СПОСОБЫ И СИСТЕМЫ ДЛЯ ПРЕДОСТАВЛЕНИЯ КОМБИНАЦИИ МЕДИАДАННЫХ И МЕТАДАННЫХ

Изобретение относится к средствам предоставления комбинированных медиаданных и метаданных. Техническим результатом является повышение эффективности представления видеоданных с метаданными, характеризующими процессы в видео объектах. В способе получают последовательность (23) изображений, захватываемых видеокамерой (5); извлекают сигнал (24) из последовательности (23) изображений, характеризующий локальные временные изменения в интенсивности света, цвете, несущий информацию биометрического сигнала живого объекта; применяют метод сжатия видео к данным изображений, предоставляют сжатые видеоданные (37) с метаданными (34) для того, чтобы характеризовать биологический процесс в живом объекте, представленном на части изображений. 6 н. и 5 з.п. ф-лы, 5 ил.

ЛОКАЛЬНОЕ ИЗМЕРЕНИЕ ФИЗИЧЕСКИХ ПАРАМЕТРОВ

... 1. Система для определения точки овуляции особи женского пола, содержащая ! устройство регистратора данных, содержащее ! первый датчик температуры для измерения первой температуры особи женского пола; ! хранилище данных для сохранения одного или более первых измерений температуры в качестве первого набора физиологических данных; ! управляющую логику, выполненную с возможностью сохранять представления первых измерений температуры в хранилище данных; ! передатчик, выполненный с возможностью передавать, по меньшей мере, некоторые из сохраненных данных; ! устройство считывателя данных, содержащее ! приемщик, выполненный с возможностью принимать, по меньшей мере, некоторые из сохраненных данных из устройства регистратора данных; и ! процессор данных, имеющий средство ввода, выполненное с возможностью принимать, по меньшей мере, один другой набор физиологических данных; ! при этом процессор данных выполнен с возможностью комбинировать первые данные по температуре из устройства считывателя данных ...

СИСТЕМА И СПОСОБ ОБМЕНА ИНФОРМАЦИЕЙ О РАБОЧЕМ ЦИКЛЕ В БЕСПРОВОДНЫХ СЕТЯХ

... 1. Беспроводное медицинское устройство (12), содержащее:по меньшей мере одно из датчика (14, 18, 22), который контролирует физиологические данные пациента, и привода (26), который доставляет терапию пациенту;беспроводной приемопередатчик (16, 20, 24, 26), который передает и/или принимает информационные пакеты, связанные по меньшей мере с одним из контролируемых физиологических данных и доставленной терапии, причем беспроводной приемопередатчик (16, 20, 24, 26) имеет ограничение по рабочему циклу;модуль (50) рабочего цикла, определяющий параметры рабочего цикла беспроводного приемопередатчика (16, 20, 24, 26) в соответствии с ограничением по рабочему циклу;модуль (60) связи, управляющий приемопередатчиком (16, 20, 24, 26), чтобы широковещательно передавать по меньшей мере один параметр рабочего цикла, когда передается информационный пакет или когда подтверждается прием информационного пакета от соседнего беспроводного медицинского устройства (12).2. Беспроводное медицинское устройство (12 ...

Verfahren und Gerät zur automatischen Bestimmung des Doppler-Winkels bei der Ultraschallabbildung

Apparatus and method for body characterisation

A body characterising system comprises a computing device 10, an optical imaging device 756 to capture one or more images, and a scale estimation means; the computing device comprises image processing means to identify the image of the user within the background of the one or more captured images, and the computing device is operable to estimate the scale of the image of the user from the scale estimation means, and to generate data descriptive of the user's body dependent upon to the identified image of the user and the estimated scale of the identified image of the user. The body data may be used with a networked server for selecting goods such as clothes and furniture suitable for the body data.

Diagnostic method and apparatus

Monitoring devices and methods

Monitoring devices and monitoring technology are disclosed for a number of applications. A monitoring device that attaches to a measurement site includes at least one of an optical sensor, a temperature sensor, or first and second electrical contact sensors. A monitoring device or a smart garment can be powered by one or more bio-batteries that is each formed by electrodes in contact with the user's body (e.g., skin) or an animal. Various method and algorithms can be used to process signals received from the optical sensor, a temperature sensor, and/or first and second electrical contact sensors. The signals received from the optical sensor, a temperature sensor, and/or first and second electrical contact sensors can be transmitted to a host device. An application program on a host device can process the signals to compute one or more physiological parameters, waveform data, trend data, and/or one or more reports.

MEDICAL SYSTEM OF THE TYPE OF CAP

DIAGNOSTIC SYSTEM FOR SKIN CONDITIONS AND BEAUTY CONSULTING SYSTEM

WIRELESS PATIENT CONTROL INSTRUMENT

PORTABLE RECORDER FOR THE ADMISSION AND TRANSMISSION MULTI-CANAL ELECTROCARDIOGRAM

DEVICE AND PROCEDURE FOR MEASURING AND PROCESSING PHYSIOLOGICAL SIGNALS

PROCEDURE AND EQUIPMENT FOR THE AUTOMATIC PURSUIT OF BLOOD VESSELS DURING ULTRASONIC IMAGE REPRESENTATION

SIGNAL DEMODULATION PROCEDURE AND - PLANT IN A PULSOXIMETRIESYSTEM

DIAGNOSE UNIT

APPARATUS FOR MONITORING STORING AND TRANSMITTING DETECTED PHYSIOLOGICAL INFORMATION

Wireless patient monitoring system

Method and system for detecting white matter neural injury and predicting neurological outcome particularly for preterm infants

AMBULATORY MONITORING SYSTEM WITH REAL TIME ANALYSIS AND TELEPHONE TRANSMISSION

Wireless ECG system

TELEHEALTH SYSTEM AND METHOD

Close proximity communication device and methods

Methods and apparatus for providing close proximity detection in medical systems are disclosed.

Compressed storage of data in cardiac pacemakers

A system and method for providing a packet-based electronic stethoscope

A method and system for near real-time analysis and display of electrocardiographic signals

APPARATUS FOR MONITORING STORING AND TRANSMITTING DETECTED PHYSIOLOGICAL INFORMATION

ROTARY VARIABLE RESISTOR

A rotary variable resistor includes a variable resistor body mounted to a console panel, a rotor shaft protruding outward from the variable resistor body, and a control knob coupled to an outer end of the rotor shaft. A single plate-shaped stopper is projectingly provided, along a rotational direction of the rotor shaft, on a front face of the variable resistor body from which the rotor shaft protrudes. First and second restricting portions are provided on the control knob side-by-side along the rotational direction of the rotor shaft to alternately abut against the stopper in defining an actual rotational angle of the rotor shaft.

SYSTEM FOR PROVIDING SHORT-TERM EVENT DATA AND LONG- TERM TREND DATA

APPARATUS FOR MONITORING AND STORING UTILIZING A DATA PROCESSOR

III. Apparatus for monitoring and storing heart activity signals is disclosed as including a data processor illustratively in the form of a digital microprocessor. The monitoring and storing apparatus comprises a memory comprising first and second pluralities of storage locations, a circuit operating in a real time frame for sampling at a regular rate the patient's heart activity and for storing such sample signals in corresponding locations of said first plurality, and the data processor for processing the signals stored in the first plurality and for storing the processed signals in selected locations of said second plurality. The storage of the signals in the second plurality is performed in a second computer time frame and at a rate faster than the real time sampling rate. A sampling clock provides a sampling clock signal to the sampling circuit whereby the samples of the patient's heart activity are taken. A second computer clock provides computer clock signals to at least a portion ...

CONTINUOUS ELECTROCARDIOGRAM MONITORING METHOD AND SYSTEM FOR CARDIAC PATIENTS

A system which is capable of allowing an attending physician to continuously monitor the electrocardiogram(ECG) signals produced by a cardiac patient. The signals, generated by the patient, are first recorded in real time over a predetermined time period established by the physician. At the conclusion of the predetermined time period a monitoring station is automatically alerted by telephone and commences receiving the patient's real time ECG signals directly. The recorded ECG signals are then transmitted in a compressed time fashion to the monitoring station simultaneously with the real time ECG signals. The monitoring station receives the compressed time and the real time transmitted signals and following analysis thereof transmits a report of selected portions of the ECG to the physician. Upon instructions from the physician, the monitoring station either returns the recording apparatus to its normal operational status for a predetermined time period, or continues to receive and analyze ...

IMPLANTABLE MEDICAL DEVICE FOR TRACKING PATIENT FUNCTIONAL STATUS

An implantable medical device (71a, 71g, 71c) determines activity levels over a set of time periods, preferably on the order of seconds, minutes and hours and a display (82) is enabled for days or weeks at recorded activity levels over a range of dates. This enables physician review of patient functional status. Additional physiologic data can be recorded along with the activity data, and this too may be reported out from the implanted device to a medical communications system for alarm purposes, titrating drugs or other monitoring tasks.

SIGNAL QUALITY IN A MULTIPLEXING SYSTEM BY ACTIVELY DISCONNECTING UNUSED CONNECTIONS

An electronic device includes a multiplexer (MUX), a switching array and logic circuitry. The MUX includes multiple input ports and an output port, and is configured to receive, via the input ports, multiple input signals, and to output, via the output port, a selected signal among the input signals. The switching array is coupled to the input ports of the MUX and is configured to receive the input signals and to connect or disconnect between each input signal and a respective input port. The logic circuitry is electrically coupled to the switching array and to the MUX, and is configured to control the switching array to connect at least the selected signal that the MUX is outputting, and to disconnect all the input signals other than the at least selected signal.

SYSTEM AND METHOD FOR COMPRESSING HIGH FIDELITY MOTION DATA FOR TRANSMISSION OVER A LIMITED BANDWIDTH NETWORK

A system, method, and apparatus for compressing and transmitting motion data. The method comprises receiving high fidelity motion data from a motion sensing device, the high fidelity motion data including a plurality of motion data samples; transmitting the high fidelity motion data to a server; compressing the high fidelity motion data, wherein compressing the high fidelity motion data comprises identifying a subset of the motion data samples and generating a value representing the summary of activity based on the subset of the motion data samples; and transmitting the compressed high fidelity motion data to a server.

PHYSICIAN RELATED SELECTIVE DATA COMPRESSION

An apparatus includes a network interface and a processor. The network interface is configured to communicate over a communication network. The processor is configured to receive (i) data, including a medical parameter acquired as a function of time, and (ii) a selection of one or more time intervals of interest within the time period. The processor is further configured to compress a first portion of the data, which is within the selected time intervals, at a first resolution, and compress a second portion of the data, which is outside the selected time intervals, at a second resolution, which is coarser than the first resolution. The processor is additionally configured to transmit the compressed first and second portions of the data, via the network interface, over the communication network.

SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH

A patient monitoring system may determine one or more reference points of a physiological signal. The system may select one or more fiducial points on the physiological signal relative to the reference points. The one or more fiducial points may be selected by selecting a point spaced by a time interval relative to one of the reference points. The time interval may be a predetermined constant, or the time interval may depend on physiological information. The system may generate a fiducial signal based on the selected fiducial points, calculate physiological information such as a respiration rate based on the selected fiducial points, or both.

PHYSIOLOGICAL SIGNAL DENOISING

Physiological signals are denoised. In accordance with an example embodiment, a denoised physiological signal is generated from an input signal including a desired physiological signal and noise. The input signal is decomposed from a first domain into subcomponents in a second domain. Target subcomponents of the input signal that are associated with the desired physiological signal are identified, based upon the spatial distribution of the subcomponents. A denoised physiological signal is constructed in the first domain from at least one of the identified target subcomponents.

AMBULATORY PATIENT MONITORING SYSTEM

AMBULATORY PATIENT MONITORING SYSTEM An ambulatory patient monitoring system (100) is provided for measuring and storing predetermined diagnostic parameters of a patient. The monitoring system includes a personal type computer (120) which may be selectively coupled to the portable portion (102) of system (100). Portable portion (102) may include one or more monitoring modules, such as ECG monitoring unit (110) and blood pressure monitoring unit (210). When ECG monitoring unit (110) and blood pressure monitoring unit (210) are disposed in side-by-side relationship and with respective optical interfaces (50, 254) in optical alignment, the two units operate in concert. ECG monitoring unit (110) supplies an R-wave gating signal to blood pressure monitoring unit (210) for establishing a window in which the receipt of a Korotkoff sound is expected. Additionally, the ECG unit (110) may trigger the blood pressure unit (210) to take a reading responsive to unit (110) identifying a predetermined ...

METHOD AND APPARATUS FOR PERFORMING MAPPING-TYPE ANALYSIS INCLUDING USE OF LIMITED ELECTRODE SETS

METHOD AND APPARATUS FOR PERFORMING MAPPING-TYPE ANALYSIS INCLUDING USE OF LIMITED ELECTRODE SETS A system (103 is disclosed that includes a monitor (16) for use in performing 12-lead electrocardiographic (ECG) and body surface mapping (BSM) analyses on a patient (12) with a single ten-electrode cable set (14). The monitor receives nine leads of data from the electrode cable set and initially preprocesses it to simplify further analysis. Then the data is transformed to produce a spatial distributionrelative to the patient's chest, representative of the data that would be collectible with a 192-electrode set. Feature extraction techniques are also described for use in evaluating transformed, as well as conventional, BSM data with respect to clinically evaluated populations. In that regard, features of interest are extracted from the data and statistically analyzed to detect select cardiac conditions.

System and Method for Measuring Acoustic Reflectance

SYSTEM AND METHOD FOR COMPRESSING DIGITIZED SIGNALS IN IMPLANTABLE AND BATTERY POWERED DEVICES

A system and method for more efficient data compression is provided, being particularly applicable to use in battery powered devices where there is a premium on minimizing the steps required and the amount of memory that must be dedicated to the task. The invention utilizes the technique of determining a delta or differe nce between each successive sample of the signal and the prior sample; examining the delta signals for a block comprising a predetermined number of such delta signals; determining the largest absolute delta value; determining the number of bits req uired to store such largest delta; and then storing both the determined number of bits an d each delta value which is encoded with such determined number of bits. The block size is chosen to correspond to the type of signals being processed, and for typical med ical applications is selected as a size within the range of 5-12 samples. The compres sed data can be efficiently transmitted, such as from an implanted medical device ...

MONITORING DEVICE FOR MONITORING SIGNALS EMANATING FROM AT LEAST ONE INDIVIDUAL.

Rotary variable resistor

Cryosurgical instrument for treating large volume of tissue

Disclosed is a cryosurgical instrument that is selectively positioned in a patient tissue by rotation. The instrument includes: a manipulation section that permits a user to rotate the instrument; a cryogen supply portion; and a positioning section having a sharp tip at an end and a helical configuration, the positioning section configured to receive cryogen and to permit the received cryogen to cool the positioning section. The positioning section urges the cryosurgical instrument deeper into the patient when the instrument is rotated in a first direction, via the manipulation section, and urges the cryosurgical instrument outward when the instrument is rotated in a second direction that is opposite the first, via the manipulation section.

超声波诊断设备

... 对已注入造影剂的受检者的扫描平面，超声波发射部件6若干次发射强度能够瓦解造影剂的超声波脉冲。超声波接收部件5从受检者接收基于超声波脉冲的回波信号群，并利用加法器5C，通过回波信号群的相加，产生若干RF数据项。根据所述若干RF数据项，TIC/MTT测量部件25测量时间强度曲线(TIC)，随后根据时间强度曲线，测量血流的平均通过时间(MTT)，以便在显示部件21上显示。 ...

Stressor sensor and stress management system

A stressor detection system (100) comprises sensor means (101) arranged for being attached to a person for obtaining a time-varying signal representing a physical quantity relating to an environment of the person, and processing means (102) for deriving a stressor value from the obtained signal representing a degree to which the environment is inducing stress in the person. The processing means is arranged for deriving an amount of complexity comprised in the signal, and for deriving a higher stressor value for a larger amount of information. The processing means is further arranged for performing a spectral frequency analysis of the signal and for deriving the stressor value also in dependence on the spectral frequency analysis. The sensor means comprises a microphone (105), a camera (104), and a tri-axial accelerometer.

Capsule endoscope system, in-vivo information acquisition device, and capsule endoscope

A capsule endoscope system has an attitude change mechanism (105) for changing the attitude of a bed (104) so as to change the posture, relative to the gravitational direction, of a subject (101) placed on the bed (104). The amount of change in each attitude change of the attitude change mechanism (105) is previously determined according to a preset observation direction in the stomach (111) of the subject (101) performed by a capsule endoscope (103), and a change parameter including the attitude change amount is stored in storage means. Operation of the attitude change mechanism (105) is controlled by using the previously stored change parameter, and this enables the attitude of the bed (104) to be changed so that the posture of the subject (101) is aligned with the direction of observation previously set relative to the capsule endoscope (103).

IMPROVEMENTS RELATING TO the DISPLAY SYSTEMS PER DIAGRAM RECORDER

PROCESS OF PHYSIOLOGICAL DATA COMPRESSION, IN PARTICULAR ACTIVE CARDIAC, IN PARTICULAR FOR a RECORDING HOLTER Of ELECTROCARDIOGRAMS OR ELECTROGRAMMES

DISPLAY SYSTEM Of a SEQUENCE OF DATA AND RELATING TO IT SYSTEM Of ACCELERATION

ENCAPSULATED ENDOSCOPE AND ENCAPSULATED ENDOSCOPE SYSTEM

METHOD AND APPARATUS FOR ARTIFACTS MITIGATION WITH MULTIPLE WIRELESS SENSORS

METHOD AND APPARATUS FOR UNDER-SAMPLED ACQUISITION AND TRANSMISSION OF PHOHTOPLETHYSMOGRAPH (PPG) DATA AND RECONSTRUCTION OF FULL BAND PPG DATA AT THE RECEIVER

DIAGNOSTIC DEVICE USING DATA COMPRESSION

A device, system and method for obtaining in vivo images from within a body lumen, such as the gastrointestinal tract. Figure 1 shows a swallowable capsule (40) for obtaining image data. The swallowable capsule (40) includes an imager (46), a processor (47), and an illumination source (42), suitable for illuminating a body cavity. The apparatus also includes an optical system (50), which may incorporate lenses and filters, for the purpose of focusing light into the imager (46). Images are transmitted, via a transmitter (41) and an antenna (48), and are compressed by the compression module (600), to reduce bandwidth. The transmitter (41) further includes a power source (45), such as silver oxide batteries, lithium batteries, or other electrochemical cells. The transmitter also includes a modulator (70), an amplifier (72), and an impedance matcher (74). The receiver (12) receives compressed image data through an antenna (15), and stores it in a storage unit (16). The receiver is small, and ...

METHOD AND APPARATUS FOR ARTIFACTS MITIGATION WITH MULTIPLE WIRELESS SENSORS

METHOD AND APPARATUS FOR MEASURING BODY IMPEDANCE BASED ON BASEBAND SIGNAL DETECTION

Certain aspects of the present disclosure relate to techniques for measuring body impedance based on baseband signal detection in analog domain. Proposed methods and apparatus are able to measure an impedance of human body based on sub-Nyquist sampling of signals. The proposed techniques can be particularly beneficial for reducing overall sensor power when an actuation signal generates electrical signals corresponding to vital signs in humans.

NOVEL METHODS AND MEANS FOR CLINICAL INVESTIGATIONS

The present invention discloses a method for testing at least one effect of a pharmaceutical substance in a subject, comprising administering a pharmaceutical substance to a subject, measuring with at least one sensor contained within a mobile sensor system, at the subject or in close proximity to said subject, at least one parameter value indicative of a body function of said subject, transmitting at least one sensor system signal associated with the at least one parameter value to a receiver contained within a mobile base unit, said receiver being provided with a means for wireless transmission, and wirelessly transmitting a mobile base unit signal associated with the at least one sensor system signal from said receiver to a back-end system, whereby at least said back-end system correlates the at least one parameter value with and/or displays a representation of the at least one effect of said pharmaceutical substance.

ULTRASONOGRAPHIC DEVICE, OPERATION METHOD THEREOF, AND ULTRASONOGRAM DIAGNOSIS PROGRAM

An ultrasonographic device includes: an ultrasonic probe for transmitting/receiving an ultrasonic wave to/from an examinee; an uniformity calculation unit which calculates a probability density function parameter relating to uniformity of a biological tissue of the examinee according to the probability distribution of amplitude values obtained at a plurality of measurement points in a target region of the ultrasonic signal based on a reflected echo signal measured by the ultrasonic probe; an image generation unit which generates a tissue uniformity image with a gradation obtained according to the calculated parameter; and a display unit which displays the generated tissue uniformity image.

HEALTH MONITORING SYSTEM

A health monitoring system (100) which tracks the state of health of a patient and compiles a chronological health history of the patient uses a multiparametric monitor (108) which periodically and automatically measures and records a plurality of physiological data from sensors in contact with the patient's body. The data collected is not specifically related to a particular medical condition but, instead, provides the information necessary to derive patterns which are characteristic of healthy patients as well as those who are ill. The data collected is periodically uploaded to a database (102) in which it is stored along with similar health histories for other patients. The monitor (108) is preferably self-contained in a chest strap which is located on the patient's torso, and makes use of a controller which controls sampling of the desired data and storage of the data to a local memory device pending uploading to the database. The more voluminous data collected is reduced and compressed ...

WIRELESS ECG SYSTEM

A system for detecting physiological data from a patient and, more particularly, a system for detecting electrocardiograph (ECG) information from a patient and transmitting the information to a central monitoring station via telemetry.

IN-VIVO IMAGING DEVICE PROVIDING DATA COMPRESSION

A device, system and method may enable the obtaining of in vivo images (300) from within body lumens or cavities, such as images of the gastrointestinal (GI) tract, where the data such as mosaic image data may be transmitted or otherwise sent to a receiving system in a compressed format (350).

PHYSIOLOGICAL SIGNAL MONITORING APPARATUS AND METHOD

Un mode de réalisation préféré de la présente invention utilise un dispositif d'EEG portable et portatif qui possède un amplificateur porté par le patient connecté à un ordinateur hôte de façon à lui transmettre les signaux EEG. Lorsque qu'on souhaite déconnecter le patient de cet ordinateur hôte, on peut brancher un dispositif de fonctionnement portable (POD) à l'amplificateur. Lors de la détection de cette déconnexion, un contrôleur achemine de préférence les nouveaux signaux EEG vers une mémoire amovible ou vers une carte périphérique de transmission permettant l'acquisition directe de données. Lors de la détection d'une nouvelle connexion entre l'amplificateur et l'ordinateur hôte, le contrôleur achemine les nouveaux signaux EEG vers cet ordinateur hôte. Ce contrôleur transmet également de préférence les signaux EEG stockés sur la carte périphérique de transmission (le cas échéant) à l'ordinateur hôte. Certains mode de réalisations préférés de l'invention comprennent un appareil d'affichage ...

SYSTEM AND DEVICE FOR MULTI-SCALE ANALYSIS AND REPRESENTATION OF ELECTROCARDIOGRAPHIC DATA

System comprised of a portable medical device and method for registering electrocardiographic (ECG) signals, extracting and representing the most significant parameters at different levels of detail using the color-coded scales which are understandable to a lay person and a medical professional. Low, intermediate and high-resolution scales are defined according to the corresponding software and hardware resources. A low-resolution Scale I represents a small number of primary elements such as intervals between the heart beats, duration of PQ, QRS, and QT-intervals, amplitudes of P-, Q-, R-, S-, and T-waves. This real-time analysis is implemented in a portable device that requires minimum computational resources. The set of primary elements and their search criteria are adjusted for each ECG using intermediate or high-resolution levels. At the intermediate-resolution Scale II, serial changes in each of the said elements are determined using a mathematical decomposition into series of orthogonal ...

LIMITED USE MEDICAL PROBE

La présente invention concerne une sonde médicale (14) à usage limité. La sonde médicale comporte une composante mémoire (26) pour l'établissement d'une valeur d'utilisation, représentative du nombre d'utilisations et/ou de la durée d'utilisation de la sonde médicale (14). La sonde médicale (14) est reliée à un dispositif de contrôle médical (12) qui empêche le fonctionnement des fonctions de contrôle (12) lorsque le nombre d'utilisations ou la durée totale d'utilisation atteint une valeur seuil prédéterminée, évitant ainsi une utilisation abusive de la sonde (14).

IMPROVED GPS RECEIVERS AND GARMENTS CONTAINING GPS RECEIVERS AND METHODS FOR USING THESE GPS RECEIVERS

A GPS receiver having multiple GPS antennas. Also described is a method of tracking employing the GPS receiver and a communication transmitter. Also described is a garment having a GPS receiver and a GPS antenna and a communication antenna and a communication transmitter.

TELEHEALTH SYSTEM AND METHOD

A telehealth system and method is disclosed for assisting an attending physician or other health support personnel in remote monitoring the condition of one or more patients. The system and method monitors the condition of a patient having a disorder, compares the condition with a predetermined profile and warns the attending physician or other support personnel when the patient's condition deteriorates such that it no longer corresponds to the predetermined profile.

Picture taking apparatus and method of controlling same

The camera includes a sensor for sensing the photographer's iris image and registering the image in advance. The iris image is recorded in the image of a subject by a digital MCU at a timing different from that at which the image of the subject is captured. The recording timing is that at which the camera power supply is turned off, that at which a recording medium is ejected from the camera or that at which the iris image to be recorded is changed to the registered iris image of another photographer. The recording of the iris image is achieved by embedding it as a watermark or by appending it to metadata.

Integrated Electrophysiology and Ultrasound Imaging System

An integrated electrophysiology and ultrasound imaging system includes a workstation, electrophysiology processing circuits, a compact ultrasound imaging system having a combination of an isolation circuit, an ultrasound signal generator, and a beam former within a single unit. The integrated workstation provides a single control interface and data display for the electrophysiology and ultrasound imaging subsystems. Integrating the control of electrophysiology and ultrasound imaging equipment within a single workstation reduces clinician workload.

Portable pH data collector

The present invention provides an apparatus for continuously recording physiological data. The invention includes a unique data mapping and compression technique which allows relatively long term data acquisition without compromising the data sampling rate. The present physiological data recorder has application in recording physiological data which is non-periodic and is characterized by "bursts" of rapid activity interspersed among relatively long periods during which there is little or no activity. The invention has specific application in recording pH data in ambulatory patients and comprises a unique data compression means, an automatic calibration means, and a digital or analogue data playback means.

Compressed storage of data in cardiac pacemakers

An implantable medical device for human implant. The device includes a telemetry transmitter and receiver for communicating information from the implanted device to an external programmer or monitor and for receiving commands or other information from an external programmer. The device is provided with one or more sensors and means for monitoring, recording and storing the recordings of physiologic signals after implant. The device is provided with a waveform compression and storage system which stores monitored signals in the form of defined analog voltages maintained within the device, rather than employing more traditional digital storage techniques.

Computerized information collection and processing apparatus

Computerized information acquisition and processing apparatus. In one embodiment, the apparatus includes a video apparatus with image capture and digitization capability, and multiple wireless interfaces for accomplishing various purposes, including e.g., streaming the digitized video data to another device for viewing and/or storage thereon. In one variant, one of the wireless interfaces is a short range passive RFID-based interface which generates replies to interrogation signals, the replies including user-specific information.

Graphics system with programmable real-time sample filtering

A method and computer graphics system capable of super-sampling and performing programmable real-time filtering or convolution are disclosed. In one embodiment, the computer graphics system may comprise a graphics processor, a sample buffer, and a sample-to-pixel calculation unit. The graphics processor may be configured to generate a plurality of samples. The sample buffer, which is coupled to the graphics processor, is configured to store the samples and may be configured to double-buffer at least part of the stored samples. The sample-to-pixel calculation unit is programmable to select a variable number of stored samples from the sample buffer to filter into an output pixel. The sample-to-pixel calculation unit performs the filter process in real-time, and may be programmable to use a number of different filter types in.a single frame. The sample buffer may be super-sampled, and the samples may be positioned according to a regular grid, a perturbed regular grid, or a stochastic grid.

IMAGE PROCESSING APPARATUS AND PULSE ESTIMATION SYSTEM PROVIDED THEREWITH, AND IMAGE PROCESSING METHOD

Image processing apparatus is provided with data compression processing unit that executes data compression processing on an input captured image based on inter-frame prediction; and operation-mode selection unit that is capable of selecting one of a first operation mode for normal imaging and a second operation mode for pulse estimation based on a command from a user. In a case where the second operation mode is selected, data compression processing unit sets an interval between I pictures constituting a compressed image generated by the data compression processing to an interval to be different from that in a case where the first operation mode is selected. 1. An image processing apparatus that acquires an image for estimating a pulse , comprising:a data compression processing unit that executes data compression processing on an input captured image based on inter-frame prediction; andan operation-mode selection unit that is capable of selecting one of a first operation mode for normal imaging and a second operation mode for pulse estimation based on a command of a user,wherein in a case where the second operation mode is selected, the data compression processing unit sets an interval between I pictures constituting a compressed image generated by the data compression processing to an interval to be different from that in a case where the first operation mode is selected.2. The image processing apparatus of claim 1 ,wherein in a case where the second operation mode is selected, the data compression processing unit sets the interval between the I pictures to a greater interval than that of a case where the first operation mode is selected.3. The image processing apparatus of claim 1 ,wherein in a case where the first operation mode is selected, the data compression processing unit constitutes the compressed image with at least the I picture and a P picture, and in a case where the second operation mode is selected, the data compression processing unit constitutes ...

Methods for the diagnosis and treatment of bone disorders

This invention pertains to chemometric methods for the analysis of chemical, biochemical, and biological data, for example, spectral data, for example, nuclear magnetic resonance (NMR) spectra, and their applications, including, e.g., classification, diagnosis, prognosis, etc., especially in the context of bone disorders, e.g., conditions associated with low bone mineral density, e.g., osteoporosis.

Close proximity communication device and methods

Disclosed herein are methods and systems for receiving an encoded data packet, one or more activation commands, and a communication identifier, decoding the received data packet, validating the decoded received data packet, and executing one or more routines associated with the respective one or more activation commands.

Electrode assemblies and electroencephalographic devices, methods and kits

In accordance with at least one aspect of this disclosure, an encephalographic electrode assembly can include a wicking element that has a wick body, one or more long legs extending from the wick body and inserted into the one or more hollow contact probes, and one or more short legs, which are shorter than the long legs, extending from the wick body and inserted into the one or more short reservoir sleeves. The short legs are configured to prevent slide-out of the wicking element from the reservoir body.

Transducer array imaging system

The disclosed embodiments include a method, system, and device for conducting ultrasound interrogation of a medium. The method includes transmitting a non-beamformed or beamformed ultrasound wave into the medium, receiving more than one echoed ultrasound wave from the medium, and converting the received echoed ultrasound wave into digital data. The method may further transmit the digital data. The transmission may be wireless. The system may include a main unit, a remote unit, a locator module, transducer elements, an analog-to-digital converter in communication with the transducer elements, and a transmitter in communication with the analog-to-digital converter. The main unit and the remote unit may be part of an ultrasound imaging system and the remote unit may communicate with the main unit. The locator module may communicate with the remote unit or the main unit. The locator module may identify a location of the remote unit or the main unit.

System for analysis of biological voltage signals

Method of analyzing biological signals, including obtaining a magnetic recording media having an analog biological signal recorded thereon, using digital processing software to digitize the biological signal, displaying the digitized biological signal in analog form on a display, and visually analyzing the biological signal on the display. The biological signal may be an electrocardiogram. Preferably, independent channel enhancement of the dynamic range of the analog biological signal is performed prior to digitizing The displayed biological signal is preferably presented in time compressed form. Digitizing is performed by sampling the biological signal at at least approximately 44,100 Hz per second per channel and quantization of at least 16-bits per sample per channel. The digital processing software is preferably digital audio processing software.

Minimally invasive physiologic parameter recorder and introducer system

An implantable monitoring device includes a flexible lead body that includes at least one sensing element. The device also includes a rigid main body connected to the flexible lead body at an attachment point. The rigid main body is generally centered about a longitudinal axis defined by the flexible lead body when the lead body is unflexed. The device further includes a measurement circuit, which is housed within the rigid main body and electrically coupled to the at least one sensing element of the flexible lead body and at least another sensing element on an outside surface of the rigid main body. The measurement circuit is configured to measure a potential difference between the at least one sensing element of the flexible lead body and the at least another sensing element of the main body.

PHYSIOLOGICAL ACOUSTIC MONITORING SYSTEM

A physiological acoustic monitoring system receives physiological data from an acoustic sensor, down-samples the data to generate raw audio of breathing sounds and compresses the raw audio. The acoustic monitoring system has an acoustic sensor signal responsive to tracheal sounds in a person. An A/D converter is responsive to the sensor signal so as to generate breathing sound data. A decimation filter and mixer down-samples the breathing sound data to raw audio data. A coder/compressor generates compressed audio data from the raw audio data. A decoder/decompressor decodes and decompresses the compressed audio data into decompressed audio data. The decompressed audio data is utilized to generate respiration-related parameters in real-time. The compressed audio data is stored and retrieved so as to generate respiration-related parameters in non-real-time. The real-time and non-real-time parameters are compared to verify matching results across multiple monitors. 1. (canceled)2. A method for simulating physiological sounds of a patient responsive to measurements from one or more sensors attached to the patient , the method comprising:detecting a first portion in an acoustic signal corresponding to a physiological process of inspiration;detecting a second portion in the acoustic signal corresponding to a physiological process of expiration;generating a first sound corresponding to the inspiration process based on the detected first portion;generating a second sound including a different characteristic than the first sound corresponding to the expiration process based on the detected second portion;mixing the first sound and the second sound with a noise sound; andoutput the mixed sound corresponding to physiological sounds of respiration.3. The method of claim 2 , further comprising adding a third sound corresponding to a pulse detected from an optical sensor to the mixed sound claim 2 , wherein the third sound is different than the first sound and the second sound.4. ...

Ultrasonic diagnostic apparatus and ultrasonic diagnostic method

An ultrasonic probe (11) has a plurality of ultrasonic transducers (UTs) (27). Each UT transmits ultrasonic waves and receives echo waves. In a B/A coefficient acquisition mode, every time a transmission of the ultrasonic waves and reception of echo waves takes place, ultrasonic waves for heating are transmitted to heat an object of interest. An HI processor (55) calculates a non-linear B/A coefficient based on a harmonic component of a detection signal from the UT. The HI processor acquires information of changes in the B/A coefficient while the obj ect of interest is heated with the ultrasonic waves for heating. A DSC (53) displays the information of the B/A coefficient together with an ultrasonic image (60) on a monitor (15).

STRESSOR SENSOR AND STRESS MANAGEMENT SYSTEM

Apparatus and method for electrocardiogram data compression

An improved electrocardiac monitoring device is disclosed in which the sampling period utilized to sample the ECG signal is varied dynamically.Specifically, during rapidly varying portions of the ECG signal, the sampling rate is high. As the rate of change of the ECG signal decreases, the sampling rate is slowed so that only the minimum number of samples are taken to accurately reconstruct the analog ECG signal. The sampling period to be used is determined from the relative positions in time between a predetermined portion of the ECG signal and the portion of the ECG signal being sampled. ...

System for aiding remote diagnosis

A system provides visual data to a clinician. The system comprises means for obtaining an image of a site on a patient to be viewed by a clinician, and means for obtaining patient identifying data. Means for storing the image data, together with the data identifying the patient, and means for transmitting the stored image and patient data to a remote site are provided. There is also means for receiving and storing the image and patient data at the remote site for subsequent viewing by the clinician. The image may be a still or video image. A corresponding method of operating such a system is also provided. Such a method may be employed in the detection of cervical cancer.

PHYSIOLOGICAL ACOUSTIC MONITORING SYSTEM

INFORMATION PROCESSING DEVICE AND METHOD, PROGRAM, RECORDING MEDIUM, AND INFORMATION PROCESSING SYSTEM

PROBLEM TO BE SOLVED: To improve editing operability drastically in comparison with the case that editing is performed through a manual operation in the middle of shooting an image of a subject. SOLUTION: A video camera 100 which processes information obtained by shooting an image of a subject and by collecting ambient sound of the subject, includes: an image-and-sound-recording unit 31 that shoots the image of the subject to output image data and collects the ambient sound of the subject to output sound data; a living-body sensor unit 45 that detects living-body emotion of an operator who operates the image-and-sound-recording unit 31 to output emotion data; and an information-processing unit 15 that performs editing processing or the like on the emotion data outputted from the living-body sensor unit 45, the image data of the subject and the sound data, in recording around the subject, outputted from the image-and-sound-recording unit 31 so as to make these data corresponding to each ...

СИСТЕМА И СПОСОБ ОБМЕНА ИНФОРМАЦИЕЙ О РАБОЧЕМ ЦИКЛЕ В БЕСПРОВОДНЫХ СЕТЯХ

Группа изобретений относится к беспроводным медицинским устройствам, в частности к беспроводным сетям датчиков, и может быть использована для контроля физиологических параметров пациента и передачи данных в систему управления. Беспроводное медицинское устройство (12) включает в себя по меньшей мере один датчик (14, 18, 22), контролирующий физиологические данные пациента, и привод (26), доставляющий терапию пациенту. Беспроводной приемопередатчик (16, 20, 24, 28) передает и принимает информационные пакеты, связанные по меньшей мере с одним из контролируемых физиологических данных или доставляемой терапии. Беспроводной приемопередатчик имеет ограничение по рабочему циклу, представляющее собой максимальное время включенной передачи в течение предварительно определенного временного окна. Модуль (50) рабочего цикла определяет параметры рабочего цикла для беспроводного приемопередатчика в соответствии с ограничением по рабочему циклу. Модуль (60) связи управляет приемопередатчиком, чтобы широковещательно ...

СИСТЕМА И СПОСОБ АВТОМАТИЧЕСКОГО ЗАХВАТА И АРХИВИРОВАНИЯ КЛИНИЧЕСКИ ЗНАЧИМЫХ ПОКАЗАТЕЛЕЙ ЖИЗНЕДЕЯТЕЛЬНОСТИ

Изобретение относится к области сбора медицинских данных о показателях жизнедеятельности. Техническим результатом является повышение точности и надежности измерения показателей жизнедеятельности о состоянии здоровья пациента. Система (100) содержит: блок (120) обработки определения значения параметра, выполненный с возможностью приема сигналов физиологических параметров и выделения множества эпизодов в течение длительности по меньшей мере одного физиологического цикла из сигнала колебаний физиологического параметра; блок (130) обработки оценки качества сигнала, выполненный с возможностью приема физиологических сигналов, оценки качества каждого эпизода колебания физиологических сигналов, выделения признаков колебаний у эпизодов колебаний и генерирования индекса качества сигнала, показывающего оцененное качество физиологических сигналов каждого эпизода на основании выделенных признаков колебаний; и блок (140) маркировки колебаний, выполненный с возможностью связывать индексы качества сигнала ...

СИСТЕМА И СПОСОБ АВТОМАТИЧЕСКОГО ЗАХВАТА И АРХИВИРОВАНИЯ КЛИНИЧЕСКИ ЗНАЧИМЫХ ПОКАЗАТЕЛЕЙ ЖИЗНЕДЕЯТЕЛЬНОСТИ

... 1. Система (100) оценки и контроля качества сигнала для непрерывного захвата и архивирования физиологических данных мониторинга для создания сжатой истории показателей жизнедеятельности пациента в динамике, при этом система содержит:блок (120) обработки определения значения параметра, выполненный с возможностью приема сигналов физиологических параметров и генерирования физиологически значимых и надежных данных параметров;блок (130) обработки оценки качества сигнала, выполненный с возможностью приема физиологических сигналов, оценки качества физиологических сигналов и генерирования индексов качества сигнала, показывающих оцененное качество физиологических сигналов; иблок (140) маркировки колебаний, выполненный с возможностью связывать индексы качества сигнала с физиологическими данными.2. Система по п.1, в которой средство (130) обработки оценки качества сигнала содержит по меньшей мере одно из:средство (230) выделения признаков колебаний для выделения эпизодов из сигналов параметров;средство ...

VERFAHREN UND SCHALTUNG ZUR SPEICHERUNG UND BEREIT

Verfahren und Bildrekonstruktionseinrichtung zur Rekonstruktion von Bilddaten

Die Erfindung betrifft ein Verfahren und eine Bildrekonstruktionseinrichtung (20) zur Rekonstruktion von Bilddaten (X) auf Basis von Messdaten (Y) eines bildgebenden Systems (1). Dabei werden aus den Messdaten (Y) zunächst rekonstruierte Start-Bilddaten (X0) in einem iterativen Optimierungsverfahren unter Nutzung eines Rauschregularisierungsterms und eines zusätzlichen Sparsity-Regularisierungsterm optimiert.

KONTINUIERLICHES ELEKTROKARDIOGRAMM- UEBERWACHUNGSVERFAHREN UND ZUGEHOERIGES SYSTEM FUER HERZKRANKE PATIENTEN

VERFAHREN UND VORRICHTUNG ZUR MESSUNG EINER STRÖMUNG UNTER ANWENDUNG VON FREQUENZDISPERSIVEN TECHNIKEN

VERARBEITUNGSSYSTEM VON PHYSIOLOGISCHEN SIGNALEN.

Wireless physiological sensor patches and systems

Wireless physiological patches and systems

METHOD AND APPARATUS FORRECORDING ELECTROCARDIOGRAM INFORMATION

Method and apparatus for measuring the frequency or period of a signal

A method and an apparatus for indicating in real time the occurrence of and measuring the frequency or period of the basic oscillation of a generally periodic unknown signal with statistically distributed spectral components is disclosed. Using an autocorrelation technique, the time interval from the initial peak value to the next successive peak value of the autocorrelation curve is measured and the unknown frequency or period is determined therefrom. A periodically occurring maximum of the next successive peak value is determined, and, on its appearance, a signal is produced, said signal approximating the occurrence in real time of the generally periodic signal.

PATIENT'S VITAL SIGN RECORDING APPARATUS

... 1499516 Recording apparatus AMERICAN OPTICAL CORP 11 Feb 1975 [11 Feb 1974] 5802/75 Headings G1J and G1N(E) Apparatus for recording physiological measurements from a patient, e.g. an electrocardiogram, comprises a looped record carrier 351 (a chart secured round a drum 200, or an endless loop passing round parallel rollers) which is moved continuously past a recording member 300 responsive to signals representing said measurements to trace a record thereof on the record carrier, and means 304, 302 to move the recording member 300 progressively in a direction transverse to the direction of motion of the record carrier, to prevent overlapping of the record trace. This transverse movement may be continuous, so that the trace has a helical base line, or stepwise, once per revolution of the record carrier. In Fig. 3, a rectangular chart 351 is wrapped round a drum 200 and its ends secured in a slot 201 by a clamp 352. A motor 305 rotates the drum via gears 307. A carriage 304 slidable on a rod ...

ELECTROCARDIOGRAPHIC WAVEFORM DISPLAY APPARATUS AND METHOD OF EXPRESSING ELECTROCARDIOGRAPHIC WAVEFORMS

CARDIAC FUNCTION MONITORING SYSTEM AND METHOD FOR USE IN ASSOCIATION WITH CARDIAC PACER APPARATUS

... 1502331 Remote monitoring of the condition of a patient's heart and/or his pacemaker PACEMAKER DIAGNOSTIC CLINIC OF AMERICA Inc 13 May 1975 20092/75 Heading G1N(E) In a system for remotely monitoring the condition of a pacemaker within the patient, the cardiac electrical waveform picked up from electrodes L, G R , R on the patient is processed in such a way that the bandwidth of the pacemaker pulsewidth signal is compressed. This enables the pulsewidth signal and other pacemaker parameter signals to be transmitted through a telephone 33 line by way of a voltage controlled audio oscillator 20 supplying a speaker 32. In the preferred embodiment, Figs. 1-14, (Figs. 2-14 not shown) a patient identification code (in a store 18), an E.C.G. signal, a signal representing the area of the pacemaker pulse, and a signal representing the height of the cardiac pacemaker pulse are transmitted in a particular sequence to the V.C.O. 20 by means of a commutator 4. The commutator 4 is controlled by a "4 Bit ...

Management Method And System For Implementation, Execution, Data Collection, and Data Analysis Of A Structured Collection Procedure Which Runs On A Collection Device

A collection device for performing a structured collection procedure may include a processor that executes program instructions communicably coupled to at least one memory. The processor can initiate a schedule of events of the structured collection procedure upon one or more entry criterions being met and segregate the at least one memory into a primary data store and a secondary data store. The processor can write structured patient data collected in accordance to the schedule of events to the secondary data store. The processor can transform a relevant portion of the structured patient data into an evaluated data object. The processor can generate a data abstraction based in part upon the evaluated data object. The processor can link the primary data store and the secondary data store with the data abstraction.

Methods and systems for developing medical waveforms and training methods

The present technology relates to a medical waveform development system comprising a medical waveform recording system for obtaining recorded medical waveforms. The system further comprises a physiological simulator for accessing recorded medical waveforms and for processing modified medical waveforms. The system also comprises an invasive workbench that allows a user to access the recorded medical waveforms and modified medical waveforms via software applications that are accessible on a computer.

Creating a Personalized Stress Profile Using Renal Doppler Sonography

In particular embodiments, a method includes accessing data streams from a renal Doppler sonograph and one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, or a mood sensor monitoring a person, and generating a stress model of the person based on the data streams.

Continuous Monitoring of Stress Using Accelerometer Data

In particular embodiments, a method includes accessing data streams from an accelerometer and one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, or a mood sensor monitoring a person, analyzing data sets collected from the person when the person is engaged in various activities, and determining a current stress index of the person based on the analysis.

Systems and methods for determining respiration information from a photoplethysmograph

A signal representing physiological information may include information related to respiration. A patient monitoring system may generate a plurality of autocorrelation sequences from the signal and combine the autocorrelation sequences to generate a combined autocorrelation sequence. The combined autocorrelation sequence may be analyzed to identify one or more peaks that may correspond to respiration information. Respiration information such as respiration rate may be determined based on the one or more peaks.

PHYSIOLOGICAL ACOUSTIC MONITORING SYSTEM

A physiological acoustic monitoring system receives physiological data from an acoustic sensor, down-samples the data to generate raw audio of breathing sounds and compresses the raw audio. The acoustic monitoring system has an acoustic sensor signal responsive to tracheal sounds in a person. An A/D converter is responsive to the sensor signal so as to generate breathing sound data. A decimation filter and mixer down-samples the breathing sound data to raw audio data. A coder/compressor generates compressed audio data from the raw audio data. A decoder/decompressor decodes and decompresses the compressed audio data into decompressed audio data. The decompressed audio data is utilized to generate respiration-related parameters in real-time. The compressed audio data is stored and retrieved so as to generate respiration-related parameters in non-real-time. The real-time and non-real-time parameters are compared to verify matching results across multiple monitors. 1. An acoustic monitoring system inputs an acoustic sensor signal responsive to tracheal sounds of a person and generates breath tags and a respiration rate , the breath tags representing the acoustic envelope of the tracheal sounds and the respiration rate representing the inverse period of the acoustic envelope , the breath tags and respiration rate having a sufficiently low bandwidth to share a data channel with other physiological parameters , the acoustic monitor comprising:an acoustic sensor input;an A/D converter that digitizes the sensor input and outputs a digitized sensor signal;a decimation filter and mixer that reduces the data rate of the digitized sensor signal and outputs a digitized raw audio; andan acoustic parameter processor that generates a respiration rate and breath tags in response to the digitized raw audio.2. The acoustic monitoring system according to further comprising a coder/compressor that compresses the digitized raw audio to generate compressed audio data claim 1 , the ...

System and method for exchanging duty-cycle information in wireless networks

A wireless medical device ( 12 ) includes at least one sensor ( 14, 18, 22 ) which monitors physiological data of a patient or an actuator ( 26 ) which delivers therapy to the patient. A wireless transceiver ( 40 ) transmits and receives information packets related to at least one of the monitored physiological data and the delivered therapy. The wireless transceiver ( 40 ) has a duty-cycle limit. The duty-cycle module ( 50 ) determines the duty-cycle parameters for the wireless transceiver ( 40 ) according to the duty-cycle limit. A communication module ( 60 ) controls the transceiver ( 40 ) to broadcast at least one duty-cycle parameter when transmitting an information packet or when acknowledging receiving an information packet from a neighboring wireless medical device.

COMPRESSIVE SAMPLING OF PHYSIOLOGICAL SIGNALS USING TIME-FREQUENCY DICTIONARIES BASED ON MODULATED DISCRETE PROLATE SPHEROIDAL SEQUENCES

A method of sampling and reconstructing an original physiological signal obtained from a subject includes acquiring a number of samples of the original physiological signal, and generating a reconstructed physiological signal using the samples and a time-frequency dictionary, the time-frequency dictionary having bases which are modulated discrete prolate spheroidal sequences. 1. A method of sampling and reconstructing an original physiological signal obtained from a subject , comprising:acquiring a number of samples of the original physiological signal; andgenerating a reconstructed physiological signal using the samples and a time-frequency dictionary, the time-frequency dictionary having bases which are modulated discrete prolate spheroidal sequences.2. The method according to claim 1 , wherein the acquiring the samples comprises sampling the original physiological signal at a sample rate that is less than a Nyquist rate of the original physiological signal.3. The method according to claim 1 , wherein the time-frequency dictionary comprises a number of values claim 1 , wherein the generating the reconstructed physiological signal comprises employing a matching pursuit algorithm using each of the samples and each of the values of the time-frequency dictionary.4. The method according to claim 3 , wherein each of the samples is associated with a respective sampling time claim 3 , wherein each sample has one of the values of the time-frequency dictionary that corresponds thereto that is also associated with the respective sampling time of the sample claim 3 , wherein matching pursuit algorithm is claim 3 , for each of the samples claim 3 , carried out using the one of the values of the time-frequency dictionary corresponding to the sample.5. The method according to claim 4 , wherein each of the sampling times is estimated.6. The method according to claim 5 , wherein each of the sampling times is estimated using an annihilating filter.7. The method according to claim 1 ...

Wireless patient monitoring system

Disclosed embodiments include a wireless portable medical monitoring apparatus that includes (a) a hospital bed or medical stretcher; (b) a plurality of wireless biomedical sensors attached to the hospital bed or medical stretcher; and (c) a communications module configured for wirelessly transmitting jointly compressed biomedical signals. The communication module is configured to transmit signals as a block of coherent data. Additionally, the communication module includes fast-joint coding and decoding, transmission error correction, and information exchange between different layers to optimize network throughput.

Image Processing Device, Method and Non-Transitory Storage Medium

At least one of the common regions in time-sequence images is specified. Then, the time-sequence images are adjusted such that the position of that common region in at least one image among the time-sequence images is adjusted to the position of that common region in a different image. Then, the new adjusted time-sequence images are subjected to video compression processing. 1. An image processing apparatus comprising:a time-series image acquirer configured to acquire time-series images made up of a plurality of raw images generated in a time series;a common region designator configured to designate at least one common region that is commonly included in the time-series images acquired by the time-series image acquirer;a positioning processor configured to adjust the time-series images by bringing a common region that is represented by at least one raw image of the time-series images into positional alignment with a common region that is represented by another raw image; andan image compression processor configured to perform a moving-image compression process on new time-series images adjusted by the positioning processor.2. The image processing apparatus according to claim 1 , wherein the time-series image acquirer acquires claim 1 , as the time-series images claim 1 , a time series of cross-sectional image groups generated by capturing slice images along an axial direction; andthe positioning processor adjusts the time-series images by positioning the common region along the axial direction.3. The image processing apparatus according to claim 2 , wherein the positioning processor adjusts the time-series images by using a position of the common region claim 2 , which is represented by one raw image of the time-series images as a reference claim 2 , and bringing the common regions that are represented by remaining raw images into positional alignment with the reference.4. The image processing apparatus according to claim 2 , wherein the positioning processor ...

PHYSIOLOGICAL ACOUSTIC MONITORING SYSTEM

An acoustic monitoring system has an acoustic front-end, a first signal path from the acoustic front-end directly to an audio transducer and a second signal path from the acoustic front-end to an acoustic data processor via an analog-to-digital converter. The acoustic front-end receives an acoustic sensor signal responsive to body sounds in a person. The audio transducer provides continuous audio of the body sounds. The acoustic data processor provides audio of the body sounds upon user demand. 17.-. (canceled)8. A method of generating synthetic physiological sound responsive to a signal detected by an acoustic sensor attached to a patient , the method comprising:processing, at a patient monitor, a signal from an acoustic sensor responsive to a piezoelectric modulation of the acoustic sensor;detecting envelope features in the processed signal responsive to a periodic physiological process;generating an idealized envelope based on the detected envelope features;comparing the signal with sound signatures corresponding to physiological sounds stored in a first data repository;detecting a physiological event from the processed signal based on the comparison of the signal with the sound signatures; andgenerating a synthetic physiological sound comprising a first sound corresponding to the generated idealized envelope and a second sound corresponding to a portion of the processed signal with the detected physiological event.9. The method of claim 8 , wherein the physiological sounds comprise breathing claim 8 , speech claim 8 , chocking claim 8 , swallow claim 8 , spasms claim 8 , coughing claim 8 , gasping claim 8 , heart claim 8 , and gastrointestinal sounds.10. The method of claim 8 , wherein the idealized envelope is represented as breath tag.11. The method of claim 10 , further comprising transmitting the breath tag over a network in lieu of the processed signal.12. The method of claim 11 , further comprising transmitting the portion of the signal over the network.13 ...

Ambulatory Electrocardiography Monitor Recorder Optimized For Capturing Low Amplitude Cardiac Action Potential Propagation

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally (in the midline) on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and, to a lesser extent, the QRS interval signals indicating ventricular activity in the ECG waveforms. Additionally, the monitor recorder includes an ECG sensing circuit that measures raw cutaneous electrical signals using a driven reference containing power supply noise and system noise to the reference lead, which is critical to preserving the characteristics of low amplitude cardiac action potentials, particularly P-waves. 1. An ambulatory electrocardiography monitor recorder optimized for capturing low amplitude cardiac action potential propagation , comprising:a wearable housing adapted to be coupled to a pair of electrocardiographic electrodes that are fitted for dermal placement along the sternal midline; and a low power microcontroller operable to execute over an extended period under modular micro program control as specified in firmware stored in a program memory unit;', a signal lead operable to sense cardiac electrical potentials dermally through one of the electrocardiographic electrodes;', 'a reference lead operable to sense cardiac electrical potentials dermally through the other of the electrocardiographic electrodes; and', 'a reference generator comprising a pair of resistors configured to inject a driven reference containing power supply noise and system noise to the reference lead, the signal lead further comprising a coupling ...

SYSTEM AND METHOD OF REMOTE ECG MONITORING, REMOTE DISEASE SCREENING, AND EARLY-WARNING SYSTEM BASED ON WAVELET ANALYSIS

The invention relates to the system and method of remote ECG monitoring, remote disease screening, and early-warning system based on wavelet analysis. The system includes a wireless ECG signal acquisition device, a mobile terminal, and a cloud storage platform. The wireless ECG signal acquisition device worn on the user's chest is used to collect ECG signals anywhere and anytime. The method includes transmitting the ECG signals to the mobile terminal using the wavelet analysis algorithm, analyzing and processing the received ECG signal, and uploading the processed ECG signals to the cloud storage platform. The cloud storage platform stores users' personal information and ECG signals. According to the ECG features detection with support vector machine learning algorithm for heart diseases diagnosis and features classification, the system gives feedback report and proposal, and transmits them to the mobile terminal. 1. A system of remote ECG monitoring , remote disease screening , and early-warning based on wavelet analysis , comprising:a wireless ECG signal acquisition device;a mobile terminal; anda cloud storage platform;whereinthe wireless ECG signal acquisition device is configured to be worn on a user's chest;the wireless ECG signal acquisition device is configured to collect ECG signal in real time and transmit the ECG signal to the mobile terminal;the mobile terminal is configured to analyze and process the received ECG signal using a wavelet analysis algorithm;the mobile terminal is configured to upload the processed ECG signal to the cloud storage platform;the cloud storage platform is configured to store the user's personal information, the ECG signal, waveform features of the ECG signal obtained by analysis, and a type of heart disease;the system is configured to determine whether the user's heart is healthy or what kind of disease the user is suffering from according to the waveform features of the ECG signal using a support vector machine based heart ...

METHOD OF COMPRESSING IMAGE IN DIGITAL PATHOLOGY SYSTEM

Disclosed is an image compression method of a digital pathology system. The image compression method is a method of compressing digital slide images having first to nth original plane images (n is a natural number greater than or equal to 2). The image compression method includes selecting a block having an optimal focal point as an optimal block from each set of blocks positioned at identical positions of the first to nth original plane images; forming one plane image as a virtual optimal plane image by combining only the optimal blocks; generating block descriptors for forming the first to nth original plane images based on the virtual optimal plane image; generating first to nth predictive plane images from the virtual optimal plane image such that the first to nth predictive plane images are the least out of focus by using location information for the blocks and the block descriptors; generating first to nth differential plane images, the first differential plane image corresponding to a difference between the first original plane image and the first predictive plane image and the nth differential plane image corresponding to a difference between the nth original plane image and the nth predictive plane image; and compressing the first to nth differential plane images. 1. An image compression method for a digital pathology system , which is a method of compressing digital slide images having first to nth original plane images (n is a natural number greater than or equal to 2) , the image compression method comprising:selecting a block having an optimal focal point as an optimal block from each set of blocks positioned at identical positions of the first to nth original plane images;forming one plane image as a virtual optimal plane image by combining only the optimal blocks;generating block descriptors for forming the first to nth original plane images based on the virtual optimal plane image;generating first to nth predictive plane images from the virtual ...

VEHICULAR ELECTROCARDIOGRAM MEASUREMENT DEVICE AND METHOD

According to an embodiment of the present disclosure, a vehicular electrocardiogram measurement device includes an electrocardiographic sensor which is installed in a seat of a vehicle and obtains a patch signal, and a controller, which, on the basis of the patch signal obtained by the electrocardiographic sensor, generates a first request signal for requesting contact of a user's body with a patch of the electrocardiographic sensor. At least one among an autonomous vehicle, a user terminal, or a server according to embodiments of the present disclosure may be combined or associated with an artificial intelligence module, an unmanned aerial vehicle (UAV), a robot, an augmented reality (AR) device, and a device related to virtual reality (VR) or 5G service. 1. A vehicular electrocardiogram measurement device comprising:an electrocardiographic sensor which is installed in a seat of a vehicle and obtains a patch signal; anda controller configured to, on the basis of the patch signal obtained by the electrocardiographic sensor, generate a first request signal for requesting contact of a user's body with a patch of the electrocardiographic sensor if a first condition is not satisfied, generate a second request signal for requesting to take off clothes if a second condition is not satisfied, generate a third request signal for requesting to stop moving if a third condition is not satisfied, and determine a stress level on the basis of the patch signal as the first condition, the second condition, and the third condition are satisfied,wherein the first condition is that an absolute value of a voltage of the patch signal exceeds a predetermined first voltage value,the second condition is that a peak-to-peak voltage value of the patch signal exceeds a predetermined second voltage value, andthe third condition is that the peak-to-peak voltage value of the patch signal is measured periodically.2. The vehicular electrocardiogram measurement device of claim 1 ,wherein the ...

DYNAMIC DIGITAL IMAGE COMPRESSION BASED ON DIGITAL IMAGE CHARACTERISTICS

Systems and techniques are disclosed for dynamically and automatically selecting an appropriate compression technique and/or compression parameters for digital images in order to reduce or prevent loss of significant information that may negatively impact the utility or usefulness of the digital images. For example, based on various image characteristics associated with a digital image, the system may dynamically compress the image using particular compression techniques and/or by adjusting compression parameters, to maintain significant information of the image. The system may select compression techniques and/or compression parameters based on one or more compression rules, which may be associated with image characteristics, patient characteristics, medical history, etc. Further, the system may, based on the one or more compression rules, compress the image to a maximum degree of compression while maintaining the significant information of the image. 1. A system comprising:a non-transitory computer readable storage medium having software instructions embodied thereon; and compress a digital image using each of a plurality of compression algorithms, in parallel, to generate a set of compressed digital images that are compressed at a plurality of different compression levels;', 'for each of the compressed digital images of the set, determine a respective amount of errors based on comparison of the respective compressed digital images to the digital image; and', 'determine a first compressed digital image of the set that is compressed at a highest compression level of the plurality of compression levels that also has an amount of errors that satisfies a threshold., 'one or more processors configured to execute the software instructions to cause the one or more processors to2. The system of claim 1 , wherein the one or more processors are configured to execute the software instructions to cause the one or more processors to further:determine characteristic associated ...

Methods and systems for characterizing tissue of a subject utilizing a machine learning

Methods and systems for characterizing tissue of a subject include acquiring and receiving data for a plurality of time series of fluorescence images, identifying one or more attributes of the data relevant to a clinical characterization of the tissue, and categorizing the data into clusters based on the attributes such that the data in the same cluster are more similar to each other than the data in different clusters, wherein the clusters characterize the tissue. The methods and systems further include receiving data for a subject time series of fluorescence images, associating a respective cluster with each of a plurality of subregions in the subject time series of fluorescence images, and generating a subject spatial map based on the clusters for the plurality of subregions in the subject time series of fluorescence images. The generated spatial maps may then be used as input for tissue diagnostics using supervised machine learning.

APPARATUS AND METHOD FOR DATA COMPRESSION IN A WEARABLE DEVICE

Described is an apparatus and method for data compression using compressive sensing in a wearable device. Described is also a machine-readable storage media having instruction stored thereon, that when executed, cause one or more processors to perform an operation comprising: receive an input signal from a sensor; convert the input signal to a digital stream; and symmetrically pad on either ends of the digital stream with a portion of the digital stream to form a padded digital stream. 126-. (canceled)27. Machine-readable storage media having instruction stored thereon , that when executed , cause one or more processors to perform an operation comprising:receive an input signal from a sensor;convert the input signal to a digital stream; andsymmetrically pad on either ends of the digital stream with a portion of the digital stream to form a padded digital stream.28. The machine-readable storage media of having further instruction stored thereon claim 27 , that when executed claim 27 , cause the one or more processors to perform a further operation comprising:select a part of the digital stream;transmit the selected part of the digital stream to another device; andreceive one or more configuration parameters from the other device in response to the transmitted selected part of the digital stream.29. The machine-readable storage media of having further instruction stored thereon claim 28 , that when executed claim 28 , cause the one or more processors to perform a further operation comprising:prior to symmetrically padding on either ends of the digital stream, compute a number of elements to be padded using the one or more configuration parameters.30. The machine-readable storage media of claim 29 , wherein number of elements determines the portion of the digital stream.31. The machine-readable storage media of claim 28 , wherein at least one of the one or more configuration parameters is dynamically received from the other device.32. The machine-readable storage media ...

SUBCUTANEOUS ELECTROCARDIOGRAPHY MONITOR CONFIGURED FOR SELF-OPTIMIZING ECG DATA COMPRESSION

A subcutaneous electrocardiography monitor configured for self-optimizing ECG data compression is provided. ECG waveform characteristics are rarely identical in patients with cardiac disease making this innovation crucial for the long-term data storage and analysis of complex cardiac rhythm disorders. The monitor includes a memory and a micro-controller operable to execute under a micro-programmable control and configured to: obtain a series of electrode voltage values; select one or more of a plurality of compression algorithms for compressing the electrode voltage series; apply one or more of the selected compression algorithms to the electrode voltage series; evaluate a degree of compression of the electrode voltage series achieved using the application of the selected algorithms; apply one or more of the compression algorithms to the compressed electrode voltage series upon the degree of compression not meeting a predefined threshold; and store the compressed electrode voltage series within the memory. 1. A subcutaneous electrocardiography monitor configured for self-optimizing ECG data compression , comprising:an implantable housing for implantation within a patient;a pair of electrocardiographic (ECG) sensing electrodes; an ECG front end circuit interfaced to a microcontroller and configured to sense electrocardiographic signals via the pair of the ECG sensing electrodes;', 'a memory;', obtain a series of electrode voltage values based on the sensed electrocardiographic signals;', 'detect one or more portions of the electrode voltage series that comprise noise;', 'represent the noise portions of the series with at least one symbol within a compression of the electrode voltage series;', 'select one or more of a plurality of compression algorithms for compressing non-noise portions of the electrode voltage series;', 'apply one or more of the selected compression algorithms to non-noise portions of the electrode voltage series;', 'evaluate a degree of compression ...

Injectable physiological monitoring system

An injectable device for use in a subcutaneous physiological monitoring of a patient includes a body, a plurality of sensors, and a monitoring unit. The plurality of sensors provide an indication of at least one physiological event of a patient, wherein the plurality of sensors includes two or more electrodes in contact with tissue of the patient. The monitoring unit is located within the body and is coupled to the plurality of sensors and configured to monitor a physiologic signal of the patient using the electrodes, wherein the physiologic signal includes an impedance signal related to hydration of tissue of the patient and wherein the monitoring unit is further configured to, based at least in part on the impedance signal measured from the patient, detect an impending cardiac decompensation of the patient.

APPARATUS AND METHOD FOR BIOMETRIC INFORMATION DETECTION

An apparatus and method for biometric information detection are provided. The apparatus includes a housing, a biometric sensor disposed on a surface of the housing, and configured to detect biometric information of a subject, and an impedance measurer including biometric electrode pairs disposed around the biometric sensor, the impedance measurer being configured to measure bio-impedances of the subject using the biometric electrode pairs. The apparatus further includes a processor configured to determine a bio-impedance ratio, based on the measured bio-impedances, and determine validity of the detected biometric information, based on the determined bio-impedance ratio. 1. An apparatus for biometric information detection , the apparatus comprising:a housing;a biometric sensor disposed on a surface of the housing, and configured to detect biometric information of a subject;an impedance measurer comprising biometric electrode pairs disposed around the biometric sensor, the biometric electrode pairs being configured to measure bio-impedances of the subject using the biometric electrode pairs; anda processor configured to determine a bio-impedance ratio, based on the measured bio-impedances, and determine validity of the detected biometric information, based on the determined bio-impedance ratio.2. The apparatus of claim 1 , wherein the processor is further configured to determine that the detected biometric information is valid in response to a size of the determined bio-impedance ratio or a sequential change in the determined bio-impedance ratio being within a predetermined range.3. The apparatus of claim 1 , wherein the biometric sensor is further configured to:estimate the biometric information by applying a predetermined correlation model to a biometric signal; andupdate the predetermined correlation model, based on the estimated biometric information in response to a sequential change in the determined bio-impedance ratio reaching a predetermined range.4. The ...

Method and circuit for storing and providing historical physiological data

Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor.

SYSTEM AND METHOD FOR COMPRESSING AND SEGMENTING ACTIVITY DATA IN REAL-TIME

There is provided a system, method and device for dynamically compressing an actigraphy signal at a source device. The method comprises receiving the actigraphy signal related to a user's physical activity from an accelerometer sensor on the source device and for compressing the actigraphy signal by determining regions of interest in the actigraphy signal to capture, said compressing performed by: computing a rapid change factor value indicating a drastic change in movement activity in said actigraphy signal, said rapid change factor computed based on determining a spurious free dynamic range of a second order difference signal of the actigraphy signal and subsequently determining the step size of the actigraphy signal, the step size indicating the interval with which the actigraphy signal instantaneously changes its value from one sample to another; automatically scanning the second order difference signal to locate samples in the second order difference signal having a value greater than the rapid change factor value, said located samples defining primary segment boundaries; -extracting frames of the encoded actigraphy signal between two consecutive primary segment boundaries and discarding outlying regions of the encoded actigraphy signal; and —outputting only the extracted frames representing a compressed actigraphy signal to an external computing device for subsequent processing. 2. The device of claim 1 , wherein the m-bit encoder is a 3-bit encoder with m=3.3. The device of claim 1 , wherein the spurious free dynamic range is the difference in decibels claim 1 , between an amplitude of fundamental value of the second order difference signal and an amplitude of largest peak in the second order difference signal.4. The device of claim 3 , wherein the received actigraphy signal is tri-axial and of the form: S= claim 3 , and vector compounding is performed on the actigraphy signal prior to said encoding of actigraphy signal by determining ...

Ecg signal lossless compression system and method for same

An ECG signal lossless compression system includes: a signal difference value generating module and a compression module. The signal difference value generating module performs an adaptive linear prediction encoding on an ECG signal, so as to generate a plurality of signal difference values corresponding to each datum of the ECG signal;he compression module divides the signal difference values into a plurality of groups and performs an adaptive linear lossless compression encoding on each group, so as to generate a plurality of window compression streams, wherein each group corresponds to a bit reference index configured to be a compression encoding parameter of the adaptive linear lossless compression encoding.

DIAGNOSTIC METHOD AND SYSTEM

Self-diagnosis of diseases is highly desired and very popular nowadays. The present application provides system, methodology, and the like for providing real-time detection of a medical condition. 1. A system , comprising:one or more biometric sensors;one or more processors coupled to the one or more biometric sensors; andone or more storage devices storing instructions that are operable, when executed by the one or more processors, to cause the one or more processors to perform operations comprising:obtaining data from the one or more biometric sensors, the data being captured by the one or more biometric sensors during a prior temporal interval;establishing a weighting factor for each of the one or more biometric sensors;calculating a control value based on the obtained data;determining a value of an event indicator based on the obtained data, established weighting factor, and the calculated control value,accessing a database that correlates corresponding event indicator values with candidate events;based on the accessed database, establishing a match between the determined event indicator value and a corresponding one of the candidate events; andperforming one or more operations in accordance with the established correspondence.2. The system of claim 1 , wherein the candidate events comprises occurrences of at least one of a medical condition or a disease within a human population.3. The system of claim 1 , wherein the performing comprises:generating a signal indicative of the established correspondence, the generated signal being indicative of the match between the determined event indicator value and the corresponding candidate event; andtransmitting the generated signal to an additional computing system, the signal instructing the additional computing system to modify a corresponding operational state and present at least one of a graphical, aural, or tactile alert.4. The system of claim 1 , wherein the performing comprises:generating a graphical ...

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

A medical data processing apparatus according to one embodiment includes processing circuitry. The processing circuitry obtains a compressed channel of data generated by compressing a plurality of first medical channels of data defined by first domain representation and respectively corresponding to a plurality of components, via an intermediate channel of data defined by second domain representation. The processing circuitry decodes the compressed channel of data to a second medical channel of data defined by the first domain representation based on a conversion process from the plurality of first medical channels of data to the compressed dataset. 1. A medical data processing apparatus comprising:processing circuitry configured to:obtain a compressed channel of data generated by compressing a plurality of first medical channels of data defined by first domain representation and respectively corresponding to a plurality of components, via an intermediate channel of data defined by second domain representation; anddecode the compressed channel of data to a second medical channel of data defined by the first domain representation based on a conversion process from the plurality of first medical channels of data to the compressed channel of data.2. The medical data processing apparatus according to wherein:the first domain representation includes a dimension of a spatial domain and a dimension of a component domain; andthe second domain representation includes a dimension of a spatial frequency domain.3. The medical data processing apparatus according to claim 1 , wherein the processing circuitry decodes the compressed channel of data to the second medical channel of data with respect to all of the components or a selected component of the components.4. The medical data processing apparatus according to claim 1 , wherein the processing circuitry generates a decoded intermediate channel of data defined by the second domain representation by performing entropy decoding ...

PATIENT SENSOR DATA EXCHANGE SYSTEMS AND METHODS

A system for patient data exchange is provided and includes a plurality of sensors monitoring a patient according to a default sensor configuration, and a patient data exchange engine that receives a request comprising one or more parameters, identifies at least one applicable sensor from the plurality of sensors based on the one or more parameters, and reconfigures the at least one applicable sensor from the default sensor configuration to a different sensor configuration in accordance with the one or more parameters to generate applicable sensor data responsive to the request. In specific embodiments, the patient data exchange engine further computes a monetary value for the generated sensor data based at least on an attribute of the patient and an attribute of the sensor data. 1. A patient data exchange system , comprising:a plurality of sensors monitoring a patient according to a default sensor configuration; anda patient data exchange engine that receives a request comprising one or more parameters, identifies at least one applicable sensor from the plurality of sensors based on the one or more parameters, and reconfigures the at least one applicable sensor from the default sensor configuration to a different sensor configuration in accordance with the one or more parameters to generate applicable sensor data responsive to the request.2. The patient data exchange system of claim 1 , wherein the default sensor configuration comprises a time-synchronization with another of the plurality of sensors.3. The patient data exchange system of claim 1 , wherein the at least one applicable sensor generates the corresponding sensor data at a first sampling rate according to the default sensor configuration claim 1 , wherein the patient data exchange further reconfigures the at least one applicable sensor to have a second sampling rate according to the one or more parameters.4. The patient data exchange system of claim 1 , wherein the patient data exchange engine further ...

IN-SITU COMPENSATION OF ACOUSTIC MEASUREMENTS

The present disclosure relates to a method for estimating one or more compensation parameters from impedance measurements of an acoustic load. The method comprises a series of steps including providing a probe assembly measurement setup and the disclosure also relates to a system to perform impedance measurements. The compensation parameters are estimated through a minimization process, preferably minimizing an error estimate of a first real and second imaginary part of the reflectance. The resulting compensation parameters are used to restore causality of the reflectance and accordingly provide more accurate impedance measurements. 1. A method to compensate for a first error arising in an impedance measure of an acoustic load due to evanescent modes causing inaccuracies in a reflectance measure of said acoustic load and a second error arising in said reflectance measure due to said acoustic load having an unknown characteristic impedance (Z) , said method comprising the steps of:positioning a probe assembly in said acoustic load, said probe assembly comprising a speaker and a microphone, and said acoustic load having a first open end and a second at least partly closed end, wherein a distance between said first open end and said second at least partly closed end defines a length of said acoustic load;generating from said speaker an acoustic output signal emitted into said acoustic load from said first open end and configured to propagate along said length of said acoustic load,recording with said microphone of said acoustic probe an input signal caused by an incident part and a reflected part of said output signal propagating along said acoustic load, said incident part of said output signal comprising a plane wave part and an evanescent mode part, the method furthermore comprising the steps of{'sub': m', 'm, 'i) calculating an acoustic impedance (Z) based on a relation between said input signal and said output signal, wherein said acoustic impedance (Z) includes ...

WEARABLE ELECTROCARDIOGRAM MEASUREMENT DEVICE AND METHOD FOR COMPRESSING AN ELECTROCARDIOGRAM

A wearable electrocardiogram measurement device and a method for compressing an electrocardiogram are disclosed. A heart detection unit detects a heart activity status of a human body to obtain electrocardiogram data. A processor of a portable host proceeds with bandwidth decomposition and quantization by using quantization scales to obtain quantized results. An integer part of each quantized result is set as a quantized datum. A decimal portion of each quantized result is set as a truncated error datum. Each quantization scale is multiplied by a corresponding truncated error datum to obtain a product. If a distortion value obtained by adding the products fulfills a distortion default value range, the quantized data are encoded to obtain compressed electrocardiogram data for storage in a data storage unit of the host. If the distortion value does not fulfill the distortion default value range, an adjustment step is repeated. 1. A wearable electrocardiogram measurement device comprising:a heart detection unit adapted to be mounted to a skin of a human body for detecting an activity status of a heart of the human body to obtain electrocardiogram data; anda host portable by a user, with the host including a data storage unit and a processor, with the data storage unit configured to store compressed electrocardiogram data, with the processor electrically connected to the heart detection unit and the data storage unit, and with first, second, and third electrocardiogram compressing programs and a distortion default value being written into the processor,with the first electrocardiogram compressing program executable by the processor to proceed with bandwidth decomposition of sensed data obtained from the heart detection unit, obtaining a plurality of bandwidth data,with the second electrocardiogram compressing program executable by the processor to proceed with quantization of the plurality of bandwidth data respectively by using a plurality of quantization scales to ...

SYSTEM AND METHOD FOR QRS COMPLEX DETECTION IN COMPRESSIVELY SENSED ELECTROCARDIOGRAM DATA

Electrocardiogram (ECG) data is compressible at high compression ratios using suitable compressive sensing techniques. Methods of detecting QRS complexes in an ECG signal may comprise receiving compressively-sensed measurements of an ECG signal; constructing an estimate of the ECG signal from the received compressively-sensed measurements, and detecting QRS complexes in the estimate of the ECG signal. QRS complexes may be detected by computing the first-order difference of the estimate of the ECG signal and processing the first-order difference of the estimate of the ECG signal to locate one or more significant natural blocks, each indicating a QRS complex in the ECG signal. QRS complexes may also be detected by using a conventional QRS detection algorithm on the estimate of the ECG signal. Also disclosed are related systems for detecting QRS complexes and for compressively sensing ECG signals. 1. A method of detecting QRS complexes in an ECG signal , the method comprising:receiving compressively-sensed measurements of the ECG signal;constructing an estimate of the ECG signal from the received compressively-sensed measurements;computing a first-order difference of the estimate of the ECG signal; andprocessing the first-order difference of the estimate of the ECG signal to locate one or more significant natural blocks, each indicating a QRS complex in the ECG signal.2. The method of wherein constructing the estimate of the ECG signal comprises enforcing a block-sparse structure on the first-order difference of the estimate of the ECG signal.3. The method of wherein a block-sparse structure is enforced on the first-order difference of the estimate of the ECG signal by applying the l-RLS algorithm to the compressively-sensed measurements of the ECG signal.4. The method of claim 1 , wherein said constructing the estimate of the ECG signal comprises:{'sub': '2/p', 'sup': 'd', 'for each block size of a plurality of selected block sizes, generating a reconstructed signal ...

R-R INTERVAL MEASUREMENT USING MULTI-RATE ECG PROCESSING

A method and system for R-R interval measurement of a user are disclosed. In a first aspect, the method comprises detecting an electrocardiogram (ECG) signal of the user. The method includes performing QRS peak detection on the ECG signal to obtain a low resolution peak and searching near the low resolution peak for a high resolution peak. The method includes calculating the R-R interval measurement based upon the high resolution peak. In a second aspect, a wireless sensor device comprises a processor and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to carry out the steps of the method. 1. A method for R-R interval measurement of a user , the method comprising:detecting an electrocardiogram (ECG) signal of the user;performing QRS peak detection on the ECG signal to obtain a low resolution peak;searching proximate the low resolution peak for a high resolution peak by scanning a range of ECG sample points that span to the left and to the right of the low resolution peak; andcalculating the R-R interval measurement based upon the high resolution peak.2. The method of claim 1 , wherein the detecting is at a high sampling rate claim 1 , further comprising:filtering the ECG signal using an anti-aliasing filter;converting the ECG signal from an analog domain to a digital domain using an analog-to-digital converter (ADC);filtering the digital ECG signal using a band-pass filter;down-sampling the digital ECG signal at a low sampling rate;processing at least one ECG sample of the digital ECG signal using a digital signal processing (DSP) algorithm to detect a peak of the down-sampled ECG signal; andsearching near the peak of the down-sampled ECG signal at the high sampling rate for the high resolution peak.3. The method of claim 1 , wherein the detecting is at a low sampling rate claim 1 , further comprising:filtering the ECG signal using an anti-aliasing filter; ...

Calibration method for the prospective calibration of measuring equipment

A method for operating measuring equipment for detecting at least one analyte in a bodily fluid by means of at least one continuously measuring blood glucose sensor. At least one calibration method is carried out for the prospective calibration of the measuring equipment. At least three calibration points are detected in the calibration method, wherein each calibration point comprises at least one measurement signal from the measuring equipment and at least one reference value of an associated reference measurement. A plurality of possible slopes are established between the calibration points. At least one robust estimation method, more particularly using a formation of at least one median, is used to determine at least one probable slope from the plurality of possible slopes. Furthermore, at least one measurement is carried out. During the measurement and using the probable slope, a concentration of the analyte in the bodily fluid is deduced from at least one measurement signal from the measuring equipment and the probable slope.

INTRODUCER FOR A MINIMALLY INVASIVE PHYSIOLOGIC PARAMETER RECORDER

An implantable monitoring device includes a flexible lead body that includes at least one sensing element. The device also includes a rigid main body connected to the flexible lead body at an attachment point. The rigid main body is generally centered about a longitudinal axis defined by the flexible lead body when the lead body is unflexed. The device further includes a measurement circuit, which is housed within the rigid main body and electrically coupled to the at least one sensing element of the flexible lead body and at least another sensing element on an outside surface of the rigid main body. The measurement circuit is configured to measure a potential difference between the at least one sensing element of the flexible lead body and the at least another sensing element of the main body. 1. An implantable medical device , comprising:a) a rigid section extending from a rigid section first end to a rigid section second end;b) a first flexible enclosure extending from the rigid section first end to a first flexible enclosure distal end, wherein a first electrode is electrically and mechanically connected to the first flexible enclosure distal end; andc) a second flexible enclosure extending from the rigid section second end to a second flexible enclosure distal end, wherein a second electrode is electrically and mechanically connected to the second flexible enclosure distal end.2. The implantable medical device of claim 1 , wherein the first flexible enclosure contains a charging coil and the second flexible enclosure contains an RF antenna.3. The implantable medical device of claim 1 , wherein the rigid section contains a rechargeable battery and device electronics.4. The implantable medical device of claim 1 , wherein the first and second flexible enclosures are comprises of silicone.5. The implantable medical device of claim 1 , wherein the first and second flexible enclosures are fluid-filled.6. The implantable medical device of claim 1 , wherein at least ...

SUBCUTANEOUS INSERTABLE CARDIAC MONITOR OPTIMIZED FOR LONG TERM, LOW AMPLITUDE ELECTROCARDIOGRAPHIC DATA COLLECTION

Long-term electrocardiographic and physiological monitoring over a period lasting up to several years in duration can be provided through a continuously-recording subcutaneous insertable cardiac monitor (ICM). The sensing circuitry and the physical layout of the electrodes are specifically optimized to capture electrical signals from the propagation of low amplitude, relatively low frequency content cardiac action potentials, particularly the P-waves that are generated during atrial activation. In general, the ICM is intended to be implanted centrally and positioned axially and slightly to either the left or right of the sternal midline in the parasternal region of the chest. Additionally, the ICM includes an ECG sensing circuit that measures raw cutaneous electrical signals and performs signal processing prior to outputting the processed signals for sampling and storage. 1. A subcutaneous insertable cardiac monitor (ICM) optimized for long term , low amplitude , electrocardiographic (ECG) data collection , comprising:an implantable housing comprised of a biocompatible material that is suitable for implantation within a living body;at least one pair of ECG sensing electrodes provided on a ventral surface and on opposite ends of the implantable housing operatively placed to facilitate sensing in closest proximity to the low amplitude, low frequency content cardiac action potentials that are generated during atrial activation; and a low power microcontroller operable to execute under modular micro program control as specified in firmware;', a signal lead operable to sense cardiac electrical potentials through one of the ECG sensing electrodes;', 'a reference lead operable to sense the cardiac electrical potentials through the other of the ECG sensing electrodes; and', 'a reference generator comprising a pair of resistors configured to inject a driven reference containing power supply noise and system noise into the body; and, 'an ECG front end circuit interfaced to ...

COMPRESSED SENSING ENABLED SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY APPARATUS, COMPUTER-ACCESSIBLE MEDIUM, SYSTEM AND METHOD FOR USE THEREOF

An exemplary system, method and computer-accessible medium for compressing data that can be based on an optical coherence tomography (OCT) signal can be provided, which can include, for example, receiving OCT data from a digital acquisition board that can be based on the OCT signal, storing the OCT data in a volatile memory, and compressing the stored OCT data using a compressed sensing procedure. The compressed sensing procedure can be based on a software mask residing on the computer hardware arrangement. The stored OCT data can be compressed using the software mask to mask particular portions of the stored OCT data. The compressed OCT data can be stored in a non-volatile data storage arrangement. The OCT signal can be an OCT calibration signal. 1. A non-transitory computer-accessible medium having stored thereon computer-executable instructions for compressing data that is based on an optical coherence tomography (OCT) signal , wherein , when a computer hardware arrangement executes the instructions , the computer hardware arrangement is configured to perform procedures comprising:receiving OCT data from at least one digital acquisition (DAQ) board that is based on the OCT signal;storing the OCT data in a volatile memory; andcompressing the stored OCT data using a compressed sensing (CS) procedure.2. The computer-accessible medium of claim 1 , wherein the CS procedure is based on a software mask residing on the computer hardware arrangement.3. The computer-accessible medium of claim 2 , wherein the computer hardware arrangement is configured to compress the stored OCT data using the software mask to mask particular portions of the stored OCT data.4. The computer-accessible medium of claim 3 , wherein the computer hardware arrangement is further configured to store the compressed OCT data in a non-volatile data storage arrangement.5. The computer-accessible medium of claim 1 , wherein the OCT signal is an OCT calibration signal.6. The computer-accessible medium of ...

Ultrasound based method and apparatus for stone detection and to facilitate clearance thereof

Described herein are methods and apparatus for detecting stones by ultrasound, in which the ultrasound reflections from a stone are preferentially selected and accentuated relative to the ultrasound reflections from blood or tissue. Also described herein are methods and apparatus for applying pushing ultrasound to in vivo stones or other objects, to facilitate the removal of such in vivo objects.

CLOSE PROXIMITY COMMUNICATION DEVICE AND METHODS

Disclosed herein are methods and systems for receiving an encoded data packet, one or more activation commands, and a communication identifier, decoding the received data packet, validating the decoded received data packet, and executing one or more routines associated with the respective one or more activation commands. 136-. (canceled)37. A method , comprising:positioning a receiver within a transmission range for close proximity communication with a transmitter;transmitting, by the receiver, one or more close proximity commands to the transmitter; andtransmitting, by the transmitter, one or more signals related to a monitored glucose level in response to the received one or more close proximity commands,wherein the receiver supplies power for the transmitter.38. The method of claim 37 , wherein the transmitter is configured without a battery.39. The method of claim 37 , wherein the transmitter includes a close proximity receiver coupled to an antenna for receiving the one or more close proximity commands from the receiver.40. The method of claim 37 , wherein transmitting claim 37 , by the receiver claim 37 , one or more close proximity commands to the transmitter comprises transmitting a sensor initiate close proximity command to the transmitter.41. The method of claim 40 , further comprising transmitting claim 40 , by the transmitter in response to the received sensor initiate command claim 40 , transmitter identification information to the receiver.42. The method of claim 37 , further comprising wirelessly communicating claim 37 , by the receiver claim 37 , with a handheld device connected to a data network for storing claim 37 , retrieving and updating data corresponding to the monitored glucose level.43. The method of claim 37 , wherein the transmission range includes a distance of less than one foot.44. The method of claim 37 , further comprising receiving claim 37 , by the transmitter claim 37 , one or more signals from a glucose sensor.45. A method claim ...

Compression And Mapping Of Physiological Signals For Health Condition Detection

Physiological signals produced at a wearable device are compressed and mapped to detect a health condition of a user of the wearable device. Physiological signal data indicating a physical quality of the user of the wearable device is produced based on noisy data recorded using sensors of the wearable device. The physiological signal data is compressed at the wearable device using a dictionary defined at a server device. The server device receives and decompresses the compressed physiological signal data to produce denoised physiological signal data indicating the physical quality of the user of the wearable device. A change in a physiological state of the user of the wearable device is determined using the denoised physiological signal data and historical physiological data of the user of the wearable device. The health condition is detected based on the change in the physiological state of the user of the wearable device. 1. A method for using compressed physiological signal data to detect a health condition of a user of a wearable device , the method comprising:producing, by a software application run on the wearable device, physiological signal data based on noisy data recorded using one or more sensors of the wearable device, the physiological signal data indicating a physical quality of the user of the wearable device;compressing, by the software application, the physiological signal data using a dictionary defined by a server application run on a server device;communicating, from the wearable device, the compressed physiological signal data to the server device;decompressing, by the server application, the compressed physiological signal data to produce denoised physiological signal data indicating the physical quality of the user of the wearable device;determining, by the server application, a change in a physiological state of the user of the wearable device based on a difference between the physical quality of the user of the wearable device indicated by ...

Methods and Systems for Automatically Detecting Events Based on ECG Signals Determined From Compressed Sensed Measurements

Techniques are provided for generating and processing compressed sensor data. Sensor signals can be collected using one or more sensors. The sensor signals can be compressed using a compression data structure. In some instances, the compressed signal corresponds to a sampling rate at or below the Nyquist sampling rate. The compressed signal can be compared to one or more templates. Events within the compressed signal can be detected and characterized based on the comparison. 1. A heart monitor device comprising:one or more sensors;one or more data processors; and generating an electrocardiogram (ECG) signal based on one or more cardiac signals, each cardiac signal of the one or more cardiac signals being collected via a sensor of the one or more sensors;', 'retrieving a compression data structure;', 'compressing the ECG signal using the compression data structure to produce a compressed ECG signal, wherein the compressed ECG signal retains information indicating timings of R-peaks; and', 'outputting the compressed ECG signal or data characterizing the compressed ECG signal., 'a non-transitory computer readable storage medium containing instructions which when executed on the one or more data processors, cause the one or more data processors to perform actions including2. The heart monitor device of claim 1 , wherein the actions further include:accessing one or more ECG templates associated with one or more types of ECG events, each ECG template of the one or more ECG templates corresponding to compressing a signature of a type of ECG event of the one or more types of ECG events using the compression data structure;comparing the compressed ECG signal to each of the one or more ECG templates;identifying, based on the comparison, one or more parts of the compressed ECG signal that corresponds to a particular type of ECG event of the one or more types of ECG events; andoutputting characterization data that is indicative of the particular type of ECG event.3. The heart ...

IMAGE HANDLING AND DISPLAY IN X-RAY MAMMOGRAPHY AND TOMOSYNTHESIS

A method and system for acquiring, processing, storing, and displaying x-ray mammograms Mp tomosynthesis images Tr representative of breast slices, and x-ray tomosynthesis projection images Tp taken at different angles to a breast, where the Tr images are reconstructed from Tp images 1. A method of acquiring and displaying x-ray images comprising:acquiring x-ray mammography image data Mp representative of projection mammography images of patients' breasts and x-ray tomosynthesis image data Tp representative of projection images Tp taken at different angles of an origin of imaging x-rays relative to the patients' breasts, from an acquisition unit configured to selectively acquire said mammography and tomosynthesis image data;reconstructing at least a subset of the acquired Tp data into reconstructed tomosynthesis image data Tr representative of images of slices of the breasts that have selected orientations and thicknesses; anddisplaying at least a selected subcombination of the Mp, Tr and Tp image data as respective Mp, Tp and/or Tr images for concurrent viewing while identifying the displayed images as Mp, Tr and/or Tp images.2101-. (canceled) This is a continuation-in-part of earlier-filed application Ser. Nos. 10/305,480 and 10/723,486, filed respectively on Nov. 27, 2002 and Nov. 26, 2003, and claims the benefit of provisional application Nos. 60/628,516 and 60/631,296 filed respectively on Nov. 15 and 26, 2004, and incorporates herein by reference the entire contents of each of said earlier-filed patent applications.This patent specification pertains to x-ray mammography and tomosynthesis, and more specifically to techniques and equipment for acquiring, processing, storing and displaying mammograms, tomosynthesis projection images, and tomosynthesis reconstructed images.Mammography has long been used to screen for breast cancer and other abnormalities. Traditionally, mammograms were formed on X-ray film, but more recently flat panel digital imagers have been ...

COMPRESSIVE SENSING OF QUASI-PERIODIC SIGNALS USING GENERATIVE MODELS

Methods and systems are described for sensing and recovery of a biological signal using generative-model-based compressive sensing. A transformation is applied to sparsify the quasi-periodic signal removing morphology parameters and leaving temporal parameters. The sparsified signal is sampled and the sampled signal data is transmitted to a base station. A homotopy recovery algorithm is applied to the received sampled signal data by the base station to recover the temporal parameters of the biological signal. Generative modelling is applied using previously captured morphology parameters to generate a reconstructed signal. Finally, the reconstructed signal is adjusted and scaled based on the recovered temporal parameters to provide a reconstructed signal that is diagnostically equivalent to the original biological signal. 1. A monitoring system comprising a wearable sensor device , the wearable sensor device includinga sensor configured to detect a quasi-periodic signal;a wireless transmitter; and apply a transformation to generate a sparsified signal based on the quasi-periodic signal, wherein the sparsified signal includes temporal parameters of the quasi-periodic signal and omits morphology parameters of the quasi-periodic signal,', 'sample the sparsified signal, and', 'transmit the sampled sparsified signal through the wireless transmitter to a base station device for recovery of the quasi-periodic signal., 'an electronic processor, the electronic processor configured to'}2. The monitoring system of claim 1 , wherein the sensor includes an ECG sensor claim 1 , and wherein the quasi-periodic signal includes an ECG signal.3. The monitoring system of claim 1 , further comprising the base station claim 1 , wherein the base station is configured toreceive sampled sparsified signal,recover the temporal parameters of the quasi-periodic signal from the sampled sparsified signal,generate a reconstructed signal shape using previously captured morphology parameters, ...

METHOD OF PROCESSING SIGNAL, METHOD OF RECOVERING SIGNAL, AND DEVICES PERFORMING THE METHODS

A signal processing method including receiving a signal, compressing the signal through a sampling of the signal, and generating transmission data of the signal by matching at least one feature indicating characteristics of the signal. 1. A signal processing method comprising:compressing a data signal to generate a compressed signal; andgenerating transmission data by matching at least one characteristic feature in the data signal and the compressed signal.2. The signal processing method of claim 1 , further comprising:determining the at least one characteristic feature within the data signal.3. The signal processing method of claim 1 , wherein the at least one characteristic feature includes a start point claim 1 , an end point claim 1 , a peak point claim 1 , and a valley point of the data signal.4. The signal processing method of claim 1 , wherein the data signal indicates a movement of a user.5. The signal processing method of claim 4 , wherein the at least one characteristic feature is based on a gait characteristic of the user.6. The signal processing method of claim 1 , wherein the compressing includes sampling the data signal claim 1 , and the method further comprises:appending sampling information associated with the sampling of the data signal to a header of the transmission data.7. The signal processing method of claim 1 , wherein the compressing comprises:sampling the data signal to generate a sampled signal; andcompressing the sampled signal based on a quantization parameter to generate the compressed signal.8. The signal processing method of claim 1 , further comprising:detecting the data signal at one or more intervals determined based on at least one step of a user associated with the data signal.9. A signal recovering method comprising:receiving transmission data from an external device;extracting, from the transmission data, a compressed signal having a data signal detected by the external device therein; andrecovering the data signal based on the ...

BODY WORN PHYSIOLOGICAL SENSOR DEVICE HAVING A DISPOSABLE ELECTRODE MODULE

A body worn patient monitoring device includes a flexible substrate having a plurality of electrical connections adapted to be coupled to a skin surface to measure physiological signals. The flexible substrate is adapted to be directly and non-permanently affixed to a skin surface of a patient and configured for single patient use. A communication-computation module, removably attached to an upper surface of the flexible substrate, is configured to receive physiological signals from the flexible substrate and includes a microprocessor that is configured to process and analyze the physiological signals. A series of resistive traces screened onto the flexible substrate are configured as at least one series current-limiting resistor to protect the communication-computation module. 1. An ECG monitoring device comprising:a disposable module including a flexible circuit substrate having a plurality of electrical connections adapted for electrical coupling to a skin surface in order to receive physiological signals and at least two ECG electrodes;a power source supported by the disposable module; anda communication-computation module releasably connected to the disposable module and including:a microprocessor that receives the physiological signals and analyzes the signals in real-time to determine the occurrence of a predetermined event; anda radio circuit that is configured to transmit an unprocessed physiological signal or the determination of the predetermined event to a remote location, in which the at least two ECG electrodes comprise a material screened onto the flexible circuit substrate and wherein the monitoring device further comprises at least one series current-limiting resistor screened onto the flexible circuit substrate in the form of resistive traces to protect the communication-computation module.2. The monitoring device of claim 1 , in which the at least one series current-limiting resistor is configured to protect the communication-computation module ...

SYSTEMS AND METHODS OF PATIENT DATA COMPRESSION

A system including a medical device is provided. The medical device includes at least one sensor configured to acquire first data descriptive of a patient, first memory storing a plurality of templates, and at least one processor coupled to the at least one sensor and the first memory. The at least one processor is configured to identify a first template of the plurality of templates that is similar to the first data, to determine first difference data based on the first template and the first data, and to store the first difference data in association with the first template. The system may further include the programmable device. 122.-. (canceled)23. A medical device for efficient transmission of patient data , the medical device comprising:at least one sensor configured to acquire electrocardiogram (ECG) data descriptive of a patient condition;at least one memory configured to store a plurality of ECG templates;at least one network interface; and receive current ECG data for the patient from the at least one sensor,', 'compare the current ECG data to a first reference template of the plurality of ECG templates,', 'calculate difference data between the current ECG data and the first reference template,', 'compress the difference data and an identifier of the first reference template to generate compressed data, and', 'transmit the compressed data via the network interface to a programmable device distinct from the medical device., 'at least one processor coupled to the at least one sensor, the at least one memory, and the at least one network interface, the at least one processor configured to24. The medical device of claim 23 , wherein the at least one processor is further configured to:receive initial ECG data for the patient from the at least one sensor; andgenerate the plurality of ECG templates for the patient based upon the initial ECG data, the plurality of ECG templates stored on the memory.25. The medical device of claim 24 , wherein the at least one ...

Intraoral OCT with Compressive Sensing

A method for acquiring image data obtains, for an intraoral feature, optical coherence tomography (OCT) data in three dimensions wherein at least one dimension is pseudo-randomly or randomly sampled and reconstructs an image volume of the intraoral feature using compressive sensing, wherein data density of the reconstructed image volume is larger than that of the obtained OCT data in the at least one dimension or according to a corresponding transform. The method renders the reconstructed image volume for display. 1. A method for acquiring image data comprising:obtaining, for an intraoral feature, optical coherence tomography (OCT) data in three dimensions wherein at least one dimension is pseudo-randomly or randomly sampled;reconstructing an image volume of the intraoral feature using compressive sensing wherein data density of the reconstructed image volume is larger than that of the obtained OCT data in the at least one dimension or according to a corresponding transform; andrendering the reconstructed image volume for display.2. The method of wherein the intraoral feature comprises a tooth.3. The method of wherein using compressive sensing comprises performing a minimization computation on the obtained OCT data in the at least one dimension.4. The method of further comprising performing OCT reconstruction.5. The method of wherein obtaining data in three dimensions comprises obtaining intensity data at two spatial dimensions and a frequency or wavelength dimension.6. The method of further comprising segmenting the reconstructed image volume and rendering a two-dimensional image of the reconstructed volume.7. A method for acquiring intraoral volume image data comprising:obtaining, along each of a number of rows across a surface of a sample, a plurality of optical coherence tomography (OCT) scans, wherein a distance between the OCT scans varies randomly or pseudo-randomly along the row;reconstructing the intraoral volume using compressive sensing wherein data ...

SYSTEM AND METHOD FOR REDUCING PHYSIOLOGICAL DATA SIZE

The present disclosure pertains to systems and methods for encoding and/or decoding brain activity signals for data reduction. In a non-limiting embodiment, first user data associated with a first sleep session of a user is received. The first user data is determined to include at least a first instance of a first sleep feature being of a first data size. A first value representing the first instance during a first temporal interval is determined. First encoding data representing the first value is determine, the first encoding data being of a second data size that is less than the first data size. Second user data is generated by encoding the first user data using the first encoding data to represent the first instance in the second user data, and the second user data is stored. 1. A method for reducing a data size of user data associated with a sleep session , the method comprising:receiving, from one or more sensors, first user data associated with a first sleep session of a user;determining that the first user data comprises at least a first instance of a first sleep feature, the first sleep feature being a first data size;determining a first value representing the first instance during a first temporal interval;determining first encoding data representing the first value, the first encoding data being a second data size that is less than the first data size;generating second user data by encoding the first user data using the first encoding data to represent the first instance in the second user data; andstoring the second user data.2. The method of claim 1 , further comprising:generating, prior to the first value being determined, third user data by applying a first filter to the first user data;segmenting the third user data into a plurality of temporal intervals, the plurality comprising the first temporal interval; anddetermining that the first temporal interval comprises the first instance.3. The method of claim 1 , further comprising:obtaining the second ...

Data Analytic System

The invention includes a system to gather and analyze data to monitor, track, and provide care. The major subsystems of the invention include the Medical Digital Assistant (“MDA”), Server, Monitoring Devices, Dispensing Devices, Server, Dashboard, and Application Software. The invention includes conducting data acquisition, monitoring, analysis, and reporting to diagnose and treat medical conditions such as diagnosing and treating specific medical conditions such as fertility and congestive heart failure.

WIRELESS PHYSIOLOGICAL SENSOR PATCHES AND SYSTEMS

The present invention provides methods, devices, and systems for wireless physiological sensor patches and systems which incorporate these patches. The systems and methods utilize a structure where the processing is distributed asymmetrically on the two or more types of ASIC chips that are designed to work together. The invention also relates to systems comprising two or more ASIC chips designed for use in physiological sensing wherein the ASIC chips are designed to work together to achieve high wireless link reliability/security, low power dissipation, compactness, low cost and support a variety of sensors for sensing various physiological parameters. 1. An asymmetric system comprising: two or more ASIC chips wherein the chips are designed to work together to measure physiological signals , comprising:(a) a patch-ASIC chip adapted for incorporation into a physiological signal monitoring patch comprising a sensor interface, a processor coupled to the sensor interface, a memory element coupled to the processor, a radio coupled to the memory element that transmits data to a base-ASIC chip, and power management circuits that coordinate power usage on the chip; and(b) the base-ASIC chip, comprising a processor that processes sensor data, a memory element coupled to the processor, a radio coupled to the memory element that communicates instructions to the patch-ASIC chip, power management circuits for coordinating power usage on the chip, and a host interface through which the base-ASIC chip communicates with a host device;wherein the base-ASIC chip has more processing resources than the patch-ASIC chip.2. The system of wherein the base-ASIC has a higher silicon area than the patch-ASIC chip.3. The system of wherein the ratio of silicon area of the base-ASIC chip to the patch-ASIC chip is at least about 2:1.4. The system of wherein the ratio of silicon area of the base-ASIC chip to the patch-ASIC chip is at least about 4:1.5. The system of wherein the patch-ASIC chip ...

METHOD AND APPARATUS FOR UNDER-SAMPLED ACQUISITION AND TRANSMISSION OF PHOTOPLETHYSMOGRAPH (PPG) DATA AND RECONSTRUCTION OF FULL BAND PPG DATA AT THE RECEIVER

Certain aspects of the present disclosure relate to a method for compressed sensing (CS). The CS is a signal processing concept wherein significantly fewer sensor measurements than that suggested by Shannon/Nyquist sampling theorem can be used to recover signals with arbitrarily fine resolution. In this disclosure, the CS framework is applied for sensor signal processing in order to support low power robust sensors and reliable communication in Body Area Networks (BANs) for healthcare and fitness applications. 1actuating a sensor of an apparatus, wherein the actuating causes the sensor to direct energy toward a biological tissue;sampling, by the apparatus, a signal formed by the sensor based on a response of the biological tissue to the directed energy, the sampling performed at time instances that are non-uniformly spaced apart and according to an average sampling rate that is less than a Nyquist sampling rate for the signal;precoding, by the apparatus, the sampled signal or a signal derived therefrom for transmission to a receiver device, the precoding comprising generating a precoded signal by encoding the sampled signal or the signal derived therefrom using information indicative of the time instances at which the signal was sampled; andtransmitting, by the apparatus, the precoded signal to the receiver device.. A method, comprising: This application is a continuation of U.S. Non-Provisional application Ser. No. 12/512,480, filed Jul. 30, 2009, titled “METHOD AND APPARATUS FOR UNDER-SAMPLED ACQUISITION AND TRANSMISSION OF PHOTOPLETHYSMOGRAPH (PPG) DATA AND RECONSTRUCTION OF FULL BAND PPG DATA AT THE RECEIVER,” which claims the benefit and priority of U.S. Provisional Application No. 61/100,654, filed Sep. 26, 2008, titled “UNDER-SAMPLED ACQUISITION OF PPG, TRANSMISSION AND RECONSTRUCTION” and Provisional Application No. 61/101,056, filed Sep. 29, 2008, titled “UNDER-SAMPLED ACQUISITION OF PPG, TRANSMISSION AND RECONSTRUCTION,” each of which is assigned to the ...

Physiological acoustic monitoring system

An acoustic monitoring system has an acoustic front-end, a first signal path from the acoustic front-end directly to an audio transducer and a second signal path from the acoustic front-end to an acoustic data processor via an analog-to-digital converter. The acoustic front-end receives an acoustic sensor signal responsive to body sounds in a person. The audio transducer provides continuous audio of the body sounds. The acoustic data processor provides audio of the body sounds upon user demand.

FETAL ELECTROCARDIOGRAPHIC SIGNAL PROCESSING METHOD AND FETAL ELECTROCARDIOGRAPHIC SIGNAL PROCESSING DEVICE

Provided are a fetal electrocardiographic signal processing method and a fetal electrocardiographic signal processing device that can appropriately select a signal reliably including a fetal electrocardiographic component from a plurality of signals separated by independent component analysis with reference. The fetal electrocardiographic signal processing method according to the invention includes: a fetal feature display signal extraction step of separating separation signals for a plurality of channels from biological signals of the plurality of channels acquired from a pregnant mother, using independent component analysis with reference, and removing noise from the separation signal for each channel to extract a fetal feature display signal; and a maternal electrocardiographic signal removal step of removing the fetal feature display signal at a timing when an electrocardiographic signal of the mother is likely to appear from the fetal feature display signals to obtain fetal feature signals including a large number of fetal electrocardiographic signals. 1. A fetal electrocardiographic signal processing method comprising:a fetal feature display signal extraction step of separating a separation signal for each channel from biological signals of a plurality of channels acquired from a pregnant mother, using independent component analysis with reference, and removing noise from each separation signal to extract a fetal feature display signal for each channel; anda maternal electrocardiographic signal removal step of removing the fetal feature display signal at a timing when an electrocardiographic signal of the mother is likely to appear from the fetal feature display signals to obtain fetal feature signals including a large number of fetal electrocardiographic signals.2. The fetal electrocardiographic signal processing method according to claim 1 , wherein the fetal feature display signal extraction step includes:a complex signal generation step of generating a ...

Ambulatory Rescalable Encoding Monitor Recorder

An ambulatory rescalable encoding monitor recorder and a method for monitor recorder-implemented rescalable encoding are provided. An encoding table comprising a plurality of codes and a range of electrocardiographic values associated with each of the codes is maintained. Electrocardiographic values are sensed by the monitor recorder during a sequence of temporal windows. The values are processed, the processing including: calculating a difference between a maximum one and a minimum one of the values in each of the windows; comparing each of the differences to an at least one threshold; based on the comparison of the difference for at least one of the windows, adjusting table; encoding each of the values with one of the codes using the table, wherein the adjusted table is used for the encoding of the values in the at least one window; and writing each of the codes into a sequence into the recorder memory. 1. A system for providing dynamic gain over filtered electrocardiographic data with the aid of a digital computer , comprising: a value module configured to obtain a time series of a plurality of voltage values that comprises a digital representation of a raw electrocardiography (“ECG”) signal of recorded by an ambulatory monitor recorder;', 'a filter module configured to mark one or more of the values as noise by applying one or more noise filters to the time series;', 'an identification module configured to identify one or more segments of the ECG signal comprising a plurality of the values that have not been marked as the noise, each of the segments falling within a temporal window, and to calculate a difference between a maximum one of the values and a minimum one within each of the windows; and', 'a gain module configured to use the differences for each of the windows to determine a gain factor for the values in all of the windows., 'a download station configured to execute code comprising2. A system according to claim 1 , wherein one of the filters is a high ...

WEARABLE SYSTEM FOR CAPTURING AND TRANSMITTING BIOMEDICAL SIGNALS

Certain aspects of the present disclosure relate to a method for compressed sensing (CS). The CS is a signal processing concept wherein significantly fewer sensor measurements than that suggested by Shannon/Nyquist sampling theorem can be used to recover signals with arbitrarily fine resolution. In this disclosure, the CS framework is applied for sensor signal processing in order to support low power robust sensors and reliable communication in Body Area Networks (BANs) for healthcare and fitness applications. 1. A wearable system , comprising:one or more sensors, each sensor being adapted to be worn on a body of a user and configured to capture at least one biomedical signal, wherein biomedical signals capturable by the one or more sensors include at least one of an electro-cardiogram (ECG) signal, or a photoplethysmograph (PPG) signal, or both; wirelessly transmit each biomedical signal captured by the one or more sensors to a mobile phone of the user, wherein the biomedical signal is used by the mobile phone to generate a reconstructed signal corresponding to the biomedical signal;', 'generate a first processed signal by processing the ECG signal or the PPG signal, or both; and', 'wirelessly transmit the first processed signal to the mobile phone, wherein the first processed signal is used by the mobile phone to generate a first reconstructed signal corresponding to the first processed signal and to generate an output at the mobile phone based on the first reconstructed signal, the output being provided through a user interface presented on a display of the mobile phone., 'the wearable system configured to2. The wearable system of claim 1 , wherein the one or more sensors include a first sensor configured to generate the first processed signal claim 1 , and wherein the first processed signal represents a heart rate variability claim 1 , a pulse arrival time (PAT) claim 1 , a blood pressure claim 1 , or a blood oxygen content.3. The wearable system of claim 1 , ...

Computerized apparatus with ingestible probe

An endoscopic apparatus including a probe which is introduced into, for example, the intestinal tract of a living organism and which operates therein, adapted to perform one or more functions. In one embodiment, the probe communicates wirelessly with a portable electronic device outside the organism, the portable device which acts to relay data between the probe and a remote networked entity. In one variant, the probe includes an accelerometer to, for example, wake the probe up from a sleep mode when the organism is awake or ambulatory.

AMBULATORY ENCODING MONITOR RECORDER OPTIMIZED FOR RESCALABLE ENCODING AND METHOD OF USE

In one embodiment, an ambulatory encoding monitor recorder optimized for rescalable encoding and a method of use are provided. The monitor recorder includes a memory configured to store a plurality of codes and a plurality of electrocardiographic values associated with each of the codes; and a micro-processor configured to obtain electrocardiographic values during a sequence of temporal windows and to process the electrocardiographic values within each of the windows, the processing including: perform a mathematical operation on two of the electrocardiographic values; analyze a result of each of the mathematical operations; based on the analysis, adjust the plurality of the electrocardiographic values associated with each of the codes; encode each of the electrocardiography values within that window with one of the codes based on the adjusted plurality of the electrocardiographic values associated with that code; and write each of the codes into a sequence in the memory. 1. An ambulatory encoding monitor recorder optimized for rescalable encoding , comprising:a memory configured to store a plurality of codes and a plurality of electrocardiographic values associated with each of the codes; and perform a mathematical operation on two of the electrocardiographic values in each of the temporal windows;', 'analyze a result of each of the mathematical operations;', 'based on the analysis for at least one of the windows, adjust the plurality of the electrocardiographic values associated with each of the codes;', 'encode each of the electrocardiography values within that window with one of the codes based on the adjusted plurality of the electrocardiographic values associated with that code; and', 'write each of the codes into a sequence in the memory., 'a micro-processor configured to obtain electrocardiographic values during a sequence of temporal windows and to process the electrocardiographic values within each of the windows, the processing comprising2. An ambulatory ...

ELECTROCARDIOGRAPHY MONITOR CONFIGURED FOR SELF-OPTIMIZING ECG DATA COMPRESSION

An electrocardiography monitor configured for self-optimizing ECG data compression is provided. ECG waveform characteristics are rarely identical in patients with cardiac disease making this innovation crucial for the long-term data storage and analysis of complex cardiac rhythm disorders. The monitor includes a memory and a micro-controller operable to execute under a micro-programmable control and configured to: obtain a series of electrode voltage values; select one or more of a plurality of compression algorithms for compressing the electrode voltage series; apply one or more of the selected compression algorithms to the electrode voltage series; evaluate a degree of compression of the electrode voltage series achieved using the application of the selected algorithms; apply one or more of the compression algorithms to the compressed electrode voltage series upon the degree of compression not meeting a predefined threshold; and store the compressed electrode voltage series within the memory. 1. An electrocardiography monitor configured for self-optimizing ECG data compression , comprising:a memory; obtain a series of electrode voltage values;', 'select one or more of a plurality of compression algorithms for compressing the electrode voltage series;', 'apply one or more of the selected compression algorithms to the electrode voltage series;', 'evaluate a degree of compression of the electrode voltage series achieved using the application of the selected algorithms;', 'apply one or more of the compression algorithms to the compressed electrode voltage series upon the degree of compression not meeting a predefined threshold; and', 'store the compressed electrode voltage series within the memory., 'a micro-controller operable to execute under a micro-programmable control and configured to2. An electrocardiography monitor according to claim 1 , the micro-controller further configured to:obtain a result of a prior data compression performed using one or more of the ...

APPARATUS AND METHOD FOR COMPRESSING CONTINUOUS DATA

Disclosed are an apparatus and method for compressing continuous data. The apparatus for compressing continuous data may include a data generator configured to calculate differences between adjacent values in original continuous data and generate data based on the calculated differences. 1. An apparatus for compressing continuous data , the apparatus comprising:a data generator configured to calculate differences between adjacent values in original continuous data and generate data based on the calculated differences.2. The apparatus of claim 1 , wherein the original continuous data is one of Photoplethysmograph (PPG) data and absorbance data.3. The apparatus of claim 1 , wherein the generated data comprises a first value of the original continuous data and the calculated differences.4. The apparatus of claim 1 , further comprising a sign remover configured to compare each of a plurality of values of the generated data with its preceding value to detect a value whose sign is changed claim 1 , show the sign of the detected value claim 1 , and remove signs of remaining values.5. The apparatus of claim 4 , wherein the sign remover is configured to show a sign of a first value of the generated data.6. The apparatus of claim 1 , further comprising a decimal point remover configured to remove a decimal point from each of the values of the generated data if the generated data comprises values with an identical number of decimal places.7. The apparatus of claim 6 , wherein the decimal point remover is configured to remove a zero before a significant digit from the values of the generated data.8. The apparatus of claim 1 , further comprising a second compressor configured to compress the generated data from which the signs of the remaining values are removed using a lossless compression algorithm or a lossy compression algorithm.9. The apparatus of claim 8 , wherein the lossless compression algorithm is one of a run-length encoding (RLE) algorithm claim 8 , a dictionary- ...

ELECTRONIC DEVICE

According to one embodiment, an electronic device is configured to be worn by a user. The electronic device includes a sensor, a wireless transceiver, and a processor. The sensor measures vital data of the user. The wireless transceiver performs wireless communication with an external device. The processor selects a storage method of the vital data corresponding to strength of a signal transmitted from the external device and received by the wireless transceiver. 1. An electronic device configured to be worn by a user , the device comprising:a sensor configured to measure vital data of the user;a wireless transceiver configured to perform wireless communication with an external device; anda processor configured to select a storage method of the vital data corresponding to strength of a signal transmitted from the external device and received by the wireless transceiver.2. The electronic device of claim 1 , wherein the processor is configured to select claim 1 , when the strength is greater than or equal to a first threshold value claim 1 , a first storage method which transmits first data based on the vital data to the external device.3. The electronic device of claim 2 , wherein the processor is configured to select claim 2 , when the strength is less than the first threshold value and is greater than or equal to a second threshold value claim 2 , a second storage method which transmits second data to the external device claim 2 , wherein size of the second data based on the vital data is less than the first data.4. The electronic device of claim 3 , wherein the first data and the second data are compressed in a lossless compression scheme.5. The electronic device of claim 4 , wherein the lossless compression scheme is a second-order difference scheme.6. The electronic device of claim 3 , wherein the processor selects claim 3 , when the strength is less than the second threshold value and is greater than or equal to the a third threshold value claim 3 , a third ...

SYSTEM AND METHODS FOR COLLECTING AND PROCESSING DATA ON ONE OR MORE PHYSIOLOGICAL PARAMETERS OF MONITORED SUBJECT

A method of collecting physiological parameter data of a monitored subject comprises measuring a biosignal from which the physiological parameter is deducible, including noise; converting the noisy measured biosignal to a vector having different frequency components with corresponding magnitude coefficients; discarding select frequency components with coefficients below a prescribed threshold; and communicating the reduced vector to a computing device for processing to deduce the physiological parameter. A method of processing physiological parameter data comprises receiving a measured biosignal with electromagnetic interference noise; obtaining from the noisy measured biosignal representative data using a machine learning algorithm; and determining the physiological parameter from the representative data. A system for monitoring a physiological parameter comprises a wearable sensor configured to measure a biosignal and to remove noise from the measured signal, and a portable computing device configured to receive a transmitted signal from the sensor and to determine the physiological parameter therefrom. 1. A method of collecting data on a physiological parameter of a monitored subject for processing , the method comprising:measuring a biosignal, from which the physiological parameter is deducible, to form a signal comprising data representative of the physiological parameter and noise data;converting the signal to a vector having a plurality of different frequency components each with a corresponding magnitude coefficient;discarding from the vector select ones of the frequency components with coefficients below a prescribed threshold to form a reduced vector; andcommunicating the reduced vector to a computing device for processing to deduce the physiological parameter.2. The method of wherein claim 1 , when measuring the biosignal is performed using a wearable sensor claim 1 , the noise data comprises noise associated with movement of the wearable sensor.3. The ...

ELECTRONIC APPARATUS AND CONTROL METHOD THEREOF

Disclosed is an electronic apparatus for measuring a biometric signal, the electronic apparatus including: a measurer comprising measuring circuitry configured to measure a biometric signal of a person to be examined, and to generate a measured signal having a waveform corresponding to a characteristic of the biometric signal; a signal processor configured to process the generated measured signal; and a controller configured to control the signal processor to generate a compressed signal by compressing the measured signal and at least one piece of characteristic information included in a waveform of the measured signal, when the measured signal is compressed. Thus, a measured biometric signal is efficiently compressed while reducing a loss of main characteristic information. 1. An electronic apparatus configured to measure a biometric signal , the electronic apparatus comprising:a measurer comprising measuring circuitry configured to measure a biometric signal of a person to be examined, and to generate a measured signal having a waveform corresponding to a characteristic of the biometric signal;a signal processor comprising signal processing circuitry configured to process the generated measured signal; anda controller configured to control the signal processor to generate a compressed signal by compressing the measured signal and at least one piece of characteristic information included in a waveform of the measured signal, when the measured signal is compressed.2. The electronic apparatus according to claim 1 , wherein the controller is configured to control the signal processor to decompress the compressed signal so that at least a part of the compressed signal claim 1 , which is lost by compression claim 1 , can be recovered based on the characteristic information claim 1 , when the compressed signal is decompressed.3. The electronic apparatus according to claim 1 , wherein the measured signal comprises a plurality of periods claim 1 , andthe controller is ...

Integrated system architectures

The invention generally relates to imaging systems and more particularly to integrated architectures. In certain embodiments, the invention provides an integrated system including a work station and a patient area, in which the work station is remote from the patient area and the work station is operably associated with the patient area.

Method and system for monitoring continuous biomedical signal

A method and system for monitoring a biomedical signal employ a sensor module configured to output a continuous electrical signal by sensing the biomedical signal, a memory configured to store reference data, a transmitter configured to transmit output data via a wireless channel, and a data processing unit configured to determine whether to transmit input data via the transmitter as the output data, based on the input data, which is generated from the continuous electrical signal, and the reference data.

SURGICAL SYSTEM, SURGICAL DEVICE, AND SURGICAL METHOD

The present disclosure relates to a surgical system, a surgical device, and a surgical method with which startup time can be shortened. 1. A surgical system comprising:a surgical imaging device that captures an image for surgery; anda surgical device including:an image processing unit that processes the image captured by the surgical imaging device; anda loading unit that reads, at time of startup, information of a program space on a memory recorded in a recording medium after startup of an operating system (OS) is finished, and loads the information of the program space on the memory.2. The surgical system according to claim 1 , whereincontents of the program space and an address for return are recorded in the recording medium as the information of the program space.3. The surgical system according to claim 1 , whereinthe memory includes a double-data-rate (DDR) RAM.4. The surgical system according to claim 1 , whereinthe recording medium includes a solid state drive (SSD).5. The surgical system according to claim 1 , further comprisinga recording unit that records the information of the program space in the recording medium after the startup of the OS is finished.6. The surgical system according to claim 5 , whereinafter the startup of the OS is finished, the recording unit starts up processes of a surgical application program, collaborates with a predetermined process of the processes, causes each process to reserve a resource and to execute sleep, and records the information of the program space.7. The surgical system according to claim 6 , whereinorder of starting up the surgical application program is order of proximity to hardware.8. The surgical system according to claim 6 , whereinthe surgical application program is an endoscopic surgical application program.9. The surgical system according to claim 8 , whereinthe surgical imaging device is an endoscope.10. The surgical system according to claim 6 , whereinthe surgical application program is a microscopic ...

COMPUTERIZED INFORMATION COLLECTION AND PROCESSING APPARATUS

An improved endoscopic device which is introduced into the intestinal tract of a living organism and which operates autonomously therein, adapted to obtain and store or transmit one or more types of data such as visual image data, laser autofluorescence data, or ultrasonic waveform data. In another aspect of the invention, an improved endoscopic device useful for implanting the aforementioned endoscopic smart probe is disclosed. In another aspect of the invention, apparatus for delivering agents including nanostructures, radionuclides, medication, and ligands is disclosed. In another aspect of the invention, apparatus for obtaining a biopsy of intestinal tissue is disclosed. In another aspect of the invention, apparatus for detecting the presence of one or more molecular species within the intestine is disclosed. Methods for inspecting and/or treating the interior regions of the intestinal tract using the aforementioned apparatus are also disclosed. 129.-. (canceled)30. Computerized information acquisition and processing apparatus , comprising: a power source;', 'at least one camera apparatus;', 'video apparatus in communication with the at least one camera apparatus and configured to generate digital image data from signals received from the at least one camera apparatus;', 'first processor apparatus in data communication with the video apparatus;', 'digital data storage apparatus in data communication with the first processor apparatus; and', 'a wireless interface having at least one antenna and configured for digital data transfer, the wireless interface being powered at least in part by the power source; and, 'computerized apparatus swallowable by a human being and comprising production of a plurality of frames from said at least portion of said received at least portion of said digital image data;', 'algorithmic analysis of said plurality of frames to identify a subset of said plurality of frames of potential interest to a user of the second computerized ...

DETECTION APPLIANCE AND METHOD FOR OBSERVING SLEEP-RELATED BREATHING DISORDERS

A detection appliance and a method detect and evaluate a measuring signal that is indicative of breathing of a sleeping person, in connection with the observation of sleep-related breathing disorders. Instruments also detect signals that are indicative of breathing of a patient. The aim provides solutions that enable a reliable examination in terms of occurrence of sleep-related sleeping disorders, in the usual surroundings of the person concerned. In a first form, a mobile detection appliance is provided with a sensor device for detecting a nasal flow signal indicative of a nasal respiratory gas flow, and/or a respiratory flow signal indicative of an oral respiratory gas flow, in addition to an electronic data processing unit comprising a memory device and processing the signals indicative of temporal course of the nasal and oral respiration. The data processing device is configured to store data indicative of temporal course of the respiratory flow signals. 1. A mobile device comprising:a sensor device configured to acquire a respiratory flow signal indicative of a respiratory gas flow;an electronic data processing device configured to process the respiratory flow signal, anda memory device;wherein the electronic data processing device is configured to initiate a process for storing of data indicative of a temporal course of the respiratory flow signal to the memory device; andwherein the mobile device further comprises an interface device configured to transmit the stored data to an external analysis system.2. A mobile device according to claim 1 , wherein the interface device is configured to transmit the stored data wirelessly to the external analysis system.3. A mobile device according to wherein the interface device is an infrared interface.4. A mobile device according to claim 1 , wherein the sensor device configured to acquire the respiratory flow signal indicative of the respiratory gas flow is connected to a mask device.5. A mobile device according to ...

ADAPTIVE BIO-SIGNAL FEATURE COMBINING APPARATUS AND METHOD

An adaptive bio-signal feature combining apparatus includes: a feature extractor configured to extract first feature values and second feature values from a bio-signal of an object; a stable interval determiner configured to determine at least one stable interval in the bio-signal; a statistical variable calculator configured to calculate a statistical variable value of a first feature and a statistical variable value of a second feature for each of the at least one stable interval based on the first and second feature values extracted from the at least one stable interval; and a feature combiner configured to calculate an integrated combining coefficient that is used to combine the first feature and the second feature, based on the statistical variable value of the first feature and the statistical variable value of the second feature, 1. An adaptive bio-signal feature combining apparatus comprising:a feature extractor configured to extract first feature values and second feature values from a bio-signal of an object;a stable interval determiner configured to determine at least one stable interval in the bio-signal;a statistical variable calculator configured to calculate a statistical variable value of a first feature and a statistical variable value of a second feature for each of the at least one stable interval based on the first and second feature values extracted from the at least one stable interval; anda feature combiner configured to calculate a integrated combining coefficient that is used to combine the first feature and the second feature, based on the statistical variable value of the first feature and the statistical variable value of the second feature,wherein the feature extractor, the stable interval determiner, the statistical variable calculator, and the feature combiner are included in one or more processors.2. The adaptive bio-signal feature combining apparatus of claim 1 , wherein the bio-signal comprises at least one of an electrocardiogram ( ...

SYSTEM FOR ELECTROCARDIOGRAPHIC POTENTIALS PROCESSING AND ACQUISITION

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally (in the midline) on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and, to a lesser extent, the QRS interval signals indicating ventricular activity in the ECG waveforms. Additionally, the monitor recorder includes an ECG sensing circuit that measures raw cutaneous electrical signals and performs signal processing prior to outputting the processed signals for sampling and storage. 1. A system for electrocardiographic potentials processing and acquisition , comprising: a housing adapted to be coupled to at least one electrocardiographic electrode; and', an electrocardiographic front end circuit under the control of a low-power microcontroller and configured to sense electrocardiographic potentials through the at least one electrocardiographic electrode and to output an analog electrocardiographic signal representative of cardiac activation wave front amplitudes, the electrocardiographic front end circuit comprising a coupling capacitor, an operational amplifier that amplifies voltage of the electrocardiographic potentials, wherein DC bias of the electrocardiographic potentials is automatically centered in a highest performance input region of the operation amplifier due to the coupling capacitor preceding the operational amplifier, the electrocardiographic front circuit further comprising a resistor directly followed by a capacitor that apply an anti-aliasing low pass filter to the electrocardiographic potentials ...

ELECTRONIC DEVICE WITH FLEXIBLE PROCESSING OF COMPRESSIVE SENSING SAMPLES

An electronic device has a transmit circuit and a processing circuit. The processing circuit outputs a first portion of compressive sensing (CS) samples corresponding to a signal segment to another electronic device via the transmit circuit, and selectively outputs a second portion of the CS samples corresponding to the signal segment to another electronic device via the transmit circuit according to a response of another electronic device. In this way, a balance between the compression ratio and the reconstruction quality/speed can be achieved. Moreover, the signal reconstruction performed at the processing circuit may employ a multi-resolution/multi-scale reconstruction scheme to achieve a balance between the dictionary size and the reconstruction quality/speed, and/or may employ a multi-stage reconstruction scheme to achieve a balance between the reconstruction algorithm control setting and the reconstruction quality/speed. In addition, dictionary weighting, online dictionary update, and/or point constraints may be used to improve the reconstruction quality. 1. An electronic device comprising:a transmit circuit; anda processing circuit, arranged to output a first portion of compressive sensing (CS) samples corresponding to a signal segment to another electronic device via the transmit circuit, and further arranged to selectively output a second portion of the CS samples corresponding to the signal segment to said another electronic device via the transmit circuit according to a response of said another electronic device.2. The electronic device of claim 1 , further comprising:a receive circuit;wherein when the processing circuit receives a request for more CS samples corresponding to the signal segment from said another electronic device via the receive circuit, the processing circuit outputs the second portion of the CS samples corresponding to the signal segment to said another electronic device via the transmit circuit; and when the processing circuit does not ...

IN VIVO VISUALIZATION AND CONTROL OF PATHOLOGICAL CHANGES IN NEURAL CIRCUITS

Neurological Disease Mechanism Analysis for Diagnosis, Drug Screening, (Deep) Brain Stimulation Therapy design and monitoring, Stem Cell Transplantation therapy design and monitoring, Brain Machine Interface design, control, and monitoring. 1. A method for cell transplantation design for a living organism , the method comprising:selecting a target cell population including stem cells at various developmental stages and types;modifying a function of the target cell population by causing cells of the target cell population to express light responsive molecules that can controlled with targeted light delivery;transplanting a portion of cells expressing light responsive molecules into a living organism during a cell transplantation;measuring nervous system responses to targeted energy control; anddetermining at least one of neural circuit activity locations and neural circuit activity timings in the living organism.2. The method of claim 1 , further comprising profiling the cells based on differences in measured responses derived from a normal living organism and a diseased living organism to provide a phenotype of disease.3. The method of claim 1 , wherein a cell transplantation location or type is selected to achieve normal brain function.4. The method of claim 1 , wherein the targeted energy control is applied at least one time before claim 1 , during and after the cell transplantation to improve therapeutic outcome.5. The method of claim 1 , wherein measurements are analyzed for resting connectivity and are used to interpret clinical resting state functional neuroimaging data.6. The method of claim 1 , wherein the targeted light delivery includes delivering blue light of approximately 470 nm or yellow light of approximately 580 nm.7. The method of claim 1 , wherein the light responsive molecules include Channelrhodopsin-2 (ChR2) or halorhodopsin (NpHR).8. The method of claim 1 , wherein the measuring is conducted in a parallel processing architecture.9. The method ...

Methods of processing data obtained from medical device

Computerized information processing methods for processing data from a medical device, such as an ingestible probe. In one embodiment, the method includes processing data obtained by the probe so as to produce a plurality of image frames, and further processing the frames to identify a plurality of frames of potential interest to a reviewer based on at least an evaluation of portions of the frame(s) such as pixels or groups of pixels, and using the identified frames to form a preview of the entire data set. In one implementation, the processing of the data includes processing of pixel intensity and/or color (which can be correlated to various physiologic conditions) to help identify the frames of potential interest.

Methods of processing data obtained from medical device

Computerized information processing methods for processing data from a medical device, such as an ingestible probe. In one embodiment, the method includes processing data obtained by the probe so as to produce a plurality of image frames, and further processing the frames to identify a plurality of frames of potential interest to a reviewer, and using the identified frames to form a preview of the entire data set. In another embodiment, pre-stored data (such as e.g., template images) are also provided to the reviewer via a display device.

DEVICE FOR MEASURING BIOLOGICAL SIGNALS

A device for measuring a biological signal, including a cardiovascular signal. The device includes a force sensor positioned to measures a biological signal as a varying force exerted on the device and/or electrical signal sensors that cooperate with each other to measure a biological signal as an electrical signal sensed from the user. The device includes a processor that receives the biological signal, determines, from the biological signal, one or more biological parameters, and generates output representative of the one or more biological parameters. 1. A device for measuring a biological signal , the device comprising:a device body for supporting a user; at least one force sensor positioned to sense a force exerted on the device body, wherein the at least one force sensor measures one of the at least one biological signal as a varying force; or', 'at least two electrical signal sensors positioned to detect electrical signals from the user when the device is in use, wherein the at least two electrical signal sensors cooperate with each other to obtain one of the at least one biological signal from the user via the feet of the user; and, 'one or more sensors for sensing at least one biological signal, the biological signal being a cardiovascular signal, the one or more sensors including at least one ofa processor housed in the device body, the processor coupled to the one or more sensors to receive the at least one biological signal; determine, from the at least one biological signal, one or more biological parameters; and', 'generate output representative of the one or more biological parameters., 'wherein the processor is configured to2. The device of claim 1 , wherein the device body comprises a platform on which the feet of the user are placed when the device is in use.3. A device for measuring a biological signal claim 1 , the device comprising:a device body for supporting a user; at least one force sensor positioned to sense a force exerted on the device ...

User Health Monitoring Method, Monitoring Device, and Monitoring Terminal

A method for monitoring user health, a device for monitoring user health, and a terminal for monitoring user health are provided. A method for monitoring user health includes: acquiring an illuminance of an environment, where the environment is an environment in which a user is currently located; acquiring a first pupil size when the user is located in the environment; correcting the first pupil size on the basis of the illuminance to acquire a second pupil size; comparing the second pupil size with a reference pupil size to determine a change rate of a pupil size of the user; and determining a health state of the user on the basis of the change rate of the pupil size.

Ultra Low Power Platform for Remote Health Monitoring

An apparatus and method is described to sense sparse signals from a medical device using compressed sensing and then transmitting the data for processing in the cloud.

Ambulatory Electrocardiography Monitor Recorder Optimized For Internal Signal Processing

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally (in the midline) on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and, to a lesser extent, the QRS interval signals indicating ventricular activity in the ECG waveforms. Additionally, the monitor recorder includes an ECG sensing circuit that measures raw cutaneous electrical signals and performs signal processing prior to outputting the processed signals for sampling and storage. 1. An ambulatory electrocardiography monitor recorder optimized for internal signal processing , comprising:a wearable housing adapted to be coupled to a pair of electrocardiographic electrodes that are fitted for dermal placement along the sternal midline; and [ a signal lead operable to sense cardiac electrical potentials dermally through one of the electrocardiographic electrodes;', 'a reference lead operable to sense cardiac electrical potentials dermally through the other of the electrocardiographic electrodes;', 'an operational amplifier that amplifies a current of the sensed electrocardiographic potentials;', 'a high pass filter that is applied to the electrocardiographic potentials whose current was amplified by the operational amplifier;', 'a further operational amplifier that amplifies voltage of the electrocardiographic potentials filtered by the high pass filter; and', 'an anti-aliasing filter applied to the electrocardiographic potentials with the amplified voltage prior to the output of the electrocardiographic potentials as ...

SYSTEMS AND METHODS FOR MONITORING AND EVALUATING NEUROMODULATION THERAPY

Systems and methods for informing and evaluating neuromodulation therapy are disclosed herein. A system configured in accordance with embodiments of the present technology can include, for example, a guidewire having a proximal portion, a distal portion configured to be positioned at a target site in a blood vessel of a human patient, and a sensing element positioned along the distal portion. The sensing element can be a pressure sensing element, a flow sensing element, an impedance sensing element, and/or a temperature sensing element. The system can further include a controller configured to obtain one or more measurements related to a physiological parameter of the patient via the sensing element. Based on the measurements, the controller can determine the physiological parameter and compare the parameter to a predetermined threshold. Based on the comparison, the controller and/or the operator can assess the likelihood of the patient benefiting from neuromodulation therapy. 1. A neuromodulation/evaluation system , comprising:a neuromodulation catheter comprising an elongated shaft defining a lumen therethrough, a proximal portion, and a distal portion, wherein the distal portion is configured to deliver therapeutic neuromodulation at a target site in a renal blood vessel of a human patient;a guidewire configured to be slidably positioned within the lumen of the elongated shaft, the guidewire having a distal portion and a sensing element positioned along the distal portion, wherein the sensing element is configured to detect physiological measurements at the target site; and obtain the physiological measurements via the sensing element;', 'determine a physiological parameter based on the physiological measurements;', 'compare the physiological parameter to a predetermined threshold; and', 'based on the comparison, provide an indication to an operator regarding whether the patient has physiological characteristics indicative of a therapeutic response to renal ...

METHODS AND SYSTEMS FOR CHARACTERIZING TISSUE OF A SUBJECT UTILIZING MACHINE LEARNING

Methods and systems for characterizing tissue of a subject include acquiring and receiving data for a plurality of time series of fluorescence images, identifying one or more attributes of the data relevant to a clinical characterization of the tissue, and categorizing the data into clusters based on the attributes such that the data in the same cluster are more similar to each other than the data in different clusters, wherein the clusters characterize the tissue. The methods and systems further include receiving data for a subject time series of fluorescence images, associating a respective cluster with each of a plurality of subregions in the subject time series of fluorescence images, and generating a subject spatial map based on the clusters for the plurality of subregions in the subject time series of fluorescence images. The generated spatial maps may then be used as input for tissue diagnostics using supervised machine learning. 1. A method for classifying tissue of a subject , the method comprising ,at a computer system having one or more processors:receiving time series data of fluorescence from tissue of the subject, the time series data related to perfusion of the tissue and the time series data being or having been captured by an image capture system; andclassifying a plurality of regions in the time series data, wherein the plurality of regions are classified using one or more machine learning models.2. The method of claim 1 , wherein the regions are chosen based on one or more attributes of the data.3. The method of claim 1 , wherein the regions are classified based on a predicted tissue condition of the region.4. The method of claim 3 , wherein the predicted tissue condition comprises inflammation claim 3 , malignancy claim 3 , abnormality or disease.5. The method of claim 1 , wherein classifying the plurality of regions in the time series data comprises providing a risk estimate for the plurality of regions.6. The method of claim 1 , wherein the ...

MICROCONTROLLER FOR RECORDING AND STORING PHYSIOLOGICAL DATA

A microcontroller for recording and storing physiological data includes an analog-to-digital converter for converting analog physiological sensor signals to digital signals, a sample buffer for holding a temporal sequence of the digital signals, a central processing unit (CPU), and a non-volatile memory. The non-volatile memory includes (i) a code storage encoding machine-readable data compression instructions that, when executed by the CPU, control the CPU to (a) transform the temporal sequence of the digital signals to produce transformed physiological data characterized by a set of transformation coefficients and (b) compress the set of transformation coefficients to generate compressed physiological data, and (ii) a data storage configured to contain several different instances of the compressed physiological data respectively associated with several different instances of the temporal sequence of the digital signals. 1. A microcontroller for recording and storing physiological data , comprising:an analog-to-digital converter (ADC) for converting analog physiological sensor signals to digital signals;a sample buffer for holding a temporal sequence of the digital signals;a central processing unit (CPU); anda non-volatile memory including:(i) a code storage encoding machine-readable data compression instructions that, when executed by the CPU, control the CPU to (a) transform the temporal sequence of the digital signals to produce transformed physiological data characterized by a set of transformation coefficients and (b) compress the set of transformation coefficients to generate compressed physiological data, and(ii) a data storage configured to contain several different instances of the compressed physiological data respectively associated with several different instances of the temporal sequence of the digital signals.2. The microcontroller of claim 1 , characterized by a current draw no greater than 10 milliamperes and a clock rate no greater than 32 ...

METHOD, APPARATUS, SYSTEM AND COMPUTER PROGRAM FOR PROCESSING AN ALMOST-PERIODIC INPUT SIGNAL

Examples relate to a method, an apparatus and a computer program for processing an almost-periodic input signal comprising a plurality of signal portions of varying duration, and to a system comprising such an apparatus and a visual output device. The plurality of signal portions are characterized by a common signal shape. The method comprises assigning the plurality of signal portions to a plurality of sets of signal portions. Each set of signal portions comprises two or more signal portions. The method comprises adjusting a duration of at least a subset of the signal portions such that the signal portions of a set have the same duration. The method comprises superimposing the two or more signal portions of a set within a combined output signal. 1. A method for processing an almost-periodic input signal comprising a plurality of signal portions of varying duration , the plurality of signal portions being characterized by a common signal shape , the method comprising:assigning the plurality of signal portions to a plurality of sets of signal portions, each set of signal portions comprising two or more signal portions;adjusting a duration of at least a subset of the signal portions such that the signal portions of a set have the same duration; andsuperimposing the two or more signal portions of a set within a combined output signal.2. The method according to claim 1 , wherein the signal portions of a set occur sequentially within the input signal.3. The method according to claim 1 , wherein the adjusted duration of the signal portions is the same for the plurality of signal portions.4. The method according to claim 1 , wherein the sets of signal portions comprise at least a first set and a second set claim 1 , the signal portions of the first set having an adjusted duration being different from an adjusted duration of the signal portions of the second set.5. The method according to claim 1 , wherein the adjusted duration of the signal portions of a set is based on an ...

ELECTROENCEPHALOGRAM MONITORING SYSTEM AND METHOD OF USE OF THE SAME

A system and method for monitoring a subject are provided. In some aspects, a provided electroencephalogram (“EEG”) system includes an electrode patch assembly configured to attach to a subject's skin, the assembly including a flexible circuit layer having electrical leads configured to acquire EEG signals from the subject, the flexible circuit layer having a shielding layer configured to substantially reduce a coupling of the plurality of electrical leads to external sources of noise, and a holder to which the flexible circuit layer is secured. The system also includes an electronics module removably coupled to the holder and configured to engage electrical contacts on the flexible circuit layer, the module including a front-end module configured to perform an active noise cancellation process on the acquired EEG signals and generate digitized data using noise cancelled signals, and a processor configured to transmit the digitized data using a wireless communication module. 1. An electroencephalogram (“EEG”) monitoring system comprising: a flexible circuit layer having a plurality of electrical leads configured to acquire EEG signals from the subject, the flexible circuit layer having a shielding layer configured to substantially reduce a coupling of the plurality of electrical leads to external sources of noise, and', 'a holder to which the flexible circuit layer is secured;, "an electrode patch assembly configured to attach to a subject's skin, the electrode patch assembly comprising:"} a front-end module configured to perform an active noise cancellation process on the acquired EEG signals and generate digitized data using noise cancelled signals;', 'a processor configured to transmit the digitized data using a wireless communication module; and, 'an electronics module removably coupled to the holder and configured to engage electrical contacts on the flexible circuit layer, the electronics module comprisingan external device configured to receive and analyze ...

SYSTEM FOR IN-VIVO MEASUREMENT OF AN ANALYTE CONCENTRATION

The analyte concentration, such as glucose, in a human or animal body is measured with an implantable sensor that generates measurement signals. The measurement signals are compressed through statistical techniques to produced compressed measurement data that can is easier to process and communicate. A base station carries the implantable sensor along with a signal processor, memory, and a transmitter. A display device is also disclosed that can receive the compressed measurement data from the base station for further processing and display. 1. (canceled)2. A system for in-vivo measurement of an analyte concentration in a human or animal body , comprising:at least one implantable sensor configured to generate measuring signals correlated to the analyte concentration to be measured; a signal processor configured to execute instructions for processing the measuring signals to produce measurement data; and', 'a transmitter configured for wireless transmission, wherein the base station is adapted such that the transmission of data is initiated by receiving a control signal wirelessly transmitted from the transmitter; and, 'a base station operably coupled to the at least one implantable sensor and including a potentiostat configured to supply voltage to the at least one implantable sensor, the base station comprisinga receiver operably coupled to the base station and configured to receive data from the base station.3. The system of claim 2 , wherein the control signal includes a characteristic identifier used by the receiver to identify the control signal with respect to the base station.4. The system of claim 2 , wherein the base station is configured to transmit a characteristic identifier signal indicative of the base station.5. The system of claim 2 , wherein the control signal initiating transmission of the measuring data is transmitted by a display device as part of the receiver.6. The system of claim 2 , wherein the at least one implantable sensor is part of a ...

Monitor recorder optimized for electrocardiographic signal processing

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally (in the midline) on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and, to a lesser extent, the QRS interval signals indicating ventricular activity in the ECG waveforms. Additionally, the monitor recorder includes an ECG sensing circuit that measures raw cutaneous electrical signals and performs signal processing prior to outputting the processed signals for sampling and storage.

System and Method for Electrocardiographic Data Signal Gain Determination With the Aid of A Digital Computer

In one embodiment, ECG data collected during the long-term monitoring are compressed through a two-step compression algorithm executed by an electrocardiography monitor. Minimum amplitude signals may become indistinguishable from noise if overly inclusive encoding is employed in which voltage ranges are set too wide. The resulting ECG signal will appear “choppy” and uneven with an abrupt slope. The encoding used in the first stage of compression can be dynamically rescaled on-the-fly when the granularity of the encoding is too coarse. In a further embodiment, offloaded ECG signals are automatically gained as appropriate on a recording-by-recording basis to preserve the amplitude relationship between the signals. Raw decompressed ECG signals are filtered for noise content and any gaps in the signals are bridged. An appropriate signal gain is determined based on a statistical evaluation of peak-to-peak voltage (or other indicator) to land as many ECG waveforms within a desired range of display. 1. A method for electrocardiographic data signal gain determination with the aid of a digital computer , comprising the steps of:receiving, by a download station from an ambulatory monitor recorder interfaced to the download station, compression codes representing cutaneous action potentials recorded by the monitor recorder;decompressing by the download station the compression codes into a time series that comprises a digital representation of a raw electrocardiography (“ECG”) signal;identifying by the download station cardiac waveforms within the time series falling within one or more temporal windows and measuring peak-to-peak voltages in the identified cardiac waveforms; andstatistically representing a correlation between the peak-to-peak voltages on the download station and determining based on the statistical representation a signal gain that places the correlation between the peak-to-peak voltages within a range preferred for visualizing the cardiac waveforms.2. A method ...

SYSTEMS AND METHODS FOR ATRIAL ARRHYTHMIA DETECTION

Systems and methods for detecting atrial arrhythmias such as atrial tachyarrhythmia (AT) are described herein. An AT detection system may include a heart rate detector circuit configured to detect, from a physiological signal, representative ventricular heart rates within heart rate analysis windows. An atrial tachyarrhythmia detector circuit may perform an initial rate detection using a first ventricular heart rate statistic generated from the representative ventricular heart rates, and to perform a sustained arrhythmia detection using one or more second ventricular heart rate statistics generated within a second plurality of heart rate analysis windows during a specific duration. An AT event is detected if the second ventricular heart rate statistics satisfy a specific condition throughout the specific duration. The AT detection system may include an output unit that may output the detected AT to a user or a process. 1. A system for detecting atrial tachyarrhythmias , comprising: generate a first ventricular heart rate statistic using a plurality of representative ventricular heart rates determined within a first plurality of heart rate analysis windows;', 'generate one or more second ventricular heart rate statistics during a specific duration, the one or more second ventricular heart rate statistics each generated from a plurality of representative ventricular heart rates determined within a second plurality of heart rate analysis windows; and', 'detect an atrial tachyarrhythmia (AT) event in response to the first ventricular heart rate statistic satisfying a first condition and the one or more second ventricular heart rate statistics satisfying a second condition throughout the specific duration., 'an atrial tachyarrhythmia detector circuit configured to2. The system of claim 1 , comprising a therapy circuit configured to generate and deliver a cardiac therapy or a neural therapy in response to the detection of the AT.3. The system of claim 1 , wherein each of ...

Wireless cardioresonance stimulation

An apparatus for the cardio-synchronised stimulation of skeletal or smooth muscle, but excluding the heart muscles, in a counterpulsation mode of a patient. The apparatus comprises an active and a passive electrode for attachment to said patient, a signal processor having a configuration input for varying a time delay associated with counterpulsation mode stimulation, and a sensing system for sensing information relating to the performance of the patient's heart and for transmission of information signals to said signal processor, said signal processor producing control signal information relating to stimulation signals to be applied to said active electrode in a counterpulsation mode, a stimulation signal generator Associated with said active electrode for generating stimulation signals, wireless transmission means for transmitting said control signal information from said signal processor to said stimulation signal generator whereby said stimulation signal generator applies stimulation signals to said active electrode in accordance with said signal information.

Monitor recorder optimized for electrocardiographic potential processing

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally (in the midline) on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and, to a lesser extent, the QRS interval signals indicating ventricular activity in the ECG waveforms. Additionally, the monitor recorder includes an ECG sensing circuit that measures raw cutaneous electrical signals and performs signal processing prior to outputting the processed signals for sampling and storage.

COMPACT LOW-POWER RECORDING ARCHITECTURE FOR MULTICHANNEL ACQUISITION OF BIOLOGICAL SIGNALS AND METHOD FOR COMPRESSING SAID BIOLOGICAL SIGNAL DATA

The present invention relates to a method for compressing signal data of a plurality of biological signals captured by a plurality of implanted measurement devices. The present invention further relates to an implantable sensor configured to carry out said method of compression. The present invention also concerns a method for recovering the plurality of biological signals from the compressed data as well as a system including a plurality of implantable sensors, a transmitter, a receiver and a processor configured to recover the plurality of biological signals from the compressed data. 1. Method for compressing a plurality of biological signals provided by a plurality of measurement devices through a plurality of measuring channels , the method comprising the steps of:{'sup': 'd×N', 'forming a multichannel signal matrix XεRfrom the plurality of biological signals where d is a dimension of the biological signal in each channel and in a time-window and N is the number of channels, R meaning a set of real numbers;'}obtaining a multichannel measurement vector Y by acquiring M=p/d measurements from each column of the multichannel signal matrix X, to acquire M measurements at each time-window from all channels, where p< Подробнее

In vivo visualization and control of patholigical changes in neural circuits

Neurological Disease Mechanism Analysis for Diagnosis, Drug Screening, (Deep) Brain Stimulation Therapy design and monitoring, Stem Cell Transplantation therapy design and monitoring, Brain Machine Interface design, control, and monitoring.

SYSTEM AND METHOD FOR EARLY DETECTION OF MILD COGNITIVE IMPAIRMENT IN SUBJECTS

This disclosure relates generally to detection of mild cognitive impairments in subjects. The method and system proposed provides a continuous/seamless monitoring platform for MCI detection in subjects by continuously monitoring routine activities of subjects (Activities of Daily Living (ADL)) in a smart environment using plurality of passive, unobtrusive, binary, unobtrusive non-intrusive sensors embedded in living infrastructure. The proposed method and system detects symptoms of MCI at the onset of the disease, while also addressing issue of sensor failures that causes gaps in the data. The collected sensor data is pre-processed in several stages which includes which includes pre-processing of sensor data, behavior deviation detection, and abnormality detection and so on. Further, the disclosure also proposes an autoencoder based technique, to reduce the dimension of the data to find personalized deviations in behavior of a subject which is used to detect if a subject could be a potential case of MCI. 1. A processor-implemented method for detection of Mild Cognitive Impairment(MCI) in a subject , comprising:{'b': '302', 'receiving sensor data from a plurality of sensors, wherein the received sensor data indicates Activities of Daily Living (ADL) pertaining to a subject for a specific time interval ();'}{'b': '304', 'substituting, by using Long Short-Term Memory (LSTM), corrupt sensor data in the received sensor data with correct sensor data to generate corrected sensor data, wherein the corrupt sensor data is substituted with the correct sensor data based on a learning pattern and historical data stored in a database ();'}{'b': '306', 'generating a semantic vector representation of the corrected sensor data, wherein the semantic vector representation comprises a plurality of sub-vectors, wherein each of the plurality of sub-vectors comprise of a subset of the corrected sensor data of a pre-determined time interval ();'}{'b': '308', 'optimizing, by using an auto ...

PHYSIOLOGICAL ACOUSTIC MONITORING SYSTEM

An acoustic monitoring system has an acoustic front-end, a first signal path from the acoustic front-end directly to an audio transducer and a second signal path from the acoustic front-end to an acoustic data processor via an analog-to-digital converter. The acoustic front-end receives an acoustic sensor signal responsive to body sounds in a person. The audio transducer provides continuous audio of the body sounds. The acoustic data processor provides audio of the body sounds upon user demand. 17.-. (canceled)8. A method of generating synthetic heart sounds audio responsive to a signal detected by an optical sensor attached to a patient , the method comprising:processing, at a patient monitor, a signal from an optical sensor responsive to pulsatile blood flow at a tissue site of the patient;comparing features in the signal with sound signatures corresponding to physiological sounds stored in a first data repository;determining a first plurality of sounds to include a synthetic heart sounds audio based on the comparison of the features in the signal with sound signatures;mixing the first plurality of sounds with white noise; andgenerating the synthetic heart sound audio based on the mixing of the first plurality of sounds with the white noise.9. The method of claim 8 , further comprising generating a plurality of digital tags based on the comparison of the signal with sound signatures.10. The method of claim 9 , further comprising transmitting the plurality of digital tags over a network in lieu of the processed signal claim 9 , thereby reducing bandwidth required for network transmission.11. The method of claim 10 , wherein the synthetic heart sound is generated on a computing system separate from the patient monitor.12. The method of claim 11 , wherein the computing system comprises a mobile computing device.13. The method of claim 12 , wherein the physiological sounds comprise heart beats claim 12 , pulsatile blood flow claim 12 , and tracheal air flow.14. The ...

SYSTEMS AND METHODS FOR MONITORING AND EVALUATING NEUROMODULATION THERAPY

Systems and methods for informing and evaluating neuromodulation therapy are disclosed herein. A system configured in accordance with embodiments of the present technology can include, for example, a guidewire having a proximal portion, a distal portion configured to be positioned at a target site in a blood vessel of a human patient, and a sensing element positioned along the distal portion. The sensing element can be a pressure sensing element, a flow sensing element, an impedance sensing element, and/or a temperature sensing element. The system can further include a controller configured to obtain one or more measurements related to a physiological parameter of the patient via the sensing element. Based on the measurements, the controller can determine the physiological parameter and compare the parameter to a predetermined threshold. Based on the comparison, the controller and/or the operator can assess the likelihood of the patient benefiting from neuromodulation therapy. 125-. (canceled)26. A method for evaluating patients for neuromodulation therapy , the method comprising:delivering a distal portion of a neuromodulation catheter assembly to a target site within a renal blood vessel of a human patient, wherein the distal portion of the neuromodulation catheter assembly includes a sensing element;obtaining, via the sensing element, a first measurement related to a first hemodynamic parameter of the patient and a second measurement related to a second hemodynamic parameter of the patient;utilizing the first measurement and the second measurement, determining a physiological parameter indicative of patient responsiveness to renal neuromodulation therapy;comparing the physiological parameter to a predetermined threshold; andindicating, based on the comparison, a likelihood of the patient benefitting from renal neuromodulation therapy.27. The method of claim 26 , wherein determining the physiological parameter comprises determining a renal wave speed.28. The ...

Method and System to Equalizing Cardiac Cycle Length Between Map Points

A method and system are provided for equalizing cycle lengths among different map points during mapping studies. Different embodiments may be applicable to different circumstances and physiological settings. A compression embodiment encapsulates the entire behavior of a map point throughout its native cycle length. A truncation and rotation embodiment, and an extension and rotation embodiment allow for a more physiologically-relevant processing of the motion data. 1. A method to analyze data of a region of interest in connection with cardiac mapping , the method comprising:utilizing one or more processors:acquiring data recordings of motion data with a navigation system motion sensor in contact with the region of interest;determining cycle lengths associated with cardiac events in the data recordings; andequalizing cycle lengths among different map points for a region of interest.2. The method of claim 1 , wherein the equalizing comprises performing at least one of i) a compression process to encapsulate an entire behavior of a map point throughout a native cycle length; ii) a truncation and rotation process; and iii) an extension and rotation process.3. The method of claim 1 , wherein the determining operation includes determining a plurality of cycle lengths in connection with a first map point.4. The method of claim 3 , wherein the equalizing operation includes identifying a select cycle length from the plurality of cycle lengths and down-sampling the motion data for the map points throughout the cycle lengths to produce a down sampled motion data set having a same number of motion data samples for each of the map points.5. The method of claim 1 , wherein the equalizing operation generates an equalized motion data set having a common number of motion data samples for each map point.6. The method of claim 1 , wherein the equalizing operation includes identifying a select cycle length from the cycle lengths and modifying the motion data to have a common number of ...

MODELLING AND EXTRACTING INFORMATION FROM A PHOTOPLETHYSMOGRAPHY, PPG, SIGNAL

A method of modelling and extracting information from a photoplethysmography, PPG, signal comprises decomposing and modelling () the PPG signal as a long-term periodic component and a short-term periodic component. The method further comprises summarizing () the information contained in the PPG signal, based on a distribution of fitted parameters of the modelled long-term and short-term periodic components.

BALLISTIC BODY ARMOR DAMAGE SENSING SYSTEM AND RELATED METHODS

A ballistic body armor damage sensing system having a body armor ballistic plate including at least one ballistic layer and at least one damage sensing layer coupled to the at least one ballistic layer and including a plurality of electrically conductive members which are positioned throughout said damage sensing layer, wherein when a fired projectile impacts the body armor ballistic plate and damages one or more of the electrically conductive members, the damaged electrically conductive members exhibit a measurable change in electrical resistance. 1. A ballistic body armor damage sensing system , comprising:a body armor ballistic plate including at least one ballistic layer; andat least one damage sensing layer coupled to the at least one ballistic layer and including a plurality of electrically conductive members, positioned throughout said damage sensing layer,wherein when a fired projectile impacts the body armor ballistic plate and damages one or more of the electrically conductive members, the damaged electrically conductive members exhibit a measurable change in electrical resistance.2. The ballistic body armor damage sensing system of claim 1 , further comprising:a detecting device that detects the change in electrical resistance of the damaged electrically conductive members and generates a signal corresponding to the change in electrical resistance.3. The ballistic body armor damage sensing system of claim 1 , wherein the electrically conductive members include carbon fibers.4. The ballistic body armor damage sensing system of claim 1 , wherein the electrically conductive members are arranged unidirectionally.5. The ballistic body armor damage sensing system of claim 1 , wherein the at least one damage sensing layer includes a first damage sensing layer having a first plurality of electrically conductive members arranged unidirectionally in a first member direction claim 1 , and a second damage sensing layer having a second plurality of electrically ...

CLOSE PROXIMITY COMMUNICATION DEVICE AND METHODS

Disclosed herein are methods and systems for receiving an encoded data packet, one or more activation commands, and a communication identifier, decoding the received data packet, validating the decoded received data packet, and executing one or more routines associated with the respective one or more activation commands. 136-. (canceled)37. A method , comprising:establishing a communication range between a transmitter unit and a receiver unit by placing the receiver unit within a predetermined distance from the transmitter unit;transmitting, from the receiver unit, a plurality of encoded data packets to the transmitter unit when the receiver unit is within the predetermined distance, the plurality of encoded data packets including a plurality of close proximity commands, wherein the transmitter unit decodes and validates the encoded data packets and executes a plurality of routines associated with the plurality of close proximity commands, the executed plurality of routines including a power on routine and a sensor initiation routine, the sensor initiation routine causing transmission of the transmitter's identification information to the receiver unit; andreceiving, by the receiver unit, analyte level information from the transmitter unit.38. The method of claim 37 , wherein the transmitter unit decodes the received plurality of data packets using Manchester decoding.39. The method of claim 37 , wherein the plurality of routines are associated with the operation of an analyte monitoring device.40. The method of claim 37 , further comprising transmitting claim 37 , from the receiver unit claim 37 , an additional encoded data packet to the transmitter unit when the receiver unit is within the predetermined distance claim 37 , the additional encoded data packet including an additional close proximity command and the identification information claim 37 , wherein the transmitter unit decodes and validates the additional encoded data packet and executes a data transfer ...

ULTRA LOW POWER PLATFORM FOR REMOTE HEALTH MONITORING

An apparatus and method is described to sense sparse signals from a medical device using compressed sensing and then transmitting the data for processing in the cloud. 1an amplifier;a compressed sensing analog-to-digital conversion block coupled to the amplifier; the compressed sensing analog-to-digital conversion block relying upon an inherent sparsity and incoherence of an input signal received from the amplifier, without prior knowledge of the input signal, for sampling of the input signal below the Nyquist rate to reduce power;a post processor coupled to the compressed sensing analog-to-digital conversion block;a transmitter coupled to the post processor; andan antenna.. A sensor block for collecting data from a human patient, comprising: This application claims the benefit under 35 USC 119(e) to U.S. Provisional Patent Application Ser. No. 61/852,967, filed on Mar. 26, 2013 and titled “A compressed sensor platform for remote health monitoring,” which is incorporated by reference herein.The present invention relates to the field of sensor implementations. In particular, an apparatus and method is described to sense sparse signals from a medical device using compressed sensing and then transmitting the data for processing in the cloud.A typical prior art sensor network used for remote health monitoring is depicted in . The two main components are sensor block and computing device , which here is an intelligent backend device. Sensor block typically is a medical device for obtaining data from a patient, such as an electroencephalograph, cardiotocograph, or other device. Sensor block comprises an amplifier (), an analog-to-digital (ADC) conversion block , a post processor , a transmitter , and an antenna . It is to be understood that other sensor blocks similar to sensor block can be used with the same computing device . For brevity's sake, only sensor block is depicted in .Computing device may be a PC, server or any product with processing capabilities. Sensor ...

SYSTEMS AND METHODS OF PATIENT DATA COMPRESSION

A system including a medical device is provided. The medical device includes at least one sensor configured to acquire first data descriptive of a patient, first memory storing a plurality of templates, and at least one processor coupled to the at least one sensor and the first memory. The at least one processor is configured to identify a first template of the plurality of templates that is similar to the first data, to determine first difference data based on the first template and the first data, and to store the first difference data in association with the first template. The system may further include the programmable device. 122-. (canceled)23. A system comprising an ambulatory medical device comprising:at least one sensor configured to acquire high resolution electrocardiogram (ECG) data descriptive of a patient;at least one network interface; and transmit, via the at least one network interface on a first data stream, low resolution ECG data descriptive of the high resolution ECG data;', 'receive, via the at least one network interface, an indication of a portion of the low resolution ECG data that is of interest;', 'identify a portion of the high resolution ECG data that is of interest based on the indication of the portion of the low resolution ECG data that is of interest; and', 'transmit, via the at least one network interface on a second data stream, the portion of the high resolution ECG data that is of interest., 'at least one processor coupled to the at least one sensor and the at least one network interface and configured to'}24. The system of claim 23 , wherein the portion of the low resolution ECG data that is of interest is descriptive of an arrhythmia.25. The system of claim 23 , wherein the ambulatory medical device further comprises at least one treatment electrode coupled to the at least one processor and configured to discharge one or more therapeutic shocks to a body of the patient.26. The system of claim 23 , wherein the at least one ...

Monitor Recorder-Implemented Method for Electrocardiography Value Encoding and Compression

A monitor recorder-implemented method for electrocardiography value encoding and compression is provided. A plurality of codes are maintained, each associated with an electrocardiography value range. A series of electrocardiography values is obtained. A serial accumulator is set to a predetermined value; each of the obtained electrocardiography values from the series of the obtained electrocardiography values is processed, including: performing a mathematical operation on that obtained electrocardiography value and the serial accumulator; identifying the code within the range associated with which a result of the mathematical operation falls; representing that obtained electrography value with the identified code; and adjusting the serial accumulator by a value derived from the range associated with the identified code. Each of the represented codes are into a sequence in a non-volatile memory. 1. A monitor recorder-implemented method for electrocardiography value encoding and compression , comprising the steps of:maintaining a plurality of codes, each associated with an electrocardiography value range;obtaining a series of electrocardiography values;setting a serial accumulator to a predetermined value; performing a mathematical operation on that obtained electrocardiography value and the serial accumulator;', 'identifying the code within the range associated with which a result of the mathematical operation falls;', 'representing that obtained electrography value with the identified code; and', 'adjusting the serial accumulator by a value derived from the range associated with the identified code; and, 'processing each of the obtained electrocardiography values from the series of the obtained electrocardiography values, comprising the steps ofwriting each of the represented codes into a sequence into a non-volatile memory,wherein the steps are performed by a monitor recorder.2. A method according to claim 1 , further comprising:setting a further range that is ...