Настройки

Укажите год
-

Небесная энциклопедия

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 9249. Отображено 100.
14-03-2013 дата публикации

METHOD AND SYSTEM FOR GENERATING PHYSIOLOGICAL SIGNALS WITH FABRIC CAPACITIVE SENSORS

Номер: US20130066168A1
Автор: Yang Chang-Ming, Yang Ching Wen, YANG Hao, Yang Tzulin
Принадлежит:

A system for generating physiological signals using a cloth capacitive sensor, includes a cloth, at least one conductive area arranged on the cloth, a signal circuit; a capacitive sensor formed between the cloth and a human body; a resistor R, a capacitor C, an inductor L, an operational amplifier, a diode, a Schmitt trigger, CMOS, a transistor, or an IC, connected with the cloth capacitive sensor to form a charge and discharge circuit to change a signal range of frequency, cycle, voltage or current; wherein when a force, pressure, tensile force, torsion or tension is applied between the human body and the cloth, the capacitance changes, the circuit sends a signal, and the system receives the change in capacitance between the conductive cloth and the human body; wherein the change is represented by a frequency, cycle, voltage or current change. 154.-. (canceled)55. A system for generating physiological signals using a cloth capacitive sensor , comprisingat least a piece of cloth,at least one conductive area arranged on the cloth,a signal circuit;a capacitive sensor formed between the conductive cloth and a human body;a resistor R, a capacitor C, an inductor L, an operational amplifier, a diode, a Schmitt trigger, CMOS, a transistor, or an IC, connected, in series or in parallel, with the cloth capacitive sensor to form a charge and discharge circuit to change a signal range of frequency, cycle, voltage or current;wherein when a force, pressure, tensile force, torsion or tension is applied between the human body and the cloth, the capacitance changes, the circuit sends a signal, and the system receives the change in capacitance between the conductive cloth and the human body; wherein the change is represented by a frequency, cycle, voltage or current change, which is used to analyze at least one information of physiological and posture changes of human body, medium change between the human body and the cloth, or information of force applied.56. The system for ...

Подробнее
Номер записи: 1
21-03-2013 дата публикации

Physiological Sensor Placement and Signal Transmission Device

Номер: US20130072777A1
Автор: Tremblay Kathleen
Принадлежит: TYCO HEALTHCARE GROUP LP

A garment is used to facilitate the placement of biomedical sensors or other electrodes on the body. The garment is comfortable and allows freedom of movement much like typical clothing. Textile based electrical components are included in the garment which are capable of transmitting an electrical signal to and from various external electrodes placed on the body. A textile based EMI shield protects the signals from electromagnetic interference. The garment may take any form such as a vest, sports bra, long sleeve shirt, bonnet, or other form and may provide access to an electrode placement site without requiring removal of the garment. 1. An apparatus for facilitating connection of a biomedical electrode array having one or more electrodes to a monitoring , diagnostic , or stimulating device , which comprises:a garment member for positioning relative to a body portion of a subject;at least one signal transmission pathway including a conductive thread stitched into the garment member such that the conductive thread is passed through the garment member to connect the signal transmission pathway to the garment member, the at least one signal transmission pathway having a first end connectable to an electrode and a second end connectable to the monitoring, diagnostic, or stimulating device, the at least one signal transmission pathway adapted for transmitting signals between the electrode and the monitoring, diagnostic, or stimulating device.2. The apparatus according to wherein the electrode is an ECG electrode.3. The apparatus according to including a plurality of signal transmission pathways stitched into the garment member for transmitting signals between respective electrodes and the monitoring claim 1 , diagnostic or stimulating device.4. The apparatus according to including a connector associated with the first end of each of the signal transmission pathways for connection to a respective electrode.5. The apparatus according to wherein at least one connector is ...

Подробнее
Номер записи: 2
21-03-2013 дата публикации

Redundant connections to picafina probing device

Номер: US20130072778A1
Автор: Lee Chong Il, Monteiro Sergio Lara Pereira
Принадлежит:

A picafina device that is an electrode for measurement of neuron electrical activity where the number of measurement points is very large, and methods of selecting a subset of available measuring electrodes on the surface of the device. The device can keep the selection for a predetermined length of time, or for an indefinite length of time, both under control of the researcher or the neurosurgeon. Selecting a different measuring pad, or a combination of pads, is equivalent to making measurement at a different location or on a nearby neuron. Several parallel measurements can be made, in which case correlations can be made between the firing of different neurons. 1. A device for measuring an electrical signal occurring in body cells of an animal , including a human animal , comprising:a picafina generally cylindrical device body with a proximal extremity, a distal extremity, an inner lumen and an outer surface;a plurality of measuring electrode tips on the outer surface of the picafina in fixed relative positions to the distal extremity;a first plurality of wires running inside the lumen wherein the first plurality of wires have wires comprising at least one element from the group: electric power wires, binary information wires, and signal carrying wires;a plurality of first on/off switches, each of the first on/off switches associated with one of the measuring electrode tips for selecting the associated measuring electrode tip;a plurality of second on/off switches, each of the second on/off switches associated with one of the signal carrying wires running inside the lumen;a device connector at the proximal extremity of the picafina to connect the first plurality of wires in the lumen to additional wires outside the picafina device body, the additional wires outside the picafina for connecting to at least one element of the group: a measuring and/or recording instrument, an electric energy storage, a control electronics;wherein the measuring electrode tips are ...

Подробнее
Номер записи: 3
28-03-2013 дата публикации

Implantable Microphone Noise Suppression

Номер: US20130079634A1
Автор: Kerber Martin J.
Принадлежит: MED-EL Elektromedizinische Geraete GmbH

A system and method are described for an implantable sensing system. An implantable sensor generates a sensing signal representative of an internal sensing location of a user. A sensing gate, coupled to the sensor and responsive to the sensing signal, has a sensing gate threshold value such that the sensing signal is coupled from the sensing gate to an implanted signal processor when the sensing signal has a magnitude greater than the sensing gate threshold value, and the sensing signal is blocked when the sensing signal has a magnitude less than the sensing gate threshold value. 1. A method for an implantable sensing system comprising:generating a sensing signal representative of an internal sensing location of a user;coupling the sensing signal to a sensing gate having a sensing gate threshold value;comparing the sensing signal to the sensing gate threshold value;when the sensing signal is greater than the sensing gate threshold value, coupling the sensing signal from the sensing gate to an implanted signal processor; andwhen the sensing signal is less than the sensing gate threshold value, blocking the sensing signal.2. A method according to claim 1 , wherein the sensing gate threshold value is user-controllable.3. A method according to claim 1 , wherein the sensing gate threshold value is software-controllable.4. A method according to claim 1 , wherein the sensing gate includes a sleep mode in which the sensing gate threshold value is set to a high value for reducing noise for sleeping.5. A method according to claim 1 , wherein the sensing signal is a pressure signal.6. A method according to claim 5 , wherein the pressure signal is a microphone signal.7. A method according to claim 1 , wherein the sensing signal is an electromyography signal.8. A method according to claim 1 , wherein the sensing signal is one of an electroencephalography signal and an electroneurography signal.9. A method according to claim 1 , wherein the sensing signal is an ultrasound signal. ...

Подробнее
Номер записи: 4
28-03-2013 дата публикации

Assessment of cardiac health based on heart rate variability

Номер: US20130079652A1
Автор: Elyasaf Korenweitz
Принадлежит: Vitalcare Medical Ltd

A diagnostic method includes receiving data comprising a series of heartbeat intervals acquired from a patient ( 22 ). A first type of computation, selected from a group of computation types consisting of time-domain analysis ( 82 ), frequency-domain analysis ( 84 ), and nonlinear fractal analysis ( 86 ), is applied to the data in order to compute a first measure of heart rate variability (HRV) of the patient. A second type of computation, selected from the group and different from the first type, is applied to the data in order to compute a second measure of the HRV of the patient. At least the first and second measures are combined so as to derive a parameter indicative of a condition of cardiac health of the patient.

Подробнее
Номер записи: 5
04-04-2013 дата публикации

ADHERENT DEVICE WITH MULTIPLE PHYSIOLOGICAL SENSORS

Номер: US20130085347A1
Автор: Amurthur Badri, Bly Mark J., James Kristofer J., Libbus Imad, Manicka Yatheendhar D., Mazar Scott T., Wang Jerry S.
Принадлежит: CORVENTIS, INC.

An adherent device to monitor a patient comprises an adhesive patch to adhere to a skin of the patient. At least four electrodes are connected to the patch and capable of electrically coupling to the patient. Impedance circuitry is coupled to the at least four electrodes to measure a hydration signal of the patient. Electrocardiogram circuitry is coupled to at least two of the at least four electrodes to measure an electrocardiogram signal of the patient. An accelerometer can be mechanically coupled to the adhesive patch to generate a signal in response to at least one of an activity or a position of the patient. 190-. (canceled)91. An adherent device to monitor a patient , the device comprising:an adhesive patch configured to adhere to the skin of the patient continuously for at least seven days;at least two electrodes connected to the patch and configured to electrically couple to the patient;a processor system coupled to the at least two electrodes and configured to monitor a physiologic signal of the patient using the electrodes and, based at least in part on the physiologic signal measured from the patient, detect a cardiac event of the patient; andwireless communications circuitry coupled to the processor, wherein the processor is further configured to communicate an alert via the wireless communications circuitry to a remote receiver in response to the detection of the cardiac event.92. The adherent device of claim 91 , wherein the cardiac event is an impending cardiac decompensation claim 91 , and the alert is an alert of the impending cardiac decompensation.93. The adherent device of claim 91 , wherein the processor is further configured to transmit data describing the physiologic signal via the wireless communications circuitry to the remote receiver.94. The adherent device of claim 91 , wherein:the physiologic signal is a first physiologic signal;the processor system is further configured to monitor a second physiologic signal of the patient; andthe alert ...

Подробнее
Номер записи: 6
04-04-2013 дата публикации

Haemodynamic monitoring device

Номер: US20130085357A1
Автор: Martin Peterreins, Stephan Joeken, Wolfgang Huber
Принадлежит: Individual

A relation is formed between an n-tuple having n components and formed at a first point in time and at least one other n-tuple having n components formed at at least one corresponding later point in time, wherein n is a natural number equal to or greater than 1, and the components comprise at least one derived parameter and/or one read-in data value. If this relationship satisfies a predetermined calibration criterion, a calibration signal is triggered and is displayed, and/or automatically triggers a recalibration of the haemodynamic monitoring device. For example, the pulse contour cardiac output PCCO is derived from the arterial pressure curve as the constituent component of a 1-tuple. As long as this differs from the reference cardiac output CO Ref by less than a predefined threshold value, for example 101 or 15% of the reference cardiac output, parameter determination continues without initiating a new calibration. On the other hand, if the deviation exceeds PCCO-CO ref I, the calibration signal is triggered.

Подробнее
Номер записи: 7
04-04-2013 дата публикации

DEVICE FOR INTERACTING WITH NEUROLOGICAL TISSUE AND METHODS OF MAKING AND USING THE SAME

Номер: US20130085361A1
Автор: Mercanzini André, Pollo Claudio, Renaud Philippe
Принадлежит:

Described herein are microelectrode array devices, and methods of fabrication, assembly and use of the same, to provide highly localized neural recording and/or neural stimulation to a neurological target. The device includes multiple microelectrode elements arranged protruding shafts. The protruding shafts are enclosed within an elongated probe shaft, and can be expanded from their enclosure. The microelectrode elements, and elongated probe shafts, are dimensioned in order to target small volumes of neurons located within the nervous system, such as in the deep brain region. Beneficially, the probe can be used to quickly identify the location of a neurological target, and remain implanted for long-term monitoring and/or stimulation. 1. An implantable neurological probe comprising:an elongated shaft having a distal end and an internal lumen;a support cylinder slidingly disposed in only a distal portion of the internal lumen;a plurality of shafts coupled to the support cylinder and arranged to be selectively extended from the distal end of the elongated shaft;a plurality of microelectrode elements disposed on each of the plurality of shafts, the microelectrode elements comprising a planar substrate having an insulative layer and a plurality of conductive traces disposed on the insulative layer,a stylet removably disposed in the internal lumen and configured to contact the support cylinder to selectively extend the plurality of shafts during implantation; anda pull wire coupled to the support cylinder to selectively retract the support cylinder and plurality of shafts within the internal lumen.2. The implantable neurological probe of claim 1 , comprising a push-pull rod which comprises the pull wire and the stylet.3. The implantable neurological probe of claim 1 , wherein the elongated shaft is configured for insertion into a human body using an accepted procedure for insertion of deep brain stimulation leads.4. The implantable neurological probe of claim 1 , wherein ...

Подробнее
Номер записи: 8
04-04-2013 дата публикации

METHOD AND SYSTEM FOR FACILITATING REMOTE MEDICAL DIAGNOSIS AND CONSULTATION

Номер: US20130085364A1
Автор: Jiang Lanzi, Lu Ying Chiang, Sundramoorthy Saravanan, Tan Kae Yuan, Teo Xiong Kai
Принадлежит: REKA HEALTH PTE LTD

A system for facilitating remote medical diagnosis and consultation of heart disease for a patient, the system comprising: a diagnostic device for performing Electrocardiography on the patient, a network device in communication with the diagnostic device via wired or wireless communication links, a software program pre-installed in the network device, a server located remotely, wherein during operation, the patient activates the diagnostic device which will perform Electrocardiography on the patient, the diagnostic device receives diagnostic data and transmits the diagnostic data to the network device, the software program transmit the diagnostic data to over a network to a server which a physician have access to, and based on the diagnostic data gathered by the server and some additional medical data, the physician can review the patient's health condition and offer an appropriate feedback and diagnosis for the patient. 1. A system for facilitating remote medical diagnosis and consultation of heart disease for a patient , the system comprising:a diagnostic device for performing Electrocardiography on the patient,a network device in communication with the diagnostic device via wired or wireless communication links,a software program pre-installed in the network device,a server located remotely,wherein during operation, the patient activates the diagnostic device which will perform Electrocardiography on the patient, the diagnostic device receives diagnostic data and transmits the diagnostic data to the network device, the software program transmit the diagnostic data to over a network to a server which a physician have access to, and based on the diagnostic data gathered by the server and some additional medical data, the physician can review the patient's health condition and offer an appropriate feedback and diagnosis for the patient.2. The system according to claim 1 , wherein the diagnostic device includes sensors which are electrically connected to an interface ...

Подробнее
Номер записи: 9
04-04-2013 дата публикации

METHOD AND APPARATUS FOR CLASSIFYING CARDIAC ARRHYTHMIA

Номер: US20130085405A1
Автор: Bera Deep, Bhatta Raghavendra Bobbi Shankaranarayana, Chakroborty Sandipan, Narayanan Rangavittal, Pankajakshan Praveen
Принадлежит:

A method and a device for classifying cardiac arrhythmia, using an electrocardiogram (ECG) signal, are provided. The method includes receiving the ECG signal representing an electrical activity of a heart of an individual over a period of time, the ECG signal including ECG beats. The method further includes converting each of the ECG beats into symbols. The method further includes identifying an arrhythmia class indicating a type of cardiac arrhythmia associated with the individual from arrhythmia classes indicating respective types of cardiac arrhythmia based on the symbols representing each of the ECG beats. 1. A method of classifying cardiac arrhythmia , using an electrocardiogram (ECG) signal , the method comprising:receiving the ECG signal representing an electrical activity of a heart of an individual over a period of time, the ECG signal comprising ECG beats;converting each of the ECG beats into symbols; andidentifying an arrhythmia class indicating a type of cardiac arrhythmia associated with the individual from arrhythmia classes indicating respective types of cardiac arrhythmia based on the symbols representing each of the ECG beats.2. The method of claim 1 , wherein the converting of each of the ECG beats comprises:detecting a R-peak of each of the ECG beats;segmenting a region of each of the ECG beats that is around the respective R-peak; andconverting the region of each of the ECG beats into the symbols.3. The method of claim 1 , wherein the identifying of the arrhythmia class comprises:determining a morphology similarity measure between each of the ECG beats and training beats corresponding to the respective arrhythmia classes by comparing the symbols representing each of the ECG beats and symbols representing each of the training beats;identifying an ECG beat from the ECG beats based on a training beat comprising a highest morphology similarity measure with the ECG beat;determining whether the highest morphology similarity measure associated with the ...

Подробнее
Номер записи: 10
11-04-2013 дата публикации

IMPLANTABLE MICRO-COMPONENT ELECTRODES

Номер: US20130090542A1
Автор: Deng Xiaopei, Kipke Daryl R., KOTOV Nicholas A., Kozai Takashi Daniel Yoshida, Lahann Joerg, Langhals Nick, PATEL Paras
Принадлежит: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

The present disclosure provides robust implantable micro-component electrodes that can be used in a variety of medical devices. The medical device may be a neural probe that can monitor or stimulate neural activity in an organism's brain, spine, nerves, or organs, for example. The micro-component electrode has a small physical profile, with ultra-thin dimensions, while having high strength and flexibility. The micro-electrode has an electrically conductive core material, e.g., carbon. The surface of the core material includes one or more electrically conductive regions coated with an electrically conductive material and one or more non-conductive regions having an electrically non-conductive biocompatible polymeric coating. Implantable devices having such micro-components are capable of implantation in an organism for very long durations. 1. An implantable micro-component electrode comprising:an electrically conductive core material;one or more electrically conductive regions disposed on the surface of the electrically conductive core material comprising an electrically conductive biocompatible coating;an electrically non-conductive biocompatible coating disposed on regions of the surface of the electrically conductive core material where the one or more electrically conductive regions are absent, wherein the micro-component electrode has at least one dimension of less than or equal to about 10 μm.2. An implantable micro-component electrode of claim 1 , wherein the electrically conductive core material that has an elastic tensile modulus of greater than or equal to about 200 GPa and a nominal value of stiffness of greater than or equal to about 5 GN/μm and the electrically non-conductive biocompatible coating has a thickness of less than 1 μm.3. The implantable micro-component electrode of claim 1 , wherein the electrically conductive core comprises carbon.4. The implantable micro-component electrode of claim 3 , wherein the electrically conductive core is selected ...

Подробнее
Номер записи: 11
11-04-2013 дата публикации

Method and device for detecting a critical hemodynamic event of a patient

Номер: US20130090566A1
Автор: Christian Meyer, Geert Guy Georges Morren, Jens Muhlsteff
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

The invention relates to a method and a device for detecting a critical physiological state of a patient, especially for detecting a critical hemodynamic event. A set of values of physiological parameters is measured, including the heart rate and the pulse arrival time. On the basis of these measurements, a risk assessment is performed including the allocation of a representation of the measured set of values as a vector in a vector space to a risk level representing the risk of the occurrence of a critical hemodynamic event.

Подробнее
Номер записи: 12
11-04-2013 дата публикации

Neurophysiologic Monitoring System

Номер: US20130090568A1
Автор: Farquhar Allen, Gharib James, Gorek Josef, Kim Albert, Layman Doug, Miles Patrick, Peterson Mark, Pothier Albert, Scholl Thomas
Принадлежит: Nu Vasive Inc.

The present invention relates to a system and methods generally aimed at surgery. More particularly, the present invention is directed at a system and related methods for performing surgical procedures and assessments involving the use of neurophysiology. 1. A system for avoiding harm to neural tissue during surgery , comprising:a control unit having a power supply and a processor programmed to receive user commands, activate stimulation in a plurality of predetermined modes, process signal data according to defined algorithms, display received parameters and processed data, and monitor system status;a patient module in communication with said control unit and configured to be positioned within the sterile field of surgery, said patient module including signal conditioning circuitry, stimulator drive circuitry, and signal conditioning circuitry required to perform said stimulation in said predetermined modes, said patient module including a processor programmed to perform a plurality of predetermined functions including at least two of static pedicle integrity testing, dynamic pedicle integrity testing, nerve proximity detection, neuromuscular pathway assessment, manual motor evoked potential monitoring, automatic motor evoked potential monitoring, somatosensory evoked potential monitoring, non-evoked monitoring, and surgical navigation; anda plurality of surgical accessories adapted to be coupled to said patient module to perform said predetermined functions.2. The system of claim 1 , wherein said patient module automatically identifies the respective surgical accessory upon being coupled to said patient module.3. The system of claim 1 , wherein said patient module automatically conducts a continuity check when a respective surgical accessory upon being coupled to said patient module.4. The system of claim 3 , wherein said patient module includes a display for communicating at least one of alpha-numeric and graphical indicia to a user regarding at least one of said ...

Подробнее
Номер записи: 13
18-04-2013 дата публикации

SYSTEM AND METHOD FOR EVALUATING AN ELECTROPHYSIOLOGICAL SIGNAL

Номер: US20130096394A1
Автор: Gupta Sunny, Yazdi Mohsen Najafi
Принадлежит: ANALYTICS4LIFE

A method of evaluating an electrophysiological signal is disclosed. A mathematical reconstruction over at least one cycle of the electrophysiological signal is used to identify an abnormal substrate. A non-transitory computer readable medium is also disclosed. The nontransitory computer readable medium has stored thereon instructions for identifying a pathological substrate from a mathematical reconstruction of an electrophysiological signal, which, when executed by a processor, causes the processor to perform steps comprising using a mathematical reconstruction over many cycles of the electrophysiological signal to identify a pathological state. A system for evaluating an electrophysiological signal includes a processor configured to identify a pathological condition from a mathematical reconstruction of the electrophysiological signal. The system also includes a data input coupled to the processor and configured to provide the processor with the electrophysiological signal. The system further includes a user interface coupled to either the processor or the data input. 1. A method of evaluating an electrophysiological signal , comprising:receiving an electrophysiological signal;applying, using a processor of a computing device, a model-derived reconstruction using a summation series of complex exponentials over at least one cycle of the electrophysiological signal to identify a pathological substrate; anddisplaying, on a user interface, one or more indicators of the electrophysiological signal to represent at least a portion of the electrophysiological signal and the pathological condition of the substrate and predict the risk for adverse clinical outcomes2. The method of claim 1 , wherein the complex exponentials of the model-derived reconstruction of the electrophysiological signal comprises an input/output (I/O) expansion of the electrophysiological signal claim 1 , in which at least one of the terms of the I/O expansion are fractionally differentiable and ...

Подробнее
Номер записи: 14
18-04-2013 дата публикации

IMAGING EPILEPSY SOURCES FROM ELECTROPHYSIOLOGICAL MEASUREMENTS

Номер: US20130096408A1
Автор: He Bin, Yang Lin
Принадлежит: REGENT OF THE UNIVERSITY OF MINNESOTA

An example includes a method of imaging brain activity. The method includes receiving signals corresponding to neuronal activity of the brain. The signals are based on a plurality of scalp sensors (). The method also includes decomposing the signals into spatial and temporal independent components (). In addition, the method includes localizing a plurality of sources corresponding to the independent components. The method includes generating a spatio-temporal representation of neural activity based on the plurality of sources. 1. A method of imaging brain activity comprising:receiving signals corresponding to electrical activity of a brain, the signals based on a plurality of scalp sensors;decomposing the signals into spatial and temporal independent components;localizing a plurality of sources corresponding to independent components selected based on spatial, temporal or spectral features of interest; andgenerating a spatio-temporal representation of electrical activity based on the plurality of sources.2. The method of wherein receiving signals includes at least one of receiving MEG data or receiving EEG data.3. The method of wherein decomposing the signals includes executing an independent component analysis.4. The method of wherein localizing the plurality of sources includes estimating a source distribution using the independent components.5. The method of wherein localizing the plurality of sources includes generating a time-frequency representation of EEG data or generating a time-frequency representation of data corresponding to an independent component.6. The method of wherein generating the spatio-temporal representation includes displaying source distribution within a three dimensional space of the brain.7. The method of further including selecting a surgical intervention site based on the spatio-temporal representation.8. A system for analyzing electrical activity of an organ claim 1 , the system comprising:an input module configured to receive data ...

Подробнее
Номер записи: 15
18-04-2013 дата публикации

BIOLOGICAL INFORMATION DETECTION DEVICE

Номер: US20130096411A1
Автор: KATO Teruo, OKUDA Hideki, TERASAWA Dai
Принадлежит:

Provided is a heartbeat measurement device including a main body portion, a heartbeat detection portion, formed integrally the main body portion, which has electrodes that come into contact with a biological surface, a fixing band, formed so as to cover the main body portion and the heartbeat detection portion, which fixes the main body portion and the heartbeat detection portion to a user. 1. A biological information detection device comprising:a device main body;a biological signal detection portion, formed integrally with the device main body, which has an electrode that comes into contact with a biological surface; anda fixing portion, formed so as to cover the device main body and the biological signal detection portion, which fixes the device main body and the biological signal detection portion to a human body.2. The biological information detection device according to claim 1 , wherein the device main body is detachably provided to the fixing portion.3. The biological information detection device according to claim 2 , wherein the fixing portion is configured such that at least an elastic strap and a non-elastic belt are connected to each other claim 2 , and that the device main body is detachably provided to the belt.4. The biological information detection device according to claim 2 , wherein the fixing portion is configured such that at least an elastic strap and a hard connection member are connected to each other claim 2 , and that the device main body is detachably provided to the connection member.5. The biological information detection device according to claim 1 , wherein the biological signal detection portion is formed from conductive elastomer claim 1 , and the conductive elastomer serves as the electrode. 1. Field of the InventionThe present invention relates to a biological information detection device that detects a biological signal by installing an electrode on the biological surface of the human body.2. Background ArtAmong these kinds of ...

Подробнее
Номер записи: 16
18-04-2013 дата публикации

BIOLOGICAL INFORMATION DETECTION DEVICE

Номер: US20130096412A1
Автор: KANEKO Takahiro, KATO Teruo, OKUDA Hideki, TERASAWA Dai
Принадлежит:

A heartbeat measurement device includes a device main body, a heartbeat detection portion, formed integrally with the device main body, which has electrodes that come into contact with a biological surface, and a fixing band, formed in a belt shape, which fixes the device main body and the heartbeat detection portion to a human body. Both ends of the fixing band in a long-side direction are detachably installed on the device main body through an engagement portion constituted by a hook portion and an engaged portion. 1. A biological information detection device comprising:a device main body;a biological signal detection portion, formed integrally with the device main body, which has an electrode that comes into contact with a biological surface; anda fixing portion, formed in a belt shape, which fixes the device main body and the biological signal detection portion to a human body,wherein both ends of the fixing portion in a long-side direction are detachably installed on the device main body through an engagement portion.2. The biological information detection device according to claim 1 , wherein the fixing portion includesat least an elastic strap, anda non-elastic belt connected to at least one of one end and the other end of the strap in a long-side direction,wherein the belt is formed so as to cover the biological signal detection portion, and is detachably installed on the device main body through the engagement portion.3. The biological information detection device according to claim 2 , wherein a displacement regulation portion that regulates displacement of a relative position is provided between the belt and the biological signal detection portion.4. The biological information detection device according to claim 1 , wherein the engagement portion is constituted by a hook portion provided to one of the device main body and the fixing portion claim 1 , and an engaged portion claim 1 , provided to the other one of the device main body and the fixing portion ...

Подробнее
Номер записи: 17
18-04-2013 дата публикации

Method and System for Differentiating Between Supraventricular Tachyarrhythmia and Ventricular Tachyarrhythmia

Номер: US20130096446A1
Автор: Michael Kevin A., Redfearn Damian P.
Принадлежит:

A method of differentiating between supraventricular tachyarrhythmia (SVT) and ventricular tachyarrhythmia (VT) is disclosed. A post pacing interval (PPI) is determined based on a biomarker dataset. The post pacing interval is statistically analyzed relative to a threshold to differentiate between SVT and VT. A further method of differentiating between SVT and VT is disclosed. A PPI is determined based on a biomarker dataset. A tachycardia cycle length (TCL) is also determined based on the biomarker dataset. A difference of the PPI minus the TCL is statistically analyzed relative to a threshold to differentiate between SVT and VT. A non-transitory computer readable medium and a system are also disclosed for differentiating between SVT and VT. 1. A method of differentiating between supraventricular tachyarrhythmia (SVT) and ventricular tachyarrhythmia (VT) , comprising:a) determining a post pacing interval (PPI) based on a biomarker dataset; andb) statistically analyzing the post pacing interval relative to a threshold to differentiate between SVT and VT.2. The method of claim 1 , wherein the biomarker dataset comprises cardiac electrogram (EGM) data.3. The method of claim 1 , further comprising providing a biomarker dataset.4. The method of claim 3 , wherein providing the biomarker dataset comprises sampling EGM data provided from one or more implanted sensor leads from an implantable cardioverter defibrillator (ICD).5. The method of claim 4 , wherein at least one of the one or more implanted sensor leads comprises a ventricular ICD lead.6. The method of claim 1 , wherein the determining the post pacing interval (PPI) comprises determining a first return cycle length from a portion of the biomarker dataset which follows an episode of anti-tachycardia pacing (ATP).7. The method of claim 1 , wherein the biomarker dataset comprises at least one member selected from the group consisting of:an R-peak to peak interval;a heart rate;a scatterplot;a heartbeat cycle time; ...

Подробнее
Номер записи: 18
18-04-2013 дата публикации

System and methods for serial analysis of electrocardiograms

Номер: US20130096447A1
Автор: Bojovic Bosko, Dhawan Akshay, George Samuel, Gussak Ihor, Panescu Dorin, Wenzel Brian
Принадлежит:

Systems and methods for serial analysis of electrocardiograms are presented, wherein serial electrocardiographic (ECG) assessment is incorporated with three-dimensional vectorial analysis of the cardiac electrical signal, using changes in novel 3D-based vectorial markers over time to improve diagnostic sensitivity for acute coronary syndromes (ACS), and improve differentiation of ACS from the broad range of heart diseases that resemble ACS on ECG. 1. A method for detecting a first cardiac condition , comprising:a. providing a first quantity of 12-lead ECG data, and at least a second quantity of 12-lead ECG data from a patient;b. constructing a 3-D representation of cardiac activity from the first and second quantities of ECG data;c. computing values for one or more parameters based upon at least one of said 3-D representation of cardiac activity from the first quantity of ECG data;c. computing values for said one or more parameters based upon at least one of said 3-D representation of cardiac activity from the second quantity of ECG data;d. calculating a difference in said one or more parameters between the first quantity of ECG data and the second quantity of ECG data;e. conducting an analysis of said calculated differences in said one or more parameters;f. forming one or more conclusions regarding the cardiac condition of a patient based upon the analysis of said calculated differences in one or more parameters;g. providing feedback to a healthcare provider regarding said conclusions2. The method of claim 1 , wherein said differences in one or more parameters are calculated as absolute values of said differences.3. The method of claim 1 , further comprising applying a multifactorial analysis protocol utilizing at least one of the values of the one or more parameters; and automatically drawing one or more conclusions regarding a first cardiac condition of the patient based at least in part upon the output of the multifactorial analysis protocol.4. The method of ...

Подробнее
Номер записи: 19
18-04-2013 дата публикации

METHODS AND APPARATUS FOR ENHANCED FIDUCIAL POINT DETERMINATION AND NON-INVASIVE HEMODYNAMIC PARAMETER DETERMINATION

Номер: US20130096448A1
Автор: Brooks Donald J., Malecha Jeremy
Принадлежит:

Methods and apparatus for utilizing multiple sources of physiologic data to enhance measurement robustness and accuracy. In one embodiment, phonocardiography or “heart sounds” data is used in combination with one or more other techniques (for example, impedance cardiography or ICG waveforms, and/or electrocardiography or ECG waveforms) to provide more accurate and robust physiological and/or hemodynamic assessment of living subjects. In one variant, the aforementioned methods and apparatus are used to improve ICG fiducial point (e.g., B, C and X point) detection and identification accuracy. Moreover, the new ICG fiducial points that may be clinically important may be identified using the disclosed methods and apparatus. In a further aspect, the invention discloses methods and apparatus for utilization of ICG and/or ECU waveform information to improve the identification and characterization of heart sounds (such as e.g., S1, S2, S3, or S4 heart sounds), murmurs, and other such artifacts or phenomena. 1. A sensor apparatus for use in assessing cardiac function of a living subject , comprising:a substantially unitary base element;a plurality of terminals, wherein the plurality of terminals are utilized in the communication of electrocardiographic and impedance cardiographic information of the living subject to a processing device;an acoustic receptor device; anda chamber configured to couple acoustic emissions from the living subject to the acoustic receptor device.2. The sensor apparatus of claim 1 , wherein the substantially unitary base element and the plurality of terminals are of low cost thereby rendering the sensor apparatus disposable.3. The sensor apparatus of claim 1 , wherein the acoustic receptor device comprises a piezoelectric device.4. The sensor apparatus of claim 1 , wherein the acoustic receptor device comprises a piezoresistive device.5. The sensor apparatus of claim 1 , further comprising one or more signal lines claim 1 , wherein the one or more ...

Подробнее
Номер записи: 20
25-04-2013 дата публикации

Radiation Treatment Planning and Delivery for Moving Targets in the Heart

Номер: US20130102896A1
Автор: Gardner Ed, Maguire Patrick, Sumanaweera Thilaka
Принадлежит: CyberHeart, Inc.

Method and systems are disclosed for radiating a moving target inside a heart. The method includes acquiring sequential volumetric representations of an area of the heart and defining a target tissue region and/or a radiation sensitive structure region in 3D for a first of the representations. The target tissue region and/or radiation sensitive structure region are identified for another of the representations by an analysis of the area of the heart from the first representation and the other representation. Radiation beams to the target tissue region are fired in response to the identified target tissue region and/or radiation sensitive structure region from the other representation. 1. A method of radiating a moving target , the target comprising a target tissue having blood flowing therethrough , the target tissue having a tissue surface including an inner surface bordering the blood and an outer surface , the method comprising:acquiring a series of computed tomography (CT) volumes encompassing the target tissue;identifying the target in three dimensions in the acquired CT volume;computing a treatment plan according to the identified radiation target region;computing a dose distribution according to the computed treatment plan;displaying a visualization of the dose distribution using a surface rendering of the tissue surface of the target tissue in three dimensions (3D); anddelivering the dose distribution to the radiation target region to treat the target.2. The method of claim 1 , wherein the step of displaying the visualization of the dose distribution comprises at least one of: 1) volume rendering claim 1 , 2) maximum intensity projection claim 1 , 3) minimum intensity projection claim 1 , 4) X-ray projection claim 1 , 5) haptic feedback claim 1 , 6) virtual fly-through claim 1 , 7) stereoscopic 3D rendering claim 1 , 8) virtual reality claim 1 , and 9) multi-planar claim 1 , oblique and curved reconstructions.3. The method of claim 1 , wherein the treatment ...

Подробнее
Номер записи: 21
25-04-2013 дата публикации

NOVEL METHODOLOGY FOR ARRHYTHMIA RISK STRATIFICATION BY ASSESSING QT INTERVAL INSTABILITY

Номер: US20130102912A1
Автор: Chen Xiaozhong, Trayanova Natalia A.
Принадлежит: THE JOHNS HOPKINS UNIVERSITY

A method of predicting ventricular arrhythmias includes receiving an electrical signal from a subject's heart for a plurality of heart beats, identifying characteristic intervals and heart beat durations of the electrical signal corresponding to each of the plurality of heart beats to provide a plurality of characteristic intervals with corresponding heart beat durations, representing dynamics of the plurality of characteristic intervals as a function of a plurality of preceding characteristic intervals and durations of corresponding heart beats over a chosen period time, assessing a stability of the function over the chosen period of time, and predicting ventricular arrhythmias based on detected instabilities in the dynamics of the characteristic intervals. 1. A method of predicting ventricular arrhythmias , comprising:receiving an electrical signal from a subject's heart for a plurality of heart beats;identifying characteristic intervals and heart beat durations of the electrical signal corresponding to each of the plurality of heart beats to provide a plurality of characteristic intervals with corresponding heart beat durations;representing dynamics of said plurality of characteristic intervals as a function of a plurality of preceding characteristic intervals and durations of corresponding heart beats over a chosen period time;assessing a stability of said function over said chosen period of time; andpredicting ventricular arrhythmias based on detected instabilities in the dynamics of said characteristic intervals.2. A method of predicting ventricular arrhythmias according to claim 1 , wherein said receiving an electrical signal is at least one of receiving an ECG or ICD electrogram signal.3. A method of predicting ventricular arrhythmias according to claim 2 , wherein said characteristic intervals are QT intervals of said at least one of said ECG or ICD electrogram signal.4. A method of predicting ventricular arrhythmias according to claim 3 , wherein said ...

Подробнее
Номер записи: 22
25-04-2013 дата публикации

Patient Readable Portable Atrial Fibrillation Detector

Номер: US20130102913A1
Автор: Reaser Vernon N.
Принадлежит:

Systems and devices to gather data from a subject's heart, analyze said data to determine whether the subject is experiencing cardiac arrhythmia, and display results of said determining. Use, and display of cardiac condition information, are preferably simple and unambiguous to untrained users. Atrial fibrillation is the most common form of cardiac arrhythmia, and involves the two upper chambers of the heart. A trained medical technician or Doctor can usually recognize the unique heart contractions related to Atrial Fibrillation or Atrial Flutter. Trained medical personnel can generally detect Atrial Fibrillation by taking a patient's pulse, but it takes training and experience that most lay persons lack. Typically, a doctor will use a 12-lead EKG to make a definitive determination of Atrial Fibrillation or Atrial Flutter.No device to date provides individuals with unaided rapid determination of whether they are experiencing Atrial Fibrillation or Atrial Flutter, which left untreated for longer than 48 hours can lead to risk of debilitating stroke or death.The costs of health care are rising quickly, and rapid access to emergency health services is perennially uncertain.For ease of reading Artial Fibulation and Atrial Flutter will be collectively referred as Afib.Generally, individuals are at high risk to develop Afib beginning at age 65. Ten thousand people per day turn 65 in the U.S. alone. Other people at risk of developing Afib include adolescents, due to the increasing popularity of energy drinks; diabetics, who have a 40% higher risk of developing Afib than those without diabetes; and those who have a close family member with Afib have a 40% higher risk of developing Afib.Of people with untreated Afib, 7%, if left untreated, will die or be permanently and seriously disabled, likely requiring full time medical care.Afib can be treated successfully in almost all cases, if the victim is properly and timely screened. Screening is far less expensive than treatment ...

Подробнее
Номер записи: 23
02-05-2013 дата публикации

SYSTEMS AND METHODS FOR PULMONARY MONITORING AND TREATMENT

Номер: US20130109932A1
Автор: ABOLFATHI Amir A., SAADAT Vahid
Принадлежит: Sonitus Medical, Inc.

Systems and methods are disclosed determining a pulmonary function by mounting one or more sensors intra-orally; capturing intra-oral data; and determining the pulmonary function based on an analysis of the intra-oral data. 1. A method for determining a pulmonary function of a patient , comprising:a. mounting one or more sensors intra-orally upon at least one tooth via an intra-oral appliance, wherein the appliance produces an interference fit between the appliance and at least two surfaces of at least one tooth;b. capturing intra-oral data via the one or more sensors; andc. determining the pulmonary function based on an analysis of the intra-oral data.2. The method of claim 1 , further comprising determining an intermittent breathing condition from an intra-oral sound captured by the one or more sensors or determining a snoring condition from the intra-oral sound.3. The method of claim 1 , wherein mounting further comprises providing the appliance having an actuatable transducer disposed Within or upon a housing of the appliance.4. The method of claim 3 , wherein after determining the pulmonary function claim 3 , maintaining contact between a surface of the at least one tooth and the actuatable transducer such that the transducer transmits vibrations to a surface of the at least one tooth.5. The method of claim 1 , wherein capturing comprises:a. measuring a magnitude and a frequency of an intra-oral sound; andb. determining one or more intervals between breaths from the intra-oral sound.6. The method of claim 1 , wherein capturing comprises measuring oxygen concentration or carbon dioxide saturation.7. The method of claim 1 , wherein capturing comprises measuring oxygen data through a lax stratum corneum or a dermal structure.8. The method of claim 1 , wherein capturing comprises performing claim 1 , a dual-color ratiometric oxygen saturation measurement.9. The method of claim 1 , wherein capturing comprises measuring breath oxygen or carbon dioxide content.10. The ...

Подробнее
Номер записи: 24
02-05-2013 дата публикации

TWO-PART PATCH SENSOR FOR MONITORING VITAL SIGNS

Номер: US20130109937A1
Автор: Banet Matthew John, Hunt Kenneth Robert, Zhou Zhou
Принадлежит: Sotera Wireless, Inc.

A two-component monitoring device and system for monitoring blood pressure from a patient is disclosed herein. The two-component monitoring device includes a disposable component and a main component. The disposable component features: i) a backing structure having a first aperture; and ii) first and second electrodes, each electrode connected to the backing structure and including an electrical lead and a conductive electrode material, and configured to generate an electrical signal that passes through the electrical lead when the conductive electrode material contacts the patient. The main component includes: i) first and second connectors configured to connect to the first and second electrical leads to receive the first and second electrical signals; and ii) an optical component comprising a light source that generates optical radiation and a photodetector that detects the optical radiation. The optical component inserts into the first aperture of the disposable component. The main component optionally includes an acoustic sensor. The system utilizes a processing device, connected to the monitoring device by a cable which receives and processes a plurality of signals to determine real-time blood-pressure values for the patient. 1. A system for monitoring a left ventricular ejection time from a patient , the system comprising: i) a backing structure,', 'ii) a first electrode and a second electrode, each of the first and second electrodes connected to the backing structure and comprising an electrical lead in contact with a conductive electrode material, the first electrode configured to measure a first signal from the patient that passes through the conductive electrode material and the electrical lead of the first electrode, and the second electrode configured to measure a second signal from the patient that passes through the conductive electrode material and the electrical lead of the second electrode,', 'iii) an acoustic sensor comprised by the backing ...

Подробнее
Номер записи: 25
02-05-2013 дата публикации

ELECTROANATOMICAL MAPPING

Номер: US20130109945A1
Автор: Harlev Doron, Stewart Brian
Принадлежит: RHYTHMIA MEDICAL, INC.

This invention relates to the determination and/or representation of physiological information relating to a heart surface. 175-. (canceled)76. A method for providing an electroanatomical representation of a patient's heart , the method comprising:measuring signals at one or more electrodes at multiple positions in the patient's heart cavity over a time period including multiple heart beat cycles, at least some of the signals being in response to electrical activity in the patient's heart cavity;selecting portions of one or more specific signals to process to determine a triggering event based on a second, different signal of the measured signals;applying an algorithm to the selected portions of the one or more specific signals of the measured signals to determine the triggering event in the specific signal;synchronizing, by the computer, the signals measured at the one or more electrodes with one another according to a heart beat cycle based on the triggering event; andgenerating, by the computer, the electroanatomical representation of the patient's heart based on the synchronized measured signals and positions of the catheter electrodes.77. (canceled)78. The method of claim 76 , wherein selecting portions of the specific signal comprises selecting portions of the specific signal to exclude from processing.79. The method of claim 76 , wherein selecting portions of the specific signal comprises selecting portions of the specific signal to include in processing.8084-. (canceled)85. The method of claim 76 , wherein the one or more electrodes comprise one or more electrodes on an intracardiac catheter.86. The method of claim 76 , further comprising:generating, by the computer, annotation information for the measured signals by applying one or more algorithms to the measured signals.87. The method of claim 86 , further comprising conveying at least some of the annotation information to the user.88. The method of claim 76 , further comprising:inserting a catheter ...

Подробнее
Номер записи: 26
02-05-2013 дата публикации

ELECTROCARDIOGRAPHIC MONITORING SYSTEM

Номер: US20130109946A1
Автор: Loo Yong Ying, Puah Soon Hiang, Shim Se Ngie Winston, WONG En Hou Philip
Принадлежит: Web Biotechnology Pte Ltd.

According to one aspect of the invention, there is provided an electrocardiographic monitoring system including: a housing configured to be attached to a creature body part, the housing including: a plurality of electrodes confined within the boundary of the housing, the plurality of electrodes arranged a distance apart from each other and accessible from a same exterior surface of the housing; a signal processor configured to receive signals from any one or more of the plurality of electrodes and transmit signals to any one or more of the plurality of electrodes; and a transmitter configured to transmit signals from the signal processor. 1. An electrocardiographic monitoring system comprising: a plurality of electrodes confined within the boundary of the housing, the plurality of electrodes arranged a distance apart from each other and accessible from a same exterior surface of the housing;', 'a fastening mechanism provided on each electrode of the plurality of electrodes to allow detachable fastening between the electrode and an electrode lead;', 'a signal processor configured to receive signals from any one or more of the plurality of electrodes and transmit signals to any one or more of the plurality of electrodes; and', 'a transmitter configured to transmit signals from the signal processor., 'a housing configured to be attached to a creature body part, the housing comprising2. The electrocardiographic monitoring system according to claim 1 , wherein the plurality of electrodes comprise at least three input electrodes configured to send signals to the signal processor.3. The electrocardiographic monitoring system according to claim 1 , wherein the plurality of electrodes comprise an electrode configured as a ground terminal.4. The electrocardiographic monitoring system according to claim 1 , wherein the signal processor comprises a differential input buffer coupled to at least two input electrodes of the plurality of electrodes.5. The electrocardiographic ...

Подробнее
Номер записи: 27
02-05-2013 дата публикации

EXPERT SYSTEM TO FACILITATE SOURCE LOCALIZATION OF BRAIN ELECTRICAL ACTIVITY

Номер: US20130109996A1
Автор: Bagheri-Hamaneh Mehdi, Kaffashi Farhad, Lhatoo Samden, Loparo Ken, Luders Hans, Turnbull John
Принадлежит: CASE WESTERN RESERVE UNIVERSITY

A system or method can facilitate source localization of brain electrical activity. In one example, an expert system can be utilized to evaluate the source localization results and, based on the acceptability of the results, adjust a data preparation phase to provide for acceptable source localization. 1. A computer-implemented system to localize a source of electrical activity in a patient's body , the system comprising:a preprocessing component programmed to preprocess electrical data corresponding to electrical signals acquired from a patient;an inverse model to represent the source of electrical activity;a forward model to represent geometry and electrical characteristics of a spatial region of interest for the patient's body based on the inverse model;a source localization function programmed to compute a location for the source of electrical activity within the spatial region of interest based on the preprocessed electrical data, the inverse model and the forward model; andan expert system to evaluate an acceptability of the computed location for the source of electrical activity and to selectively adjust of at least one of the preprocessing, the inverse model and the forward model based on the evaluation of the acceptability, the expert system adapted to cause the source localization function to re-compute the location for the source of electrical activity based on the selective adjustment.2. The system of claim 1 , wherein expert system further comprises:an evaluator programmed to evaluate the acceptability of the computed location for the source of electrical activity based on predefined criteria; andan adjustment control programmed to perform the selective adjustment automatically based on preprogrammed rules applied to results of the evaluation of the acceptability.3. The system of claim 2 , wherein the adjustment control further comprises:a preprocessing control programmed to adjust the preprocessing automatically based on the rules; anda model selector ...

Подробнее
Номер записи: 28
09-05-2013 дата публикации

APPARATUS, SYSTEM, AND METHOD FOR SEIZURE SYMPTOM DETECTION

Номер: US20130116514A1
Автор: Kroner Barbara, Pitruzzello Ann, Shorey Jamie, Strube David C.
Принадлежит: Research Triangle Institute

An apparatus, system, and method are disclosed for detecting seizure symptoms in an individual . A sensor module receives physiological data for an individual from one or more sensors , such as a heart activity sensor. A feature detection module detects a predefined feature in the physiological data. The predefined feature is associated with a seizure or another medical condition. An alert module broadcasts an alert in response to the feature detection module detecting the predefined feature 1. An apparatus to detect seizure symptoms , the apparatus comprising:a sensor module that receives heart activity data for an individual from a heart activity sensor;a feature detection module that detects a predefined feature in the heart activity data, the predefined feature associated with a seizure; andan alert module that broadcasts an alert in response to the feature detection module detecting the predefined feature.2. The apparatus of claim 1 , further comprising a confirmation feature module that detects one or more additional predefined features associated with a seizure in additional data for the individual from one or more additional sensors claim 1 , wherein the sensor module receives the additional data from the one or more additional sensors and wherein the alert module broadcasts the alert in response to the confirmation feature module detecting the one or more additional predefined features.3. The apparatus of claim 2 , wherein the one or more additional sensors include a respiration sensor and the one or more additional predefined features comprise one or more of a predefined increase in an integrated respiration waveform claim 2 , a predefined increase in respiration amplitude claim 2 , a predefined change in respiration rate claim 2 , a breath of at least a predefined duration claim 2 , a breath of at least a predefined amplitude claim 2 , a breath of at least a predefined volume claim 2 , and a predefined change in a period of a respiration interval.4. The ...

Подробнее
Номер записи: 29
09-05-2013 дата публикации

LONG-TERM CUTANEOUS CARDIAC MONITORING

Номер: US20130116533A1
Автор: Lang Volker, Lian Jie, Muessig Dirk
Принадлежит: BIOTRONIK SE & Co. KG

A system for long-term non-invasive heart monitoring includes (1) a disposable unit that has built-in electrodes, a built-in wire antenna, a watertight chamber that can be opened and closed, and an adhesive surface for cutaneous mounting; (2) an electronic controller that can acquire, process and store physiological signals, and can be fitted into the disposable unit to establish electrical contact with the built-in electrodes; and (3) a portable communication unit that can wirelessly communicate bi-directionally with the electronic controller, and further communicate bi-directionally with a remote service center. 1. A system for long-term cutaneous cardiac monitoring including:A. a disposable unit configured to be adhered to a patient's skin, andB. an electronic controller detachably connected to the disposable unit,wherein: ["(1) a substantially flat skin-contacting portion having pick-up electrode poles situated to electrically contact a patient's skin at spaced-apart locations,", '(2) an antenna; and', (a) attached to the skin-contacting portion,', '(b) configured to accommodate the electronic controller therein in a watertight sealed manner,', '(c) configured to open and close so as to allow insertion of the electronic controller therein, and removal therefrom,', '(d) including electrode terminals therein that are electrically connected to the pick-up electrode poles, and', '(e) including an antenna port therein that is electrically connected to the antenna; and, '(3) an internal chamber], 'a. the disposable unit includes (1) includes electrical conducting ports situated to make conductive contact with the electrode terminals and the antenna port when the controller is inserted within the chamber, thereby establishing electrical contact with the pick-up electrode poles and the antenna,', '(2) is configured to acquire, process and store physiological signals acquired via the pick-up electrode poles., 'b. the controller2. The system of wherein the controller ...

Подробнее
Номер записи: 30
09-05-2013 дата публикации

DETACHABLE BIOLOGICAL SIGNAL MEASURING PAD AND BIOLOGICAL SIGNAL MEASURING APPARATUS USING THE SAME

Номер: US20130116534A1
Автор: Woo Sung Hun
Принадлежит: UMEDIX CORPORATION LIMITED

Disclosed is a detachable biological signal measuring pad that may conveniently measure biological signals such as a pulse or body temperature. The biological signal measuring pad includes an adhesive pad main body detachably adhered to a body, a biological signal detecting electrode provided on an adhesive surface of the main body adhered to the body, and a module chip including a memory card mounted on the main body so as to be connected with the electrode and storing biological signals measured in the electrode, and provided on a surface opposite to the adhesive surface. 1. A detachable biological signal measuring pad , comprising:an adhesive pad main body detachably adhering to a human body;a biological signal detecting electrode provided on an adhesive surface of the main body adhering to the human body; anda module chip including a memory card mounted on the main body so as to be connected with the electrode, and storing biological signals measured in the electrode, and provided on a surface opposite to the adhesive surface.2. The detachable biological signal measuring pad of claim 1 , further comprising:a connecting pad provided between the electrode of the main body and the module chip, and having a connecting means for electrically connecting the module chip and the electrode,wherein the connecting means includes a connecting pin protruding from the module chip, and a plug groove connected with the electrode and formed on the connecting pad so as to receive the connecting pin.3. The detachable biological signal measuring pad of claim 2 , wherein the connecting means further includes adhesive members provided below the module chip and above the connecting pad so as to be coupled to each other.4. The detachable biological signal measuring pad of claim 1 , wherein the memory card is detachably coupled to the module chip.5. The detachable biological signal measuring pad of claim 4 , wherein the memory card includes a memory unit for storing the measured ...

Подробнее
Номер записи: 31
09-05-2013 дата публикации

DETECTION AND MONITORING OF ABDOMINAL AORTIC ANEURYSM

Номер: US20130116576A1
Автор: Morren Geert Gui Georges
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Ruptured Abdominal Aortic Aneurysms (AAA) cause a large number of deaths annually. Ruptures occur even in people who are already diagnosed with AAA and are being monitored. The reason is that the interval between tests is too long because of the need to visit a pathological facility with imaging equipment. It is preferable to estimate the progress of AAA frequently, once detected, in a non-invasive manner, preferably at the subject's home, without the need for the subject to visit a pathological facility. A device is disclosed for detecting a state of a vascular pathology of a subject, comprising a sensor signal unit () for providing a signal representative of a blood volume in a body part of a subject, a comparator () for comparing the sensor signal with a reference signal, and a user interface () for conveying a result based on the comparison to a user of the device. 1. A device for testing a subject for detecting a state of a vascular pathology of the subject , the device comprising:a sensor signal unit for receiving a sensor signal representative of a blood volume in a body part of the subject;a comparator for comparing the sensor signal with a reference signal; anda user interface for conveying a result based on the comparison to a user of the device.2. The device of claim 1 , wherein the sensor signal unit acquires and processes the sensor signal provided by a photoplethysmogram sensor.3. The device of claim 1 , wherein the reference signal is at least one of a sensor signal previously acquired from a test on the subject and a sensor signal acquired from at least one healthy subject.4. The device of claim 1 , further including:an electrocardiogram signal unit for acquiring an electrocardiogram signal of the subject; anda synchronizer for synchronizing an acquisition of the sensor signal with the electrocardiogram signal.5. The device of claim 4 , further including:an electrocardiogram signal processing unit for processing the electrocardiogram signal of the ...

Подробнее
Номер записи: 32
09-05-2013 дата публикации

Biomedical Acquisition System With Motion Artifact Reduction

Номер: US20130116577A1
Автор: KIM Sunyoung, Yazicioglu Refet Firat
Принадлежит: IMEC

A system for the analysis of ECG signals is disclosed. The system may comprise (i) at least one readout channel, configured to receive an analogue ECG signal acquired from at least one electrode attached to a body, and to extract an analogue measured ECG signal and analogue electrode-skin impedance signals; (ii) at least one ADC, configured to convert those extracted analogue signals at the readout channel into digital signals; (iii) a digital adaptive filter unit, configured to calculate a digital motion artifact estimate based on said digital versions of the measured ECG signal and the electrode-skin impedance signals; (iv) at least one DAC, configured to convert said digital motion artifact estimate into an analogue signal; and (v) a feedback loop for sending said analogue motion artifact estimate signal back to the readout channel configured to deduct said analogue motion artifact estimate signal from said analogue measured ECG signal. 1. A system for the analysis of ECG signals , the system comprising:at least one readout channel, configured to receive an analogue ECG signal acquired from at least one electrode attached to a body, and to extract analogue signals comprising an analogue measured ECG signal and analogue electrode-skin impedance signals;at least one ADC, configured to convert the extracted analogue signals at the readout channel into digital signals;a digital adaptive filter unit, configured to calculate a digital motion artifact estimate based on said digital versions of the measured ECG signal and the electrode-skin impedance signals;at least one DAC, configured to convert said digital motion artifact estimate into an analogue motion artifact estimate signal; anda feedback loop for sending said analogue motion artifact estimate signal back to the readout channel configured to deduct said analogue motion artifact estimate signal from said analogue measured ECG signal.2. The system according to claim 1 , wherein said analogue electrode-skin ...

Подробнее
Номер записи: 33
09-05-2013 дата публикации

SYSTEM FOR QUALITY ASSESSMENT OF PHYSIOLOGICAL SIGNALS AND METHOD THEREOF

Номер: US20130116580A1
Автор: Gu Xiaoan, Liu Jia, Liu Xiaochang, Wu Xinyu, XU Yangsheng, Yan Jingyu, Zhang Pandeng
Принадлежит: Shenzhen Institute of Advanced Technology Chinese Academy of Sciences

The present disclosure relates to a system for physiological signal quality assessment, the system includes: a first filter module for implementing a filter process on an inputted first physiological signal; a first periodicity detection module for detecting periodicity of the filtered first physiological signal, and determining periodic segmentation point of the first physiological signal; a feature extracting module for extracting corresponding signal features of the first physiological signal in each heart period; and a fuzzy logic module for building up a fuzzy logic model according to the extracted signal features, and calculating a signal quality index for the first physiological signal in the relative period based on the built fuzzy logic model, and determining a signal attribute according to the signal quality index. A method for physiological signal quality assessment is provided as well. The system and method for physiological signal quality assessment calculate the signal quality index, determine the signal attribute according to the signal quality index, therefore recognize the abnormal signal out of the first physiological signal, and result in high quality physiological signals. 1. A system for quality assessment of physiological signals , wherein the system comprises:a first filter module for implementing a filter process on an inputted first physiological signal;a first periodicity detection module for detecting periodicity of the filtered first physiological signal, and determining periodic segmentation points of the first physiological signal;a feature extraction module for extracting corresponding signal features of the first physiological signal in each heart period; anda fuzzy logic module for building up a fuzzy logic model according to the extracted signal features, and calculating a signal quality index for the first physiological signal in the relative period based on the built fuzzy logic model, and determining a signal attribute according ...

Подробнее
Номер записи: 34
09-05-2013 дата публикации

Detection of drastic blood pressure changes

Номер: US20130116587A1
Автор: Kristian Solem, Leif Sörnmo
Принадлежит: GAMBRO LUNDIA AB

A cardiac-activity based prediction of a rapid drop in a patient's blood pressure during extracorporeal blood treatment is disclosed. A proposed alarm apparatus includes a primary beat morphology analysis unit bank of secondary analysis units and an alarm generating unit. The primary beat morphology analysis unit discriminates heart beats in a received basic electrocardiogram signal, classifies each beat into one out of at least two different beat categories, and associates each segment of the signal with relevant event-type data. The event-type data and the basic electrocardiogram signal together form an enhanced electrocardiogram signal, based upon which the primary beat morphology analysis unit determines whether one or more secondary signal analyses should be performed. Depending on the enhanced electrocardiogram signal's properties, the bank of secondary analysis units performs none, one or more of up to at least two different types of secondary analyses, and for each analysis performed produces a respective test signal. The alarm generating unit receives the test signals, and triggers an alarm signal indicative of an estimated rapid blood pressure decrease, if at least one alarm criterion is fulfilled.

Подробнее
Номер записи: 35
09-05-2013 дата публикации

SYSTEMS AND METHODS FOR DYNAMIC ADJUSTABLE SPATIAL GRANULARITY FOR EEG DISPLAY

Номер: US20130116590A1
Автор: Emerson Ronald G., Schevon Catherine A.
Принадлежит: The Trustees of Columbia University in the City of New York

A method for organizing and displaying EEG data obtained from C EEG channels on a computer system in a user-friendly manner includes placing the C EEG channels into a schematic placement diagram dividing the C EEG channels, using a processor, into G channel groups for each of the G channel groups, combining any of the C EEG channels in such G channel group, using a processor, into a single trace, and for each of the G channel groups, displaying the single trace. A system for organizing and displaying EEG data is also provided. 1. A method for organizing and displaying EEG data obtained from C EEG channels on a computer system in a user-friendly manner , comprising:placing the C EEG channels into a schematic placement diagram;dividing the C EEG channels, using a processor, into G channel groups;for each of the G channel groups, combining any of the C EEG channels in such G channel group, using a processor, into a single trace; andfor each of the G channel groups, displaying the single trace.2. The method of claim 1 , further comprising selecting a plurality of the G channel groups for zooming out.3. The method of claim 2 , further comprising merging the selected plurality of G channel groups into a new single trace.4. The method of claim 1 , further comprising selecting one of the G channel groups for zooming in.5. The method of claim 4 , further comprising dividing the selected G channel group into a plurality of composite channels.6. The method of claim 1 , further comprising displaying a montage.7. The method of claim 1 , further comprising saving settings for later use or sharing.8. The method of claim 1 , further comprising computing a specific feature from the C EEG channels.9. The method of claim 8 , further comprising mapping the specific feature to a current set of the G channel groups.10. The method of claim 9 , wherein mapping the specific feature includes summing a number of detections of the specific feature for a predetermined time slice within each G ...

Подробнее
Номер записи: 36
16-05-2013 дата публикации

Portable brainwave measuring and controlling system

Номер: US20130123585A1
Автор: Sungchul Kang
Принадлежит: Individual

The present invention relates to a portable brainwave measuring method, which measures a weak brainwave signal detected from a human scalp through a noninvasive method to measure a degree of concentration through an analysis and process of the detected brainwave signal, and a control method enabled for short distance control of an electronic device or remote monitoring through the internet, by using the brainwave signal. An acceleration sensor is put on the head of a user, and a brainwave detecting means put on the head of a user to detect a brainwave and the acceleration sensor that outputs an acceleration value of three axes including XYZ axes as a signal of predetermined data are used to detect movement of the head, to thereby control the direction and speed of a brainwave-related device. In more detail, after a signal outputted from the brainwave detecting means is converted into a wireless signal and transmitted, a value of the wireless signal is inputted to a receiving unit of a display device and is expressed numerically. By setting the value inputted to the display device, a portable brainwave measuring device provides accurate device control. A control system is characterized in that a signal according to the slope direction of the head is detected and analyzed, and then numerically expressed by using 6 brainwave signals such as a delta wave (δ), theta wave (θ), alpha wave (α), SMR wave, beta wave (β) and gamma wave (σ), which are measured through the portable brainwave measuring device and the acceleration sensor put on the head. A wireless system, including a short distance wireless module for transmitting/receiving the wireless signal, includes a wireless receiving module, a signal analyzing unit, and a control output unit. Additionally, the wireless system is connected to a PC or controls a short/long distance external device.

Подробнее
Номер записи: 37
16-05-2013 дата публикации

SYSTEM AND METHOD FOR ANALYZING A PATIENT STATUS FOR CONGESTIVE HEART FAILURE FOR USE IN AUTOMATED PATIENT CARE

Номер: US20130123651A1
Автор: Bardy Gust
Принадлежит: Cardiac Pacemakers, Inc.

A system and method for providing diagnosis and monitoring of congestive heart failure for use in automated patient care is described. At least one recorded physiological measure is compared to at least one other recorded physiological measure on a substantially regular basis to quantify a change in patient pathophysiological status for equivalent patient information. An absence, an onset, a progression, a regression, and a status quo of congestive heart failure is evaluated dependent upon the change in patient pathophysiological status. 1. A medical device providing physiometry for use in remote automated congestive heart failure patient management , comprising:one or more sensors to directly sense raw physiometry for a patient;sensing circuitry to regularly monitor and record the raw physiometry as collected device measures;memory to temporarily store the collected device measures pending interrogation by an externally interfaceable device; anda telemetry interface to provide access to the collected device measures, wherein derived device measures are thereafter determined to provide derivative physiometry based on the collected device measures and the collected and derived device measures quantify a pathophysiology indicative of congestive heart failure.2. The medical device of claim 1 , further comprising:programming parameters for the medical device, wherein the collected device measures are recorded subsequent to application of the programming parameters.3. The medical device of claim 1 , wherein the medical device comprises one of an implantable medical device and an external medical device.4. The medical device of claim 1 , wherein one or more of the collected and derived device measures are selected from the group comprising self referencing and and general population physiometric measures.5. A method for processing physiometry for use in remote automated congestive heart failure patient management claim 1 , comprising:identifying a patient enrolled in ...

Подробнее
Номер записи: 38
23-05-2013 дата публикации

PHYSILOGICAL SIGNAL COLLECTION APPARATUS AND PERFORMANCE MONITORING APPARATUS INCORPORATING SAME

Номер: US20130131460A1
Автор: Yuen Paul Anthony
Принадлежит: Dayton Technologies Limited

A physiological signal collection electrode comprises a signal collection pad having a skin contact portion, a signal output pad and an elongate bridging portion interconnecting the signal collection pad and the signal output pad. The signal collection pad, the signal output portion and the bridging portion are integrally moulded of a flexible, conductive and resilient material. The width of the bridging portion is substantially smaller than that of the skin contact portion. A narrowed bridging portion operates to concentrate collected physiological signals collected by the skin contact portion before the signals are output to the signal output pad. An elongate bridging portion reduces skin covering area for better wearer comfort as well as providing better resiliency to the electrode when the bridging portion is extended. 136.-. (canceled)37. A physiological signal collection electrode comprising:a signal collection pad;a signal output pad; andan elongate bridging portion interconnecting the signal collection pad and the signal output pad,wherein the signal collection pad comprises a skin contact portion and defines a skin contact surface;wherein the signal collection pad, the signal output portion and the bridging portion are integrally molded of a flexible, conductive and resilient material; andwherein the bridging portion is insulated by an insulating material which is flexible, resilient and waterproof.38. A physiological signal collection electrode according to claim 37 , wherein the insulating material is over-molded onto the bridging portion.39. A physiological signal collection electrode according to claim 37 , wherein the flexible claim 37 , resilient and conductive material is selected form carbonized rubber claim 37 , carbonized fabrics claim 37 , Nickel copper plated polyester claim 37 , silver nylon mesh claim 37 , cotton silver bamboo fiber claim 37 , or other conductive fabrics such as metalized fabrics or the like.40. A physiological signal ...

Подробнее
Номер записи: 39
23-05-2013 дата публикации

ELECTROENCEPHALOGRAM ELECTRODE UNIT FOR SMALL ANIMALS AND MEASUREMENT SYSTEM USING THE SAME

Номер: US20130131461A1
Автор: Jorge Riera, Kawashima Ryuta, Sumiyoshi Akira
Принадлежит: TOHOKU UNIVERSITY

The electroencephalogram electrode unit for small animals includes a base that covers the scalp or brain surface of a small animal and has a plurality of through holes and a plurality of electrodes. Each of the plurality of electrodes is inserted into each of the plurality of through holes, and each of the plurality of electrodes is equipped with an insulating tube, an electrode section disposed within the tube, an extraction conducting wire that is connected to the electrode section and extracts the EEG signal to outside, and a paste that is filled within the tube. The tube is installed in the through hole in a manner of standing upright from the scalp or brain surface, and the electrode section is formed in the form of a wire and is disposed, in a manner of standing upright from the scalp or brain surface, within the paste filled within the tube. 116-. (canceled)17. An electroencephalogram electrode unit for small animals , comprising: a base that covers a scalp or brain surface of a small animal and has a plurality of through holes; and a plurality of electrodes , characterized in that each of the plurality of electrodes is inserted into each of the plurality of through holes; each of the plurality of electrodes is equipped with an insulating inner first tube , an insulating outer second tube housing the first tube , an electrode section disposed within the first tube , an extraction conducting wire that is connected to the electrode section and for taking electroencephalogram signals to outside , and a paste filled within the tube; the first tube and the second tube are installed in the through hole in a manner of standing upright from the scalp or brain surface; and the electrode section is formed in a form of a wire and is disposed , in a manner of standing upright from the scalp or brain surface , within the paste filled within the first tube.18. The electroencephalogram electrode unit for small animals as set forth in claim 17 , characterized in that the ...

Подробнее
Номер записи: 40
23-05-2013 дата публикации

DEVICE FOR MODULAR ANALYSIS

Номер: US20130131462A1
Автор: Bosy-Westphal Anja, Hofler Martin, Klückmann Kristin, Müller Manfred
Принадлежит: SECA AG

The device is provided with at least one analysis apparatus for analyzing at least one biological parameter of a living being. The analysis apparatus has at least one data input for recording measured data of at least one sensor. The sensor measures at least one biological parameter of the living being. The analysis apparatus also has at least one output apparatus for an analysis result. The analysis apparatus has a control unit and a program memory. The program memory stores a plurality of program modules, which can be activated by the control unit according to an externally specifiable control instruction alternatively or in partial or complete combination with each other in such a way that the activated program modules provide the data for the selected analysis result. 110-. (canceled)11. A device comprising at least one evaluation apparatus for evaluating at least one biological parameter of a living organism , which apparatus includes at least one data input for acquiring measurement data from at least one sensor , which measures at least one biological parameter of the living organism , and at least one output apparatus for an evaluation result , wherein the evaluation apparatus further includes a control unit and a program memory , wherein the program memory contains a plurality of program modules that are activateable selectively or in partial or complete combination by the control unit as a function of an externally specifiable control instruction so that the activated program modules provide data for the selected evaluation result.12. The device according to claim 11 , wherein the sensor and the evaluation feature are connected to each other by a data transfer link.13. The device according to claim 11 , wherein a display apparatus and the evaluation apparatus are connected to each other by a data transfer link.14. The device according to claim 11 , wherein the evaluation apparatus comprises an interface for an input of data not metrologically acquired.15. ...

Подробнее
Номер записи: 41
23-05-2013 дата публикации

SNAP AND ELECTRODE ASSEMBLY FOR A HEART RATE MONITOR BELT

Номер: US20130131484A1
Автор: AKKILA Jari, LILJEMARK Jorma, LINDBERG Phillip, LINDMAN ERIK, MANNI Jukka, PERNU Kimmo, PUTKINEN Hannu, RAHKONEN Satu, SAVOLAINEN Tapio, Selby Tapio
Принадлежит: SUUNTO OY

The present invention relates generally to a thin, low thickness snap integrated within or built within a heart rate monitor belt or snap and electrode assebly. The snap can be integrated or built directly in to a heart rate monitor belt. Furthermore, the heart rate monitor belt can be integrated within a textile or garment, for example a compression shirt, sports bra or cycling shorts. The snap can be flushly integrated into the belt or garment such the snap does not take away from the general wearability of the heart rate monitor belt or garment. 1. A snap and electrode assembly , integrateable with , integrated with and/or built in to a heart rate monitor belt , said snap being for receiving , holding and enabling an electrical connection with a male end of an electronic device , said assembly comprising;an upper cap portion having a recess forming at least a portion of the sides of a socket region of a snap for receiving a male end of an electronic device, wherein the upper cap portion further comprises an outer flange region which at least partially surrounds the recessa base portion coupled to the upper cap portion and forming at least a portion of a channel between the base portion and the upper cap portion around the periphery of the socket region,a conductive wire spring housed at least partially within the gap for releasably holding the male end of the electronic device within a socket region of the snap, andthe snap comprises at least one means of mechanically coupling the wire spring to the snap, andan electrode or transmission conductor connection to an electrode which is held between at least the outer flange region of the upper cap portion and the base portion and is electrically connected to at least the conductive wire spring.2. A snap and electrode assembly in accordance with claim 1 , wherein the electrode has a hole corresponding to the recess of the upper cap portion and the upper cap portion of the snap is affixed to one surface of the ...

Подробнее
Номер записи: 42
23-05-2013 дата публикации

Method and Apparatus for Identifying Cardiac Risk

Номер: US20130131530A1
Автор: BROCKWAY BRIAN, BROCKWAY MARINA, HAMLIN ROBERT
Принадлежит: VIVAQUANT LLC

A cardiac-based metric is computed based upon characteristics of a subject's cardiac function. In accordance with one or more embodiments, the end of a mechanical systole is identified for each of a plurality of cardiac cycles of a subject, based upon an acoustical vibration associated with closure of an aortic valve during the cardiac cycle. The end of an electrical systole of an electrocardiogram (ECG) signal for each cardiac cycle is also identified. A cardiac-based metric is computed, based upon a time difference between the end of the electrical systole and the end of the mechanical systole, for the respective cardiac cycles. 1. A method for computing a cardiac-based metric , the method comprising: identifying the end of a mechanical systole based upon an acoustical vibration associated with closure of an aortic valve during the cardiac cycle, and', 'identifying the end of an electrical systole of an electrocardiogram (ECG) signal for the cardiac cycle; and, 'for each of a plurality of cardiac cycles of a subject,'}computing the cardiac-based metric based upon a time difference between the end of the mechanical systole and the end of the electrical systole in each of the plurality of cardiac cycles.2. The method of claim 1 , whereinidentifying the end of the mechanical systole includes, in a circuit, processing electronic heart sound data for the cardiac cycle to identify the end of the mechanical systole based on characteristics of the heart sound data, andidentifying the end of the electrical systole includes, in a circuit, processing electronic ECG signal data for the cardiac cycle to identify the end of the electrical systole based on characteristics of the ECG signal data.3. The method of claim 1 , wherein computing the cardiac-based metric includes computing a metric indicative of proarrhythmic risk.4. The method of claim 1 , wherein identifying the end of the mechanical systole includes identifying the end of a mechanical systole using a heart sound ...

Подробнее
Номер записи: 43
23-05-2013 дата публикации

AUTOMATIC MEASUREMENT OF ISCHEMIC LEVELS IN CORONARY SEGMENTS TO DETERMINE ARTERY RESPONSIBLE THEREFOR

Номер: US20130131531A1
Автор: Olson Charles W.
Принадлежит: ECG-TECH CORPORATION

A method for localizing ischemia in segments of a heart in a patient under test includes attaching a plurality of electrodes to the patient to form a plurality of leads, capturing electric signals at each of the leads, determining a normalized vector magnitude for each lead as is inherent in a normal heart, calculating an output for each cardiac segment as a percentage of the left ventricle (LV) by adding up the contributions for all of the leads in the direction of each segment at the J point based on the normalized vector magnitudes and a correct calibration factor for conversion to the percent of LV and taking a dot product of each lead vector and each segment vector to identify a normalized response for each lead at each segment center and using the dot products to multiply the ST J-point signal for each lead. 1. A system for localizing ischemia in a patient under test and presenting a display image representing a location and an amount of ischemia and/or infarction , comprising:an ECG apparatus connected to a plurality of electrodes attached to the patient to form a plurality of leads; anda processor for processing electrical signals captured at each of the leads for determining a normalized vector magnitude for each of the leads based on the electrical signal, calculating an amount of ischemia or output for each cardiac segment by adding up the contributions for all of the leads in the direction of each segment at the J point based on the normalized vector magnitudes, taking the dot product of each lead vector and the segment vector to identify a normalized response for each lead at each segment center and using the dot products to multiply the ST J-point signal for each lead.2. The system of claim 1 , wherein the processing determines whether the patient under test is suffering transmural ischemia or semi-transmural ischemia.3. The system of claim 1 , wherein a normalized vector magnitude for each lead is found by adding the vector magnitudes of each of the ...

Подробнее
Номер записи: 44
23-05-2013 дата публикации

TINNITUS TESTING DEVICE AND METHOD

Номер: US20130131543A1
Автор: Kinder James Michael, Turner Jeremy
Принадлежит: Board of Trustees of Southern Illinois University

Objectively identifying an acoustic characteristic of tinnitus of a subject. The subject is exposed to a sound pattern having a background acoustic signal preceding an audible silence. The background acoustic signal has a selected acoustic characteristic. An electrical response of the subject's central nervous system to the exposure to the sound pattern is measured. The measured electrical response has a first portion representing the electrical response of the subject's central nervous system to the background acoustic signal, and a second portion representing the electrical response of the subject's central nervous system to the audible silence in the sound pattern. The first portion of the measured electrical response is compared to the second portion of the measured electrical response and a determination is made as to whether the subject has tinnitus with an acoustic characteristic similar to the selected acoustic characteristic based on the comparison. 1selecting an acoustic characteristic of a background acoustic signal;exposing the subject to a sound pattern, said sound pattern including a background acoustic signal having the selected acoustic characteristic and a gap;measuring an electrical response of the subject's central nervous system to the exposure to the sound pattern, said measured electrical response having a first portion representing the electrical response of the subject's central nervous system to the exposure to the background acoustic signal, and said measured electrical response having a second portion representing the electrical response of the subject's central nervous system to the exposure to the gap in the sound pattern;comparing the first portion of the measured electrical response to the second portion of the measured electrical response; anddetermining whether the subject has tinnitus with an acoustic characteristic similar to the selected acoustic characteristic based on said comparison.. A method for objectively identifying an ...

Подробнее
Номер записи: 45
30-05-2013 дата публикации

BIOLOGICAL INFORMATION DETECTION DEVICE

Номер: US20130137956A1
Автор: KANEKO Takahiro, KATO Teruo, KAWAMATA Hiroshi, KOSHOJI Hideaki, OKUDA Hideki, OMORI Nobukazu, TERASAWA Dai
Принадлежит: SEIKO INSTRUMENTS INC.

A biological information detection device includes a main body portion, a heartbeat detection portion, forced integrally with the main, body portion, which has electrodes that come into contact with a biological surface, and a fixing band, detachably provided to the main body portion, which mounts the main body portion and the heartbeat detection portion to a user. A sealing portion for securing sealing of an electrical connection portion is provided in the periphery of the electrical connection portion that electrically connects the main body portion to the electrodes of the heartbeat detection portion. 1. A biological information detection device comprising:a device main body:a biological signal detection portion, formed integrally with the device main body, which has an electrode that comes into contact with s biological surface; anda fixing portion, detachable provided to the device main body, which mounts the device main body and the biological signal detection portion to a human body,wherein a sealing portion for securing sealing of an electrical connection portion is provided in the periphery of the electrical connection portion that electrically connects the device main body to the electrode of the biological signal detection portion.2. The biological information detection device according to claim 1 , wherein the sealing portion is integrally formed in the biological signal detection portion.3. The biological information detection device according to claim 1 , a groove is formed between the electrical connection portion and the sealing portion.4. The biological information detection device according to claim 1 , wherein the biological signal detection portion is formed from conductive elastomer claim 1 , and the conductive elastomer serves as the electrode. 1. Field of the InventionThe present invention relates to a biological information detection device that detects a biological signal by installing an electrode on the biological surface of the human body ...

Подробнее
Номер записи: 46
30-05-2013 дата публикации

THERMAL POWERED MEDICAL DEVICE

Номер: US20130137957A1
Автор: Baker Steven D., Wood Robert J.
Принадлежит: WELCH ALLYN, INC.

A thermal powered medical device generates power from a temperature differential between a living body and a differential temperature source. The power is supplied to power one or more electrical components of the medical device. 1. A device comprising:a thermoelectric device having a first portion and a second portion and operable to generate a low-voltage output from a temperature differential;a heat source interface device thermally coupled to the first portion of the thermoelectric device and configured to be placed in contact with a portion of a living body having a first temperature;a differential temperature source thermally coupled to the second portion of the thermoelectric device and configured to have a second temperature different than the first temperature, wherein the temperature differential is the difference between the first and second temperatures; anda boost circuit electrically coupled to the thermoelectric device and the electrical component, wherein the boost circuit is configured to boost the low-voltage output to a higher-voltage output to power an electrical component.2. The device of claim 1 , wherein the device is a handheld device.3. The device of claim 2 , wherein the handheld device comprises a handle sized to be held in a hand claim 2 , wherein the heat source interface includes at least one layer of thermally conductive material that forms an exterior of the handle.4. The device of claim 3 , wherein the at least one layer of thermally conductive material defines an interior space claim 3 , and wherein the thermoelectric device and the differential temperature source are at least partially arranged within the interior space.5. The device of claim 4 , wherein the differential temperature source is a metallic core and wherein the thermoelectric device is positioned between and thermally coupled to the metallic core and the at least one layer of thermally conductive material.6. The device of claim 1 , wherein the thermoelectric device ...

Подробнее
Номер записи: 47
30-05-2013 дата публикации

User Interface For Artifact Removal In An EEG

Номер: US20130138010A1
Автор: Nierenberg Nicolas, Scheuer Mark L., WILSON SCOTT B.
Принадлежит: PERSYST DEVELOPMENT CORPORATION

A method and system for a user interface for artifact removal in an EEG is disclosed herein. The invention allows an operator to select a plurality of artifacts to be automatically removed from an EEG recording using a user interface. The operator pushes a button on the user interface to apply a plurality of filters to remove the plurality of artifacts from the EEG and generate a clean EEG for viewing. 1. A method for removing artifacts in an EEG recording , the method comprising:generating an EEG recording from a machine comprising a plurality of electrodes, an amplifier and processor;filtering the EEG to remove a first artifact to generate a first filtered EEG;filtering the first filtered EEG to remove a second artifact to generate a second filtered EEG;filtering the second filtered EEG to remove a third artifact to generate a third filtered EEG;filtering the third filtered EEG to remove a fourth artifact to generate a fourth filtered EEG;generating a clean EEG for viewing from a last filtered EEG.2. The method according to wherein each of the first artifact claim 1 , the second artifact claim 1 , the third artifact and the fourth artifact is selected from the group comprising muscle artifact claim 1 , eye movement artifact claim 1 , electrical artifact claim 1 , heartbeat artifact claim 1 , tongue movement artifact claim 1 , and chewing artifact.3. A method for removing artifacts in an EEG recording claim 1 , the method comprising:selecting a plurality of artifacts to automatically removed from an EEG recording using a user interface;selecting a display mode for presenting the EEG;generating an EEG recording from a EEG system;applying the filters to the EEG recording to automatically remove the plurality of artifacts;generating a clean EEG for viewing.4. The method according to further comprising selecting colors for traces and the amount of darkness.5. The method according to wherein each of the plurality of artifacts comprises at least two of muscle artifact ...

Подробнее
Номер записи: 48
30-05-2013 дата публикации

Method And System For Detecting And Removing EEG Artifacts

Номер: US20130138356A1
Автор: Mark L. Scheuer, Nicolas Nierenberg, Scott B. Wilson
Принадлежит: Persyst Development Corp

A method and system for detecting and removing EEG artifacts is disclosed herein. Each source of a plurality of sources for an EEG signal is separated for a selected artifact type. Each source of the plurality of sources is reconstituted into a recorded montage and an optimal reference montage for recognizing the selected artifact type of each source. The sources with artifacts are removed and the remaining sources are reconstituted into a filtered montage for the EEG signal.

Подробнее
Номер записи: 49
06-06-2013 дата публикации

HEART LOCATION AND VERIFICATION IN EMISSION IMAGES

Номер: US20130142410A1
Автор: Bandzava Teimuraz, Dwivedi Shekhar, Misra Satrajit, Song Xiyun, Ye Jinghan
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

An apparatus comprises: an imaging system () configured to acquire emission data from a cyclically varying element; a monitoring instrument () configured to measure the cyclical varying of the cyclically varying element; and an electronic device () configured to locate an image feature corresponding to the cyclically varying element in the acquired emission data based on correlation of time variation of the emission data with the cyclical varying of the cyclically varying element measured by the monitoring instrument. The located image feature may be verified by: thresholding a projection image generated from the emission data to generate a mask image; identifying in the mask image one of (i) a hollow circular feature, (ii) a hollow oval feature, (iii) a circular cavity feature, and (iv) an oval cavity feature; and verifying the located image feature based on whether the identifying operation is successful 1. A method comprising:binning emission data acquired from a cyclically varying element into a plurality of different phases of the cyclical varying;computing difference emission data comprising differences between emission data in the different phases of the cyclical varying; andlocating an image feature corresponding to the cyclically varying element in the emission data based on the difference emission data;wherein at least the computing and locating are performed by an electronic device.2. The method as set forth in claim 1 , wherein the cyclically varying element is a beating heart claim 1 , the cyclical varying is the beating of the heart claim 1 , and the plurality of different phases are a plurality of different cardiac phases of the beating of the heart.3. The method as set forth in claim 1 , wherein the computing comprises:computing difference projection data in projection data space comprising differences between projection data in the different phases of the cyclical varying.4. The method as set forth in claim 3 , wherein the computing comprises: ...

Подробнее
Номер записи: 50
06-06-2013 дата публикации

Implantable neural tissue reporting probe and methods of manufacturing and implanting same

Номер: US20130144145A1
Автор: Ellis Meng
Принадлежит: University of Southern California USC

A method of manufacturing an implantable neural tissue reporting probe may include affixing multiple electrodes to polymeric material; heating the polymeric material to a temperature that is above its glass transition temperature, but below its melting temperature; applying force to the polymeric material while heated so as to cause the polymeric material to change into a shape that is suitable for implanting in neural tissue, the shape including a compartment having at least one opening therein sized to permit dendritic growth to occur through the opening from outside of the compartment to within the compartment after the probe is implanted; and allowing the polymeric material to cool down below its glass transition temperature while maintaining the shape of the compartment, including while maintaining the shape of the opening therein. Related probes and methods of implanting them into neural tissue are also disclosed.

Подробнее
Номер записи: 51
06-06-2013 дата публикации

LONG-TERM MONITORING FOR DISCRIMINATION OF DIFFERENT HEART RHYTHMS

Номер: US20130144146A1
Автор: Linker David Thor
Принадлежит: UNIVERSITY OF WASHINGTON

A method, system, and device for detection of an arrhythmia, and discrimination between different types of arrhythmia, for example to determine whether to administer an electric shock to the heart, the device comprising a wearable monitor with electrodes that detect the electrical activity of a beating heart, attached to an embedded monitoring system having an amplifier, a microprocessor, a data storage device, and a power supply, all disposed on a substrate having large distal end portions that attach to the electrodes and a narrow intermediate portion that attaches to the monitoring system. 1. A wearable cardiac arrhythmia monitoring and detection device comprising:an elongate substrate having an enlarged first end incorporating a first electrode, an enlarged second end incorporating a second electrode, and a narrower intermediate portion connecting the first and second ends, the narrower portion incorporating an integrated monitoring device;wherein the integrated monitoring device comprises: (i) an amplifier configured to receive and amplify electrocardiography data from the first and second electrodes; (ii) a programmable microprocessor configured to receive the electrocardiography data from the amplifier and to analyze the received data; (iii) a data storage device configured to receive and store at least a portion of the electrocardiography data from the programmable microprocessor; and (iv) a power supply.2. The wearable cardiac arrhythmia monitoring and detection device of claim 1 , wherein the programmable microprocessor is configured to identify cardiac arrhythmia claim 1 , and further wherein only electrocardiography data associated with detected cardiac arrhythmia is stored by the data storage device.3. The wearable cardiac arrhythmia monitoring and detection device of claim 2 , wherein the microprocessor compresses the electrocardiography data associated with detected atrial fibrillation prior to the data being stored by the data storage device.4. The ...

Подробнее
Номер записи: 52
06-06-2013 дата публикации

METHODS AND SYSTEMS FOR ATRIAL FIBRILLATION DETECTION

Номер: US20130144180A1
Автор: Chon Ki H., Lee Jinseok
Принадлежит: WORCESTER POLYTECHNIC INSTITUTE

Methods and systems for automatic detection of Atrial Fibrillation (AF) are disclosed. The methods and systems use time-varying coherence functions (TVCF) to detect AF. The TVCF is estimated by the multiplication of two time-varying transfer functions (TVTFs). 1. A processor implemented method for detecting atrial fibrillation , the processor implemented method comprising:obtaining, using one or more processors, a time-varying coherence function by multiplying two time-varying transfer functions (TVFTs), the two time-varying transfer functions obtained using two adjacent data segments, each adjacent data segment being a data segment related to R-R intervals, with one data segment as input signal and another data segment as output to produce a first TVTF; a second TVTF is produced by reversing input and output signals, using said another data segment as input signal and said one data segment as output; anddetermining, using one or more processors, whether the time-varying coherence function is less than a predetermined quantity.2. The method of wherein determining whether the time-varying coherence function is less than the predetermined quantity comprises:obtaining one or more indicators of atrial fibrillation; anddetermining whether the one or more indicators of atrial fibrillation exceed predetermined thresholds.3. The method of wherein the one or more indicators of atrial fibrillation comprise a variance of the time coherence function.4. The method of wherein the one or more indicators of atrial fibrillation also comprise Shannon entropy.5. The method of wherein the predetermined thresholds are determined using receiver operator characteristic (ROC) analysis.6. A system for detecting atrial fibrillation claim 2 , the system comprising:an analysis component analyzing a signal related to R-R intervals; the analysis component obtaining a time-varying coherence function by multiplying two time-varying transfer functions (TVFTs), the two time-varying transfer ...

Подробнее
Номер записи: 53
06-06-2013 дата публикации

MEASUREMENTS OF FATIGUE LEVEL USING HEART RATE VARIABILITY DATA

Номер: US20130144181A1
Автор: Cooke William H., Fogt Donovan L., Kalns John E., Michael Darren J.
Принадлежит:

Methods, apparatuses, and systems for quantifying fatigue of a subject are disclosed. The methods may include measuring an electrocardiogram (ECG) signal from the subject. The methods may further include calculating, with a processing device, a Heart Rate Variability (HRV) metric in response to the ECG signal. The methods may additionally include calculating, with a processing device, a fatigue level in response to the HRV metrics. 1. A method for quantifying fatigue of a subject , the method comprising:measuring an electrocardiogram (ECG) signal from the subject;calculating, with a processing device, a Heart Rate Variability (HRV) metric in response to the ECG signal; andcalculating, with a processing device, a fatigue level in response to the HRV metric.2. The method of claim 1 , further comprising transmitting the ECG signal to the processing device after measuring the ECG signal from the subject.3. The method of claim 1 , further comprising triggering an alarm in response to the fatigue level.4. The method of claim 3 , further comprising subjecting the subject to a stressor and assessing change in the HRV metric versus decline in cognitive performance.5. The method of claim 1 , wherein calculating the HRV metric comprises determining the average R-R interval over a period of time.6. The method of claim 5 , wherein the period of time is 30 seconds to 15 minutes.7. The method of claim 1 , wherein calculating the HRV metric comprises determining the R-R interval standard deviation over a period of time.8. The method of claim 7 , wherein the period of time is 30 seconds to 15 minutes.9. The method of claim 1 , wherein calculating the HRV metric comprises calculating the power spectral density of the ECG signal.10. The method of claim 9 , wherein calculating the power spectral density comprises:filtering the ECG signal with a low-pass impulse response filter to form a filtered ECG signal; andperforming a Fourier transform on the filtered ECG signal to form a ...

Подробнее
Номер записи: 54
06-06-2013 дата публикации

System and Method for Guidance of Anesthesia, Analgesia and Amnesia

Номер: US20130144183A1
Автор: JOHN Erwin R., PRICHEP Leslie S.
Принадлежит: New York University

Method for determining anesthesia dosage includes following steps. First Interventional Agent (“FIA”) is administered to Patient at a first rate to achieve First Predetermined Plane of Anesthesia (“FPPA”). Brain waves of Patient are analyzed to formulate First Set of Data (“FSD”) corresponding to a self-norm during administration of FIA. First transfer function corresponding to patient biochemical reactions to FIA is computed from FSD. Rate of administration of FIA to Patient is altered by a selected amount after achievement of FPPA for first time required for Patient to deviate from FPPA by predetermined degree. An altered amount of FIA required to cause the predetermined deviation is determined as difference between amount of FIA that would have been delivered to Patient during first time at the first rate and an amount delivered to Patient during the first time at the altered rate. Patient is administered the altered amount of FIA. 130.-. (canceled)31. A method of determining a desired anesthesia dosage for a patient via a perturbation analysis , comprising:administering to the patient a first interventional agent at a first rate selected to achieve a first predetermined plane of anesthesia;analyzing brain waves of the patient to formulate a first set of data corresponding to a self-norm during administration of the first interventional agent;computing from the first set of data a first transfer function corresponding to patient biochemical reactions to the first interventional agent;altering the rate of administration of the first interventional agent to the patient by a selected amount after achievement of the first plane of anesthesia for a first time required for the patient to deviate from the first plane of anesthesia by a predetermined degree;determining an altered amount of the first interventional agent required to cause the predetermined deviation from the first plane of anesthesia as a difference between an amount of the first interventional agent that ...

Подробнее
Номер записи: 55
06-06-2013 дата публикации

SLEEP APNEA DETECTION SYSTEM

Номер: US20130144190A1
Автор: Bennet Kevin E., Bruce Charles J., Friedman Paul A., Somers Virend K.
Принадлежит: Mayo Foundation for Medical Education and Research

This document provides methods and materials (e.g., systems) related to assessing sleep conditions (e.g., sleep apnea). 1. A method for assessing sleep of a human in a normal sleep environment , wherein said method comprises:(a) detecting audible sounds from said human in said normal sleep environment using a mobile electronic device having a sound sensor, and(b) determining whether said audible sounds are indicative of normal sleep or a disorder present in said human.28-. (canceled)9. The method of claim 1 , wherein said audible sounds comprise snoring sounds of said human claim 1 , and said determining step comprises determining that said audible sounds are indicative of normal sleep.10. (canceled)11. The method of claim 1 , wherein said audible sounds comprise snoring sounds of said human claim 1 , and said determining step comprises determining that said audible sounds are indicative of said disorder.1214-. (canceled)15. The method of claim 11 , wherein said method comprises informing said human via said mobile device that said human has said disorder.16. The method of claim 1 , wherein said audible sounds comprise snoring sounds of said human claim 1 , and said determining step comprises determining that said audible sounds are indicative of sleep apnea.17. The method of claim 16 , wherein said method comprises informing said human via said mobile device that said human has sleep apnea.18. The method of claim 1 , wherein said audible sounds comprise snores of said human claim 1 , and said determining step comprises assessing the amplitude of said snores claim 1 , the interval between said snores claim 1 , the frequency composition of snores claim 1 , or the duration of snores.19. The method of claim 1 , wherein said audible sounds comprise snores of said human claim 1 , and said determining step comprises assessing the amplitude of said snores claim 1 , the interval between said snores claim 1 , the frequency composition of snores claim 1 , and the duration of ...

Подробнее
Номер записи: 56
13-06-2013 дата публикации

EVENT-BASED BIO-SIGNAL CAPTURING SYSTEM

Номер: US20130150698A1
Автор: Hsu Fu-Chieh, Juang Shauh-Teh, Peng Mark Shane
Принадлежит: OP Global Holdings Limited

An event-based bio-signal capturing system is disclosed. At least one bio-signal capturing device captures a bio-signal measured from biological beings; and at least one event capturing device captures an event and generates a corresponding event marker. A data recording device acquires the bio-signal and the event marker, wherein the bio-signal and the event marker are acquired with corresponding time reference for subsequent event-based data analysis. 1. An event-based bio-signal capturing system , comprising:at least one bio-signal capturing device configured to capture a bio-signal measured from biological beings;at least one event capturing device configured to capture an event and generate a corresponding event marker; anda data recording device configured to acquire the bio-signal and the event marker;wherein the bio-signal and the event marker are acquired with corresponding time reference for subsequent event-based data analysis.2. The system of claim 1 , wherein the event marker indicates a specific time and/or place of the associated bio-signal.3. The system of claim 1 , wherein the bio-signal capturing device and the event capturing device are separated from each other claim 1 , and are operated locally.4. The system of claim 1 , wherein the bio-signal capturing device and the event capturing device are integrated into a single module.5. The system of claim 1 , further comprising a storage area associated with the data recording device for storing the bio-signal and the event marker.6. The system of claim 1 , further comprising a master clock associated with the data recording device for deriving the time reference.7. The system of claim 1 , wherein the bio-signal and the event marker are acquired by the data recording device in a wired manner.8. The system of claim 1 , wherein the bio-signal and the event marker are acquired by the data recording device in a wireless manner.9. The system of claim 1 , wherein the event-based data analysis is performed in ...

Подробнее
Номер записи: 57
20-06-2013 дата публикации

INTEGRATED, HAND-HELD APPARATUS AND ASSOCIATED METHOD FOR ACQUIRING DIAGNOSTIC AND PROGNOSTIC INFORMATION FROM A PATIENT AT THE BEDSIDE OR AT SOME OTHER PATIENT LOCATION

Номер: US20130158363A1
Автор: Zoghbi William
Принадлежит:

An integrated, hand-held apparatus for acquiring diagnostic and prognostic information from a patient at the bedside or at some other patient location, the apparatus including a wand with a microphone for acquiring sound information from the patient and an ultrasound emitter/receiver for acquiring image data from the patient, a base unit including a speaker for presenting sound information to a user and a display for presenting image information to a user, and transferring the sound information acquired by the microphone and the image information acquired by the ultrasound emitter/receiver from the wand to the base unit. 1. An integrated , hand-held apparatus for acquiring diagnostic and prognostic information from a patient at the bedside or at some other patient location , the apparatus comprising: a microphone for acquiring sound information from the patient; and', 'an ultrasound emitter/receiver for acquiring image data from the patient; and, 'a wand comprising a speaker for presenting sound information to a user; and', 'a display for presenting image information to a user; and, 'a base unit comprisingtransferring means for transferring the sound information acquired by the microphone, and the image information acquired by the ultrasound emitter/receiver, from the wand to the base unit.2. Apparatus according to wherein the wand is releasably secured to the base unit.3. Apparatus according to wherein the base unit is configured to present sound information as image information on the display.4. Apparatus according to wherein the transferring means are configured to wirelessly transfer the sound information acquired by the microphone claim 1 , and the image information acquired by the ultrasound emitter/receiver claim 1 , from the wand to the base unit.5. Apparatus according to wherein the base unit comprises a base unit wireless transceiver claim 4 , the wand comprises a wand wireless transceiver claim 4 , and the wand wireless transceiver is configured to ...

Подробнее
Номер записи: 58
20-06-2013 дата публикации

Device Embodied to Measure Vital Parameters of a Patient

Номер: US20130158364A1
Автор: Hayn Henning, Ladstaetter Ulrich
Принадлежит: ROBERT BOSCH GMBH

A measuring device includes a plurality of measuring modules and a control module. The plurality of measuring modules is configured to measure vital parameters of a patient, with at least two measuring modules of the plurality of measuring modules being configured to measure different vital parameters. The control module is configured to evaluate the measured vital parameters and/or to carry out calculations based on the measured vital parameters. 1. A measuring device , comprising:a plurality of measuring modules configured to measure vital parameters of a patient, with at least two measuring modules of the plurality of measuring modules being configured to measure different vital parameters; anda control module configured to evaluate the measured vital parameters and/or to carry out calculations on the basis of the measured vital parameters.2. The measuring device according to claim 1 , wherein:the measuring device has a modular configuration,the plurality of measuring modules are removable from the measuring device,the plurality of measuring modules are replaceable, and/orat least one new measuring module is addable to the measuring device.3. The measuring device according to claim 1 , further comprising:a plurality of interfaces configured to connect the measuring modules to the control module.4. The measuring device according to claim 1 , wherein the control module is further configured (i) to calculate characteristics based on the measured vital parameters claim 1 , and/or (ii) to calculate further information in respect of the patient based on the measured vital parameters.5. The measuring device according to claim 4 , wherein:the control module is further configured to compare the calculated characteristics to predetermined limits, andthe measuring device is configured to display a result of the comparison.6. The measuring device according to claim 4 , wherein the measuring device is further configured to identify the patient based on patient-specific ...

Подробнее
Номер записи: 59
20-06-2013 дата публикации

SYSTEM FOR MONITORING AND MANAGING BODY WEIGHT AND OTHER PHYSIOLOGICAL CONDITIONS INCLUDING ITERATIVE AND PERSONALIZED PLANNING, INTERVENTION AND REPORTING CAPABILITY

Номер: US20130158368A1
Автор: Andre David, Farringdon Jonathan, Handel Mark, Hanlon James, Hsiung Eric, Menke Steve, Pacione Christopher, Pelletier Raymond, Safier Scott, Shassberger Steve, Spruce Neal, Stivoric John M., Teller Eric, Vishnubhatla Suresh
Принадлежит: BodyMedia, Inc.

A nutrition and activity management system is disclosed that monitors energy expenditure of an individual through the use of a body-mounted sensing apparatus. The apparatus is particularly adapted for continuous wear. The system is also adaptable or applicable to measuring a number of other physiological parameters and reporting the same and derivations of such parameters. A weight management embodiment is directed to achieving an optimum or preselected energy balance between calories consumed and energy expended by the user. An adaptable computerized nutritional tracking system is utilized to obtain data regarding food consumed, Relevant and predictive feedback is provided to the user regarding the mutual effect of the user's energy expenditure, food consumption and other measured or derived or manually input physiological contextual parameters upon progress toward said goal. 1278-. (canceled)279. A system for monitoring and managing body weight comprised of:a body mounted detection apparatus for detecting data indicative of human status parameters selected from the group consisting of energy expenditure and nutritional parameters of an individual; anda monitoring unit in communication with said detection apparatus for receiving at least one of (i) manually input and (ii) detected human status parameter data and manipulating said data to provide feedback with respect to the mutual effect of changes in said human status parameters upon each other.280. A system as described in claim 279 , wherein said body mounted detection apparatus comprises at least one sensor for detecting at least one of said human status parameters.281. A system as described in claim 280 , wherein said body mounted detection apparatus is an armband sensor device.282. A system as described in claim 280 , wherein said body mounted detection apparatus further comprises at least one sensor for detecting contextual parameters.283. A system as described in claim 282 , further comprising at least one ...

Подробнее
Номер записи: 60
20-06-2013 дата публикации

Alarm Processor for Detection of Adverse Hemodynamic Effects of Cardiac Arrhythmia

Номер: US20130158375A1
Автор: Lynn Lawrence A.
Принадлежит:

The disclosed embodiments relate to an apparatus and method for providing a warning. In one example, an apparatus includes a sensor, which is configured to be coupled to a body of a patient and to output a photoplethysmograph signal, which is indicative of pulse waveforms in the body. The apparatus also includes a processor, which is coupled to process the photoplethysmograph signal so as to identify sequential pulse waveforms in the signal, the processor detecting a cardiac arrhythmia based on identifying a shape feature of the pulse waveform occurring simultaneously with a change in rate or rhythm of the pulse waveforms or an electrocardiographic waveform, and to output a warning responsive to the simultaneous occurrence. 1. An apparatus for providing a warning , comprising:a sensor, which is configured to be coupled to a body of a patient and to output a photoplethysmograph signal, which is indicative of pulse waveforms in the body; anda processor, which is coupled to process the photoplethysmograph signal so as to identify sequential pulse waveforms in the signal, the processor detecting a cardiac arrhythmia based on identifying a shape feature of the pulse waveform occurring simultaneously with a change in rate or rhythm of the pulse waveforms, and to output a warning responsive to the simultaneous occurrence.2. The apparatus of claim 1 , wherein the change in shape feature comprises at least one of a fall in the amplitude claim 1 , an upstroke claim 1 , or an area under a curve of the pulse waveforms.3. The method of claim 1 , wherein the change in shape feature comprises the occurrence of an irregular pattern of the amplitude claim 1 , an upstroke claim 1 , or an area under a curve of the pulse waveforms.4. The apparatus of claim 1 , wherein the processor is programmed to convert the signal into a time series of sequential objects.5. The apparatus of claim 1 , wherein the processor is programmed to generate a time series of sequential objects comprising ...

Подробнее
Номер записи: 61
20-06-2013 дата публикации

BIOLOGICAL INFORMATION DETECTION DEVICE

Номер: US20130158380A1
Автор: KANEKO Takahiro, KATO Teruo, KAWAMATA Hiroshi, KOSHOJI Hideaki, OKUDA Hideki, OMORI Nobukazu, TERASAWA Dai
Принадлежит: SEIKO INSTRUMENTS INC.

A biological information detection device includes a main body portion, a heartbeat detection portion, provided integrally with the main body portion, which has electrodes that come into contact with a biological surface, and a fixing band, detachably provided to the main body portion, which mounts the main body portion and the heartbeat detection portion to a human body. The main body portion and the heartbeat detection portion are integrally provided through a mechanical connection convex portion that mechanically connects the main body portion and the heartbeat detection portion to each other, and an electrical connection portion that electrically connect the main body portion and the electrodes of the heartbeat detection portion. A relative positional relationship between the mechanical connection convex portion and the electrical connection portion is set so as not to be arranged alongside a load direction of external force acting on the mechanical connection convex portion. 1. A biological information detection device comprising:a device main body;a biological signal detection portion, formed integrally with the device main body, which has an electrode that comes into contact with a biological surface; anda fixing portion, detachably provided to the device main body, which mounts the device main body and the biological signal detection portion to a human body,wherein the device main body and the biological signal detection portion are integrally provided through a mechanical connection portion that mechanically connects the device main body and the biological signal detection portion to each other, and an electrical connection portion that electrically connects the device main body and the electrode of the biological signal detection portion to each other, anda relative positional relationship between the mechanical connection portion and the electrical connection portion is set so as not to be arranged alongside a load direction of external force acting on ...

Подробнее
Номер записи: 62
27-06-2013 дата публикации

PERCUTANEOUS DEVICES AND METHODS TO VISUALIZE, TARGET AND ABLATE NERVES

Номер: US20130165764A1
Автор: HASTINGS ROGER N., SCHEUERMANN TORSTEN, Teo Tat-Jin
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

Apparatuses for identifying nerve tissue and methods for making and using the same are disclosed. An example apparatus may include an elongate shaft having a distal region configured to be percutaneously deployed within a patient. An active imaging structure may be disposed on the distal region. The active imaging structure may be configured to remotely image nerve tissue by exciting a signal in nerve tissue from a percutaneous location and receiving the signal from a percutaneous location. The active imaging structure may include one or more probes. 1. An apparatus for identifying nerve tissue , the apparatus comprising:an elongate shaft having a distal region configured to be percutaneously deployed within a patient;an active imaging structure disposed on the distal region, the active imaging structure configured to remotely image nerve tissue by exciting a signal in nerve tissue from a percutaneous location and receiving the signal from a percutaneous location; andwherein the active imaging structure includes one or more probes.2. The apparatus of claim 1 , wherein the active imaging structure comprises a first percutaneous probe for exciting the signal and a second percutaneous probe for receiving the signal.3. The apparatus of claim 1 , wherein the active imaging structure comprises a single percutaneous probe for exciting and receiving the signal.4. The apparatus of claim 1 , wherein the elongate shaft comprises a fixation element in the distal region claim 1 , the fixation element having a collapsed configuration and an expanded configuration.5. The apparatus of claim 4 , wherein the catheter further comprises a module disposed in the distal region and wherein the one or more probes are disposed on said module and wherein the module is rotatable with respect to the fixation element.6. The apparatus of claim 5 , wherein the fixation element is an expandable balloon and the module is disposed within a cavity of the balloon.7. The apparatus of claim 1 , wherein ...

Подробнее
Номер записи: 63
27-06-2013 дата публикации

Biomagnetism Measuring Device, Biomagnetism Measuring System, and Biomagnetism Measuring Method

Номер: US20130165766A1
Автор: Ando Yasuo, Nishikawa Takuo
Принадлежит:

A biomagnetism measuring device includes a magnetic sensor and a support unit. The magnetic sensor includes a tunnel magneto-resistive element including a fixed magnetic layer, a free magnetic layer and an insulating layer. The insulating layer is disposed between the fixed magnetic layer and the free magnetic layer, and has resistance being changed by a tunnel effect depending on an angle difference between a direction of magnetization of the fixed magnetic layer and a direction of magnetization of the free magnetic layer. The support unit supports the magnetic sensor in such a way that the tunnel magneto-resistive element faces a living body. The magnetic sensor outputs an output signal in accordance with a resistance value of the insulating layer, the resistance value being changed by magnetism emitted from the living body. 1. A biomagnetism measuring device comprising: a tunnel magneto-resistive element including:', 'a fixed magnetic layer in which a direction of magnetization is fixed;', 'a free magnetic layer in which a direction of magnetization is changed by being influenced by a magnetic flux from outside; and', 'an insulating layer disposed between the fixed magnetic layer and the free magnetic layer, and having resistance being changed by a tunnel effect depending on an angle difference between the direction of the magnetization of the fixed magnetic layer and the direction of the magnetization of the free magnetic layer; and, 'a magnetic sensor includinga support unit which supports the magnetic sensor in such a way that the tunnel magneto-resistive element faces a living body, whereinthe magnetic sensor outputs an output signal in accordance with a resistance value of the insulating layer, the resistance value being changed by magnetism emitted from the living body.2. The biomagnetism measuring device according to claim 1 , wherein the magnetic sensor includes a tunnel magneto-resistive element array in which a plurality of the tunnel magneto-resistive ...

Подробнее
Номер записи: 64
27-06-2013 дата публикации

INTEGRATED DISPLAY OF ULTRASOUND IMAGES AND ECG DATA

Номер: US20130165781A1
Автор: Cardinale Michael Daniel, Salgo Ivan
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

A display system for ultrasound images and ECG data produces a common display of a cardiac ultrasound image of a given view and ECG traces relevant to that ultrasound view. The ECG traces relate to the heart anatomy seen in the ultrasound image. The user is given the ability to select certain ECG lead signals for display in conjunction with specific views of the heart. ST elevation values for the ECG leads may also be shown to enable the clinician to correlate electrical abnormalities with anatomical abnormalities of the ultrasound image such as abnormal wall motion or thickening. The ST elevation values are displayed on a bullseye chart in association with heart regions related to the leads for which the ST values were detected. 1. A diagnostic system for ultrasound image and ECG lead signal data comprising:a source of ultrasound images of a heart acquired from one or more viewing perspectives;a source of ECG lead signal data;a display processor, responsive to the ultrasound images and the ECG lead signal data which is adapted to produce a common display of an ultrasound image and ECG lead signal data corresponding to the viewing perspective of the ultrasound image; anda display device, coupled to the display processor, for displaying the common ultrasound and ECG display.2. The diagnostic system of claim 1 , further comprising a data storage device claim 1 , responsive to ultrasound image data and ECG lead signal data claim 1 , and coupled to the display processor.3. The diagnostic system of wherein the ECG lead signal data further comprises traces of ECG waveforms.4. The diagnostic system of claim 3 , wherein the source of ECG lead signal data further comprises signals of at least twelve ECG leads claim 3 , and wherein the display processor processes signals of fewer than twelve leads for display on the common display.5. The diagnostic system of claim 4 , wherein the display processor is further adapted to process signals of up to four leads for display on the ...

Подробнее
Номер записи: 65
27-06-2013 дата публикации

ULTRASONIC DIAGNOSTIC APPARATUS, MEDICAL IMAGE DIAGNOSTIC APPARATUS, AND MEDICAL IMAGE PROCESSING METHOD

Номер: US20130165789A1
Автор: Hamada Kenji, Kamiyama Naohisa, YAO Cong, YONEYAMA Naoki
Принадлежит:

According to one embodiment, an ultrasonic diagnostic apparatus comprises a data acquisition unit, an image generation unit, a calculation unit, a determination unit and a measurement unit. The data acquisition unit acquires a plurality of ultrasonic data. The image generation unit generates a plurality of ultrasonic images by using the plurality of ultrasonic data. The calculation unit calculates a feature amount for determining a shift between the two-dimensional section and a central axis of a target blood vessel. The determination unit determines an optimal image from the plurality of ultrasonic images based on the feature amount. The measurement unit measures an intima-media thickness of the target blood vessel by using the optimal image. 1. An ultrasonic diagnostic apparatus comprising:a data acquisition unit configured to acquire a plurality of ultrasonic data by repeatedly scanning a two-dimensional section including a target blood vessel with an ultrasonic wave;an image generation unit configured to generate a plurality of ultrasonic images by using the plurality of ultrasonic data;a calculation unit configured to calculate a feature amount for determining a shift between the two-dimensional section and a central axis of the target blood vessel in a running direction on the each ultrasonic image;a determination unit configured to determine an optimal image from the plurality of ultrasonic images based on the feature amount; anda measurement unit configured to measure an intima-media thickness of the target blood vessel by using the optimal image.2. The apparatus of claim 1 , wherein the data acquisition unit acquires the plurality of ultrasonic data in correspondence with a phase of a biological signal which periodically changes by performing the scan in synchronism with the biological signal claim 1 ,the image generation unit generates the plurality of ultrasonic images associated with the phase of the biological signal,the calculation unit selects a ...

Подробнее
Номер записи: 66
27-06-2013 дата публикации

R-PEAK DETECTION APPARATUS AND CONTROL METHOD THEREOF

Номер: US20130165805A1
Автор: Hwang Do-Sik, Jang Ung, Kim Ji-han, Lee Sang-Hun
Принадлежит:

A method of controlling of an R-peak detection apparatus, which detects an R-peak from an ElectroCardioGram (ECG) signal, includes receiving the ECG signal, reading out a pre-stored ECG template, comparing the EG signal with the pre-stored ECG template to determine a similarity between the ECG signal and the pre-stored ECG template and determining whether the similarity is equal to or greater than a threshold value, and determining a corresponding interval as the R-peak when the similarity is equal to or greater than the threshold value. 1. A method of controlling of an R-peak detection apparatus which detects an R-peak from an ElectroCardioGram (ECG) signal , the method comprising:receiving the ECG signal;reading out a pre-stored ECG template;comparing the received ECG signal with the pre-stored ECG template to determine a similarity between the ECG signal and the pre-stored ECG template; anddetermining whether the similarity is equal to or greater than a threshold value, and determining a corresponding interval as the R-peak when the similarity is equal to or greater than the threshold value.2. The method of claim 1 , further comprising:filtering the received ECG signal to remove noise from the ECG signal.3. The method of claim 1 , wherein the similarity between the ECG signal and the pre-stored ECG template isdetermined based on a resulting value of a correlation between the ECG signal and the pre-stored ECG template.5. The method of claim 1 , further comprising claim 1 , subsequent to determining the similarity and prior to determining the R-peak:determining a corresponding interval in which the similarity is equal to or greater than the threshold value as an R-peak candidate;processing the ECG signal based on the R-peak candidate to update the pre-stored ECG template;determining an updated similarity by comparing the updated ECG template with the ECG signal; andupdating the R-peak candidate based on the updated similarity.6. The method of claim 5 , wherein ...

Подробнее
Номер записи: 67
27-06-2013 дата публикации

Direct Neural Interface System and Method of Calibrating It

Номер: US20130165812A1
Автор: Aksenova Tetiana, Yelisyeyev Andriy
Принадлежит: Commissariat A L'Energie Atomique Et Aux Energies Alternatives

A direct neural interface system comprising: signal acquisition means (-) for acquiring electrophysiological signals representative of a neuronal activity of a subject's brain (B); preprocessing means (PPM) for conditioning, digitizing and preprocessing said electrophysiological signals; processing means (PM) for processing the digitized and preprocessed electrophysiological signals and for generating command signals as a function thereof; and output means for outputting said command signals; characterized in that said processing means are adapted for: representing the electrophysiological signals acquired over an observation time window in the form of a N-way data tensor, N being greater or equal to three; and generating command signals corresponding to said observation time window by applying a multi-way regression model over said data tensor. A method of calibrating said direct neural interface system. 1. A direct neural interface system comprising:signal acquisition means for acquiring electrophysiological signals representative of a neuronal activity of a subject's brain (B);preprocessing means (PPM) for conditioning, digitizing and preprocessing said electrophysiological signals;processing means (PM) for processing the digitized and preprocessed electrophysiological signals and for generating command signals as a function thereof; andoutput means for outputting said command signals;wherein said processing means are configured to:representing the electrophysiological signals acquired over an observation time window in the form of a N-way data tensor, N being greater or equal to two; andgenerating command signals corresponding to said observation time window by applying a multi-way regression model over said data tensor.2. A direct neural interface system according to claim 1 , wherein said processing means are configured to representing the electrophysiological signals acquired over an observation time window in the form of a three-way data tensor claim 1 , ...

Подробнее
Номер записи: 68
27-06-2013 дата публикации

SYSTEM AND METHODS FOR DETERMINING NERVE PROXIMITY, DIRECTION AND PATHOLOGY DURING SURGERY

Номер: US20130165814A1
Автор: Blewett Jeffrey J., Farquhar Allen, Gharib James, Kaula Norbert
Принадлежит: NUVASIVE, INC.

The present invention involves systems and methods for determining nerve proximity, nerve direction, and pathology relative to a surgical instrument based on an identified relationship between neuromuscular responses and the stimulation signal that caused the neuromuscular responses. 1. A system for establishing an operative corridor for spinal surgery , comprising:a plurality of sequential dilators deliverable through bodily tissue having neural structures in a selected path toward a targeted intervertebral disc of a spine, at least one sequential dilator of the plurality of sequential dilators having a stimulation electrode positioned along a distal tip region to deliver a stimulation signal to the bodily tissue when the sequential dilator is positioned in the selected path toward the targeted intervertebral disc of the spine;a nerve monitoring system comprising a control unit and a plurality of leg muscle sensor electrodes, the nerve monitoring system being configured to deliver an electrical stimulation signal to the stimulation electrode when said sequential dilator is positioned along the selected path toward the targeted intervertebral disc of the spine, the nerve monitoring system being configured to monitor electrical activity detected by the plurality of leg muscle sensor electrodes, and the control unit of the nerve monitoring system being configured to display to a user a numeric stimulation current threshold required to obtain the detected electrical activity at one or more of said leg muscle sensor electrodes; anda working corridor instrument deliverable over an outer dilator of the plurality of sequential dilators toward the targeted intervertebral disc of the spine, wherein the working corridor instrument is configured to establish an operative corridor to the targeted intervertebral disc of the spine.2. The system of claim 1 , further comprising an initial dilating assembly configured to advance through the bodily tissue along the selected path ...

Подробнее
Номер записи: 69
04-07-2013 дата публикации

Emergency Medical Diagnosis and Communications Device

Номер: US20130172689A1
Автор: Dossas Vasilios D., Dy Lady C., Kraft Clifford H.
Принадлежит:

A portable emergency medical device capable of communicating with a remote location preferably as a cellular telephone that can measure one or more human vital parameters such as pulse rate, body temperature, skin moisture, blood pressure, ECG or blood chemistry and can receive symptoms from a user either by voice recognition or by keypad and can provide an expert medical diagnosis. The device can store a complete medical history for one or more users and can use an expert system to make the diagnosis. The device can make an emergency medical call either on command or automatically requesting help and optionally supplying medical information and/or GPS location information. 1. A personal medical diagnosis apparatus comprising:a cellular telephone module including a processor and memory;a medical expert system disposed in said memory and executable on said processor;a medical probe that measures at least one human medical parameter, said probe being in data communication with said medical expert system; andan input device, including a keyboard and circuitry through which the medical expert system receives symptom data;the expert system receiving imputed symptom data and at least one medical parameter and making a medical diagnosis.2. The personal medical diagnosis apparatus of further comprising a GPS receiver in communication with said processor claim 1 , wherein said processor is adopted to report a geographic location of said medical diagnosis apparatus to a remote station.3. The personal medical diagnosis apparatus of further comprising a housing wherein said medical probe is at least one of:a blood pressure sensor in or deployable from said housing;a pulse rate sensor in or deployable from said housing;a body temperature sensor in or deployable from said housing, or;an ECG interface in or deployable from said housing.4. The personal medical diagnosis apparatus of further comprising a housing wherein said medical probe is at least one of:a blood pressure sensor ...

Подробнее
Номер записи: 70
04-07-2013 дата публикации

Health monitoring appliance

Номер: US20130172691A1
Автор: Bao Tran
Принадлежит: Individual

A heart monitoring system for a person includes one or more wireless nodes forming a wireless network; a wearable body sensor having a wireless transceiver adapted to communicate with the one or more wireless nodes.

Подробнее
Номер записи: 71
04-07-2013 дата публикации

IDENTIFYING AREAS OF THE BRAIN BY EXAMINING THE NEURONAL SIGNALS

Номер: US20130172716A1
Автор: Cameron Tracy L., Lozano Andres M.
Принадлежит:

The present invention relates to a method of identifying a region of the brain by measuring neuronal firing and/or local field potentials by recording discharges from at least one implanted electrode and analyzing the recording of the discharges within the beta frequency band range to determine an area of beta oscillatory activity. Once the region of the brain is identified, this region may be stimulated to disrupt the beta oscillatory activity thereby treating a movement disorder. 1. A method of identifying a region of the brain comprising the steps of:measuring neuronal firing and/or local field potentials by recording discharges from at least one implanted electrode; andanalyzing the recording of the discharges within the beta frequency band range to determine an area of beta oscillatory activity thereby identifying the region of the brain.2. The method of claim 1 , wherein the electrode is implanted in the cortex claim 1 , subthalamic nucleus claim 1 , basal ganglia claim 1 , or globus pallidus.3. The method of claim 1 , wherein the discharges of neuronal firing and local field potentials are synchronized.4. The method of further comprising the step of stimulating the identified brain region to disrupt the discharges thereby treating a disease.5. The method of claim 4 , wherein the disease is a movement disorder.6. The method of claim 5 , wherein the movement disorder is Parkinson's disease.7. A method of improving at least one symptom in an individual suspected of having a movement disorder claim 5 , comprising the steps of:measuring neuronal firing and/or local field potentials by recording discharges from at least one electrode implanted in the subthalamic nucleus;analyzing the recording of the discharges within the beta frequency band range to determine an area of synchronized beta oscillatory activity; andstimulating the area to disrupt the beta oscillatory activity, thereby improving at least one symptom in the individual.8. The method of claim 7 , wherein ...

Подробнее
Номер записи: 72
04-07-2013 дата публикации

BIOMETRIC INFORMATION DETECTING APPARATUS

Номер: US20130172719A1
Автор: Sakai Satoshi, TAKAKURA Akira
Принадлежит: SEIKO INSTRUMENTS INC.

A biometric information detecting apparatus including: a pair of electrodes coming into contact with a surface of a living body; and a circuit board to which a pair of the electrodes are connected and configured to detect biometric information on the basis of a potential difference generated between a pair of the electrodes, the circuit board including an electrode connecting pattern Co which a pair of the electrodes are electrically connected, and a detection circuit unit configured to detect the biometric information on the basis of the potential difference; and a GND pattern provided on the circuit board between the electrode connecting pattern and the detection circuit unit. 1. A biometric information detecting apparatus comprising:a pair of electrodes coming into contact with a surface of a living body; anda circuit board to which a pair of the electrodes are connected and configured to detect biometric information on the basis of a potential difference generated between a pair of the electrodes, the circuit board including an electrode connecting pattern to which a pair of the electrodes are electrically connected, and a detection circuit unit configured to detect the biometric information on the basis of the potential difference; anda low potential pattern set to have a potential lower than that of the electrode connecting pattern provided on the circuit board between the electrode connecting pattern and the detection circuit unit.2. The biometric information detecting apparatus according to claim 1 , wherein the low potential pattern is set to a GND pattern.3. The biometric information detecting apparatus according to claim 1 , wherein the low potential pattern is provided in the periphery of the electrode connecting pattern.4. The biometric information detecting apparatus according to claim 2 , wherein the low potential pattern is provided in the periphery of the electrode connecting pattern.5. The biometric information detecting apparatus according to ...

Подробнее
Номер записи: 73
04-07-2013 дата публикации

METHOD AND APPARATUS FOR MEASURING MULTIPLE ECG LEADS USING A DEVICE WITH EMBEDDED LEADS

Номер: US20130172723A1
Автор: Baxi Amit S., R Raghavendra Rao
Принадлежит:

An apparatus and a method, the apparatus including a housing, an electrocardiogram (ECG) measuring circuit contained in the housing, and three electrodes embedded in the housing, electrically connected to the ECG measuring circuit, and in spaced apart configuration from each other. 1. An apparatus comprising:a housing;an electrocardiogram (ECG) measuring circuit contained in the housing; andthree electrodes embedded in the housing, electrically connected to the ECG measuring circuit, and in spaced apart configuration from each other.2. The apparatus of claim 1 , wherein the three electrodes are electrically conductive.3. The apparatus of claim 1 , wherein two of the three electrodes are arranged on a single surface of the housing and the third electrode is on another surface of the housing.4. The apparatus of claim 1 , where the ECG measuring circuit claim 1 , in cooperation with the three electrodes claim 1 , measures a plurality of ECG Leads.5. The apparatus of claim 4 , wherein the apparatus measures nine ECG Leads.6. The apparatus of claim 1 , further including a memory to store a measurement obtained by the apparatus.7. A method comprising claim 1 ,obtaining a first ECG Lead measurement by measuring a differential electrical signal using two of three electrodes of a device having three electrodes embedded in a housing, the electrodes electrically connected to an ECG measuring circuit in the housing, in spaced apart configuration from each other, and held in the hands of a user; andmeasuring a plurality of ECG Lead measurements by measuring a differential electrical signal using two of the three electrodes, one of the electrodes placed in a hand of the user and one of the electrodes placed in contact with a torso portion of the user.8. The method of claim 7 , further comprising measuring a plurality of ECG Lead measurements by measuring a differential electrical signal using two of the three electrodes claim 7 , one of the electrodes placed in a hand of the user ...

Подробнее
Номер записи: 74
04-07-2013 дата публикации

QUICK-RELEASE SELF-CONTAINED MEDICAL ELECTRODE

Номер: US20130172724A1
Автор: Adekoya Ayo, Ali Mohamed Aziz Mohamed Aziz, Considine Lee, Dementyev Artem, OLIVARES Nicolas, Rustag Jordan
Принадлежит: University of Maryland

A medical electrode demonstrates a superior adhesiveness to a patient's skin during medical data acquisition or treatment procedure yet attaining painless electrode removal from the skin when needed. The subject medical electrode is designed with adhesive neutralizer (or remover) solvent fully enveloped in one or several compartments embedded in an adhesive layer of the medical electrode unit. The compartments have a contact with the patient's skin when the electrode is attached thereto. When compressed by a medical personnel, the compartment releases the adhesive remover solvent directly to the skin-adhesive interface, thereby neutralizing (or removing) the adhesive material, thereby easing the electrode removal. The adhesive layer is made from PEO, sodium chloride, and water. The adhesive remover solvent contains isopropyl alcohol. A method of manufacturing the medical electrode is presented. 1. A medical electrode unit attachable to a patient's skin , comprising:an adhesive layer attachable to a patient's skin to maintain said medical electrode unit thereat, forming an adhesive-skin interface,an adhesive remover solvent,at least one compartment filled with said adhesive remover solvent and embedded in said adhesive layer and in close proximity to the patient's skin, said at least one compartment being defined by an impermeable envelope substantially fully surrounding said adhesive remover solvent, wherein, upon application of a force towards said envelope sufficient to break the envelope, said adhesive remover solvent passes directly to said adhesive-skin interface, thereby facilitating said medical electrode removal from the patient's skin.2. The medical electrode of claim 1 , wherein said adhesive layer is an electrically conductive hydrogel.3. The medical electrode of claim 1 , wherein said adhesive layer contains 6%-10 weight % of polyethylene oxide (PEO) claim 1 , 5%-8 weight % of sodium chloride claim 1 , and 80%-90 weight % of water.4. The medical ...

Подробнее
Номер записи: 75
04-07-2013 дата публикации

Methods, Devices And A Marker For Physical Condition Testing

Номер: US20130172764A1
Автор: Buckley Jonathan David
Принадлежит: University of South Australia

The present invention relates to methods and devices for testing the physical condition of an individual. The methods and devices rely on the use of a marker of physical condition, and have applications including determining an individuals state of physical recovery from prior physical or athletic activity, determining an individuals physiological readiness for optimal physical performance, determining changes in the risk of (or for assessing progression of) cardiovascular disease in an individual, and for determining exercise and/or athletic training instructions for an individual based on their recovery state, physiological readiness to perform, and/or their cardiovascular disease risk status. The methods and devices require a comparison between the rate of increase in heart rate of an individual during a sub-maximal physical activity, and a predetermined reference measurement. A rate of increase in heart rate which is faster or slower than the predetermined reference measurement will allow determination of the individuals recovery state, physiological readiness to perform, and/or their cardiovascular disease risk status. 194-. (canceled)95. A method for determining a recovery state of an individual from an athletic activity , the method including:(a) subjecting the individual to a sub-maximal physical activity;(b) measuring the heart rate of the individual during the sub-maximal physical activity;(c) determining the rate of increase in heart rate of the individual during the sub-maximal physical activity;(d) comparing the determined rate of increase in heart rate of the individual with a predetermined reference measurement; and(e) determining the recovery state of the individual from the athletic activity on the basis of the comparison.96. The method according to claim 95 , wherein:(i) the slower the rate of increase in heart rate of the individual during the sub-maximal physical activity compared to the predetermined reference measurement, the lower the recovery ...

Подробнее
Номер записи: 76
11-07-2013 дата публикации

METHOD AND SYSTEM TO MEASURE ECG AND RESPIRATION

Номер: US20130178719A1
Автор: Balji Jack, Rajagopalan Cadathur
Принадлежит: MINDRAY DS USA, INC.

A method for monitoring the respiration rate of a patient includes attaching a plurality of electrocardiogram (ECG) electrodes and a pressure sensor to a patient, producing a first respiration signal based on variations detected in signals provided by the ECG electrodes attached to the patient, and producing a second respiration signal based on pressure variations detected in the pressure sensor secured to the patient. The method also includes selecting at least one of the first respiration signal and the second respiration signal based on respective signal qualities and producing a respiration rate from the selected signal. The method also includes providing indicia of the respiration rate. The method may also include displaying ECG signals with the indicia of the respiration rate. 1. A patient monitoring system comprising:a plurality of electrocardiogram (ECG) lead channels configured to communicate with a plurality of ECG electrodes configured to attach to a patient;an ECG respiration component to produce a first respiration signal based on variations detected in the ECG lead channels;a pressure measurement channel to communicate with a pressure sensor attached to the patient;a pressure respiration component configured to detect variations in the pressure measurement channel and to produce a second respiration signal based on pressure variations detected in the pressure measurement channel;respiration decision logic configured to compare signal qualities of the first and second respiration signals to produce a respiration rate from at least one of the first respiration signal and the second respiration signal based on the respective signal qualities; anda display device to provide indicia of the respiration rate.2. The system of claim 1 , wherein the variations detected in the ECG lead channels comprise variations in thoracic impedance during patient respiration.3. The system of claim 2 , wherein the ECG respiration component is configured to:produce an impedance ...

Подробнее
Номер записи: 77
11-07-2013 дата публикации

Use of Machine Learning for Classification of Magneto Cardiograms

Номер: US20130178730A1
Автор: Embrechts Mark, Sternickel Karsten, Szymanski Boleslaw
Принадлежит: CARDIOMAG IMAGING, INC.

The use of machine learning for pattern recognition in magnetocardiography (MCG) that measures magnetic fields emitted by the electrophysiological activity of the heart is disclosed herein. Direct kernel methods are used to separate abnormal MCG heart patterns from normal ones. For unsupervised learning, Direct Kernel based Self-Organizing Maps are introduced. For supervised learning Direct Kernel Partial Least Squares and (Direct) Kernel Ridge Regression are used. These results are then compared with classical Support Vector Machines and Kernel Partial Least Squares. The hyper-parameters for these methods are tuned on a validation subset of the training data before testing. Also investigated is the most effective pre-processing, using local, vertical, horizontal and two-dimensional (global) Mahanalobis scaling, wavelet transforms, and variable selection by filtering. 1. A method for automating the identification of meaningful features and the formulation of expert rules for classifying magnetocardiography data , comprising:applying a wavelet transform to sensed data acquired from sensors sensing magnetic fields generated by a patient's heart activity, resulting in wavelet domain data;applying a direct kernel transform to said wavelet domain data, resulting in transformed data; andidentifying said meaningful features and formulating said expert rules from said transformed data, using machine learning.2. The method of claim 1 , said kernel transform satisfying Mercer conditions.3. The method of claim 1 , said kernel transform comprising a radial basis function.4. The method of claim 1 , said applying a kernel transform comprising:assigning said transformed data to a first hidden layer of a neural network;applying training data descriptors as weights of said first hidden layer of said neural network; andcalculating weights of a second hidden layer of said neural network numerically.5. The method of claim 1 , further comprising:classifying said transformed data using ...

Подробнее
Номер записи: 78
11-07-2013 дата публикации

METHODS AND APPARATUS FOR RISK ASSESSMENT OF DEVELOPMENTAL DISORDERS DURING EARLY COGNITIVE DEVELOPMENT

Номер: US20130178731A1
Автор: Bosl William J.
Принадлежит: CHILDREN'S MEDICAL CENTER CORPORATION

The nonlinear complexity of EEG signals is believed to reflect the scale-free architecture of the neural networks in the brain. Analysis of the complexity and synchronization of EEG signals as described herein provides a quantitative measure for routine monitoring of functional brain development in infants and young children and provide a useful biomarker for detecting functional abnormalities in the brain before the cognitive, behavioral or social manifestations of these brain developments can be observed and measured by standard tests. One or more machine learning algorithms are used to discover relevant patterns in the complexity and synchronization values determined from the EEG data to facilitate risk assessment and/or diagnosis of developmental disorders in infants and young children by predicting cognitive, behavioral and social outcomes of the measured functional brain activity patterns. 1. A method of analyzing electromagnetic data , the method comprising:applying, with at least one processor, at least one nonlinear analysis to the electromagnetic data to generate at least one feature set; andclassifying the at least one feature set using at least one machine learning algorithm.2. The method of claim 1 , further comprising:determining a risk factor for a developmental disorder based, at least in part, on the classified at least one feature set.3. The method of claim 1 , wherein the electromagnetic data comprises electroencephalographic (EEG) data.4. The method of claim 1 , wherein the electromagnetic data comprises magnetoencephalographic (MEG) data.5. The method of claim 3 , further comprising:collecting the EEG data from a child at different developmental timepoints;wherein applying the at least one nonlinear analysis comprises applying the at least one nonlinear analysis to the EEG data collected at each developmental timepoint to generate a plurality of feature sets.6. The method of claim 1 , wherein applying the at least one nonlinear analysis ...

Подробнее
Номер записи: 79
11-07-2013 дата публикации

Functional eeg imager

Номер: US20130178757A1
Автор: Michael Linderman, Valery I. Rupasov
Принадлежит: Norconnect Inc

A system for identifying the connectivity between different brain regions to determine the functional role of brain regions in various human and animal actions.

Подробнее
Номер записи: 80
11-07-2013 дата публикации

Electromyography System

Номер: US20130178758A1
Автор: Kelleher Brian S., Marino James F., Owens Jeffrey H., Stone Corbett W., Vaughn Robin H.
Принадлежит: NUVASIVE, INC.

Methods for determining structural integrity of a bone within the spine of a patient, the bone having a first aspect and a second aspect, wherein the second aspect separated from the first aspect by a width and located adjacent to a spinal nerve. The methods involve (a) applying an electrical stimulus to the first aspect of the bone; (b) electrically monitoring a muscle myotome associated with the spinal nerve to detect if an onset neuro-muscular response occurs in response to the application of the electrical stimulus to the first aspect of the bone; (c) automatically increasing the magnitude of the electrical stimulus to until the onset neuro-muscular response is detected; and (d) communicating to a user via at least one of visual and audible means information representing the magnitude of the electrical stimulus which caused the onset neuro-muscular response. 1. A system for determining structural integrity of a bone within the spine of a patient , the bone having a first aspect and a second aspect , said second aspect separated from said first aspect by a width and located adjacent to a spinal nerve , said system comprising:a stimulator configured to generate an electrical stimulus to be applied to said first aspect of said bone;a monitor configured to electrically monitor a muscle myotome associated with said spinal nerve to detect if a neuro-muscular response greater than a predetermined minimum amplitude occurs in response to the application of said electrical stimulus to said first aspect of said bone;a processor controlled adjuster configured to automatically increase the magnitude of the electrical stimulus generated by said stimulator in a step-by-step staircase fashion until said neuro-muscular response of greater than a predetermined minimum amplitude is detected; anda communicator configured to display, in response to said monitor detecting said neuro-mucular response, the magnitude of the electrical stimulus which caused said neuro-muscular response ...

Подробнее
Номер записи: 81
18-07-2013 дата публикации

Sensor Arrangement for Detecting Muscle Activity for the Control of Technical Equipment

Номер: US20130184539A1
Автор: Klaus Buchenrieder, Stefan Herrmann
Принадлежит: RSL STEEPER GROUP Ltd

A sensor arrangement for detecting muscle activity for the control of technical equipment. When in use the arrangement covers a region of the skin surface of a user, to provide a signal indicative of muscle activity in a limited region for subsequent processing. The arrangement has at least one double-differential myoelectric sensor, together with at least one near-infrared sensor. These are for simultaneous or time-delayed derivation of (a) myoelectric activity and (b) the value of a parameter of the blood (for example the blood oxygen content or the relative quantity of haemoglobin) respectively, in the muscle, the muscles or the tissue under the arrangement.

Подробнее
Номер записи: 82
18-07-2013 дата публикации

Apparatus and method for decoding sensory and cognitive information from brain activity

Номер: US20130184558A1
Автор: Jack L. Gallant, Kendrick Kay, Ryan Prenger, Thomas Naselaris
Принадлежит: UNIVERSITY OF CALIFORNIA

Decoding and reconstructing a subjective perceptual or cognitive experience is described. A first set of brain activity data produced in response to a first brain activity stimulus is acquired from a subject using a brain imaging device and converted into a corresponding set of predicted response values. A second set of brain activity data produced in response to a second brain activity stimulus is acquired from a the subject and decoded using a decoding distribution and the probability the second set of brain activity data corresponds to said predicted response values is determined. The second set of brain activity stimuli is then reconstructed based on the probability of correspondence between the second set of brain activity data and the predicted response values.

Подробнее
Номер записи: 83
18-07-2013 дата публикации

SYSTEM AND METHOD FOR PHASE CONTRAST IMAGING WITH IMPROVED EFFICIENCY

Номер: US20130184561A1
Автор: Edelman Robert R., Glielmi Christopher, Koktzoglou Ioannis, Offerman Erik J.
Принадлежит:

A system and method is provided for magnetic resonance angiography (MRA) that includes performing a pulse sequence using the MRI system, the pulse sequence including a phase-based flow encoding to collect a time-series of image data from the portion of the vasculature of the subject and identifying at least a portion of the time series of image data corresponding to a period of reduced flow through the portion of the vasculature. The portion of the time series of image data is subtracted from the time series of image data to create a time series of images of the portion of the vasculature having background tissue surrounding the portion of the vasculature substantially suppressed. 1. A method acquiring a magnetic resonance angiography (MRA) image of a portion of a vasculature of a subject using a magnetic resonance imaging (MRI) system , the method comprising:performing a pulse sequence using the MRI system, the pulse sequence including a phase-based flow encoding to collect a time-series of image data from the portion of the vasculature of the subject;identifying at least a portion of the time series of image data corresponding to a period of reduced flow through the portion of the vasculature; andsubtracting the portion of the time series of image data from the time series of image data to create a time series of images of the portion of the vasculature having background tissue surrounding the portion of the vasculature substantially suppressed.2. The method of wherein identifying at least a portion of the time series of image data includes selecting at least one image frame to create a subtraction image.3. The method of wherein subtracting includes subtracting the subtraction image from each image frame reconstructed from the time series of image data.4. The method of wherein identifying at least a portion of the time series of image data includes selecting multiple image frames and averaging the multiple image frames to create a subtraction image.5. The method ...

Подробнее
Номер записи: 84
18-07-2013 дата публикации

SYSTEMS AND METHODS FOR FILTERING ECG ARTIFACTS

Номер: US20130184600A1
Автор: FREEMAN Gary A., GEHEB Frederick J., Tan Qing
Принадлежит: ZOLL MEDICAL CORPORATION

Systems and methods of processing raw electrocardiogram (ECG) waveform data of a patient into estimated real-time ECG waveform data. The method includes sensing at least one physical non-cardiac influence on the raw ECG waveform data, constructing a time domain computer model of the at least one physical, non-cardiac influence on the raw ECG waveform data, and adaptively filtering the raw ECG waveform data in the time domain using the constructed time domain computer model of the at least one physical non-cardiac influence on the raw ECG waveform data to form the estimated real-time ECG waveform data. The system can include an ECG device for collecting raw ECG waveform data, at least two ECG electrodes positioned on the patient and electrically coupled to the ECG device, and a processor coupled to the ECG device and configured to compute a time domain model of an artifact created by chest compressions. 1. A method of processing raw electrocardiogram (ECG) waveform data of a patient into estimated real-time ECG waveform data , the method comprising:sensing at least one physical non-cardiac influence on the raw ECG waveform data;constructing a time domain computer model of the at least one physical, non-cardiac influence on the raw ECG waveform data; andadaptively filtering the raw ECG waveform data in the time domain using the constructed time domain computer model of the at least one physical non-cardiac influence on the raw ECG waveform data to form the estimated real-time ECG waveform data.2. The method of claim 1 , wherein the at least one physical non-cardiac influence on the raw ECG waveform is caused by repeated chest compressions claim 1 , and wherein constructing a time domain computer model includes collecting several cycles of chest compressions and calculating a chest compression artifact.3. The method of claim 1 , wherein adaptively filtering the raw ECG waveform data includes subtracting the constructed time domain computer model of the at least one ...

Подробнее
Номер записи: 85
25-07-2013 дата публикации

SENSOR DEVICE FOR ELECTRICAL IMPEDANCE TOMOGRAPHY IMAGING, ELECTRICAL IMPEDANCE TOMOGRAPHY IMAGING INSTRUMENT AND ELECTRICAL IMPEDANCE TOMOGRAPHY METHOD

Номер: US20130190577A1
Автор: Brunner Josef X., Gaggero Pascal Olivier, Robitaille Nicolas
Принадлежит: SWISSTOM AG

A sensor device for EIT imaging comprises an electrode array for measuring an impedance distribution, with at least one sensor for determining spatial orientation of the electrode array coupled to the electrode array. An EIT imaging instrument is connectable to a sensor for determining spatial orientation of a test person, and optionally in addition connectable to a sensor for gathering information on electrical and/or acoustic activity and/or a sensor for gathering information on dilation. A computing device is connected or integrated for adjusting impedance data based on spatial data, which spatial data describe the spatial orientation of a test subject. An EIT imaging method for measuring an impedance distribution and adjusting said measured impedance distribution comprises measuring impedance distribution by using an impedance distribution measuring device comprising an electrode array, and transforming the measured impedance distribution into EIT images. 1. A sensor device for EIT imaging comprising:an electrode array for measuring an impedance distribution, andat least one sensor for determining a spatial orientation of a test person coupled to the electrode array.2. The sensor device of claim 1 , wherein the at least one sensor for determining the spatial orientation determines said spatial orientation with respect to the direction of a gravity vector.3. The sensor device of claim 1 , wherein the at least one sensor for determining the spatial orientation comprises a three-dimensional acceleration sensor.4. The sensor device of claim 1 , wherein a plurality of electrodes of the electrode array are arranged on a belt-like structure.5. The sensor device of claim 1 , further comprising at least one sensor for gathering information on electrical activity coupled to the electrode array.6. The sensor device of claim 5 , wherein the at least one sensor for gathering information on electrical activity comprises an electro-cardiography sensor.7. The sensor device of ...

Подробнее
Номер записи: 86
25-07-2013 дата публикации

Multi-Terminal Nanoelectrode Array

Номер: US20130190586A1
Автор: Akingba A. George, Chen Peng-Sheng, Mahmood Aamer
Принадлежит: Indiana University Research & Technology Corporati

An electrode for monitoring nerve activity has been developed. The electrode includes an array of electrically conductive projections extending from a surface of an electrical contact that enable the electrical contact to be connected directly to the nerve. 1. An electrode comprising:a first electrical contact having at least one electrically conductive projection extending from a surface of the first electrical contact, the at least one electrically conductive projection being configured to engage tissue proximate to at least one nerve to enable the first electrical contact to electrically contact the nerve directly and form an electrically conductive path between the nerve and the electrical contact; anda first electrical lead electrically connected to the first electrical contact to enable signals from the nerve to be received.2. The electrode of further comprising:a second electrical contact having a second electrically conductive projection extending from a surface of the second electrical contact, the second electrically conductive projection being configured to engage the tissue proximate to the at least one nerve to enable the second electrical contact to electrically contact the nerve directly and form an electrically conductive path between the nerve and the second electrical contact, the first electrical contact and the second electrical contact being electrically isolated from one another; anda second electrical lead electrically connected to the second electrical contact to enable an electrical path to be formed from the first electrical lead to the second electrical lead through the first electrical contact, the first electrically conductive projection, the nerve, the second electrical conductive projection, and the second electrical contact.3. The electrode of wherein each electrical contact includes a plurality of electrically conductive projections.4. The electrode of wherein the first electrical contact claim 2 , the first electrically conductive ...

Подробнее
Номер записи: 87
25-07-2013 дата публикации

Implantable Medical Devices Using Heuristic Filtering in Cardiac Event Detection

Номер: US20130190634A1
Автор: Phillips James W.
Принадлежит: Cameron Health, Inc.

Methods for performing cardiac signal analysis in an implanted medical device, and devices configured to perform illustrative methods of cardiac signal analysis. A cardiac signal is captured by an implanted device using implanted electrodes and, during at least certain conditions, the cardiac signal undergoes heuristic filtering. In some embodiments, heuristic filtering is achieved by modifying a signal or value that is used as an indicator of received signal amplitude. In an illustrative example, the heuristic filtering includes periodically incrementing or decrementing the signal or value toward a desired quiescent point, where the heuristic filter period is significantly longer than the sampling period for the signal itself. In another illustrative example, the heuristic filter frequency can be adjusted dynamically to keep the signal average near the desired quiescent point. 1. A method of cardiac signal analysis in an implantable cardiac device system , the implantable device system comprising a plurality of electrodes adapted for implantation in a patient , the method comprising:sensing a signal with from the electrodes; andapplying a dynamic heuristic filter on the sensed signal to maintain a signal baseline;wherein the dynamic heuristic filter is configured to operate by:at a predefined interval, calculating an average distance to a desired quiescent point for the sensed signal, and adjusting a sensing characteristic to reduce the average distance; if the average distance is greater than a first threshold, reducing the predetermined interval if the predetermined interval is not at a preset minimum;', 'if the average distance is less than a second threshold, increasing the predetermined interval if the predetermined interval is not at a preset maximum; or', 'else not adjusting the predetermined interval., 'in addition, analyzing the average distance and performing one of the following2. The method of claim 1 , wherein the dynamic heuristic filter also operates ...

Подробнее
Номер записи: 88
25-07-2013 дата публикации

OPTIMIZATION OF LV AND RV LEAD PLACEMENT BASED ON ELECTRICAL DELAYS

Номер: US20130190636A1
Автор: Ding Jiang, Herrmann Keith L., McCabe Aaron R., Shome Shibaji, Thakur Pramodsingh Hirasingh, Yu Yinghong
Принадлежит:

A system comprises a cardiac signal sensing and a processing circuit. The cardiac signal sensing circuit senses a first cardiac signal segment that includes a QRS complex and a second cardiac signal segment that includes a fiducial indicative of local ventricular activation. The processor circuit includes a site activation timer circuit configured to determine a time duration between a fiducial of the QRS complex of the first cardiac signal segment and the fiducial of the second cardiac signal segment. The processor circuit is configured to generate, using the determined time duration, an indication of optimality of placement of one or more electrodes for delivering therapy and provide the indication to at least one of a user or process. 1. A system comprising: sense a first cardiac signal segment that includes a QRS complex; and', 'sense a second cardiac signal segment that includes a fiducial indicative of local ventricular activation at one or more electrodes of the first cardiac lead; and, 'a cardiac signal sensing circuit connectable to a first cardiac lead and configured to 'a site activation timer circuit configured to determine a time duration between a fiducial of the QRS complex of the first cardiac signal segment and the fiducial of the second cardiac signal segment, and', 'a processor circuit communicatively coupled to the cardiac signal sensing circuit, wherein the processor circuit includes generate, using the determined time duration, an indication of optimality of placement of the one or more electrodes of the first cardiac lead for delivering therapy; and', 'provide the indication to at least one of a user or process., 'wherein the processor circuit is configured to2. The system of claim 1 ,wherein the processor circuit includes a QRS complex time duration circuit configured to measure a time duration of the QRS complex, a time interval between a fiducial of the first cardiac signal segment corresponding to an onset the QRS complex and a fiducial of ...

Подробнее
Номер записи: 89
25-07-2013 дата публикации

Motion and noise artifact detection for ecg data

Номер: US20130190638A1
Автор: Jinseok Lee, Ki H. Chon
Принадлежит: Individual

Technologies are provided herein for real-time detection of motion and noise (MN) artifacts in electrocardiogram signals recorded by electrocardiography devices. Specifically, the present disclosure provides techniques for increasing the accuracy of identifying paroxysmal atrial fibrillation (AF) rhythms, which are often measured via such devices. According to aspects of the present disclosure, a method for detecting MN artifacts in an electrocardiogram (ECG) recording includes receiving an ECG segment and decomposing the received ECG segment into a sum of intrinsic mode functions. The intrinsic mode functions associated with MN artifacts present within the ECG segment are then isolated. The method further includes determining randomness and variability characteristic values associated with the isolated intrinsic mode functions and comparing the randomness and variability characteristic values to threshold randomness and variability characteristic values. If the randomness and variability characteristic values exceed the threshold characteristic values, the ECG signal is determined to include MN artifacts.

Подробнее
Номер записи: 90
25-07-2013 дата публикации

ACQUIRING NERVE ACTIVITY FROM CAROTID BODY AND/OR SINUS

Номер: US20130190645A1
Автор: Farazi Taraneh Ghaffari, WENZEL Brian J.
Принадлежит: PACESETTER, INC.

An exemplary includes acquiring an electroneurogram of the right carotid sinus nerve or the left carotid sinus nerve, analyzing the electroneurogram for at least one of chemosensory information and barosensory information and calling for one or more therapeutic actions based at least in part on the analyzing. Therapeutic actions may aim to treat conditions such as sleep apnea, an increase in metabolic demand, hypoglycemia, hypertension, renal failure, and congestive heart failure. Other exemplary methods, devices, systems, etc., are also disclosed. 1. A method for diagnosing an increase in metabolic demand comprising:acquiring an electroneurogram of carotid sinus nerve activity;analyzing the electroneurogram for at least one member of the group consisting of a decrease in ventilation rate, an increase in blood carbon dioxide concentration, a decrease in blood oxygen concentration and a decrease in blood glucose concentration; andbased at least in part on the analyzing, determining if metabolic demand increased.2. The method of further comprising claim 1 , if metabolic demand increased claim 1 , delivering a therapy to increase heart rate.3. A method for diagnosing hypoglycemia comprising:acquiring an electroneurogram of carotid sinus nerve activity;analyzing the electroneurogram for at least one member of the group consisting of a decrease in blood glucose concentration and a decrease in blood pH; andbased at least in part on the analyzing, determining if hypoglycemia exists.4. The method of further comprising claim 3 , if hypoglycemia exists claim 3 , issuing an alert.5. The method of further comprising claim 3 , if hypoglycemia exists claim 3 , delivering a therapy to increase sympathetic tone.6. A method for diagnosing hypertension comprising:acquiring an electroneurogram of carotid sinus nerve activity;analyzing the electroneurogram for at least a change in blood pressure; andbased at least in part on the analyzing, determining if hypertension exists.7. The ...

Подробнее
Номер записи: 91
01-08-2013 дата публикации

NEURAL MONITORING METHODS AND SYSTEMS FOR TREATING UPPER AIRWAY DISORDERS

Номер: US20130197321A1
Автор: Wilson Willard
Принадлежит: NEUROSTREAM TECHNOLOGIES G.P.

Methods and systems for monitoring, preventing and/or treating upper airway disorders such as apnea, dysphagia, reflux and/or snoring are described. The methods and systems monitor the upper airway disorders by processing one or more neural signals obtained from one or more upper airway afferents. Upper airway disorders are prevented and/or treated by delivering one or more stimulations to one or more reflex-related afferents, efferents, muscles, and sensory receptors to manipulate the threshold and/or trigger an upper airway reflex including, but not limited to a swallow reflex and/or a negative-pressure reflex. 1. A method for monitoring a condition in a subject , the method comprising:obtaining one or more neural signals from one or more upper airway afferents of the subject;processing each of the one or more neural signals to obtain at least one neural activity profile, each neural activity profile characterized by at least one of: a neural signal timing, a neural signal amplitude, a neural signal phase, a neural signal position, a neural signal conduction velocity, and any combination thereof;comparing each of the at least one neural activity profiles to one or more activity criteria to associate each neural activity profile with an associated activity type chosen from a respiratory activity type, a deglutition activity type, a vibration activity type, a reflux activity type, and any combination thereof; a respiratory state comprising respiratory timing, respiratory amplitude, respiratory phase, respiratory location, and any combination thereof;', 'a deglutition state comprising solid contact, fluid contact, contact velocity, contact timing, contact amplitude, contact pressure, contact texture, contact temperature, a presence of a unswallowed bolus, and any combination thereof;', 'a vibration state comprising vibration timing, vibration amplitude, vibration phase, vibration location, vibration pattern, and any combination thereof; and', 'a reflux state ...

Подробнее
Номер записи: 92
01-08-2013 дата публикации

PATIENT MONITORING APPLIANCE

Номер: US20130197322A1
Автор: Tran Bao
Принадлежит:

A wireless system for a person includes a wearable appliance monitoring one or more body parameters; a plurality of wireless nodes in communication with the wearable appliance; and a remote computer coupled to the wireless nodes to provide information to an authorized remote user. 1. A wireless system for a person , comprising:a wearable appliance monitoring one or more body parameters;a plurality of wireless nodes in communication with the wearable appliance; anda remote computer coupled to the wireless nodes to provide information to an authorized remote user.2. The system of claim 1 , comprising an accelerometer to detect a dangerous condition and to generate a warning when the dangerous condition is detected.3. The system of claim 1 , wherein the appliance is wirelessly coupled to a hospital monitoring equipment.4. The system of claim 1 , comprising one of: EKG detector claim 1 , ECG detector claim 1 , electromagnetic detector claim 1 , ultrasonic detector claim 1 , optical detector claim 1 , a Hidden Markov Model (HMM) recognizer claim 1 , a dynamic time warp (DTW) recognizer claim 1 , a neural network claim 1 , a fuzzy logic engine.5. The system of claim 1 , wherein the appliance monitors patient movement.6. The system of claim 1 , comprising a positioning system from an 802.X station to provide location information.7. The system of claim 1 , comprising a call center coupled to the appliance to provide a human response.8. The system of claim 1 , comprising a web server coupled to the wireless nodes to provide information to an authorized remote user.9. The system of claim 1 , comprising a heart disease recognizer to detect stroke symptom or heart attack symptom.10. The system of claim 1 , comprising code to store and analyze patient information.11. The system of claim 1 , comprising code to store medicine taking habits claim 1 , eating and drinking habits claim 1 , sleeping habits claim 1 , or excise habits.12. The system of claim 1 , wherein the wireless ...

Подробнее
Номер записи: 93
01-08-2013 дата публикации

METHOD OF MONITORING DEPTH OF ANESTHESIA AND APPARATUS FOR SAME

Номер: US20130197339A1
Автор: BARDAKJIAN Berj L., KANG Eunji Ellen
Принадлежит: NEUROCHIP CORPORATION

A method of monitoring depth of anesthesia comprises generating differential EEG signals from EEG signals acquired by electrode pairs during an anesthesia protocol, processing the differential EEG signals to determine at least one signal feature and monitoring changes in the at least one signal feature to determine depth of anesthesia. The at least one signal feature comprises at least one of normalized power of the differential EEG signals acquired from at least one of the electrode pairs, and wavelet bicoherence between the differential EEG signals acquired from at least two of the electrode pairs. 1. A method of monitoring depth of anesthesia comprising:generating differential EEG signals from EEG signals acquired by electrode pairs during an anesthesia protocol;processing said differential EEG signals to determine at least one signal feature; andmonitoring changes in said at least one signal feature to determine depth of anesthesia, wherein said at least one signal feature comprises at least one of normalized power of said differential EEG signals acquired from at least one of said electrode pairs, and wavelet bicoherence between said differential EEG signals acquired from at least two of said electrode pairs.2. The method of claim 1 , wherein the wavelet bicoherence is calculated between 5 to 18 Hz and 10 to 40 Hz frequency ranges of said differential EEG signals.3. The method of claim 1 , wherein the normalized power is calculated within a 4 to 8 Hz frequency range of said differential EEG signals.4. The method of claim 1 , further comprising:calculating a required dosage value of anesthesia based on said monitoring.5. The method of claim 4 , further comprising delivering a controllable quantity of anesthesia to a patient based on said calculated required dosage value.6. The method of claim 1 , further comprising delivering a controllable quantity of anesthesia to a patient based on a calculated required dosage value.7. The method of claim 2 , wherein the ...

Подробнее
Номер записи: 94
01-08-2013 дата публикации

Active implantable medical device comprising means for the diagnosis of heart failure

Номер: US20130197378A1
Автор: Jérôme Dumont, Lionel Giorgis
Принадлежит: SORIN CRM SAS

Methods, devices, and processor-readable storage media are provided for the diagnosis of heart failure. A method in this context includes collecting, using an implantable device, reference episodes, the reference episodes comprising, at least one of: electrical activity signals of a myocardium; myocardium hemodynamic activity signals, or indicators reflecting variation of physical parameters, variation of activity, and variation of hemodynamic phases between phases of effort and phases of recovery; generating an in-suspicion model-cycle and an off-suspicion model-cycle based on the reference episodes; and determining whether to generate an early heart failure alert, based on a difference between the in-suspicion model-cycle and the off-suspicion model-cycle.

Подробнее
Номер записи: 95
01-08-2013 дата публикации

PROCESSING OF PERIODIC PHYSIOLOGICAL SIGNALS

Номер: US20130197379A1
Автор: BUSSA Nagaraju, Kudavelly Srinivas Rao, Vepa Jithendra
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Signal processing devices normally filter the signal to reduce noise. Any filtering is likely to eliminate useful components of the signal too. A device for and method of signal processing is disclosed, wherein intrinsically clean signal cycles are selected for reproduction so that the processed signal retains components of all frequencies. A system that uses the disclosed device and the method for processing periodic physiological signals is also disclosed. 1. A signal processing device for processing a periodic physiological signal of a subject , the device comprising:a cycle detection unit for detecting a cycle of the signal;an analysis unit for determining a value of a characteristic of the cycle;a selection unit for discarding or storing the cycle based on the determined value; anda concatenating unit for concatenating the stored cycle for generating a concatenated signal for outputting for a user.2. The device of wherein the physiological signal is representative of the heartbeats of a subject.3. The device of wherein the physiological signal is representative of the sound of the heartbeats of a subject.4. The device of wherein the cycle detection unit is configured for detecting a cycle based on peaks in the signal.5. The device of wherein the cycle detection unit is for detecting a cycle based on an electrocardiogram signal of the subject.6. The device of wherein the analysis unites is for determining at least one of a Signal to Noise Ratio claim 1 , the energy of at least a selected part of the cycle claim 1 , the ratio of the energy of the selected part of the cycle and the energy of the cycle claim 1 , and a time duration of the cycle.7. The device of wherein the analysis unit is for determining the time duration of the cycle based on the electrocardiogram signal.8. The device of wherein the selection unit is for storing cycles having the determined value meeting one or more criteria.9. The device of wherein the selection unit is for storing cycles ...

Подробнее
Номер записи: 96
01-08-2013 дата публикации

AUTOMATIC SELECTION OF ELECTRODE VECTORS FOR ASSESSING RISK OF HEART FAILURE DECOMPENSATION EVENTS

Номер: US20130197381A1
Автор: Charlton Sandra B., Sims James J.
Принадлежит: Medtronic, Inc.

An implantable medical device (IMD) is implanted in a patient. The IMD uses a plurality of electrode vectors to generate intrathoracic impedance measurements. The intrathoracic impedance measurements can be indicative of amounts of intrathoracic fluid in the patient. An accumulation of intrathoracic fluid may indicate that the patient is at an increased risk of experiencing a heart failure event in the near future. The IMD performs a vector selection operation on a recurring basis. When the IMD performs the vector selection operation, the IMD uses impedance measurements to select one of the electrode vectors. The IMD can perform a risk assessment operation on another recurring basis. During performance of the risk assessment operation, the IMD uses impedance measurements of the selected electrode vector and/or other patient characteristics stored within the IMD to determine whether the patient is at an increased risk of experiencing a heart failure event. 1. A method for determining a risk of a patient experiencing a heart failure decompensation event in the near future , the method comprising:using, by a medical device implanted in the patient, a plurality of electrode vectors to generate a plurality of intrathoracic impedance measurements, each of the electrode vectors being a different combination of electrodes;performing, by the medical device, a vector selection operation on a first recurring basis, wherein each time the medical device performs the vector selection operation, the medical device selects a given electrode vector from among the plurality of electrode vectors, the intrathoracic impedance measurements generated using the given electrode vector being at a current time likely to be more reliable than the intrathoracic impedance measurements generated using other ones of the electrode vectors for determining the risk; andperforming, by the medical device, a risk assessment operation on a second recurring basis, wherein each time the medical device ...

Подробнее
Номер записи: 97
08-08-2013 дата публикации

METHOD AND SYSTEM FOR IDENTIFYING A LOCATION FOR NERVE STIMULATION

Номер: US20130204097A1
Автор: Christopherson Mark A., Ni Quan, Rondoni John
Принадлежит: INSPIRE MEDICAL SYSTEMS

A system and method for identifying a stimulation location on a nerve is disclosed. The system includes an image-based navigation interface used to facilitate advancing a stimulation element within a patient body toward a target nerve stimulation site. Using the system one determines, separately for each potential target nerve stimulation site, a neuromuscular response of muscles produced upon applying a stimulation signal at the respective separate potential target stimulation sites. The image-based navigation interface is configured to display a graphic identification of which muscles were activated for each respective potential target nerve stimulation site upon applying the stimulation signal. 191-. (canceled)92. A system for placing a stimulation element , the system comprising: a stimulation engine configured to apply an electrical stimulation signal to a patient body portion via a stimulation element; and', 'a muscle response module configured to determine a response of a muscle to application of the stimulation signal;, 'a neuromuscular response evaluation module includinga probe interface including an array of ports;an array of sensor probes, each removably connectable to a respective one of the ports and removably attachable to a body portion corresponding to the muscle, the sensor probe configured to sense the muscle response; and an image display module configured to display at least one image of the patient body portion; and', 'a muscle identifier module configured to visually identify, superimposed on the at least one image, which muscles were activated for each respective application of the stimulation signal., 'a graphical user interface including93. The system of claim 92 , wherein the muscle response module comprises: an electromyography circuitry configured to determine the muscle response via electromyography; and', 'a compound muscle action potential module configured to determine the muscle response via observing a compound muscle action ...

Подробнее
Номер записи: 98
08-08-2013 дата публикации

PATIENT SUPPORTING DEVICE, TREATMENT APPARATUS WITH A PATIENT SUPPORTING DEVICE AND CORRESPONDING METHOD FOR CONTROLLING AND/OR REGULATING A MEDICAL TREATMENT DEVICE

Номер: US20130204098A1
Автор: Chamney Paul, MOISSL Ulrich, Wabel Peter, Wieskotten Sebastian
Принадлежит: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

The subject matter is a patient supporting device for supporting a patient during a medical treatment, in particular a dialysis treatment, and a treatment apparatus with such a patient supporting device, and a corresponding method for controlling and/or regulating a medical treatment device, in particular a dialysis device, using such a patient supporting device. 1. Patient supporting device for supporting a patient [ ["a device for coupling a measurement signal into the patient's body and", "a device for coupling an electrical measurement value thereby generated in the patient's body out of the patient's body,"], 'wherein this apparatus comprises'}, 'wherein via this interface the data correlated with the electrical measurement value can be transmitted to the medical treatment device, by means of which the medical treatment device can be controlled and/or regulated.', 'and an interface for connecting to a medical treatment device,'}], "with an apparatus for carrying out a bioimpedance measurement on a patient's body,"}2. Patient supporting device according to claim 1 , characterized in thatthe medical treatment device is a dialysis device.3. Patient supporting device according to claim 1 , characterized in thatthe apparatus for carrying out a bioimpedance measurement comprises a device for determining the patient's weight.4. Patient supporting device according to claim 1 , characterized in that the apparatus for carrying out a bioimpedance measurement comprises at least two electrodes for contacting the patient's body for coupling the measurement signal into the patient's body (=coupling-in electrodes) claim 1 , preferably by impressing a measurement current into the patient's body claim 1 , andat least two electrodes for contacting the patient's body for coupling the electrical measurement value generated by the measurement signal in the patient's body out of the patient's body (=coupling-out electrodes), preferably by capturing a change in potential generated by ...

Подробнее
Номер записи: 99
08-08-2013 дата публикации

WIRELESS ELECTRODE ARRANGEMENT AND METHOD FOR PATIENT MONITORING VIA ELECTROCARDIOGRAPHY

Номер: US20130204100A1
Автор: Acquista Angelo Joseph
Принадлежит: Wireless Live D/B/A Peerbridge Health

A system including a plurality of wireless sensors for monitoring one or more parameters of a subject is provided. The wireless sensors can be attachable to or implantable in the subject and form a network. The sensors can include a sensing component configured to detect a signal corresponding to at least one condition of the subject. The sensors further can include a communication component configured to wirelessly transmit the detected signal to at least another of the plurality of wireless sensors, and wirelessly receive a signal transmitted from at least one of the remaining sensors in the network. 1. A system for monitoring one or more hemodynamic parameters of a subject , comprising: a sensing component configured to detect a signal corresponding to at least one hemodynamic condition of the subject;', wirelessly transmit the detected signal to at least one of the plurality of wireless sensors, and', 'wirelessly receive a signal transmitted from at least one of the remaining sensors in the network., 'a communication component configured to], 'a plurality of wireless sensors attachable to or implantable in the subject and forming a network, each sensor comprising2. The system of claim 1 , wherein the network is a mesh network.3. The system of claim 1 , wherein the hemodynamic parameters include one or more of pulse oximetry claim 1 , oxygen saturation claim 1 , oxyhemoglobin saturation claim 1 , blood glucose level claim 1 , blood pressure claim 1 , blood velocity claim 1 , blood flow rate claim 1 , respiratory rate claim 1 , pulse rate claim 1 , COlevel claim 1 , drug concentration claim 1 , blood protein concentration claim 1 , heart rate claim 1 , heart rhythm claim 1 , heart rate variability claim 1 , organic or inorganic substance concentration claim 1 , cardiac activity claim 1 , cardiac output claim 1 , pH levels claim 1 , pathogens and galvanic skin response.4. The system of claim 1 , wherein each of the plurality of wireless sensors further comprises:a ...

Подробнее
Номер записи: 100