center strut provides in-plane deflection and improved transfer of torque to the tip of the catheter.

In-plane dual loop fixed diameter electrophysiology catheters and methods of manufacturing therefor

An EP catheter includes a tubular body having a proximal region, a neck region, and a distal portion predisposed into an in-plane dual loop (at least, approximately, more or less) configuration and including a plurality of diagnostic electrodes. In deflectable catheter forms, at least one activation wire extends through at least a portion of the proximal region of the catheter body and is adapted to deflect the distal portion up to approximately 180 degrees relative to the proximal region. The catheter can be operated manually by a clinician or via a clinician-surrogate such as a computer processor-controlled surgical system. In addition, a variety of localization, visualization, and/or orientation-specific elements can be incorporated into the devices described, depicted, and claimed herein (e.g., metallic coil members, active impedance emitting or receiving electrodes, fluoroscopically opaque materials, and the like).

Fixed loop deflectable electrophysiology catheters having an extended braid primary shaft coupled to the periphery of the fixed loop and methods of manufacturing therefor

An EP catheter includes a tubular body having a proximal region, a neck region, and a distal portion predisposed into a single shallow helical fixed-diameter loop configuration and including a plurality of diagnostic electrodes. In deflectable catheter forms, at least one activation wire extends through at least a portion of the proximal region of the catheter body and is adapted to deflect the up to approximately 180 degrees relative to the proximal region. The catheter can be operated manually by a clinician or via a clinician-surrogate such as a computer processor-controlled surgical system. In addition, a variety of localization, visualization, and/or orientation-specific elements can be incorporated into the devices described, depicted, and claimed herein (e.g., metallic coil members, active impedance emitting or receiving electrodes, fluoroscopically opaque materials, and the like).

Method and apparatus for performing transesophageal cardiovascular procedures

An apparatus for performing a transesophageal cardiovascular procedure includes an elongated tubular main access device having a first lumen with an open proximal end and a distal side opening, and a second lumen with a rigid outer wall and a collapsible inner wall. The second lumen is adapted to receive an elongated probe or surgical device. The apparatus further includes an inflatable sealing means on the outside of the main access device above and below the side opening, and a first fluid conduit extending along the main access device for inflating the sealing means so that when the main access device is inserted into a patient's esophagus and the sealing means are inflated. The portion of the esophagus opposite the side opening is isolated from the remainder of the esophagus above and below the side opening.

Leadless wireless ecg measurement system and method for measuring of bio-potential electrical activity of the heart

A leadless wireless ECG measurement system for measuring of bio-potential electrical activity of the heart in a patient's body includes at least one multi-contact bio-potential electrode assembly adapted for attachment to the patient's body. The electrode assembly is formed of an electronic patch layer and a disposable electrode layer. The disposable electrode layer has a plurality of contact points for engagement with the surface of the patient's body and is configured to measure short-lead ECG signals in response to electrical activity in the heart. A processing unit is provided and is configured to produce a transfer function which computes estimated long-lead ECG signals based on the measured short-lead ECG signals from the plurality of contact points.

Implanted device data to guide ablation therapy

A medical device system and associated method for guiding ablation therapy sense cardiac signals using implantable electrodes and detect spontaneous cardiac events from the sensed cardiac signals. Pacing pulses are delivered and a return cycle length is measured in response to the plurality of pacing pulses. The spontaneous cardiac event is clustered with a previously detected cardiac event in response to the measured return cycle length, and a targeted ablation site is estimated in response to the measured return cycle length. A transit time interval, corresponding to a distance traversed by a depolarization associated with a last one of the plurality of pacing pulses when a reset condition occurs, is computed using the return cycle length, and the ablation site is estimated in response to the computed transit time interval.

Implantable active fixation lead with biodegradable helical tip

Described is an implantable lead comprising a flexible body extending between a proximal end and a distal end and a distal assembly coupled to the distal end of the body. The distal assembly includes a housing having a distal end and a proximal end, the proximal end fixedly coupled to the distal end of the lead body, a coupler rotatably disposed within the housing, the coupler having a proximal end and a distal end, and a helical electrode fixedly secured to the distal end of the coupler. The helical electrode comprises a proximal axial length portion that comprises a non-degradable material, and a distal axial length portion that comprises a biodegradable material. The coupler and the helical electrode are configured to rotate and therefore translate relative to the housing.

Medical device adjusting operation when used with non-authenticated patient parameter collecting accessory

Embodiments are directed to a medical device, such as a defibrillator, for use with an accessory capable of collecting a parameter of a patient. The medical device is capable of at least performing a basic functionality, an advanced functionality, and of defibrillating the patient. The medical device includes an energy storage module within a housing for storing an electrical charge that is to be delivered to the patient for the defibrillating. The medical device includes a processor structured to determine whether a data set received from the accessory confirms or not a preset authentication criterion about the accessory. Although when the accessory is coupled to the housing the medical device is capable of the defibrillating and the basic functionality, the medical device is capable of the advanced functionality only when the accessory is coupled to the housing and it is determined that the preset authentication criterion is confirmed. Embodiments also include methods of operation and a programmed solution.

Apparatus and method for outputting heart sounds

An apparatus for outputting heart sounds includes an implantable system and an external system. The implantable system includes a sensor for generating sensed signals representing detected heart sounds, an interface circuit and a control circuit for receiving the sensed signals, generating data representing the heart sounds therefrom, and transmitting the data to the external system via the interface circuit. The external system includes an interface circuit for communicating with the implantable system, and a control circuit for receiving the data representing the heart sounds and for generating control signals that cause an output device to generate outputs representing the sounds. The implantable system may also include a sensor(s) for detecting cardiac electrical signals. In this case, outputs representing the cardiac electrical signals are also output.

Implantable systems and methods for use therewith for monitoring and modifying arterial blood pressure without requiring an intravascular pressure transducer

Embodiments of the present invention are directed to implantable systems, and methods for use therewith, that monitor and modify a patient's arterial blood pressure without requiring an intravascular pressure transducer. In accordance with an embodiment, for each of a plurality of periods of time, there is a determination one or more metrics indicative of pulse arrival time (PAT), each of which are indicative of how long it takes for the left ventricle to generate a pressure pulsation that travels from the patient's aorta to a location remote from the patient's aorta. Based on the one or more metrics indicative of PAT, the patient's arterial blood pressure is estimated. Changes in the arterial blood pressure are monitored over time. Additionally, the patient's arterial blood pressure can be modified by initiating and/or adjusting pacing and/or other therapy based on the estimates of the patient's arterial blood pressure and/or monitored changes therein.

Method and Apparatus for Measuring Blood Volume

In one aspect, a conductance catheter is provided for measuring the volume of a fluid. The conductance catheter comprises a series of electrodes and a circuit to compensate for variations in sensitivity of the electrodes in the catheter. In another aspect, a resistivity sensor is provided for determining the resistivity of a fluid. The sensor comprises a series of electrodes spaced such that the total distance between endmost electrodes does not exceed the diameter of the catheter deploying the sensor.

Magnetically guided catheters

A magnetically-guided catheter 100 includes a tip positioning magnet in the distal electrode assembly configured to interact with externally applied magnetic fields for magnetically-guided movement. A magnetically-guided mapping catheter 100 includes an electrically-conductive capsule in the form of a casing 146 that includes a distal ablation surface and isolates the positioning magnet from bio-fluids to prevent corrosion. An open irrigation ablation catheter includes an isolated manifold that isolates the positioning magnet from contact with irrigation fluid to prevent corrosion.

Systems and methods for remote monitoring of signals sensed by an implantable medical device during an mri

Systems and methods are provided for allowing an implantable medical device, such as pacemaker, to properly sense electrophysiological signals and hemodynamic signals within a patient during a magnetic resonance imaging (MRI) procedure. Systems and methods are also provided for allowing the implantable medical device to transmit the sensed data to an external monitoring system during the MRI procedure so that attending medical personnel can closely monitor the health of the patient and the operation of the implantable device during the MRI. These improvements provide the attending personnel with information needed to determine whether the MRI should be suspended in response to induced tachyarrhythmias or other adverse conditions within the patient.

Methods for detection of cardiac rhythm disorders using basket style cardiac mapping catheter

A method for sensing multiple local electric voltages from endocardial surface of a heart, includes: providing a system for sensing multiple local electric voltages from endocardial surface of a heart, including: a first elongate tubular member having a lumen, a proximal end and a distal end; a basket assembly including: a plurality of flexible splines for guiding a plurality of exposed electrodes, the splines having proximal portions, distal portions and medial portions therein between, wherein the electrodes are substantially flat electrodes and are substantially unidirectionally oriented towards a direction outside of the basket.

Apparatus and Method for Ablating Tissue

A control system alters one or more characteristics of an ablating element to ablate tissue. In one aspect, the control system delivers energy nearer to the surface of the tissue by changing the frequency or power. In another aspect, the ablating element delivers focused ultrasound which is focused in at least one dimension. The ablating device may also have a number of ablating elements with different characteristics such as focal length.

Multi-Function Clamp For Veterinarian

A multi-function clamp for veterinarian, mainly includes upper clip and lower clip; the clamp body is composed by upper clip, lower clip, bolt and torsional spring, wherein the foresaid clamp body installed with connection assembly that has connecting lead wires, and the connection assembly has several installation sections coordinates with the lead wire plug. By adopting the compatibility design, the multi-function clamp for veterinarian could apply to wider areas, a pet clinic equipped with the multi-function clamp for veterinarian is applicable even using the probe-type lead wires, the banana plug lead wires, the snap-type lead wires and the clip-type lead wires simultaneously, which greatly decreases the procurement cost for equipment and accessories, and easier to be operated. Furthermore, by adopting the anti-slip design, the multi-function clamp for veterinarian will improve remarkably for the matter the clamp drops off from the operators or the animal skins, which saves time in operation.

System and method for reconstructing cardiac activation information

An example system and method of reconstructing biological activation information are disclosed. A first biological signal and a second biological signal associated with an organ are processed via a computing device to determine whether there is a point of change in a derivative of the first biological signal with respect to a derivative of the second biological signal above a threshold. An activation onset time is assigned in the first biological signal at the point of change to define biological activation associated with the organ in the first cardiac signal if it is determined that the point of change is above the threshold.

System and method for targeting catheter electrodes

A system and method is described for a catheter guidance system which allows an operator to use a mapping catheter to specify tissue target locations for the automatic guidance of a second therapeutic catheter. The operator places a mapping catheter at a desired location, and commands the catheter guidance system by either selecting a point on that catheter or one of the catheter electrode electrocardiograms. The operator may target the selected dynamic location, or tissue contact beyond that location on a specific side of the mapping catheter.

Data collection module for a physiological data collection system

A data collection module for a physiological data collection system is a reusable device having a data collection port for connection to a source of physiological data that is in an analog format. The data collection port is in circuit communication with a plurality of bipolar amplifiers. The amplifiers are in circuit communication with a central processing unit provided with analog to digital converters, memory for signal processing and internal USB circuitry. The central processing unit is in circuit communication with a means for storing data and with a means for conveying the data in digital form via at least one of a USB port and a wireless communication system.

Electrode Array

A sensor array apparatus for monitoring medical signals includes a flexible substrate adapted for positioning relative to the torso of a patient. The flexible substrate includes a central segment defining a central axis and is adapted to generally conform to an area extending along the sternum of a patient. The flexible substrate further includes an upper segment extending traversal across the central segment and adapted to generally conform to the chest area of a patient and a lower segment extending traversal across the central segment and adapted to generally conform to the abdominal area of the patient. The apparatus further includes a medical electrode disposed on at least one of the segments and a connector in electrical communication with the medical electrode and adapted to connect to an electronic monitoring system.

Medical sensor system

A medical sensor system which includes at least one sensor lead which can be implanted in the body of a human/animal, comprising two end sections, wherein the end sections are designed to be routed through two artificial openings in the surface of the body. The sensor lead includes, between the two end sections, at least one sensor for detecting a biological measured quantity. The sensor system furthermore includes at least one fastening element disposed on the surface of the body, which can be connected to the end sections guided through the body openings for affixing the implanted sensor lead, wherein the at least one fastening element comprises a device for processing sensor signals, and an energy source for supplying the sensor system with electrical energy.

Devices, systems and methods to perform arrhythmia discrimination based on the atrial and ventricular activation times

Described herein are implantable systems and devices, and methods for use therewith, that can be used to perform arrhythmia discrimination based on activation times. A plurality of different sensing vectors are used to obtain a plurality of IEGMs that collectively enable electrical activations to be detected in the left atrial (LA) chamber, the right atrial (RA) chamber, and at least one ventricular chamber of a patient's heart. For each of a plurality of cardiac cycles, there is a determination, based on the plurality of obtained IEGMs, of an LA activation time, an RA activation time, and a ventricular activation time. Arrhythmia discrimination is then performed based on the determined activation times.

Stimulation/sensing lead adapted for percutaneous insertion

The present invention relates to a percutaneous insertion-capable lead, wherein insertion made through a percutaneous insertion structure. For one embodiment of such lead, the electrode-supporting stimulation portion of the lead includes at least one waisted region, relative to a transverse dimension of the lead, to facilitate lead steerability.

Vacuum delivery extractor

A delivery extractor for use with a suction source and at least one monitor in vacuum assisted deliveries. The extractor comprises a cup-shaped element and a tubular stem joined to the cup-shaped element and in pneumatic communication with the suction source. The extractor also includes at least one noninvasive sensor positioned on a sensor support so as to continuously contact the scalp of a fetus when the head of the fetus is positioned in the cup-shaped element. The sensor support is depressible within the cup-shaped element. The at least one sensor is in communication with the monitor(s) which monitors at least one physiological indicator of the well-being of the fetus during its transit through the birth canal. In other cases, the aforementioned noninvasive sensor(s) detects direct waves while other noninvasive sensors positioned on the rim of the cup-shaped element detect surface waves related to the same phenomenon.

Method and apparatus for performing transesophageal cardiovascular procedures

An apparatus for performing a transesophageal cardiovascular procedure includes an elongated tubular main access device having a first lumen with an open proximal end and a distal side opening, and a second lumen with a rigid outer wall and a collapsible inner wall. The second lumen is adapted to receive an elongated probe or surgical device. The apparatus further includes an inflatable sealing means on the outside of the main access device above and below the side opening, and a first fluid conduit extending along the main access device for inflating the sealing means so that when the main access device is inserted into a patient's esophagus and the sealing means are inflated. The portion of the esophagus opposite the side opening is isolated from the remainder of the esophagus above and below the side opening.

Method and apparatus to manage lead-related conditions for fault tolerance enhancements

The disclosure describes systems, methods, and apparatus providing detection mechanism for lead-related conditions, including transient behaviors, on a conductive pathway of a medical electrical lead. In one example, a sense path arbitration module identifies a lead-related condition associated with a conductive pathway based on signal processing to identify transients emerging from a propagated signal. The sense path arbitration module may evaluate a plurality of conductive pathways of the medical electrical lead and arbitrates propagation of a sensed signal that is transmitted through the plurality of lead conductors based on the evaluation. Therapy delivery functions utilizing the medical electrical lead may also be controlled in response to the signal processing and identification of the lead-related condition on a conductive pathway.

Leadless intra-cardiac medical device with built-in telemetry system

A leadless intra-cardiac medical device is configured to be implanted entirely within a heart of a patient. The device includes an intra-cardiac extension and a housing. The intra-cardiac extension includes a loop body having at least one loop segment retaining at least one coil group that is configured to one or both of receive and transmit radio frequency (RF) energy, wherein the loop body is configured to extend into a first chamber of the heart. The housing is in electrical communication within the loop body, and includes a transceiver, control logic and an energy source. The housing is configured to be securely attached to an interior wall portion of a second chamber of the heart, wherein the transceiver is configured to communicate with an external device through the RF energy.

Mri-guided devices and mri-guided interventional systems that can track and generate dynamic visualizations of the devices in near real time

An MRI-guided medical device includes an elongated sheath, an elongated dilator, and an elongated needle. The sheath has a distal end, an opposite proximal end, and a central lumen extending between the proximal and distal ends. The sheath comprises MRI-compatible material and includes a tracking member located adjacent to the sheath distal end that is visible in an MRI image. The dilator comprises MRI-compatible material and is movably disposed within the sheath lumen. A distal end of the dilator is configured to extend outwardly from the sheath distal end and dilator includes at least one tracking member that is visible in an MRI image. The needle is movably disposed within the dilator lumen and is movable between stored and operative positions relative to the dilator. An RF shield may be coaxially disposed within the elongated sheath so as to surround a portion of the sheath central lumen.

Heart Treatment Kit, System, and Method for Radiosurgically Alleviating Arrhythmia

Radiosurgical treatments of tissues of the heart mitigate arrhythmias and treat other tumerous and non-tumerous disease using an implanted fiducial positioned in or near the heart using cardiac catheterization techniques. The fiducials may be implanted after diagnostic and planning images of the target tissues have been acquired. Fiducial implantation may take place the day of a scheduled radiosurgical treatment. Techniques to accommodate post-planning fiducial implantation may include registration of the implanted fiducial location with the treatment plan, and active fiducials may limit collateral imaging radiation exposure while enhancing tracking accuracy.

Sensing zone for spatially relevant electrical information

Systems and methods are disclosed to determine one or more sensing zones on a body surface for electrocardiographic mapping of a region of interest associated with the heart. The sensing zone can be utilized to facilitate acquisition, processing and mapping of electrical activity for the corresponding region of interest. In other examples, an application-specific arrangement of electrodes can also be provided based on the sensing zone that is determined for the region of interest.

Catheter balloon methods and apparatus employing sensing elements

An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.

Systems and methods for making and using medical ablation systems having mapping catheters with improved anchoring ability

A mapping catheter includes an elongated body for inserting into patient vasculature. A distal end of the elongated body includes a distal portion that includes a plurality of electrodes, a proximal portion disposed proximal to the distal portion, and a reduced-dimension portion disposed between the proximal and distal portions. The distal end is formed, at least in part, from a memory shape material that bends into a preformed shape upon release from a confined space. The preformed shape includes a first loop formed, at least in part, by the distal portion. The first loop is transverse to a longitudinal axis of the proximal portion. The reduced-dimension portion is configured and arranged to bend such that the reduced-dimension section advances distally through the first loop when the first loop is held in a fixed position and a force is applied distally along the longitudinal axis of the proximal portion.

Fault tolerant pacing

Methods and/or devices may be configured to monitor the performance of pacing therapy and provide fault-tolerant operation to provide therapy in the event of certain failure modes occurring in the pacing delivery circuits, leads, and/or lead/tissue interfaces. Generally, the methods and/or devices may provide fault-detection, fault-recovery and fault-handling to, e.g., handle potential faults.

Enhanced medical device for use in bodily cavities, for example an atrium

Systems, methods, and devices allow intravascular or percutaneous mapping, orientation and/or ablation, in bodily cavities or lumens. A device includes elongate members, moveable between an unexpanded configuration and an expanded or fanned configuration. The elongate members form a stack in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducer elements carried by elongate members sense various physiological characteristics of or proximate tissue, and/or may apply energy to or proximate tissue. The elongate members are rotatable in groups or as a group in the expanded configuration. The device is retractable.

Mri compatible conductive wires

An MRI compatible electrode circuit construct is provided. The construct includes at least three filter components constructed from a continuous or non-continuous electrode wire. One filter component may be a resonant LC filter proximate an electrode/wire interface. A second filter component may be a resonant LC filter adjacent a proximal termination of the wire construct. The filters resolve the issue of insufficient attenuation by effectively blocking the RF induced current on the wire from exiting the wire through the electrode and at the terminal or proximal end. The third filter component may include one or more non-resonant filter(s) positioned along the length of the electrode wire that resolve(s) the issue of excessive heating of the resonant LC filters by significantly attenuating the current induced on the wire before it reaches the resonant LC filters.

Robotic catheter system

A robotic catheter system includes a controller with a master input device. An instrument driver is in communication with the controller and has a guide instrument interface including a plurality of guide instrument drive elements responsive to control signals generated, at least in part, by the master input device. An elongate guide instrument has a base, distal end, and a working lumen, wherein the guide instrument base is operatively coupled to the guide instrument interface. The guide instrument includes a plurality of guide instrument control elements operatively coupled to respective guide drive elements and secured to the distal end of the guide instrument. The guide instrument control elements are axially moveable relative to the guide instrument such that movement of the guide instrument distal end may be controlled by the master input device.

Mapping probe assembly with skived tube body frame

An embodiment of a mapping probe assembly includes a body frame with a lumen therein. The body frame includes a catheter shaft region, a loop section and a transition region between the catheter shaft region and a loop section. A plurality of mapping electrodes are attached around the loop section. Electrical conductors extend through the lumen of the body frame to the mapping electrodes. In some embodiments, the loop section is skived, where a portion of the body frame is removed toward the interior of the loop section. The loop section has a generally planar loop, and further has a loop center. In some embodiments, the catheter shaft has an alignment generally perpendicular to the loop section where the alignment of the catheter shaft is along a line that intersects the planar loop proximate to the loop center.

Device features and design elements for long-term adhesion

An electronic device for long-term adhesion to a mammal includes a housing with an electronic component. The electronic device may include a first wing and a second wing, each being integrally formed with the housing. An electrode is positioned on a bottom surface of each of the wings, the electrodes electrically connected to the electronic component. An adhesive layer is provided for adhesion to a surface of the mammal. The adhesive layer may cover a portion of the bottom surfaces of the wings but generally does not cover the electrode or a bottom surface of the housing. A method of applying an electronic device to a mammal includes removing first and second adhesive covers from first and second wings of the electronic device to expose an electrode and an adhesive coated on a bottom surface of each wing.

Implantable medical device delivery with inner and outer sheaths

In one example, this disclosure is directed to a kit for intravascular implantation of an implantable medical device within a patient, the kit comprising an elongated outer sheath forming a first inner lumen with a distal opening, the outer sheath sized to traverse a vasculature of the patient, and an elongated inner sheath forming a second inner lumen. An outer diameter of the inner sheath is smaller than the diameter of the first inner lumen such that the inner sheath fits within the first inner lumen, wherein the inner sheath is slidable within the first inner lumen. The second inner lumen at a distal end of the inner sheath is configured to carry an implantable medical device. The inner sheath forms a slit at a distal end of the inner sheath to facilitate deployment of the implantable medical device out of the distal opening of the outer sheath.

Pass-through implantable medical device delivery catheter with removeable distal tip

In one example, this disclosure is directed to a kit for intravascular implantation of an implantable medical device, the kit comprising an outer sheath, the outer sheath sized to traverse a vasculature of the patient, and an elongated inner sheath with a tapered distal end. The inner sheath is slidable within the inner lumen of the outer sheath and is selectably removable from the inner lumen of the outer sheath by sliding the inner sheath out of the proximal opening of the outer sheath. The kit includes an elongated deployment receptacle including a deployment bay slidable within the inner lumen of the outer sheath when the inner sheath is not within the inner lumen of the outer sheath. The deployment bay carries an implantable medical device through the inner lumen of the outer sheath and facilitates deployment of the implantable medical device from the distal end of the outer sheath.

Blood pressure measuring device capable of measuring electrocardiogram

A blood pressure measuring device capable of measuring Electrocardiogram (ECG) is provided, in which a cuff body includes a compression sensor unit for sensing a blood pressure and a pulse rate while being worn on a user's body, a sensor unit is detachably provided at an interior and exterior of the cuff body and senses potential differences in active current generated during contraction of the user's heart and deriving an ECG value, in contact with the user's body, and a controller is electrically connected to the sensor unit and determines whether the user is normal by comparing the derived ECG value with a preset normal ECG value.

Physiological Measuring System Comprising a Garment in the Form of a Sleeve or Glove and Sensing Apparatus Incorporated in the Garment

A measuring system for measuring electrocardiogram signals comprises a diagnostic garment with ECG electrodes that may assume the form of a sleeve or glove. A disposable version of the glove can be inflated. By using an inflatable glove, the contour of the body is automatically matched by the contour of the glove. Samples from the ECG electrodes positioned on a diagnostic garment are compensated so that the samples better approximate samples from EEG electrodes that are positioned at classical locations. Also, samples from ECG electrodes are compensated to reduce signal noise resulting from positioning the ECG electrodes on the diagnostic garment.

Switched safety protection circuit for an aimd system during exposure to high power electromagnetic fields

An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch disposed between the diversion circuit and the AIMD electronics for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.

Injectable leadless heart stimulation and/or monitoring device

An injectable leadless heart stimulation and/or monitoring system is provided that includes an device having a sealed housing, one or more electrodes configured to electrically contact heart tissue when in use and electric components arranged within the housing. The electric components are at least in part operationally connected to the at least one electrode. The electric components include a power supply for providing power to the electric components. The power supply includes a rechargeable battery and further includes an implant-based coil that is configured to receive electric power via a tuned magnetic or electromagnetic field.

Enhanced medical device for use in bodily cavities, for example an atrium

Systems, methods, and devices allow intravascular or percutaneous mapping, orientation or ablation, or combinations thereof in bodily cavities or lumens. A device includes a plurality of elongate members which are moveable between an unexpanded configuration, a bent or coiled stack configuration and an expanded or fanned configuration. The elongate members form a stack arrangement in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducers carried by elongate members may sense various physiological characteristics of or proximate tissue, for instance temperature, and/or may apply energy to or proximate tissue, for example to perform ablation. The device is retractable.

Ecg-enabled personal emergency response systems

The invention provides personal emergency response systems (PERS) with expanded life-saving capabilities. One embodiment of the invention provides a wearable PERS pendant that incorporates a cell phone transmitter or transceiver, a GPS location system, an accelerometer-based fall detector that automatically triggers an alert, and an electrocardiogram (ECG) recorder permitting a remote service center or medical personnel to receive and respond to transmitted alerts and electrocardiographic data.

Method of Locating the Tip of a Central Venous Catheter

A method of locating a tip of a central venous catheter (“CVC”) having a distal and proximal pair of electrodes disposed within the superior vena cava, right atrium, and/or right ventricle. The method includes obtaining a distal and proximal electrical signal from the distal and proximal pair of electrodes and using those signals to generate a distal and proximal P wave, respectively. A deflection value is determined for each of the P waves. A ratio of the deflection values is then used to determine a location of the tip of the CVC. Optionally, the CVC may include a reference pair of electrodes disposed within the superior vena cava from which a reference deflection value may be obtained. A ratio of one of the other deflection values to the reference deflection value may be used to determine the location of the tip of the CVC.

Radiolucent Electrode Assembly

A lightweight, disposable and substantially radiolucent electrode or sensor assembly for that universally connects to separate, non-integrated electrodes or sensors for the monitoring of the physiological parameters of a live subject wherein the electrode assembly is comprised of one or more radiolucent electrical connectors for connecting the electrode assembly to the sensors. The present invention also discloses a method of positioning the electrode assembly on a patient whose physiological signs are being monitored such that access to the patient's chest is substantially unimpeded so as not to obstruct the electromagnetic imaging of the patient's chest, the application of defibrillation paddles or surgical procedures that require access to the chest area.

Personal authentication apparatus system and method

A target authentication device includes an electrode to detect an electrical signal associated with a user of the device. The electrical signal represents an authentication code for the device. An authentication receiver module is coupled to the electrode. The module receives the electrical signal from the electrode and determines whether the electrical signal matches a predetermined criterion to authenticate the identity of the user based on the electrical signal. An authentication module is also disclosed. The authentication module includes one electrode to couple an electrical signal associated with a user to a user of a target authentication device, the electrical signal represents an authentication code for the device. An authentication transmission module is coupled to the electrode. The authentication transmission module transmits the electrical signal from the electrode. A method of authenticating the identity of a user of a target authentication device also is disclosed.

Device and method for the geometric determination of electrical dipole densities on the cardiac wall

Disclosed are devices, a systems, and methods for determining the dipole densities on heart walls. In particular, a triangularization of the heart wall is performed in which the dipole density of each of multiple regions correlate to the potential measured at various locations within the associated chamber of the heart.

Systems, Methods and Devices Having Stretchable Integrated Circuitry for Sensing and Delivering Therapy

System, devices and methods are presented that integrate stretchable or flexible circuitry, including arrays of active devices for enhanced sensing, diagnostic, and therapeutic capabilities. The invention enables conformal sensing contact with tissues of interest, such as the inner wall of a lumen, a the brain, or the surface of the heart. Such direct, conformal contact increases accuracy of measurement and delivery of therapy. Further, the invention enables the incorporation of both sensing and therapeutic devices on the same substrate allowing for faster treatment of diseased tissue and fewer devices to perform the same procedure.

Cardiac stimulation system

Some embodiments of pacing systems employ wireless electrode assemblies to provide pacing therapy. The wireless electrode assemblies may wirelessly receive energy via an inductive coupling so as to provide electrical stimulation to the surrounding heart tissue. In certain embodiments, the wireless electrode assembly may include one or more biased tines that shift from a first position to a second position to secure the wireless electrode assembly into the inner wall of the heart chamber.

Mri compatible co-radially wound lead assembly

An MRI compatible lead assembly construct is provided. The construct includes at least two filter components constructed from an electrode wire. One filter component may be a resonant LC filter at or near an electrode/wire interface that resolves the issue of insufficient attenuation by effectively blocking the RF induced current on the wire from exiting the wire through the electrode. The second filter component may include one or more non-resonant filter(s) positioned along the length of the electrode wire that resolve(s) the issue of excessive heating of the resonant LC filter by significantly attenuating the current induced on the wire before it reaches the resonant LC filter. The non-resonant filter(s) may also attenuate the RF current reflected from the resonant LC filter thereby resolving the issue of the strong reflected power from the resonant filter and the associated dielectric heating.

Wearable communication platform

An wearable communications garment that includes one or more user-selectable inputs integrated into the garment. A sartorial communications apparatus may include a flexible material that is worn (e.g., as an undergarment) by the user and includes one or more interactive sensors that may be manually activated by a user, even through one or more intervening layers of clothing. The apparatus may also include one or more additional body sensors configured to sense a user's position, movement, and/or physiological status. The sensor(s) may be connected via a conductive trace on the garment to a sensor module for analysis and/or transmission. Methods of manufacturing the garments as well as methods of using the garments are also described.

Apparatus and method for outputting heart sounds

An apparatus for outputting heart sounds includes an implantable system and an external system. The implantable system includes a sensor for generating sensed signals representing detected heart sounds, an interface circuit and a control circuit for receiving the sensed signals, generating data representing the heart sounds therefrom, and transmitting the data to the external system via the interface circuit. The external system includes an interface circuit for communicating with the implantable system, and a control circuit for receiving the data representing the heart sounds and for generating control signals that cause an output device to generate outputs representing the sounds. The implantable system may also include a sensor(s) for detecting cardiac electrical signals. In this case, outputs representing the cardiac electrical signals are also output.

Evaluation of the quality of electrode contact with a skin surface

An instrument that utilizes body contact electrodes evaluates the quality of the connections made between the electrodes and the body. An electrode contact quality evaluation circuit performs the quality evaluation, such as by determining contact impedances for the electrodes. The corresponding contact quality of each electrode is conveyed to the user.

Medical device for positioning of a lead

The present invention relates generally to medical devices for electrode positioning during implantation procedures. A cardiac signal measuring device measures cardiac signals sensitive to inherent differences between cardiac tissue and blood using at least one electrode of a medical lead arranged at a distal tip of the medical lead and at least a second electrode arranged at a distance from the distal electrode and being connectable to the measuring unit. An analyzing module acquires cardiac signals measured during predetermined measurement sessions. The analyzing module determines at least one cardiac signal value based on the cardiac signals for each measurement session and analyzes changes of the cardiac signal values between different measurement sessions to determine a position of the electrode relative a tissue border. A maximum of the change of the cardiac signal values between two successive measurement sessions indicates that the electrode has reached the tissue border.

Sensor system and method for continuous and wireless monitoring and analysis of heart sounds, circulatory effects and core temperature in organisms

A system and method for continuous readout is provided. The object of the invention is achieved by a contact surface for attaching to a surface of an organism, a sensor system in thermal, mechanical and electrical contact with the contact surface, a radio chip operatively connected to the sensor, wherein the radio chip will respond to an induced signal from a reader by reading data from the sensor and transmit said data, and method for operating the sensor wherein the data from the sensor system is compensated for environmental effects using comprising a second sensor for detecting at least one property from the group comprising ambient temperature, pressure, flow, level, proximity, displacement, bio, image, gas, chemical, acceleration, orientation, humidity, moisture, impedance, capacitance, force, electric, magnetic and mass, thus forming compensated data.

Smart knitted fabrics

Knitting machines are used to intermesh conductive yarns into loops resulting in knitted fabrics. The knitting machine is adapted to import different types of yarns (conductive and non-conductive) directly into the knit structure. Combining conductive yarns and knitting systems allows for integration of electrical or mechanical component designs into existing clothing fabrication processes, avoiding current limitations of attaching or gluing conductive fabrics or other components over various materials. Starting with a planar design of an antenna, RFID tag, or some other electronic structure, the layout is converted into a CAD knitting program including a grid representing stitches. The CAD specifications of the final design/product are exported to the knitting machines so that the knitting machine may make conductive fabrics in accordance with the CAD specifications. The conductive fabrics are knitted into a variety of garments that monitor the vital signs of the wearer, including the fetus of an expectant mother.

Signal analysis related to treatment sites

A method includes storing baseline data representing at least one local or global electrical characteristics for at least a portion of a region of interest (ROI) of a patient's anatomical structure. The baseline data is determined based on electrical measurement data obtained during at least one first measurement interval. The method also includes storing in memory other data representing the at least one local or global electrical characteristics for the at least a portion of the ROI based on electrical measurement data obtained during at least one subsequent measurement interval. The method also includes evaluating the baseline data relative to the other data to determine a change in the at least one local or global electrical characteristics. The method also includes generating an output based on the evaluating to provide an indication of progress or success associated with the applying the treatment.

Electrocardiogram systems and related methods

Embodiments disclosed herein are directed to electrocardiogram systems and systems of using electrocardiogram systems. The electrocardiogram systems are configured to detect at least two electrical potentials (e.g., a first electrical potential and a second electrical potential) at two or more surfaces of a subject (e.g., a first surface and a second surface). In an embodiment, the electrocardiogram system includes at least one position sensor configured to detect the position of the at least one electrode relative to a surface of the subject.

An improved catheter and method of manufacture thereof

A sheath adapted for use with a catheter is disclosed comprising an electrical lead having a proximal end and a distal end and a lumen extending from the proximal end to the distal end, the electrical lead including a tubular member of non-conductive material. At least a first set of electrical conductors and a second set of electrical conductors extend from the proximal end to the distal end laid on the non-conductive tubular member, and an outer layer of non-conductive material is applied over the electrical conductors to cover the conductors. One or more electrodes are disposed on a distal portion of the sheath. Each electrode is in electrical communication with at least one of the electrical conductors through the outer layer. The first set of electrical conductors is helically wrapped around the lumen and the second set of electrical conductors is helically wrapped around the first set of electrical conductors.

Method for discriminating between ventricular and supraventricular arrhythmias

The present invention is directed toward a detection architecture for use in implantable cardiac rhythm devices. The detection architecture of the present invention provides methods and devices for discriminating between arrhythmias. Moreover, by exploiting the enhanced specificity in the origin of the identified arrhythmia, the detection architecture can better discriminate between rhythms appropriate for device therapy and those that are not.

CONTACTLESS ELECTRIC CARDIOGRAM SYSTEM

A system for providing a standard electrocardiogram (ECG) signal for a human body using contactless ECG sensors for outputting to exiting medical equipment or for storage or viewing on a remote device. The system comprises a digital processing module (DPM) adapted to connect to an array of contactless ECG sensors provided in a fabric or the like. A selection mechanism is embedded into the DPM which allows the DPM to identify body parts using the ECG signals of the different ECG sensors and select for each body part the best sensor lead. The DPM may then produce the standard ECG signal using the selected ECG signals for the different body parts detected. The system is adapted to continuously re-examine the selection to ensure that the best leads are selected for a given body part following a movement of the body part, thereby, allowing for continuous and un-interrupted ECG monitoring of the patient. 1. A method for generating electrocardiogram (ECG) signals for a human body using contactless ECG sensors , the method comprising:receiving contactless ECG signals from an array of contactless ECG sensors;detecting one or more body parts located in close proximity of the sensor array;selecting for the detected body parts contactless ECG sensors providing the highest signal quality;producing a standard ECG signal based on the contactless ECG signals received from the selected contactless ECG sensors associated with the detected body parts.2. The method of claim 1 , further comprising obtaining an outline of a portion of the human body detected by the sensor array claim 1 , and detecting the one or more body parts in the body outline using a set of rules.3. The method of claim 1 , further comprising identifying the contactless ECG sensors that are located in close proximity to the human body by measuring an impedance between each contactless ECG sensor and the human body.4. The method of claim 1 , further comprising associating claim 1 , to each detected body part claim 1 , ...

Methods of Ventricular Arrhythmia Localization Using a 3D Heart Model

A method of arrhythmia localization and model merging includes: generating a three-dimensional (3D) heart model of a heart of a patient, the 3D heart model including myocardium wall thickness measurements of the heart; generating an activation map of the heart based on electrocardiogram (ECG) data recorded during premature ventricular contraction (PVC) of the heart, the activation map including a PVC onset point; modifying the 3D heart model to include the PVC onset point; and displaying the modified 3D heart model on a display device. 1. A method of arrhythmia localization and model merging , comprising:generating a three-dimensional (3D) heart model of a heart of a patient, the 3D heart model comprising myocardium wall thickness measurements of the heart;generating an activation map of the heart based on electrocardiogram (ECG) data recorded during premature ventricular contraction (PVC) of the heart, the activation map comprising a PVC onset point;modifying the 3D heart model to include the PVC onset point; anddisplaying the modified 3D heart model on a display device.2. The method of claim 1 , wherein the generating a 3D heart model comprises using image data of the heart generated by a magnetic resonance imaging (MRI) device or a computed tomography (CT) imaging device.3. The method of claim 2 , wherein the generating a 3D heart model further comprises:selecting a cardiac 3D reference model based on the image data; andadjusting the 3D reference model based on image data.4. The method of claim 1 , wherein generating an activation map of the heart comprises capturing the 3D image of the patient's torso including the location of ECG electrodes used to collect the ECG data.5. The method of claim 4 , wherein the generating an activation map of the heart further comprises merging the 3D image of the patient's torso with the 3D heart model to form a torso and heart model comprising positions of the ECG electrodes relative to the heart model.6. The method of claim 5 , ...

Electrode units for sensing physiological electrical activity

Systems and apparatus for monitoring physiological electrical activity of an individual include a first electrode unit for receiving a first signal indicative of electrical activity at a first location on a body of the individual and a second electrode unit for receiving a second signal indicative of electrical activity at a second location on the body of the individual. Each of the first and second electrode units may be operated in a field-sensing mode wherein the electrode unit is placed on or in proximity to the individual's skin. The first and second electrode units comprise a capacitive sensor element, and the capacitive sensor element of each of the electrode units comprising an electrodynamic sensor which is sensitive to electromagnetic waves; and an antenna comprising an electrically conductive radiating element for receiving electromagnetic waves. The field-sensing mode can be either non-contact field-sensing mode wherein the electrode unit is placed on the individual's clothing or a contact field-sensing mode wherein the electrode unit is placed directly on the individual's skin.

Visualization and recordation system interface with virtual ground for biomedical system and methods

Methods, apparatus, and systems for medical procedures are disclosed herein. For example, a plurality of analog sensor signals and an analog reference signal are received by an analog-to-digital converter to produce respective digitized versions of the analog sensor signals. The respective digitized versions of the analog sensor signals are digital filtered to produce respective filtered digitized versions of the analog sensor signals. The filtered digitized versions of the analog sensor signals are output to a visualization system to provide real time display thereof. The filtered digitized versions of the analog sensor signals are communicated to a digital-to-analog converter to produce an analog version of the filtered digitized versions of the analog sensor signals. The analog version of the filtered digitized versions of the analog sensor signals along with the analog reference signal are output to a recordation system to provide supplemental processing and storage thereof.

ELECTROCARDIOGRAM PATCH DEVICES AND METHODS

Methods and apparatuses, including devices and systems, for remote and detection and/or diagnosis of acute myocardial infarction (AMI). In particular, described herein are handheld and adhesive devices having an electrode configuration capable of recording three orthogonal ECG lead signals in an orientation-specific manner, and transmitting these signals to a processor. The processor may be remote or local, and it may automatically or semi-automatically detect AMI, atrial fibrillation or other heart disorders based on the analyses of the deviation of the recorded 3 cardiac signals with respect to previously stored baseline recordings. 1. A method , the method comprising:adhesively attaching a patch on a patient's chest so that a first electrode and a second electrode integrated on a back of the patch measure bioelectric signals from the patient's chest, wherein the first and second electrodes are positioned a distance of at least 5 cm apart;acquiring a baseline electrocardiogram (ECG) shortly after adhesively attaching the patch to the patient's chest when the patient contacts a third electrode on the patch with a finger of a first hand and a fourth electrode on the patch with a finger of a second hand, wherein the baseline ECG comprises three orthogonal, or quasi-orthogonal, leads generated from the first, second third and fourth electrodes; andupdating the baseline ECG over one or more subsequent days when the patient contacts the third electrode on the patch with the finger of the first hand and the fourth electrode on the patch with the finger of a second hand when the patient indicates, on the patch, that symptoms are not present, wherein the baseline ECG recording comprises three orthogonal, or quasi-orthogonal, leads generated from the first, second third and fourth electrodes.2. The method of claim 1 , further comprising storing the baseline ECG.3. The method of claim 1 , further comprising recording a symptomatic ECG when the patient indicates claim 1 , on ...

ALGORITHMIC TECHNIQUES FOR DEDUCTION OF FUNCTIONAL CHARACTERISTICS OF CARDIAC TISSUE IN CARDIAC ELECTRICAL FIBRILLATION FROM A DENSELY PACKED ARRAY OF HIGH-RESOLUTION ELECTRODES

The present disclosure describes cardiac mapping techniques that find particular use in assessing fibrillation, and which also improve the ability to correctly identify local activation time from signals in any rhythm. 1. A method for cardiac mapping of a patient comprising:positioning a two-dimensional electrode array at a location in a patient's heart, wherein the two-dimensional electrode array comprises a plurality of electrodes arranged in a nonlinear configuration distributed across the array at known locations and each electrode is separated by a known distance;simultaneously detecting at least one local activation signal and activation time at each electrode of the array; andcalculating a conduction velocity (CV) vector for a first electrode of the array using the activation time of the first electrode, the activation time of a second electrode, and the activation time of at least a third electrode; thereby to construct a map of cardiac electrical activity.2. The method of claim 1 , wherein calculating further comprises:determining the activation time of the local activation signal for the first electrode, the second electrode, and the third electrode;obtaining the difference between the activation time of the first electrode and the second electrode, between the activation time of the second electrode and the third electrode, and the first electrode and the third electrode;obtaining the respective distances between each of the first, second, and third electrodes;calculating a velocity vector between each of the first, second, and third electrode; andcombining the velocity vectors.3. The method of claim 1 , wherein a CV vector is determined with respect to a group of electrodes of the array using the activation time of a first electrode and the activation times of at least two adjacent electrodes.4. The method of claim 3 , further comprising compiling an isochronal activation map comprising the two-dimensional electrode array and the CV vector for each group ...

Methods, systems and non-transitory computer-readable recording media for monitoring blood pressure in real time

Methods, systems, and non-transitory computer-readable recording media for monitoring blood pressure are provided. The method includes calculating an estimate of deviations between every two pulse transit time (PTT) values measured at an interval of a first period, and estimating a PTT value to be measured the first period after a current time. The method also includes calculating an estimate of deviations between every two oxygen saturation values measured at an interval of a second period, and estimating an oxygen saturation value to be measured the second period after the current time. The method additionally includes calculating current systolic blood pressure and diastolic blood pressure based on an electrocardiogram (ECG) value measured at the current time, the estimated PTT value, and the estimated oxygen saturation value.

Electrical-signal-based electrode-tissue contact detection

A method includes disposing a pair of current-application electrodes in or on a body, including disposing an intrarenal current-application electrode of the pair in a renal artery. Two or more sensing electrodes are disposed in or on the body, including disposing one of the sensing electrodes on en external surface of skin. Control circuitry is activated to (a) apply an electrical current between the pair of current-application electrodes, (b) while applying the electrical current, sense an electrical signal between the sensing electrodes, including the sensing electrode disposed on the external surface of the skin, and (c) based on the electrical signal, ascertain a level of contact between the intrarenal current-application electrode and a wall of the renal artery. In response to the level of contact being less than a threshold level of contact, a disposition of the intrarenal current-application electrode in the renal artery is adjusted.

Method and device for determining and presenting surface charge and dipole densities on cardiac walls

The invention discloses a method, a system, a computer program and a device for determining the surface charge and/or dipole densities on heart walls. Using the foregoing, a table of dipole densities ν(P′, t) and/or a table of surface charge densities ρ(P′, t) of a given heart chamber can be generated.

Medical devices for mapping cardiac tissue

Medical devices and methods for making and using medical devices are disclosed. An example method may include a method of mapping the electrical activity of a heart. The method may include sensing a plurality of signals with a plurality of electrodes positioned within the heart, determining a dominant frequency of the plurality of signals and generating an alternate signal for each of the plurality of signals corresponding to the dominant frequency. The alternate signals may have a phase-shift corresponding to one of the plurality of signals. The method may also include displaying a characteristic of the alternate signal over time.

Mapping ablation catheter

A mapping ablation catheter is provided comprising: a catheter conduit having a hollow inner space in which a guide member is disposed; a monitoring electrode unit arranged to surround the outer circumferential surface of the distal portion of the catheter conduit and perform a mapping on the lesion region by being in side-contact with a cardiac organ; an ablation electrode unit arranged to be spaced apart from the monitoring electrode unit and surround the outer circumferential surface of the distal portion of the catheter conduit and which removes the lesion region; a plurality of liquid discharge holes arranged on the outer circumferential surface of the ablation electrode; a current application unit which applies current to the monitoring electrode unit and the ablation electrode unit; and a liquid supply unit having a liquid supply tube, one end of the liquid-supply tube connected to the liquid discharge holes in the catheter conduit.

SYSTEMS AND METHODS FOR MODIFYING GEOMETRY SURFACE MODELS USING ELECTROPHYSIOLOGY MEASUREMENTS

Systems and methods for modifying a geometry surface model using electrophysiology (EP) measurements are provided. A system includes a device including at least one sensor configured to collect a set of location data points, and collect EP data at a measurement point. The system further includes a computer-based model construction system coupled to the device and configured to generate an original surface based on the set of location data points, the original surface including a plurality of corner points and a plurality of surface segments extending between the plurality of corner points, modify the original surface, based on the measurement point, to generate a modified surface, and map the EP data for the measurement point to the modified surface. 1. A system for modifying a geometry surface model using electrophysiology (EP) measurements , the system comprising: collect a set of location data points; and', 'collect EP data at a measurement point; and, 'a device comprising at least one sensor configured to generate an original surface based on the set of location data points, the original surface including a plurality of corner points and a plurality of surface segments extending between the plurality of corner points;', 'modify the original surface, based on the measurement point, to generate a modified surface; and', 'map the EP data for the measurement point to the modified surface., 'a computer-based model construction system coupled to the device and configured to2. The system of claim 1 , wherein to modify the original surface claim 1 , the computer-based model construction system is configured to modify the original surface to include the measurement point.3. The system of claim 1 , wherein to modify the original surface claim 1 , the computer-based model construction system is configured to:for each corner of the plurality of corner points, calculate a distance between the corner point and the measurement point; andmodify the original surface based on the ...

Biomedical electrode pad, biological signal processing device, and combination thereof

A biomedical electrode including: an attachment sheet being elastically stretchable and contractible with an electrically insulating property on a back surface side, an adhesive surface suitable for attachment to the skin; a plurality of electrodes located apart from one another on the back surface side of the attachment sheet and exposed on the back surface side; a plurality of connecting parts located at a central part on the back surface side of the attachment sheet and covered with electrical insulation while being exposed toward a front surface side through openings of the attachment sheet; and electrode connecting wires located on the back surface side of the attachment sheet and covered with electrical insulation that electrically connect respective ones of the plurality of electrodes with corresponding ones of the plurality of connecting parts, wherein at least one of the electrode connecting wires extends in a stretchable, contractible, and bendable manner.

Treatment Compliance Tracking by Measuring Symptoms with an Analytical Toilet

An analytical toilet comprising a bowl for receiving excreta from a user; a seat for the user; a sensor for detecting a symptom of the user; wherein the sensor transmits data to a processor that uses the data to measure a symptom of the user is disclosed. A method for monitoring a patient comprising providing an analytical toilet comprising: a bowl for receiving excreta from a user; a seat for the user; a sensor for detecting a symptom of the user; having a user use the toilet to deposit excreta; detecting a symptom of the user with the sensor; transmitting data from the sensor to a processor; and using the data to measure the symptom and compare it to the user's normal or expected symptoms is disclosed. 1. An analytical toilet comprising:a bowl for receiving excreta from a user;a seat for the user; anda sensor for detecting a symptom of the user;wherein the sensor transmits data to a processor that uses the data to measure a symptom of the user; andand the processor uses the symptom to track user compliance with medication or treatment regimen.2. The analytical toilet of wherein the symptom is a characteristic of the user's excreta.3. The analytical toilet of wherein the characteristic comprises volume claim 2 , flow rate claim 2 , color claim 2 , weight claim 2 , density claim 2 , content claim 2 , temperature claim 2 , clarity claim 2 , pH claim 2 , settled gradient claim 2 , or flow geometry of urine.4. The analytical toilet of wherein the characteristic comprises weight claim 2 , color claim 2 , consistency claim 2 , volume claim 2 , density claim 2 , content claim 2 , temperature claim 2 , pH claim 2 , size and shape claim 2 , excretion profile claim 2 , sounds claim 2 , or gas or fumes of feces.5. The analytical toilet of wherein the characteristic is the level of an analyte in the excreta.6. The analytical toilet of wherein the symptom is a characteristic of the user's cardiovascular system.7. The analytical toilet of wherein the characteristic comprises ...

Active implantable medical device for detecting a remodeling or reverse remodeling phenomenon of the patient

According to some embodiments, a device operates by comparative morphological analysis of depolarization signals collected in spontaneous rhythm on separate respective channels, with two temporal components combined into a single 2D parametric VGM vectogram characteristic. Similarity quantification methods evaluate a variation over time of a descriptor parameter of a current VGM compared to a stored previous reference VGM. This variation is compared with predetermined thresholds to diagnose an occurrence of remodeling or reverse remodeling in a patient, and/or to detect a lead failure or an occurrence of ischemia. The descriptor parameter is a function of a velocity vector of the VGM, a comparison relating to a correlation coefficient between respective magnitudes of a current VGM velocity vector and of a reference VGM velocity vector, and an average angle between these respective velocity vectors.

Active implantable medical device for the diagnosis of cardiac decompensation

The disclosure relates to a device including a plurality of electrodes for stimulation of both ventricles with application of an atrioventricular delay and of an interventricular delay, a processor configured to multidimensionally measure an interventricular conduction delay, and monitor the evolution of a patient's condition. For the multidimensional measurement of the interventricular conduction delay, the device produces stimulation of one of the ventricles and collects, in the other ventricle, two endocardial electrogram signals on separate respective channels, giving two respective temporal components. Both temporal components are combined in one single parametric 2D characteristic representative of the cardiac cycle, and a comparison is made with reference descriptors for deriving an index representative of the evolution of the patient's condition.

Medical-mapping device

A medical-mapping device includes an elongated electrode-support assembly having spaced-apart electrodes configured to be maneuverable, at least in part, into, and along, a confined space of a patient. The spaced-apart electrodes are configured to be selectively movable between a storage position and a deployment position.

Patient screening and ecg belt for brady therapy tuning

Cardiac electrical activity is monitored from tissue of the patient using the plurality of external electrodes. One or more cardiac metrics of the patient are generated based on the monitored electrical activity. It is determined whether the patient is a candidate for a cardiac resynchronization therapy (CRT) device based on a first global dyssynchrony metric using the one or more cardiac metrics if the patient has a right bundle branch block. It is determined whether the patient is a candidate for a cardiac resynchronization therapy (CRT) device based on a second global dyssynchrony metric using the one or more cardiac metrics if the patient does not have a right bundle branch block.

STABLE CARDIAC SIGNAL IDENTIFICATION

Systems and methods are described herein for determining whether or not each of a plurality of cardiac signals monitored from a plurality of electrodes is stable. A dispersion signal may be generated based on the plurality of cardiac signals, and low dispersion time period may be selected within which the cardiac signals may be analyzed for stability. 1. A system comprising:electrode apparatus comprising a plurality of electrodes to monitor electrical activity from tissue of a patient; and monitor electrical activity using the plurality of electrodes to generate a plurality of cardiac signals over an analysis time period,', 'generate a dispersion signal from the plurality of cardiac signals, wherein the dispersion signal is representative of the dispersion of the plurality of cardiac signals over the analysis time period,', 'select a low dispersion time period within the analysis time period based on rate of change of the dispersion signal, and', 'determine whether each of the plurality of cardiac signals is stable based on the cardiac signal within the low dispersion time period., 'computing apparatus comprising processing circuitry and coupled to the electrode apparatus, the computing apparatus configured to2. The system of claim 1 , wherein generating a dispersion signal from the plurality of cardiac signals comprises determining a standard deviation of the plurality of cardiac signals over the analysis time period.3. The system of claim 1 , wherein selecting the low dispersion time period within the analysis time period based on rate of change of the dispersion signal comprises:determining a minimum rate of change of the dispersion signal over a sliding window within the analysis time period; andidentifying the low dispersion time period based on the determined minimum rate of change of the dispersion signal over the sliding window.4. The system of claim 3 , wherein the low dispersion time period and the sliding window are less than or equal to 200 milliseconds. ...

CONNECTION QUALITY ASSESSMENT FOR EEG ELECTRODE ARRAYS

Systems, devices, and methods are provided to assess connection quality between the electrodes of a bioelectrical signal measurement and/or electrical stimulation device and the tissue, typically skin, of the subject. A test signal is provided to a first electrode, voltage differences between the first electrode and additional electrodes are determined, an impedance of the first electrode is determined based on the voltages differences, and the determined impedance indicates connection quality. This process is typically repeated for all of the electrodes to determine connection quality. The user or subject can be alerted if the connection quality is poor, and the bioelectrical signal that is recorded can be provided with data points indicating connection quality during the signal recording. 1(a) providing an electrical sensor or stimulator comprising a plurality of electrodes;(b) contacting the plurality of electrodes to tissue of a subject;(c) providing a test signal to the tissue of the subject through a first electrode of the plurality of electrodes;(d) determining, with a processor coupled to the plurality of electrodes, a voltage difference between the first electrode and only one other electrode of the plurality of electrodes in response to the test signal, wherein the voltage difference is determined with neither the first electrode nor the only one other electrode being a common ground or a common reference electrode;(e) determining, with a processor coupled to the plurality of electrodes, an impedance of the first electrode in response to the determined voltage difference between the first electrode and the only one other electrode of the plurality of electrodes;(f) repeating steps (d) and (e) for the first electrode and other electrodes of the plurality of electrodes; and(g) notifying, with an output device coupled to the processor, one or more of the subject or a user that connection quality of the first electrode is poor if the determined impedance of ...

Systems and Methods for Confirmation of Prior Catheter Tip Placement

A catheter assembly including one or more conductive pathways to assist with placement of the catheter assembly into a patient's vasculature by enabling ECG signals emanating from the patient's heart to be detected, and a method for reconfirming an initial position of a distal end of a catheter tube of the catheter assembly. The conductive pathways can be configured to reconfirm via ECG signal detection proper placement of the catheter tube at a time subsequent to initial catheter placement into the vasculature. The catheter assembly can include an outer conductive pathway deposited on an outer surface of the catheter tube. The outer conductive pathway can have a distal end located distal to a portion of the catheter tube at a skin insertion site when the catheter tube is inserted into a patient. 1. A method for reconfirming an initial position of a distal end of a catheter tube positioned in a patient , the catheter tube part of a catheter assembly , the method comprising:detecting an intravascular ECG signal via an inner conductive pathway in a lumen of the catheter tube;detecting a reference ECG signal via an outer conductive pathway deposited on an outer surface of the catheter tube;determining a current position of the distal end of the catheter tube based on detection of the intravascular ECG signal and the reference ECG signal; andcomparing the current position of the distal end of the catheter tube with the initial position of the distal end of the catheter tube.2. The method according to claim 1 , wherein detection of the intravascular ECG signal and the reference ECG signal produces a lead configuration according to Einthoven's triangle of electrocardiography.3. The method according to claim 1 , wherein the inner conductive pathway is defined by a conductive stylet configured for insertion into the lumen of the catheter tube.4. The method according to claim 3 , wherein the conductive stylet is configured to operably connect with a conductive solution ...

Controlled and precise treatment of cardiac tissues

Compositions, systems, devices, and methods for performing precise chemical treatment of tissues are disclosed. Systems, devices, and methods for administering a chemical agent to one or more a precise regions within a tissue mass are disclosed. Compositions, systems, devices, and methods for treating targeted regions within a tissue mass are disclosed. Systems, devices, and methods for identifying, localizing, monitoring neural traffic in the vicinity of, quantifying neural traffic in the vicinity of, and mapping neural traffic near targeted regions within a tissue mass are disclosed.

WEARABLE CARDIOVERTER DEFIBRILLATOR (WCD) WITH LOW FALSE ALARM RATE

A wearable cardioverter defibrillator (WCD) comprises a plurality of electrocardiography (ECG) electrodes, a right-leg drive (RLD) electrode, and a plurality of defibrillator electrodes to contact the patient's skin when the WCD is delivering therapy to the patient, a preamplifier coupled to the ECG electrodes and the RLD electrode to obtain ECG data from the patient as one or more ECG vectors, a processor to receive ECG data from the preamplifier and an abort signal from a user interface, an isolation barrier to isolate the preamplifier from the processor, and a high voltage subsystem to provide a defibrillation voltage to the patient through the defibrillator electrodes in response to a shock signal received from the processor. A shock is provided when an abort signal is not received within a predetermined time period of a shock criterion being met. Less than one false alarm occurs every ten patient-days. 112-. (canceled)13. A method to determine whether a defibrillation shock should be applied with a wearable cardioverter defibrillator (WCD) , the method comprising:receiving electrocardiography (ECG) data from a patient using the WCD with a preamplifier coupled to one or more ECG electrodes and a right-leg drive (RLD) electrode coupled to the patient's skin to obtain ECG data from the patient as one or more ECG vectors;receiving ECG data from the preamplifier with a processor;determining with the processor if a shock criterion is met based on a combination of heart rate data and a width of one or more QRS pulses identified in the ECG data;signaling the patient that the defibrillation shock is about to be applied; andapplying the defibrillation shock to the patient unless a stop shock signal is caused by the patient within a predetermined period of time after signaling the patient;wherein the processor is to determine when a shock criterion is met based on the ECG data from the preamplifier, and to provide the defibrillation shock in the event the shock criterion ...

Imaging to determine electrode geometry

A method includes placing a set of electrodes on a body surface of a patient's body. The method also includes digitizing locations for the electrodes across the body surface based on one or more image frames using range imaging and/or monoscopic imaging. The method also includes estimating locations for hidden ones of the electrodes on the body surface not visible during the range imaging and/or monoscopic imaging. The method also includes registering the location for the electrodes on the body surface with predetermined geometry information that includes the body surface and an anatomical envelope within the patient's body. The method also includes storing geometry data in non-transitory memory based on the registration to define spatial relationships between the electrodes and the anatomical envelope.

Imaging to determine electrode geometry

A method includes placing a set of electrodes on a body surface of a patient's body. The method also includes digitizing locations for the electrodes across the body surface based on one or more image frames using range imaging and/or monoscopic imaging. The method also includes estimating locations for hidden ones of the electrodes on the body surface not visible during the range imaging and/or monoscopic imaging. The method also includes registering the location for the electrodes on the body surface with predetermined geometry information that includes the body surface and an anatomical envelope within the patient's body. The method also includes storing geometry data in non-transitory memory based on the registration to define spatial relationships between the electrodes and the anatomical envelope.

System and method to define drivers of sources associated with biological rhythm disorders

A system and method are provided for identifying a driver of a source associated with a heart rhythm disorder. Data are accessed from a plurality of sensors representing biological activity in the heart. A local first region of the heart that has repeating activation and determine whether the first region controls a second distant region of the heart for at least a predetermined number of beats is identified. The first local region is assigned as a driver of a source of the heart rhythm disorder, the source including the first local region and the second distant region.

Diagnostic Testing Headband

A diagnostic headband has an elongated body with two ends. A mechanism couples the two ends with one another. At least one first lead is coupled with the body. At least one second lead extends from the body. The leads couple with lead pads on the user. An electrical harness is coupled with the body. The electrical harness electrically couples with the at least one first and second leads.

Electrocardiogram sensor ring

An electrocardiogram (ECG) sensor has a flexible thin ring-shaped substrate configured to be worn about a patient's finger. The substrate has an inner surface and an outer surface opposite the inner surface. A first ECG electrode is positioned at the outer surface of said substrate and a second ECG electrode is positioned at the inner (or outer) surface of the said substrate in contact with the finger (or the adjacent finger if the electrode is on the outer surface), whereby the two ECG electrodes receives a single-lead ECG signal when the first electrode is touched to the patient's body. Touching different locations on the body or wearing multiple rings can provide multi-lead ECG measurements. The ring shape can be converted to a wearable patch for continuous ECG measurements.

Wearable defibrillator with audio input/output

A wearable device and method of monitoring the condition of a patient. The wearable device includes at least one sensor and at least one processor operatively connected to the at least one sensor. The wearable device also includes an operator interface device operatively connected to the at least one processor. The at least one processor causes the device to allow for customization of at least one output message to be delivered via the operator interface device.

ADHESIVE PHYSIOLOGICAL MONITORING DEVICE

The present disclosure relates to a cardiac monitoring device and systems/methods relating to same. Preferred embodiments may include adhesive layers having channels for transpiring moisture to promote long term adhesion of the device to a subject. The adhesive layer may be surrounded by a non-adhesive lining to inhibit substrate layers from folding under the adhesive. In some embodiments, the adhesive layer may be replaceable. In some embodiments, the adhesive layer may extend beneath a substrate coupled to a housing but not be adhered to the overlying substrate layers. The angles of the edges of the adhesive layer may be configured to minimize peeling forces. Substrate layers above the adhesive layer may be perforated to promote transpiration of moisture and/or provide conformability to the substrate. The perforations may promote anisotropic resistance to compression and/or extension of the substrate. 1. An electronic device for monitoring physiological signals in a user , the device comprising:a housing enclosing a circuit board;a flexible wing extending from the housing and configured to conform to a surface of the user, the flexible wing having a bottom surface, a top surface, and a thickness between the bottom surface and the top surface;an electrode coupled to the flexible wing, the electrode in electrical communication with the circuit board and being configured to be positioned in conformal contact with the surface of the user to detect the physiological signals; andan adhesive layer coupled to the bottom surface of the flexible wing for adhering the electronic device to the user, the adhesive layer having a lower surface, an upper surface interfacing with the bottom surface of the flexible wing, and a thickness between the lower surface and the upper surface,wherein the adhesive layer comprises a plurality of channels extending from the lower surface to the upper surface of the adhesive layer, the plurality of channels configured to transport moisture from ...

WEARABLE DEVICE WITH BRIDGE PORTION

The present disclosure relates to a wearable device with a bridge portion and systems/methods relating to the device. Preferred embodiments may include two flexible wings and a bridge connecting the two wings. In some embodiments, the upper surface of the bridge can be non-adhesive and uncoupled to the flexible wing such that the flexible wing can be decoupled from the bridge when the adhesive is adhered to the surface of a user. The bridge can be narrower in some portions, and extend around the housing of the monitor. The bridge can extend beneath the housing and bisect the two flexible wings. 1. A wearable device configured to attach to a user , the device comprising:a housing enclosing a circuit board;a first flexible wing and a second flexible wing, each flexible wing extending from the housing and configured to conform to a surface of the user, each flexible wing having a bottom surface, a top surface, and a thickness between the bottom surface and the top surface, the first flexible wing being positioned substantially opposite the second flexible wing relative to the housing along a longitudinal axis;a first electrode coupled to the first flexible wing, the first electrode in electrical communication with the circuit board and being configured to be positioned in conformal contact with the surface of the user to detect the physiological signals;a second electrode coupled to the second flexible wing, the second electrode in electrical communication with the circuit board and being configured to be positioned in conformal contact with the surface of the user to detect the physiological signals; andan adhesive layer coupled to the bottom surface of the first flexible wing and the bottom surface of the second flexible wing for adhering the wearable device to the user, the adhesive layer having a lower surface, an upper surface interfacing with the bottom surface of the flexible wings, and a thickness between the lower surface and the upper surface,wherein the ...