Cardiovascular Testing Patents (Class 600/479)
  • 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
  • Patent number: 9125629
    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, DEM, 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: March 5, 2014
    Date of Patent: September 8, 2015
    Assignee: AccuVein, Inc.
    Inventors: Ron Goldman, David Hunt, Mark Mock, Graham Marshall, Stephen P. Conlon, Robert Roth
  • Patent number: 9107566
    Abstract: A measuring device is provided. The measuring device has at least one sensor unit for capturing a cardiac signal, a postprocessing unit and a signal transfer unit for signal transfer between the at least one sensor unit and the postprocessing unit. The at least one sensor unit has at least one acoustic sensor element.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: August 18, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bernd Assmann, Michael Frank, Sven Heggen, Ernst Mustafa, Jürgen Rössler
  • Patent number: 9072433
    Abstract: Embodiments of the present disclosure relate to a system and method for determining a physiologic parameter of a patient. Specifically, embodiments provided herein include blood pressure cuffs that are adapted to be used in conjunction with a photoplethysmography sensor. The cuff as provided may be configured to be placed over the sensor and/or aligned in a specific manner relative to the sensor. Alternatively, the cuffs may include integral optical components.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: July 7, 2015
    Assignee: COVIDIEN LP
    Inventors: Bo Chen, Youzhi Li, Daniel Lisogurski
  • Patent number: 9060721
    Abstract: Optical coherence tomography (herein “OCT”) based analyte monitoring systems are disclosed. In one aspect, techniques are disclosed that can identify fluid flow in vivo (e.g., blood flow), which can act as a metric for gauging the extent of blood perfusion in tissue. For instance, if OCT is to be used to estimate the level of an analyte (e.g., glucose) in tissue, a measure of the extent of blood flow can potentially indicate the presence of an analyte correlating region, which would be suitable for analyte level estimation with OCT. Another aspect is related to systems and methods for scanning multiple regions. An optical beam is moved across the surface of the tissue in two distinct manners. The first can be a coarse scan, moving the beam to provide distinct scanning positions on the skin. The second can be a fine scan where the beam is applied for more detailed analysis.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: June 23, 2015
    Assignee: GLT ACQUISITION CORP.
    Inventors: Samuel Reichgott, Walter J. Shakespeare, George Kechter, Phillip William Wallace, Matthew J. Schurman
  • Publication number: 20150148624
    Abstract: An improved sensor (102) for physiology monitoring in mobile devices, wearables, security, illumination, photography, and other devices and systems uses broadband light (114) transmitted to a target (125) such as the ear, face, or wrist of a living subject. Some of the scattered light returning from the target to detector (141) is passed through narrowband spectral filter set (155) to produce multiple detector regions, each sensitive to a different wavelength range.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Inventor: David Alan Benaron
  • Publication number: 20150148635
    Abstract: An improved sensor (102) for rate monitoring in mobile devices, wearables, security, illumination, photography, and other devices and systems uses an optional phosphor-coated broadband white LED (103) to produce broadband light (114), which is then transmitted along with any ambient light to target (125) such as the ear, face, or wrist of a living subject. Some of the scattered light returning from the target to detector (141) is passed through spectral filter set (155) to produce multiple detector regions, each sensitive to a different waveband wavelength range, and the detected light is analyzed to determine an interval between repetitive events such as heartbeat or respirations, in part based on a noninvasive measure of components of the bloodstream.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Inventor: David Alan Benaron
  • Publication number: 20150148628
    Abstract: Support structures for positioning sensors on a physiologic tunnel for measuring physical, chemical and biological parameters of the body and to produce an action according to the measured value of the parameters. The support structure includes a sensor fitted on the support structures using a special geometry for acquiring continuous and undisturbed data on the physiology of the body. Signals are transmitted to a remote station by wireless transmission such as by electromagnetic waves, radio waves, infrared, sound and the like or by being reported locally by audio or visual transmission. The physical and chemical parameters include brain function, metabolic function, hydrodynamic function, hydration status, levels of chemical compounds in the blood, and the like. The support structure includes patches, clips, eyeglasses, head mounted gear and the like, containing passive or active sensors positioned at the end of the tunnel with sensing systems positioned on and accessing a physiologic tunnel.
    Type: Application
    Filed: September 29, 2014
    Publication date: May 28, 2015
    Applicant: GEELUX HOLDING, LTD.
    Inventor: Marcio Marc ABREU
  • Publication number: 20150148633
    Abstract: Provided are a photoplethysmographic measurement apparatus, a photoplethysmographic measurement method, and an apparatus for measuring a biosignal. The photoplethysmographic measurement apparatus includes a probe, a light emitter comprising a nonelectrical light source and disposed at one end of the probe, the light emitter configured to illuminate a measurement part, and a light receiver disposed at another end of the probe and configured to detect light reflected or transmitted by the illuminated measurement part.
    Type: Application
    Filed: August 13, 2014
    Publication date: May 28, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang Yun PARK
  • Publication number: 20150148625
    Abstract: An improved sensor (102) for respiratory and metabolic monitoring in mobile devices, wearables, security, illumination, photography, and other devices and systems uses an optional phosphor-coated broadband white LED (103) to produce broadband light (114), which is then transmitted along with any ambient light to a target (125) such as the ear, face, or wrist of a living subject. Some of the scattered light returning from the target to detector (141) is passed through narrowband spectral filter set (155) to produce multiple detector regions, each sensitive to a different waveband wavelength range, and the detected light is spectrally analyzed to determine a measure of respiration of the subject, such as respiratory rate, volume, effort, depth, or respiratory variability.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Inventor: David Alan Benaron
  • Publication number: 20150141774
    Abstract: A subject information detecting unit I1 includes a sensor mount I21, having an opening I22 at a portion to be in contact with a subject I91 and an internal cavity I23 communicated with the opening I22, the cavity defining a closed spatial structure in a state where the subject information detecting unit I1 is mounted on the subject such that the opening I22 faces the subject I91; a sensor I31 disposed on the sensor mount I21 and receiving pressure information deriving from pulsating signals in a blood vessel I92 in the subject I91, the sensor detecting the pulsating signals in the blood vessel in the subject; and a film member I11 separating the opening I22 from the sensor I31 and blocking the permeation of moisture. The sensor I31 detects the pressure information deriving from pulsating signals from the blood vessel I92 in the subject I91 and propagating through the opening I22, the cavity I23 and the film member I11.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Applicants: Mitsubishi Chemical Holdings Corporation, Bifrostec Inc.
    Inventors: Hiroshi Ogawa, Atsushi Okumoto, Atsuo Takeuchi, Eiji Tanaka
  • Publication number: 20150141766
    Abstract: The present disclosure relates to apparatus and method for optical measurement of cardiovascular recovery and/or a respiration rate. In some embodiments, an apnea detector generates an alert signal if the computed respiration rate drops below a threshold.
    Type: Application
    Filed: September 30, 2014
    Publication date: May 21, 2015
    Inventor: Ilya Fine
  • Publication number: 20150141769
    Abstract: Novel tools and techniques for assessing, predicting and/or estimating effectiveness of fluid resuscitation of a patient and/or an amount of fluid needed for effective resuscitation of the patient, in some cases, noninvasively.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Isobel Jane Mulligan, Gregory Zlatko Grudic, Steven L. Moulton
  • Publication number: 20150138556
    Abstract: An apparatus worn by a subject includes an energy-harvesting power source, at least one physiological sensor and/or at least one environmental sensor coupled to the energy-harvesting power source. The at least one physiological sensor senses physiological information from the subject and the at least one environmental sensor senses environmental information in a vicinity of the subject. The energy-harvesting power source may include one or more of the following: a solar cell module configured to collect and store solar energy, a piezoelectric device or a microelectromechanical systems (MEMS) device configured to collect and store energy caused by movement of the subject and/or energy emanating from an environment in which the subject is located, a thermoelectric or thermovoltaic device configured to collect and store energy caused by thermal energy or temperature gradients in an environment in which the subject is located, a cranking or winding mechanism configured to store mechanical energy.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Inventors: Steven Francis LeBoeuf, Jesse Berkley Tucker, Michael Edward Aumer
  • Patent number: 9034023
    Abstract: Dynamic colorectal PDT methods, devices and photosensitizer compositions to treat abnormal cell growth in anal tissue such as perianal and intra-anal intraepithelial neoplasia grade III are presented. Dynamic colorectal PDT method comprises the steps of administering topically, intravenously or orally a photosensitizer composition; irradiating; monitoring treatment parameters before, during and/or after irradiation. Photosensitizer composition comprises Temoporfin and excipients/carriers, appropriate for the application method. An applicator is provided for colorectal PDT treatments enhancing irradiation delivery and monitoring treatment parameters. Preferably, applicator is made of a material, used to monitor the fluence rate simultaneously while doing optical spectroscopy. Measurement probe devices are provided for monitoring PDT treatment parameters in-vivo.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: May 19, 2015
    Assignee: Biolitec Pharma Marketing Ltd
    Inventors: Bastiaan Kruijt, Eric M van der Snoek, Henricus J. C. M. Sterenborg, Arjen Amelink, Dominic J. Robinson, Wolfgang Neuberger
  • Publication number: 20150133745
    Abstract: A portable apparatus comprising a communication interface for communicating with a wireless network; a photo sensor for receiving non-invasive biometric information of a user; at least one processor; and at least one memory including computer program code. The at least one memory and the computer program code configured to, with the at least one processor, cause the portable apparatus to receive a noisy biometric information using a photo sensor; filter the noisy biometric information to provide filtered input data for reducing noise; derive the input data to provide local maxima values of the input data; define at least one local maxima value pair; determine a weight value for the at least one local maxima value pair; select a local maxima value pair of the highest weight value; and generate an estimate of a pulse based on the selected local maxima value pair.
    Type: Application
    Filed: September 6, 2014
    Publication date: May 14, 2015
    Inventors: Vili Forsell, Tero Karkkainen
  • Patent number: 9031641
    Abstract: A medical device system and associated method to control a laser Doppler unit to emit light from a coherent laser light source and collect a photodetector signal produced by the laser Doppler unit by a signal processor comprising a bandpass filter. The bandpass filter is applied to the photodetector signal to determine a tissue perfusion measurement from the filtered signal. A monitoring unit is enabled to receive the tissue perfusion measurement to detect a physiological condition of the patient in response to the tissue perfusion measurement.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 12, 2015
    Assignee: Medtronic, Inc.
    Inventors: Vinayakrishnan Rajan, Raphael Alexander Schneider
  • Patent number: 9031640
    Abstract: [Subject] To provide laser Doppler blood flow measuring method and device which achieve multi-dimensional measurement efficiently at a high degree of accuracy over a wide range with a simple optical system and device. [Solving Means] Laser light from a semiconductor laser 12 is split and formed into sheet lights Ls using a cylindrical lens 22, and the sheet lights Ls are crossed with each other at a predetermined position. A lens system 30 configured to form an image of scattered lights into a linear shape at a linear irradiation site Lx where the sheet lights Ls cross with each other is provided. An optical fiber array 32 having a plurality of optical fibers 34 is provided at an image-forming position of the lens system 30. Avalanche photodiodes 42 configured to convert the scattered lights which are shifted in frequency by the Doppler effect caused by the blood flow into electric signals for the each optical fiber 34 are provided.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 12, 2015
    Assignees: Institute of National Colleges of Technology, Japan, National Univeristy Corporation of Toyama
    Inventors: Tadashi Hachiga, Hiroki Ishida, Shunsuke Akiguchi, Hiroki Shirakawa, Tsugunobu Andoh, Yasushi Kuraishi
  • Patent number: 9028415
    Abstract: A blood flow monitor with a visual display. The monitor may include a probe monitoring circuit configured to be associated with a blood vessel. The probe monitoring circuit may transmit a burst signal and receive a reflected signal, where a frequency shift in the reflected signal represents a flow rate associated with the blood vessel. A mixer may be provided in electrical communication with the probe. A signal processing circuit in electrical communication with the output of the mixer may be configured to drive the visual display with a signal representing the flow rate associated with the blood vessel.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: May 12, 2015
    Assignee: Cook Medical Technologies LLC
    Inventor: Donald A. Henry
  • Publication number: 20150126875
    Abstract: The present disclosure provides a description of various methods and systems associated with determining possible presence of Atrial Fibrillation (AF). In one example, a camera of a client device, such as a mobile phone, may acquire a series of images of a body part of a user. A plethysmographic waveform may be generated from the series of images. An autocorrelation function may be calculated from the waveform, and a number of features may be computed from the autocorrelation function. Based on an analysis of the features, a determination may be made about whether the user is experience AF. Such determined may be output to a display of the mobile phone for user review.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 7, 2015
    Inventor: Ming-Zher Poh
  • Publication number: 20150126820
    Abstract: There is provided a method of determining a measure of the cardiac output, CO, of a patient, the method comprising obtaining measurements of one or more physiological characteristics of the patient, the physiological characteristics including at least the heart rate, HR, of the patient, the systolic blood pressure, S, of the patient and the diastolic blood pressure, D, of the patient; and processing the measurements to determine a measure of the cardiac output of the patient; wherein the measure of the cardiac output of the patient is derived using the relationship (I), CO=K2HR(S?D)(PTT)2, and/or CO=K2HR(?D)(PAT?PEP)2 where K1 and K2 are patient-specific calibration factors, PAT is the pulse arrival time, PEP is the pre-ejection period and PTT is the pulse transit time, the time taken for a pulse wave to travel between two points in the body of the patient.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 7, 2015
    Inventor: Jens Muhlsteff
  • Publication number: 20150126833
    Abstract: Disclosed techniques include monitoring a physiological characteristic of a patient with a sensor that is mounted to an inner wall of a thoracic cavity of the patient, and sending a signal based on the monitored physiological characteristic from the sensor to a remote device.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventors: David A. Anderson, Noah D. Barka, Erin D. Grassl, Matthew D. Bonner
  • Publication number: 20150119725
    Abstract: Methods, systems, computer-readable media, and apparatuses for obtaining at least one bodily function measurement are presented. A mobile device includes an outer body sized to be portable for user, a processor contained within the outer body, and a plurality of sensors physically coupled to the outer body. The sensors are configured to obtain a first measurement indicative of blood volume and a second measurement indicative of heart electrical activity in response to a user action. A blood pressure measurement is determined based on the first measurement and the second measurement. The sensors also include electrodes where a portion of a user's body positioned between the electrodes completes a circuit and a measurement to provide at least one measure of impedance associated with the user's body. A hydration level measurement is determined based on the measure of impedance.
    Type: Application
    Filed: May 15, 2014
    Publication date: April 30, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Russel Allyn MARTIN, Leonid SHEYNBLAT, Douglas Wayne HOFFMAN
  • Publication number: 20150119657
    Abstract: A monitoring device configured to be attached to the ear of a person includes a base, an earbud housing extending outwardly from the base that is configured to be positioned within an ear of a subject, and a cover surrounding the earbud housing. The base includes a speaker, an optical emitter, and an optical detector. The cover includes light transmissive material that is in optical communication with the optical emitter and the optical detector and serves as a light guide to deliver light from the optical emitter into the ear canal of the subject wearing the device at one or more predetermined locations and to collect light external to the earbud housing and deliver the collected light to the optical detector.
    Type: Application
    Filed: November 26, 2014
    Publication date: April 30, 2015
    Inventors: Steven Francis LeBoeuf, Jesse Berkley Tucker, Michael Edward Aumer, Steven Matthew Just