Cardiovascular Testing Patents (Class 600/479)
  • Patent number: 10765407
    Abstract: An ultrasound diagnosis apparatus includes an ultrasound transducer, an evaluation value acquisition unit, a determination unit, and an output unit. The evaluation value acquisition unit obtains an evaluation value for evaluating the function of tissue including a predetermined site based on biological information acquired for a predetermined period of time by the ultrasound transducer. The determination unit determines whether the function of the tissue is abnormal based on the evaluation value. The output unit outputs information based on a result of determination by the determination unit.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: September 8, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Hitoshi Yamagata, Yasuhiko Abe
  • Patent number: 10736575
    Abstract: The disclosure provides a heart rate monitor (HRM) circuit. The HRM circuit includes an analog front end (AFE). The AFE receives a Photoplethysmographic (PPG) signal, and generates a fine PPG signal. A motion cancellation circuit is coupled to the AFE, and receives the fine PPG signal and an accelerometer signal. The motion cancellation circuit subtracts the accelerometer signal from the fine PPG signal to generate a coarse heart rate. A peak detector is coupled to the motion cancellation circuit and the AFE, and generates an instantaneous heart rate. A filter is coupled to the peak detector, and generates an estimated heart rate from the instantaneous heart rate, the estimated heart rate is provided as a feedback to the peak detector.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: August 11, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sarma Sundareswara Gunturi, Sunil Chomal
  • Patent number: 10729381
    Abstract: A photoplethysmogram system includes a plurality of sensors, each sensor capable of providing a sensor signal, and an adaptive filter capable of receiving a first input signal and computing an output. The photoplethysmogram system is capable of operating the filter in sequential stages, such that at each different stage the first input signal is a different sensor signal.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: August 4, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Tarkesh Pande, David Patrick Magee
  • Patent number: 10726546
    Abstract: A network is machine trained to estimate flow by spatial location based on input of anatomy information. A medical scan of tissue may be used to generate flow information without the delay or difficulty of performing a medical scan configured for flow imaging or CFD. Anatomy imaging is used to provide flow estimates with the speed provided by the machine-learned network.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: July 28, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Viorel Mihalef, Saikiran Rapaka, Yefeng Zheng, Puneet Sharma
  • Patent number: 10702211
    Abstract: An integrated window for a photosensor for use in an electronic device has first and second transparent regions separated by an opaque region. The first transparent region allows a transmitter to emit light out of the housing of the electronic device and the second transparent region allows a receiver to receive light through the housing. The opaque region is disposed between the first and second transparent regions to isolate them from one another such that the transmitted light is isolated from the received light.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: July 7, 2020
    Assignee: Apple Inc.
    Inventors: Adam T. Clavelle, Maegan K. Spencer, Jaden Alyssa Barney, Dale N. Memering, Ueyn L. Block, Paul D. Mannheimer
  • Patent number: 10674923
    Abstract: Provided according to embodiments of the invention are methods of monitoring the direction of blood flow that include processing with a computer photoplethysmography (PPG) signal streams from a sensor array on a body site of the individual to determine the direction and/or velocity of the blood flow at the body site of the individual. In some embodiments, direction of the blood flow at the body site is determined by the phase difference between at least three PPG signal streams from the sensor array, wherein the at least three PPG signal streams are generated from emissions of the at least three emitters.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 9, 2020
    Assignees: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED, XHALE ASSURANCE, INC.
    Inventors: Richard J. Melker, Sean Cohen
  • Patent number: 10632312
    Abstract: Disclosed herein are portable and integrated modules and devices for non-intrusive neuromodulation and monitoring of heart function, and methods of operation thereof. The modules and devices include a monitoring unit, an electrical stimulation inducing unit, and three electrodes, such that one of the electrodes is dual-function, being controllably utilized for neuromodulation or for monitoring of heart function.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: April 28, 2020
    Assignee: ZIV HEALTHCARE LTD.
    Inventor: Amos Ziv
  • Patent number: 10617473
    Abstract: A system for estimating post-virtual stenting fractional flow reserve (FFR) capable of: receiving geometrical parameters of a blood vessel segment, the geometrical parameters comprising first, second and third geometrical parameters; with a proximal end as a reference point, deriving a reference lumen diameter function and calculating a pre-virtual stenting percent diameter stenosis based on the above geometrical parameters and the distance from position along the segment to the reference point; receiving a virtual stenting location; calculating a geometrical parameter of a virtual lumen of the post virtually-stented segment, deriving a post-virtual stenting geometrical parameter difference function and calculating a percent diameter stenosis based on the third geometrical parameter, the virtual stenting location and the reference lumen diameter function; taking derivative difference functions of the post-virtual stenting geometrical parameter difference function in multiple scales; and obtaining FFR based on
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: April 14, 2020
    Assignee: PULSE MEDICAL IMAGING TECHNOLOGY (SHANGHAI) CO., LTD
    Inventors: Shengxian Tu, Miao Chu, Bo Xu, Bing Liu, Yazhu Chen
  • Patent number: 10623707
    Abstract: A system (100) for use in retinal image projection comprising at least first (130) and second (140) image projecting units and an eye projection optical module (120). The projecting units (130, 140) are configured to project at least first and second image portions respectively. The eye projection optical module (120) is optically coupled to the image projecting units (130, 140) and is configured to combine optical paths of projection of the at least first (130) and second (140) image projecting units along a general optical path to project a combined image of the first and second image portions on a retina (12, 14) of a user's eye (10).
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 14, 2020
    Assignee: EYEWAY VISION LTD.
    Inventor: Boris Greenberg
  • Patent number: 10588586
    Abstract: A system and method includes reception of a first image of a blood vessel, reception of a second image of the blood vessel, determination of a first size of a region of the blood vessel based on the first image, determination of a second size of the region of the blood vessel based on the second image, and calculation of a parameter of the blood vessel based on the first size and the second size.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 17, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Hongxuan Zhang
  • Patent number: 10575737
    Abstract: An OCI medical device includes a coherent light source, a light sensor, a first processing unit adapted to calculate OCI Data from the light sensor, a control unit which allows taking or loading of at least one Reference OCI Value, a second processing unit adapted to calculate the Intra-Individual Relative Assessment of the OCI Data of an Imaging Zone and the at least one OCI Reference Value, and display means adapted to show at least one Relative OCI Value. Uses and a method for assessing the blood flow of a body region use OCI imaging and include an Intra-Individual Relative Assessment between OCI Data of the Imaging Zone and at least one Reference OCI Value.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: March 3, 2020
    Assignee: Novadaq Technologies ULC
    Inventors: Marc Andre, Michael Friedrich, Tyler Thacher, Andrey Naumenko, Romain Farkas
  • Patent number: 10551312
    Abstract: An optical sensor includes light sources configured to emit light, a substrate on which the light sources are mounted, the substrate comprising holes in regions on which the light sources are mounted, and a first photodetector configured to receive a first light emitted from a front surface of each of the light sources, the first light being reflected or scattered from an object. The optical sensor further includes at least one second photodetector configured to receive a second light emitted from a rear surface of each of the light sources, the second light passing through the holes corresponding to the light sources.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeong Seok Jang, Jae Wook Shim, Hyun Seok Moon, Hyo Sun Hwang
  • Patent number: 10548533
    Abstract: A method and system for removing corruption in photoplethysmogram (PPG) signals for monitoring cardiac health of patients is provided. The method is performed by extracting photoplethysmogram signals from the patient, detecting and eliminating corruption caused by larger and transient disturbances in the extracted photoplethysmogram signals, segmenting photoplethysmogram signals post detection and elimination of corruption caused by larger and transient disturbances, identifying of inconsistent segments from the segmented photoplethysmogram signals, detecting anomalies from the identified inconsistent segments of the photoplethysmogram signals, analysing the detected anomalies of the photoplethysmogram signals and identifying photoplethysmogram signal segments corrupted by smaller and prolonged disturbances.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: February 4, 2020
    Assignee: Tata Consultancy Services Limited
    Inventors: Arijit Ukil, Soma Bandyopadhyay, Chetanya Puri, Arpan Pal, Kayapanda Mandana
  • Patent number: 10552986
    Abstract: Embodiments of the present disclosure include receiving a sequence of images of a face of a user. A three-dimensional (3D) model of the face is generated and 3D facial points associated with flat facial surfaces are determined. The 3D facial points are projected onto a screen coordinate plane to produce a two-dimensional (2D) facial points. A hue is determined for each pixel associated with each of the 2D facial points in each image. A mean hue value is determined for each image. A spectral representation of a variation in each mean hue value across the sequence of images is determined. A frequency of a main hue is determined based on a largest weight of the variation in each mean hue value. A heart rate of the user is determined based on facial blood circulation according to the frequency of the main hue, and an activity recommendation is displayed.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: February 4, 2020
    Assignee: Banuba Limited
    Inventors: Viachaslau Arkhipau, Yury Hushchyn, Aliaksei Sakolski, Dzmitry Kachatkou
  • Patent number: 10531923
    Abstract: Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: January 14, 2020
    Assignee: HeartFlow, Inc.
    Inventor: Charles A. Taylor
  • Patent number: 10529071
    Abstract: A facial skin mask may be generated based on isolating a head part in a captured image, removing a first pixel that is indicative of non-skin from the head part in the captured image, and removing a second pixel that is indicative of having a high velocity from the head part in the captured image. Heart rate may be detected based on the change of color of the pixels of the generated facial skin mask.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: January 7, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Beibei Cheng, Benjamin William Walker, Jonathan Ross Hoof, Daniel Kennett, Anis Ahmad
  • Patent number: 10524736
    Abstract: The medical system and method detect arrhythmic events. The medical system includes at least one processor programmed to perform the method. A photoplethysmogram (PPG) signal generated using a PPG probe positioned on or within a patient and a pulse signal generated using an accelerometer positioned on or within the patient received. Features from the PPG signal are extracted to PPG feature vectors, and features are extracted from the pulse signal to pulse feature vectors. The PPG feature vectors are correlated with the pulse feature vectors, and correlated PPG feature vectors and correlated pulse feature vectors are evaluated to detect arrhythmic events.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: January 7, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Brian David Gross
  • Patent number: 10404776
    Abstract: A method for extending a functionality of a computing device programmed to obtain physiological measurements from a patient includes: registering, at the computing device, a plug-in module, the plug-in module providing additional functionality for the computing device; using the plug-in module to communicate with a medical device; commanding the medical device to obtain physiological information from a patient; receiving data associated with the physiological information from the medical device; and transferring the data to a central repository.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 3, 2019
    Assignee: Welch Allyn, Inc.
    Inventors: John H. Irwin, Marshall W. Magee, Mark E. Pingel, Gary L. Arnold, David D. Gamble, David E. Rynkiewicz, Michael D. Hoch, James M. Robinson, Matthew J. Bobowski
  • Patent number: 10390768
    Abstract: Devices, systems, and methods for visually depicting a vessel and evaluating treatment options are disclosed.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: August 27, 2019
    Assignees: Volcano Corporation, Imperial College of Science, Technology and Medicine
    Inventors: David Anderson, Justin Davies
  • Patent number: 10388012
    Abstract: Provided is an image processing apparatus configured to process an image of a fundus of an eye, which is capable of simply and accurately measuring a distribution of cells that form a blood vessel wall of an eye. The image processing apparatus includes: an image acquiring unit configured to acquire an image of an eye; a vessel feature acquiring unit configured to acquire membrane candidate points that form an arbitrary wall of a blood vessel based on the acquired image; and a cell identifying unit configured to identify a cell that forms the wall of the blood vessel based on the membrane candidate points.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: August 20, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Imamura
  • Patent number: 10376157
    Abstract: A patient monitoring system may receive a physiological signal such as a photoplethysmograph (PPG) signal that exhibits frequency and amplitude modulation based on respiration. A phase locked loop may generate a frequency demodulated signal and an amplitude demodulated signal from the PPG signal. An autocorrelation sequence may be generated for each of the frequency demodulated signal and the amplitude demodulated signal. The autocorrelation sequences may be combined and respiration information may be determined based on the combined autocorrelation sequence.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: August 13, 2019
    Assignee: NELLCOR PURITAN BENNETT IRELAND
    Inventors: James Dripps, James Ochs, Paul S. Addison
  • Patent number: 10339363
    Abstract: Provided are apparatuses and methods using an optical speckle. An apparatus may include a light source configured to emit coherent light to an object and an imaging device configured to photograph a speckle pattern generated on the object by the coherent light. The apparatus may also include a processor having a function of determining whether the object is a living body or a non-living body by measuring a contrast of the speckle pattern. The processor may be configured to determine whether the object is a living body or not by comparing the contrast of the speckle pattern with a threshold contrast or a reference contrast previously registered by a user. The apparatus may be used by being applied to a fingerprint recognition system.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: July 2, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jaesoong Lee, Byoungho Lee, Youngmo Jeong
  • Patent number: 10328202
    Abstract: Methods and systems are provided for determining fluid administration. The system may determine fluid administration based on the fluid responsiveness and regional oxygen saturation of a subject. The system may receive the fluid responsiveness and regional oxygen saturation from external sources or may determine one or both based on received physiological signals. In some embodiments, the system may determine whether to administer fluid based on the fluid responsiveness and regional oxygen saturation. In some embodiments, the system may determine the amount of fluid to administer based on the fluid responsiveness and regional oxygen saturation. In some embodiments, the system may determine the effectiveness of fluid administration. In some embodiments, the system may provide an indication of the determined fluid administration so that a care-giver can implement the appropriate fluid administration. In some embodiments, the system may control the fluid administration based on its determination.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: June 25, 2019
    Assignee: Covidien LP
    Inventors: Peter Doyle, Paul S. Addison, James N. Watson
  • Patent number: 10307096
    Abstract: Provided is a biometric state determining method and apparatus. The biometric state determining apparatus may be configured to receive body data and biometric data of a user, and calculate a stress level based on an analysis of the received biometric data. The biometric state determining apparatus may calculate a biometric parameter based on a determined correlation between the calculated stress level and the received body data, and determine a biometric state of the user based on an analysis of the calculated biometric parameter.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: June 4, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Younho Kim, Seungwoo Noh, Sangyun Park
  • Patent number: 10271746
    Abstract: A method of photoplethysmography includes processing a signal based on at least one signal from at least one sensor arranged to capture light from a living subject to extract information on a characteristic of a periodic biological phenomenon. At least one of the signals from at least one sensor is obtained via sensing radiation as to a peak in an absorption spectrum of water.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: April 30, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Vincent Jeanne, Giovanni Cennini, Ihor Olehovych Kirenko
  • Patent number: 10264961
    Abstract: A method for visualizing a membrane on a retina of an eye includes recording a first image of the retina of the eye, wherein the membrane on the retina of the eye is not stained, recording a second image of the retina of the eye after the membrane on the retina of the eye has been stained, determining a first transformation such that mutually corresponding structures of the retina of the eye are located at mutually corresponding places in the second image and in the first image which was transformed with the first transformation, identifying image regions in the second image, which contain the membrane on the retina, based on the transformed first image and the recorded second image, and displaying the second image such that the identified image regions in the second image are highlighted relative to the surroundings of the identified image regions.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 23, 2019
    Assignee: Carl Zeiss Meditec AG
    Inventors: Abouzar Eslami, Corinna Maier-Matic, Falk Hartwig, Christine Kochwagner, Stefan Duca
  • Patent number: 10262123
    Abstract: A multimodal biometric authentication system utilizes a bulk absorption characteristic of human tissue that is measurable using a photoplethysmography (PPG) sensor. One disclosed method of operation includes extracting bulk absorption features from biometric data obtained using a PPG sensor and generating a first biometric template. Additional biometric features are also extracted from biometric data obtained using a second biometric sensor and a second biometric template is also generated. An authentication output signal is provided in response to the first biometric template matching a first stored corresponding enrolled biometric template and the second biometric template matching a second stored corresponding enrolled biometric template.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: April 16, 2019
    Assignee: Motorola Mobility LLC
    Inventors: James Ashley, Paul Christian, Julius Gyorfi
  • Patent number: 10238345
    Abstract: A biological information processing device includes an image input unit that inputs image data, a selection unit, an estimation unit, a detection unit, and an output unit. The selection unit selects image ranges of processing targets from the input image data. The estimation unit estimates pulse rates of the processing targets corresponding to the image ranges on the basis of image data of the selected image ranges of the processing targets. The detection unit performs relative comparison between the estimated pulse rates of the processing targets and thus detects a target which will possibly be abnormal or a target requiring special attention. The output unit outputs information regarding the detected target which will possibly be abnormal or the detected target requiring special attention.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: March 26, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tsuyoshi Nakamura, Tadanori Tezuka, Masatoshi Matsuo, Yoshinori Kumamoto
  • Patent number: 10232177
    Abstract: Devices, systems and methods are disclosed that allow a patient to self-treat a medical condition, such as migraine headache, by electrical noninvasive stimulation of a vagus nerve. The system comprises a handheld stimulator that is applied to the surface of the patient's neck, wherein the stimulator comprises or is joined to a smartphone. A camera of the smartphone may be used to position and reposition the stimulator to a particular location on the patient's neck. The system may also comprise a base station that is used to meter the charging of a rechargeable battery within the stimulator. The base station and stimulator transmit data to one another regarding the status of a stimulation session.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: March 19, 2019
    Assignee: Electrocore, LLC
    Inventors: Joseph P. Errico, Steven Mendez, Bruce J. Simon
  • Patent number: 10223937
    Abstract: The present invention is a method and system of determining and collecting data such as, location, weather, temperature, and time to users of a mobile devices. Mobile devices such as smart phones, tablets, internet computers, and other hand held mobile devices may be ideal for tracking historical data based upon a user's activities and previous locations. The affiliations are determined based upon travel of wearable devices as tracked by Internet services and activation of the system by the user. In one example, the user may tap the wearable device causing a software system to analyze data associated to locations and conditions visited by the user. Furthermore, the system may even be enhanced by use of features tailored to train the user on improving how they perform various hobbies such as fishing.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: March 5, 2019
    Inventor: Jesse Pacchione
  • Patent number: 10176566
    Abstract: The invention relates to a new method for determining the change in length of a stent which will occur after it has been implanted inside a vascular structure. Said determining process is carried out based on the relationship between said change in length and the morphological characteristics of the vascular structure of interest.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: January 8, 2019
    Inventor: Ignacio Larrabide
  • Patent number: 10172564
    Abstract: A apparatus for detecting a biological data of a target patient from an attachable sensor attached to the target patient includes a circuit and a storage that stores therein a first correspondence relationship between a state of a battery included in the sensor and a measurement error of the sensor. The circuit obtains the biological data and battery data indicating the state of the battery, the obtained biological data and the obtained battery data being collected by the sensor, and generates corrected biological data by correcting the biological data according to the battery data, wherein the generating of the corrected biological data includes generating correction data that depends on the battery data by referring to the storage that stores the first correspondence relationship, and generating the corrected biological data by correcting the biological data using the correction data.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 8, 2019
    Assignee: Olympus Corporation
    Inventors: Mitsunori Kubo, Nobuyuki Watanabe, Takatsugu Konno
  • Patent number: 10172528
    Abstract: This disclosure relates generally to biomedical signal processing, and more particularly to method and system for physiological parameter derivation from pulsating signals with reduced error. In this method, pulsating signals are extracted, spurious perturbations in the extracted pulsating signals are removed for smoothening, local minima points in the smoothened pulsating signal are derived, systolic maxima point between two derived local minima are derived, most probable pulse duration and most probable peak-to-peak distance are derived, dicrotic minima is removed while ensuring that every dicrotic minima is preceded by a systolic maxima point and followed by a beat start point of said systolic maxima, diastolic peak is derived while ensuring that every dicrotic maxima is preceded by a diastolic notch followed by next beat start point of that maxima, and physiological parameters are derived from the derived local minima points, systolic maxima points, dicrotic notch and diastolic peak.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: January 8, 2019
    Assignee: Tata Consultancy Services Limited
    Inventors: Soma Bandyopadhyay, Arijit Ukil, Chetanya Puri, Rituraj Singh, Arpan Pal, C A Murthy, Kayapanda Mandana
  • Patent number: 10054498
    Abstract: An apparatus, system and method for temperature measurement of a target site, such a human body site. The invention includes an intelligent temperature probe configured to physically contact a target site and to communicate with a host device, which can be implemented as a hand-held device or as a personal computer. The host device can compute, store and display an accurate predicted temperature, or an actual temperature at thermal equilibrium, of the target site for each of a plurality of different intelligent temperature probes that each have unique and varied operating characteristics. A set of unique operating characteristics for each temperature probe is represented by information communicated between each respective temperature probe and the host device.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: August 21, 2018
    Assignee: WELCH ALLYN, INC.
    Inventors: Craig M. Meyerson, David E. Quinn, John A. Lane, Anthony P. Wagner, Matthew J. Kinsley, Scott A. Martin, Matthew D. Mullin
  • Patent number: 10039458
    Abstract: Disclosed is a pulsation detection system for obtaining the accurate pulsation information by removing a noise of a body motion. The system includes a beat detector obtaining a pulse wave information containing a body movement noise and a body motion information, and a pulsation detector outputting a pulsation information after the noise of the body motion is removed from the pulse wave information. The beat detector includes a pulse wave measuring device, and a body motion measuring device having a light source for irradiating light to a skin and a photodetector for detecting a reflected light from the skin, arranged at a position away from the skin. The pulsation detector includes a receiver for receiving the pulse wave information and the body motion information, and a body motion remover for removing the noise so as to output an accurate pulsation information to the output part.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: August 7, 2018
    Assignees: Takunori Shimazaki, Solition Systems K.K.
    Inventors: Takunori Shimazaki, Hiroyuki Okuhata
  • Patent number: 9949677
    Abstract: Embodiments provide an apparatus, system, kit and method for in vivo measurement of blood oxygen saturation (BAS). One embodiment provides an implantable apparatus for measuring BAS comprising a housing, emitter, detector, processor and power source. The housing is configured to be injected through a tissue penetrating device into a target tissue site (TS). The emitter is configured to emit light into the TS to measure BAS, the emitted light having at least one wavelength (LOW) whose absorbance is related to a BAS. The detector is configured to receive light reflected from the TS, detect light at the LOW and generate a detector output signal (DOS) responsive to an intensity of the detected light. The processor is operably coupled to the detector and emitter to send signals to the emitter to emit light and receive the DOS and includes logic for calculating a BAS and generate a signal encoding the BAS.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: April 24, 2018
    Assignee: InCube Labs, LLC
    Inventor: Mir Imran
  • Patent number: 9924881
    Abstract: A pulse wave signal expressing a pulse is obtained by detecting a pulse of a measurement subject using a pulse wave sensor. The pulse wave signal is stored in a storage unit. A frequency spectrum of the pulse wave signal is found by converting the time-domain pulse wave signal stored in the storage unit into the frequency domain. It is determined whether or not the measurement subject is at rest by finding a frequency range, within a predetermined total frequency range the pulse rate of a person can take on, in which an intensity of a frequency component of the frequency spectrum exceeds a first threshold, and finding whether or not a ratio of the frequency range with respect to the total frequency range is less than a second threshold. A pulse rate from the point in time when the measurement subject has been determined to be at rest is found as the measurement subject's at-rest pulse rate.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: March 27, 2018
    Assignee: OMRON HEALTHCARE CO., LTD.
    Inventors: Kenji Fujii, Shigemi Kamegawa
  • Patent number: 9854977
    Abstract: The present invention is a Miniature Vein Enhancer that includes a Miniature Projection Head. The Miniature Projection Head may be operated in one of three modes, AFM, DBM, and RTM. The Miniature Projection Head of the present invention projects an image of the veins of a patient, which aids the practitioner in pinpointing a vein for an intravenous drip, blood test and the like. The Miniature projection head may have a cavity for a power source or it may have a power source located in a body portion of the Miniature Vein Enhancer. The Miniature Vein Enhancer may be attached to one of several improved needle protectors, or the Miniature Vein Enhancer may be attached to a body similar to a flashlight for hand held use. The Miniature Vein Enhancer of the present invention may also be attached to a magnifying glass, a flat panel display, and the like.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: January 2, 2018
    Assignee: AccuVein, Inc.
    Inventors: Ron Goldman, Stephen P. Conlon, Vincent Luciano, Fred Wood
  • Patent number: 9808154
    Abstract: Various systems, processes, and techniques may be used to achieve biometric identification via retina scanning with liveness detection. In some implementations, systems, processes, and techniques may include the ability to scan a retina to acquire at least one retina image and analyze the image to identify retinal components. The systems, processes, and techniques may also include the ability to compute and compare the information about the identified retinal components with pre-stored information and determine whether the scanned retina is associated with the pre-stored information. The systems, processes, and techniques may further include the ability to determine whether the imaged retina is composed of live tissue. The security system may then perform a chain of actions based on the matching and live tissue results.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: November 7, 2017
    Inventors: Timothy P. Cleland, Nazariy Shaydyuk
  • Patent number: 9782127
    Abstract: A photoelectric sphygmograph measurement device includes a light emitting part emitting light pulses, a light receiving part having a light receiving element that receives the light pulses and producing a corresponding output signal, and a control part driving the light emitting part to emit the light pulses and performing a pulse wave measurement by using the output signal. The control part drives the light emitting part so that a charge accumulated in the light emitting element converges on a predetermined amount in a case where the charge accumulated in the light receiving element decreases to the predetermined amount or less during a time when driving of the light emitting part is stopped and/or in a case where the light receiving element changes to a first state in which the light receiving element is capable of receiving the light pulses from a second state in which the light receiving element is not capable of receiving the light pulses.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: October 10, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Satoshi Sano, Takayuki Yamaji, Yasuhiko Nakano
  • Patent number: 9724003
    Abstract: Systems and methods may provide for a piezoelectric film that generates an excitation signal in response to pressure variations on a surface of the piezoelectric film and an analog front end coupled to the piezoelectric film, wherein the analog front end generates a first measurement signal based on the excitation signal. Additionally, a heart rate monitor may be coupled to the analog front end, wherein the heart rate monitor generates a heart rate measurement based on the first measurement signal. In one example, the analog front end includes a single stage amplifier.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: August 8, 2017
    Assignee: Intel Corporation
    Inventors: Amit S. Baxi, Vincent S. Mageshkumar
  • Patent number: 9719862
    Abstract: An apparatus, system and method for temperature measurement of a target site, such a human body site. The invention includes an intelligent temperature probe configured to physically contact a target site and to communicate with a host device, which can be implemented as a hand-held device or as a personal computer. The host device can compute, store and display an accurate predicted temperature, or an actual temperature at thermal equilibrium, of the target site for each of a plurality of different intelligent temperature probes that each have unique and varied operating characteristics. A set of unique operating characteristics for each temperature probe is represented by information communicated between each respective temperature probe and the host device.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: August 1, 2017
    Assignee: Welch Allyn, Inc.
    Inventors: Craig M. Meyerson, David E. Quinn, John A. Lane, Anthony P. Wagner, Matthew J. Kinsley, Scott A. Martin, Matthew D. Mullin
  • Patent number: 9675260
    Abstract: A photobiological measurement apparatus 1 may include a second received light quantity information calculation unit 33 for calculating measurement data relating to cerebral activity, a data display controller for displaying the measurement data for a specified area of a subject's brain, is characterized: is being provided with a reference light-receiving probe 14, which is disposed at a position separated by a first setting distance r1 from the light-transmitting prober 12 that is shorter than a second setting distance r2, and a first received light quantity information calculating unit 32, which calculates skin blood flow data relating to the skin blood flow using first received light quantity information ?A1 from the light transmitting probe 12 to the reference light-receiving probe 14, and in displaying the skin blood flow data at a specified position of the subject's scalp by indicating the measurement position on the subject's scalp and displaying the skin blood data.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: June 13, 2017
    Assignee: SHIMADZU CORPORATION
    Inventors: Akihiro Ishikawa, Yoshihiro Inoue, Takashi Amita, Satoru Kohno, Yoshinori Masuda, Haruhide Udagawa
  • Patent number: 9642565
    Abstract: A sensor for measuring physiological characteristics is provided that includes a circuit assembly and a means of deforming the sensor to a desired shape of small radius compound curvature. In one embodiment, the sensor includes a deformable layer configured to conform and maintain a shape of a surface on which the sensor is applied.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: May 9, 2017
    Assignee: Covidien LP
    Inventors: Oleg Gonopolskiy, Rick Scheuing
  • Patent number: 9642777
    Abstract: Detection of fluid conditions in an administration set. A light source is positioned to transmit an infrared light through administration set tubing and any fluid therein. A light sensor senses the infrared light transmitted through the tubing and generates an output signal. A frequency of the output signal is a function of an intensity of the light transmitted through the tubing. A processor receives and determines the frequency of the output signal, and compares the determined frequency to threshold frequency values to determine whether fluid is in the tubing. The processor also monitors the generated output signal to determine if the frequency of the output signal changes over time, and determines whether fluid is flowing in the tubing as a function of the determined change in frequency.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: May 9, 2017
    Assignee: Covidien LP
    Inventors: Thomas G. Lewis, William J. Byrd, Joseph A. Hudson
  • Patent number: 9636057
    Abstract: A sensor for measuring physiological characteristics includes a circuit assembly, at least one material layer, and an adhesive layer that extends beyond an outer edge of the circuit assembly. The at least one material layer forms an adhesive edge around the perimeter of the sensor.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: May 2, 2017
    Assignee: Covidien LP
    Inventors: Rick Scheuing, Arik Anderson, Oleg Gonopolskiy
  • Patent number: 9517019
    Abstract: There is provided a physiological measurement device including a light source, an image sensor and a processor. The light source illuminates a skin surface with a first brightness value and a second brightness value. The image sensor receives scattered light from tissues below the skin surface, and outputs a first image frame corresponding to the first brightness value and a second image frame corresponding to the second brightness value. The processor calculates an intensity comparison index between the first image frame and the second image frame, calculates perfusion data according to the first image frame and/or the second image frame, and identifies a contact status according to the intensity comparison index.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: December 13, 2016
    Assignee: PIXART IMAGING INC.
    Inventors: Robert Cheng-Yuan Wang, Hsin-Chia Chen
  • Patent number: 9282904
    Abstract: The invention is suitable for the communication and electron field, and provides a portable detecting device with two electrodes, the portable detecting device comprises: a main body of the portable detecting device and a wrist strap, wherein the main body of the portable detecting device comprises: a front and a back, wherein the front comprises a first lead electrode detecting a finger signal; and the back comprises a second lead electrode detecting a wrist signal. The technical solution provided by the present invention has the advantage of convenient for users to carry and easy for users obtaining the data thereof.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 15, 2016
    Assignee: Shenzhen Breo Technology Co., Ltd.
    Inventors: Xuejun Ma, Chuanle Jiang
  • Patent number: 9282902
    Abstract: One innovative aspect is directed to heartrate data collection. In some implementations, a circuit includes a light detector for generating a detected signal based on received light. The circuit includes a switching circuit configured to receive a first signal based on the detected signal and to switch among a first and a second configuration. In some implementations, the circuit includes a first and a second sampling circuit for sampling a value of the first signal when the switching circuit is in the first configuration and second configurations, respectively. In some implementations, the circuit includes an ambient light cancellation circuit for countering a first component of the first signal while the first switching circuit is in the first configuration. In some implementations, the circuit includes an adjustable gain circuit for adjusting a gain of the first signal while the first switching circuit is in the first configuration.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: March 15, 2016
    Assignee: Fitbit, Inc.
    Inventors: Peter W. Richards, Thomas Samuel Elliot, Shelten Gee Jao Yuen
  • Patent number: 9173638
    Abstract: A method for diagnosis includes capturing a sequence of two-dimensional ultrasound images of a moving organ within a body of a patient. At least one contour of the organ is identified in a succession of the images in the sequence and is processed to generate an output indicative of motion of the organ over time.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: November 3, 2015
    Assignee: Biosense Webster, Inc.
    Inventors: Assaf Govari, Andres Claudio Altmann, Alexander Levin