And Other Cardiovascular Parameters Patents (Class 600/324)
  • Patent number: 11147518
    Abstract: A regional oximetry system comprises a pod having a pod housing defining a sensor end and an opposite monitor end. A dual sensor connector is in electrical communication with the sensor end of the pod housing. A monitor connector is in electrical communication with the monitor end of the pod housing. An analog board is disposed within the pod housing and is in electrical communications with the dual sensor connector. The analog board receives and digitizes sensor signals from at least one optical sensor plugged into the dual sensor connector. A digital board is disposed within the pod housing and in electrical communications with the analog board and the monitor connector.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: October 19, 2021
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, David Dalke, Eric Karl Kinast, Walter M. Weber, Yuying Song, Faisal Kashif, Atiyeh Ghoreyshi, Kevin Forrest
  • Patent number: 11141088
    Abstract: An electronic device that handles recognition of mental behavioral, affect, emotional, mental states, mental health, or mood-based attributes based on deep neural networks (DNNs), stores a set of EEG signals and a set of bio-signals associated with a subject. The electronic device trains a plurality of first recognition models on a training set of EEG signals and a training set of bio-signals associated with different training subjects. The electronic device trains a second recognition model on a feature vector from output layers of the plurality of first recognition models. The electronic device estimates a plurality of dependency or relationship data by application of the trained plurality of first recognition models on the set of EEG signals and bio-signals. The electronic device identifies a mental behavioral attribute of the subject by application of the trained second recognition model on the plurality of signals and their relationship data.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: October 12, 2021
    Assignee: SONY CORPORATION
    Inventors: Ming-Chang Liu, Ahmad Khodayari-Rostamabad
  • Patent number: 11096588
    Abstract: A method for monitoring autoregulation includes, using a processor, receiving a blood pressure signal an oxygen saturation signal, and a regional oxygen saturation signal from a patient. The method also includes normalizing the regional oxygen saturation signal to correct for variation in the oxygen saturation signal based on a relationship between the oxygen saturation signal and the regional oxygen saturation signal. The method further includes determining a linear correlation between the blood pressure signal and the normalized regional oxygen saturation signal. The method still further includes providing a signal indicative of the patient's autoregulation status to an output device based on the linear correlation.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: August 24, 2021
    Assignee: Covidien LP
    Inventors: Paul Stanley Addison, James N. Watson, Dean Montgomery
  • Patent number: 11064906
    Abstract: A method and apparatus for determining a respiration state on the basis of a plurality of biological indicators calculated using bio-signals. The method for determining a respiration state on the basis of a plurality of biological indicators calculated using bio-signals includes collecting a photoplethysmography (PPG) signal measured by a PPG sensor and a cutaneous electric signal measured by an electrodermal activity (EDA) sensor; analyzing the collected PPG signal and cutaneous electric signal and calculating a plurality of biological indicators including a respiration rate; and comprehensively evaluating the plurality of biological indicators to determine a user's respiration state.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 20, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Soon Shin, Do Hyung Kang, Chan Young Hahm, Seung Yoon Nam, John Lorenzo
  • Patent number: 11040199
    Abstract: The subject matter of the present disclosure generally relates to techniques for neuromodulation of lymphatic tissue that include applying one or more energy pulses to a neuron of a subject, e.g., via an electrode positioned to deliver sufficient energy to the neuron, to modulate immune function. For example, an adaptive immune reflex of a subject may be modulated via neuromodulation.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: June 22, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Christopher Michael Puleo, Jeffrey Michael Ashe, Victoria Eugenia Cotero, Michael Ernest Marino
  • Patent number: 11043299
    Abstract: Systems, methods, and software can be used to reduce network security risks in a medical care network. In some aspects, a method includes detecting, at a medical equipment monitor located in a network, an electronic device that is connected to the network; determining, by the medical equipment monitor, that the electronic device comprises a medical equipment; associating, by the medical equipment monitor, a security profile with the medical equipment, wherein the security profile includes one or more security parameters; detecting, by the medical equipment monitor, a conflict between a data transmission activity from the medical equipment and at least one security parameter in the security profile; and in response to detecting the conflict, transmitting, from the medical equipment monitor, a notification of the conflict to a medical equipment controller.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: June 22, 2021
    Assignee: BlackBerry Limited
    Inventor: Nader Saad Henein
  • Patent number: 11039792
    Abstract: Techniques for heart rate estimation are disclosed. In an embodiment, synchronized photoplethysmograph (PPG) and 3-axis acceleration signals are received. Further, the PPG and acceleration signals are partitioned into windows. Furthermore, it is determined whether motion is present in a window of the acceleration signal. Moreover, Fourier transform is performed on the signals to obtain power spectra of the signals in the window when there is motion. Also, it is determined whether a peak of the acceleration signal is present in a range around first highest PPG peak. Further, it is determined whether the peak of the acceleration signal affects heart rate of the user when the peak of the acceleration signal is in the range around the highest PPG peak. The heart rate of the user in the window is then estimated using second highest PPG peak when the peak of the acceleration signal affects heart rate of the user.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 22, 2021
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Shalini Mukhopadhyay, Nasimuddin Ahmed, Avik Ghose, Arijit Sinharay, Dibyanshu Jaiswal, Arijit Chowdhury, Ramu Reddy Vempada, Tapas Chakravarty, Arpan Pal
  • Patent number: 11033237
    Abstract: A method is provided for predicting that a caregiver will order a blood transfusion during a treatment. The method includes obtaining, on a processor, first data that indicates values for one or more parameters of a characteristic of a peak of a Fourier transform of a continuous photoplethysmographic (PPG) waveform or a continuous electrocardiogram (ECG) waveform or both collected during the treatment. The method further includes applying, on the processor, coefficients to the values for the one or more parameters. The method further includes determining, on the processor, second data that indicates a prediction that the caregiver will order the blood transfusion during the treatment based on applying the coefficients to the values. The method further includes presenting on a display device output data based on the second data. An apparatus is also provided for predicting that the caregiver will order the blood transfusion during the treatment.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: June 15, 2021
    Assignee: University Of Maryland, Baltimore
    Inventors: Fu-Ming Hu, Colin F. Mackenzie, Shiming Yang, Konstantinos Kalpakis
  • Patent number: 11026607
    Abstract: According to various embodiments, a medical system and method for early detection of shock may include devices configured to provide information about multiple patient parameters. In certain embodiments, the system may receive input from a regional saturation sensor. Based on these inputs, the system may provide a diagnosis of shock and/or distinguish between various types of shock.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 8, 2021
    Assignee: Covidien LP
    Inventors: Mark Yu-Tsu Su, Ulf Rune Borg
  • Patent number: 11020030
    Abstract: A device for non-contact measurement of blood oxygen saturation (SpO2) in a mammalian subject including a camera and one or more arrays of LEDs each having a first set of LEDs emitting near infrared (NIR), and the second set of LEDs emitting orange light located in an optical path adapted to transmit reflected light from a subject to the camera. A controller transmits a camera trigger to the camera, and is further coupled to transmit control signals to the one or more arrays of LEDs. A processor receives photoplethysmography (PPG) data signal values from the camera. The PPG data signal values are present in the reflected light and include pulsatile and non-pulsatile components. The processor determines SpO2 values from the PPG data signal values from the measured ratios of pulsatile to non-pulsatile components of the PPG signals.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 1, 2021
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Nongjian Tao, Dangdang Shao
  • Patent number: 10993660
    Abstract: A system for monitoring biosignals of a user, including an attachment module configured to secure the system at an inner surface of a garment of the user; a flexible layer coupled to the attachment module, wherein the flexible layer and the attachment module cooperatively define a housing lumen; an electronics subsystem arranged within the housing lumen, the electronics subsystem including a first sensor, wherein the first sensor outputs a first signal; a respiratory sensor, wherein the respiratory sensor outputs a respiration signal, and a processing module that receives the first signal, the respiration signal, and the proximity signal, and generates a processed biometric output based on the first signal and the respiration signals.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: May 4, 2021
    Assignee: SPIRE, INC.
    Inventors: Jonathan Palley, Benjamin Yule, Dylan Jackson, Zhao Zhao, Ross Rudolph, Margaret Robb, Neema Moraveji
  • Patent number: 10987034
    Abstract: Apparatus configured to detect congenital heart disease (CHD) in newborns may comprise a body with a cavity configured to receive a hand or foot of a newborn. Sensor pairs of the apparatus may be configured scan such that the best signals can be selected, which can accommodate for movements of the newborn and/or facilitate impartialness as to which body part is inserted in the apparatus. Positions of the sensor pairs may be adjusted to ensure contact with the newborn's skin. A disposable cover may protect the newborn's skin from contacting the apparatus. The apparatus may include a pressure device so that CHD threshold values can be adjusted for different altitudes. The apparatus may integrate with electronic medical record (EMR) systems.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 27, 2021
    Assignee: LA BIOMEDICAL RSRCH INST AT HARBOR-UCLA MED CTR
    Inventor: Ruey-Kang Chang
  • Patent number: 10973446
    Abstract: A device to extract physiological information has at least one laser emitter. At least one optical detector is used to detect a change in optical power absorption. The laser emitter and optical detector are wire bonded into a chip scale module.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: April 13, 2021
    Inventor: David Schie
  • Patent number: 10973423
    Abstract: Processing PPG data using a device can include determining a quality estimate for a segment of PPG data and, in response to determining that the quality estimate exceeds a quality threshold, filtering the segment of the PPG data based upon an estimate of periodicity of the segment of the PPG data. A health marker can be determined for the segment of PPG data. The health marker can be validated based upon a prior determination of the health marker from PPG data. In response to the validation, the health marker can be output.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jawahar Jain, James Young, Cody Wortham, Sajid Sadi, Pranav Mistry
  • Patent number: 10966619
    Abstract: Systems and methods are disclosed for determining individual-specific blood flow characteristics. One method includes acquiring, for each of a plurality of individuals, individual-specific anatomic data and blood flow characteristics of at least part of the individual's vascular system; executing a machine learning algorithm on the individual-specific anatomic data and blood flow characteristics for each of the plurality of individuals; relating, based on the executed machine learning algorithm, each individual's individual-specific anatomic data to functional estimates of blood flow characteristics; acquiring, for an individual and individual-specific anatomic data of at least part of the individual's vascular system; and for at least one point in the individual's individual-specific anatomic data, determining a blood flow characteristic of the individual, using relations from the step of relating individual-specific anatomic data to functional estimates of blood flow characteristics.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: April 6, 2021
    Assignee: HeartFlow, Inc.
    Inventors: Timothy A. Fonte, Gilwoo Choi, Leo Grady, Michael Singer
  • Patent number: 10967185
    Abstract: Systems and methods for customizable titration of an implantable neurostimulator are provided. A method of titrating a neurostimulation signal delivered to a patient from an implantable pulse generator includes delivering a first neurostimulation signal with a first set of parameters, increasing a first value of the first neurostimulation signal at a first rate for a first period of time while delivering the first neurostimulation signal, ceasing delivery of the first neurostimulation signal when the first value reaches a first target value, delivering a second neurostimulation signal with a second set of parameters, and increasing the second neurostimulation signal at a second rate for a second period of time while delivering the second neurostimulation signal.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: April 6, 2021
    Assignee: LivaNova USA, Inc.
    Inventors: Scott Stubbs, Imad Libbus, Scott Mazar, Bruce H. KenKnight, Badri Amurthur
  • Patent number: 10966642
    Abstract: The invention relates to a photoplethysmography apparatus (100), comprising a source of light (110) configured to provide source light (130) of at least a first and a second spectral position directed at a tissue (140); alight detector (120) configured to detect scattered source light, and to provide at least a first and a second sensor signal (127, 29) indicative of the scattered source light of the first and second spectral position; and a processing unit (150). The processing unit is configured to calculate a corrected sensor signal (160), indicative of a variation in blood absorbance within the tissue, by removing a tissue-path error signal component, indicative of a variation in optical path length through the tissue over time, and a light-coupling error signal component, indicative of a variation of source light intensity of the source light emitted at the tissue, from the at least first and second sensor signals.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 6, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Olaf Thomas Johan Antonie Vermeulen
  • Patent number: 10952622
    Abstract: A method and apparatus for hemodynamically characterizing a neurological or fitness state by dynamic scattering light (DLS) is disclosed herein. In particular, a non-pulsatile blood-shear-rate-descriptive (BSRD) signal(s) is optically generated and analyzed. In some embodiments, the BSRD signal is generated dynamically so as to adaptively maximize (i.e. according to a bandpass or frequency-selection profile) a prominence of a predetermined non-pulsatile physiological signal within the BSRD. In some embodiments, the BSRD is subjected to a stochastic or stationary-status analysis. Alternatively or additionally, the neurological or fitness state may be computed from multiple BSRDs, including two or more of: (i) a [sub-200 Hz, ˜300 Hz] BSRD signal; (ii) a [˜300 Hz, ˜1000 Hz] signal; (iii) a [˜1000 Hz, ˜4000 Hz] signal and (iv) a [˜4000 Hz, z Hz] (z>=7,000) signal.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: March 23, 2021
    Assignee: ELFI-TECH LTD.
    Inventors: Ilya Fine, Alexander Kaminsky
  • Patent number: 10932704
    Abstract: A device for measuring brain oxygen level of a subject, including a probe (210) and a detecting means (220), which are respectively coupled to a processor (230). According to the example, the probe (210) includes three light sources (215a, 215b, 215c) that simultaneously emit the first, second, and third NIR wavelengths across the brain of the subject. The first NIR wavelength is the isosbestic wavelength for oxy-hemoglobin (HbO2) and deoxy-hemoglobin (Hb), the second NIR wavelength is shorter than the first NIR wavelength, and the third NIR wavelength is longer than the first NIR wavelength. The detecting means (220) includes a first, second and third detectors (221, 222, 223) for respectively detecting the NIR intensities of the first, second and third NIR wavelengths traveled across the brain. The processor (230) is configured to determine blood oxygen level based on the measured NIR intensities of the first, second and third NIR wavelengths by use of build-in algorithm derived from Beer-Lambert Law.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: March 2, 2021
    Assignee: MACKAY MEMORIAL HOSPITAL
    Inventors: Wen-Han Chang, Chih-Wei Lu
  • Patent number: 10925525
    Abstract: A system comprises of a pulse oximeter and diffusing wave spectroscopy (DWS) apparatus to perform pulse oximetry measurements. To calculate oxygen saturation, the pulse oximeter utilizes a pulse wave which is measured by an apparatus other than the pulse oximeter itself. In one embodiment, the different apparatus mentioned above is the diffusing wave spectroscopy (DWS) apparatus.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: February 23, 2021
    Assignee: Canon U.S.A., Inc.
    Inventor: Haruo Nakaji
  • Patent number: 10912464
    Abstract: The present disclosure generally relates to a system and method for non-invasively monitoring health of a vascular system of a patient. The system comprises a monitoring device for measuring vascular activity of the patient; and a server configured for performing steps of the method. The method steps comprise: receiving a set of signals comprising a vascular signal derived from vascular activity measurements of the patient by the monitoring device; reconstructing an identity pulse from the vascular signal; determining identity pulse features from the identity pulse; comparing data from a set of features with a patient database, the set of features comprising the identity pulse features; and generating a patient risk assessment of vascular health conditions based on results from the comparison with the patient database, wherein the patient database comprises data associated with the set of features for a population of patients.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: February 9, 2021
    Inventors: Mahawaththa Kodithuwakkuge Keerthi Priyankara, Wijesekara Vithanage Charith, Mundigala Arachchillage Isuru Suharshan Rajakaruna
  • Patent number: 10856747
    Abstract: A method and a system for processing a heart rate (HR) in an electronic device are provided. The method includes detecting a photoplethysmography (PPG) signal, producing a first HR from the detected PPG signal, producing a second HR from the detected PPG signal, determining a resultant HR by analyzing the first HR and the second HR, and displaying the resultant HR.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: December 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jooman Han, Jongmin Choi
  • Patent number: 10835157
    Abstract: A respiratory effort sensing apparatus (2) includes a flexible belt member (8) having a first buckle member (12A) and a second buckle member (12B), and a wearable respiratory monitoring recording device (6). The monitoring device includes: (i) a processing apparatus (34) structured to be selectively operable in a sleep mode and an active mode, and (ii) buckle detection circuitry (46) structured to detect that both buckle members are operatively coupled to the respiratory monitoring recording device and in response thereto generate a buckle detection signal. The processing apparatus is structured to, in response to receiving the buckle detection signal, automatically: (a) move from the sleep mode to the active mode, and (b) generate data indicative of a respiratory effort of a patient over time based on an effort-based signal generated by the respiratory effort sensing apparatus in response to changes in volume of a body part of the patient.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: November 17, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Norbert Hans Balko, Jeffrey Coles, Edmund Arnliot Shaw, James Martin Weiland
  • Patent number: 10827340
    Abstract: The present disclosure provides an emergency determination device. The emergency determination device includes a sensor configured to detect a vital sign of a person and a hand gesture of the person within a predetermined range, and a determiner configured to analyze the vital sign recognized by the sensor, to additionally analyze the hand gesture based on a result obtained by analyzing the vital sign, and to determine whether the emergency occurs, wherein the determiner analyzes the vital sign and determines whether the emergency occurs after the sensor detects a wake-up behavior.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: November 3, 2020
    Inventors: Sun Jong Yang, Jeong Woo Choi
  • Patent number: 10780017
    Abstract: An embodiment of a system for treating sleep apnea includes a collar, a pump, a motor, a sensor, and a controller. The collar is configured to maintain an airway of a subject open while the subject is sleeping by applying, to a throat of the subject, a negative pressure having a magnitude, and the pump is configured to generate the negative pressure. The motor is configured to drive the pump, and the sensor is configured to generate a sense signal that is related to a degree to which the airway is open. And the controller is configured to vary the magnitude of the negative pressure in response to the sense signal. For example, one or more of the pump, motor, sensor, and controller can be secured to the collar such that the system is self-contained, i.e., the entire sleep-apnea system can be worn by the subject.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 22, 2020
    Assignee: Somne LLC
    Inventors: Roderick A. Hyde, Kenneth G. Caldeira, Gary L. McKnight, Lowell L. Wood, Jr., Dennis J. Rivet, Katherine A. Sharadin, Michael A. Smith
  • Patent number: 10750982
    Abstract: An oxygen saturation measuring apparatus is provided. The oxygen saturation measuring apparatus includes a sensor configured to detect motion of the oxygen saturation measuring apparatus, a light emitter comprising light emitting circuitry configured to emit light to a target subject, a light receiver comprising light receiving circuitry configured to receive one or more of light reflected by the target subject or light transmitted through the target subject to generate a signal, and a processor configured to filter a frequency component corresponding to the detected motion in the signal, to detect a pulse frequency from the filtered signal, and to determine oxygen saturation of the target subject using the filtered signal and the detected pulse frequency.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: August 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-jae Baek, Jae-wook Shin, Jae-geol Cho, Gun-woo Jin, Byung-hun Choi
  • Patent number: 10672123
    Abstract: An image processing apparatus includes: an image acquisition unit that acquires a plurality of endoscope images obtained by imaging an observation target at different times with an endoscope; a blood vessel extraction unit that extracts blood vessels of the observation target from the plurality of endoscope images; a blood vessel information calculation unit that calculates a plurality of pieces of blood vessel information for each of the blood vessels extracted from the endoscope images; a blood vessel parameter calculation unit that calculates a blood vessel parameter, which is relevant to the blood vessel extracted from each of the endoscope images, by calculation using the blood vessel information; and a blood vessel change index calculation unit that calculates a blood vessel change index, which indicates a temporal change of the blood vessel, using the blood vessel parameter.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 2, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Yoshiro Imai
  • Patent number: 10645803
    Abstract: Disclosed herein is an efficient fabrication approach to create highly customizable wearable electronics through rapid laser machining and adhesion-controlled soft materials assembly. Well-aligned, multi-layered materials can be created from 2D and 3D elements that stretch and bend while seamlessly integrating with rigid components such as microchip integrated circuits (IC), discrete electrical components, and interconnects. These techniques are applied using commercially available materials. These materials and methods enable custom wearable electronics while offering versatility in design and functionality for a variety of bio-monitoring applications.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: May 5, 2020
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Carmel Majidi, Michael D. Bartlett, Eric J. Markvicka
  • Patent number: 10624584
    Abstract: The present invention relates to an extracorporeale interface unit (8), for an intravascular measurement system for measuring a physiological, or other, variable in a living body, being adapted to generate a sensor signal in response of said variable. The interface unit (8) comprises a sensor interface circuitry (6) adapted to interface a sensor wire configured to be inserted into the living body and provided with one or many sensor element(s) at its distal region. The sensor interface circuitry (6) further comprises a measurement unit (9) adapted to generate the measured data of the variable as a sensor signal. The sensor interface circuitry (6) comprises two current source units (CSU1, CSU2) adapted to energize the sensor element(s) via at least two connection points (CP1, CP2, . . . CPn), and a switching unit (10), wherein the switching unit (10) is adapted to alternately switch connection between the current source units (CSU1, CSU2) and at least two of the connection points (CP1, CP2, . . .
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: April 21, 2020
    Assignee: ST. JUDE MEDICAL COORDINATION CENTER BVBA
    Inventor: Magnus Samuelsson
  • Patent number: 10582887
    Abstract: A blood oxygenation sensor is provided comprising: a first current-powered light source to produce light having a first wavelength; a second current-powered light source to produce light having a second wavelength; a light sensor to produce a current signal having a magnitude that is indicative of intensity of light incident upon it; a current level driver circuit that includes a current source configured to couple the current source to alternatively provide current to one of the first current-powered light source and the second light current-powered light source; a processor configured to predict times of occurrence of one or more first time intervals in which arterial volume at a tissue site is at one of a maximum and a minimum; wherein the processor is configured to control the current source, to provide a first pattern of higher power-dissipation current pulses to the first and second current-powered light sources during the first time intervals, and to provide a second pattern of lower power-dissipation
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: March 10, 2020
    Assignee: Analog Devices Global
    Inventors: John Jude O'Donnell, Javier Calpe Maravilla, Colin G. Lyden, Thomas G. O'Dwyer
  • Patent number: 10528151
    Abstract: A system tracks movement of the VR input device relative to a portion of a user's skin, track movement of the VR input device relative to a physical surface external to the VR input device, or both. The system includes an illumination source integrated with a tracking glove coupled to a virtual reality console, and the illumination source is configured to illuminate a portion of skin on a finger of a user. The system includes an optical sensor integrated with the glove, and the optical sensor is configured to capture a plurality of images of the illuminated portion of skin. The system includes a controller configured to identify differences between one or more of the plurality of images, and to determine estimated position data based in part on the identified differences.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 7, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Sean Jason Keller, Tristan Thomas Trutna, David R. Perek, Bruce A. Cleary, III, Brian Michael Scally
  • Patent number: 10448880
    Abstract: A method is described that makes it possible to measure flushing, particularly in the context of the study of rosacea, and to distinguish normal flushing from pathological flushing. Also described, is the use of said method to study the effect of drug candidates, particularly against rosacea. The method can include: a) subjecting the subject to a flushing inducing stimulus; b) measuring the inflow of blood in the face of the subject during a time period covering the flushing; and c) calculating entropy of the inflow of blood.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: October 22, 2019
    Assignee: GALDERMA RESEARCH & DEVELOPMENT
    Inventors: Laurent Petit, Anne-Sophie Dugaret
  • Patent number: 10433739
    Abstract: In one embodiment, a data processing method comprises obtaining one or more first photoplethysmography (PPG) signals based on one or more first light sources that are configured to emit light having a first light wavelength corresponding to a green light wavelength; obtaining one or more second PPG signals based on one or more second light sources that are configured to emit light having a second light wavelength corresponding to a red light wavelength, one or more of the first light sources and one or more of the second light sources being co-located; generating an estimated heart rate value based on one or more of the first PPG signals and the second PPG signals; and causing the estimated heart rate value to be displayed via a user interface on a client device.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: October 8, 2019
    Assignee: Fitbit, Inc.
    Inventors: Kevin Pu Weekly, Subramaniam Venkatraman, Andrew Larsen Axley, Daniel J. Freschl, Peter W. Richards, Chris H. Sarantos
  • Patent number: 10420490
    Abstract: Provided according to embodiments of the invention are systems for monitoring a physiological state of an individual that include a PPG sensor, which optionally includes an auxiliary physiological sensor integrated with or connected thereto; a first signal processing device in electronic communication with the PPG sensor, whereby the PPG sensor transmits PPG signals to the first signal processing device; and a second signal processing device that detects at least a portion of the signals transmitted by the PPG sensor to the first signal processing device, at least a portion of signals transmitted by the auxiliary physiological sensor, or both. Related methods are also provided herein.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: September 24, 2019
    Assignee: XHALE ASSURANCE, INC.
    Inventors: David Rich, Andrew Kersey, Sean Cohen, Richard Melker
  • Patent number: 10413226
    Abstract: A device for non-contact measurement of blood oxygen saturation (SpO2) in a mammalian subject including a camera and one or more arrays of LEDs each having a first set of LEDs emitting near infrared (NIR), and the second set of LEDs emitting orange light located in an optical path adapted to transmit reflected light from a subject to the camera. A controller transmits a camera trigger to the camera, and is further coupled to transmit control signals to the one or more arrays of LEDs. A processor receives photoplethysmography (PPG) data signal values from the camera. The PPG data signal values are present in the reflected light and include pulsatile and non-pulsatile components. The processor determines SpO2 values from the PPG data signal values from the measured ratios of pulsatile to non-pulsatile components of the PPG signals.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 17, 2019
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Nongjian Tao, Dangdang Shao
  • Patent number: 10405784
    Abstract: A tissue monitoring device includes a light emitter, a light detector, a probe, and a controller. The light emitter emits light through tissue in the subject, such as tissues in the subject's head. The light detector detects light emitted from the light emitter and scattered by the subject's tissue. The probe is inserted into an orifice of the subject and includes one of the light emitter and light detector. The controller communicates with the light detector and the light emitter and detects an oxygenation level of the blood in the subject's tissue based upon measurements of the scattered light. The probe may include one or more bladders for blocking ambient light and/or for ensuring contact exists between the light detector (or emitter) and an interior surface of the subject's orifice.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: September 10, 2019
    Assignee: Stryker Corporation
    Inventor: Marko N. Kostic
  • Patent number: 10398862
    Abstract: An air delivery system includes a controllable flow generator operable to generate a supply of pressurized breathable gas to be provided to a patient for treatment and a pulse oximeter configured to determine a measure of patient effort during a treatment period and provide a patient effort signal for input to control operation of the flow generator.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: September 3, 2019
    Assignee: ResMed Pty Ltd
    Inventors: Dion Charles Chewe Martin, John David Oates
  • Patent number: 10398328
    Abstract: Various embodiments relate to a wearable device for obtaining signals from a subject for use in the monitoring of pulse-related information of the subject. To enable the use of such a device in the monitoring of pulse-related information, which provides for unobtrusive, reproducible, easy to use, and simple measurements, the device comprises a body, a PPG signal sensing unit for acquiring a first PPG signal from a first body location of the subject, and an imaging unit for acquiring a sequence of images from a second body location of the subject's body different from the first body location, said sequence of images being configured for deriving a second PPG signal for the second body location of the subject. Said PPG signal sensing unit and said imaging unit are mounted in or at the device body and are configured to simultaneously acquire the first PPG signal and the sequence of images.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: September 3, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Ihor Olehovych Kirenko, Ronaldus Maria Aarts, Caifeng Shan
  • Patent number: 10393652
    Abstract: An optical apparatus for obtaining a reflectance spectrum includes a first means for generating a light, a second means for transferring and receiving the light on a substrate, a third means for collecting a diffusely reflected light, and a fourth means for separating the diffusely reflected light from a specular reflected light to obtain information about a concentration of a chromophore in the substrate. The second means is an optic probe made of Poly(methyl methacrylate) (PMMA) material including an inner rod and an outer rod, the inner rod is nested within the outer rod for collection and for illumination, the inner rod and the outer rod are coaxial, the inner rod is longer than the outer rod, the inner rod is isolated from the outer rod with a semi mirrored isolator, the reflected light is reflected from deep within the substrate by the inner rod.
    Type: Grant
    Filed: January 1, 2016
    Date of Patent: August 27, 2019
    Assignee: TUBITAK
    Inventors: Yunus Karamavuş, Hasan Basri Çelebi, Yildiz Uludağ, Gökhan Bektaş, Veysi Cansu, Dadaş Riza
  • Patent number: 10349898
    Abstract: Automated critical congenital heart defect (“CCHD”) screening systems and processes are described. A caregiver may be guided to use a single or dual sensor pulse oximeter to obtain pre- and post-ductal blood oxygenation measurements. A delta of the measurements indicates the possible existence or nonexistence of a CCHD. Errors in the measurements are reduced by a configurable measurement confidence threshold based on, for example, a perfusion index. Measurement data may be stored and retrieved from a remote data processing center for repeated screenings.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 16, 2019
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Bilal Muhsin
  • Patent number: 10335068
    Abstract: The present disclosure relates to noninvasive methods, devices, and systems for measuring various blood constituents or analytes, such as glucose. In an embodiment, a light source comprises LEDs and super-luminescent LEDs. The light source emits light at least wavelengths of about 1610 nm, about 1640 nm, and about 1665 nm. In an embodiment, the detector comprises a plurality of photodetectors arranged in a special geometry comprising one of a substantially linear substantially equal spaced geometry, a substantially linear substantially non-equal spaced geometry, and a substantially grid geometry.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 2, 2019
    Assignee: MASIMO CORPORATION
    Inventors: Jeroen Poeze, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Ferdyan Lesmana, Massi Joe E. Kiani
  • Patent number: 10299734
    Abstract: A system may include a photoplethysmograph (PPG) sensor configured to be secured to a patient and to generate a PPG signal for the patient. The system may also include a motion sensor configured to generate a motion signal indicative of motion of the patient. Further, the system may include a controller configured to receive the PPG signal from the PPG sensor and the motion signal from the motion sensor, to analyze the motion signal to detect motion of the patient, and to deactivate the at least one emitter of the PPG sensor based on the analysis of the motion signal when motion of the patient is detected.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 28, 2019
    Assignee: Covidien LP
    Inventors: James N. Watson, Daniel Bartlett, Paul S. Addison
  • Patent number: 10285602
    Abstract: A heart beat detection device comprises at least one optical reflection sensor to be positioned on the skin of a person. The sensor unit is provided with a light emitter and a corresponding light receiver which converts the light reflected by the skin into an electric signal and comprises electrically adjustable optical filters connected to the emitter, to the receiver or to both of them in order to select, upon operation, a desired light wavelength and perform processing of the signals thus obtained in order to reinforce the heart beat signal. A system with this device and a detection method are also described.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: May 14, 2019
    Assignee: Empatica Srl
    Inventors: Simone Tognetti, Ivan Cenci, Daniele Resnati, Maurizio Garbarino, Matteo Lai
  • Patent number: 10278648
    Abstract: Automated critical congenital heart defect (“CCHD”) screening systems and processes are described. A caregiver may be guided to use a single or dual sensor pulse oximeter to obtain pre- and post-ductal blood oxygenation measurements. A delta of the measurements indicates the possible existence or nonexistence of a CCHD. Errors in the measurements are reduced by a configurable measurement confidence threshold based on, for example, a perfusion index. Measurement data may be stored and retrieved from a remote data processing center for repeated screenings.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 7, 2019
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Bilal Muhsin
  • Patent number: 10267638
    Abstract: A navigation system comprises a base system and at least one correction system. The base system and the at least one correction system each capture measured values. The measured values describe navigation data, and are each burdened with error values. The error values describe discrepancies in the measured values from the described navigation data. At least the error values of the measured values of the base system are recognized by the measured values of the at least one correction system and wherein the recognition is effected by considering an availability of the at least one correction system. The consideration represents adaptation of parameters of a stochastic system model. The stochastic system model prescribes a weighting for measured values of the at least one correction system with respect to measured values of the base system in accordance with the parameters.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 23, 2019
    Assignee: Continental Teves AG & Co. OHG
    Inventors: Nico Steinhardt, Daniel Surek
  • Patent number: 10251607
    Abstract: A physiological signal measurement apparatus includes a battery cover covering an area where a battery of a terminal device is detachably attached, a sensor unit detecting a physiological signal, the sensor unit being included in the battery cover, and a control unit controlling the sensor unit to detect the physiological signal, wherein the physiological signal measurement apparatus is detachably attached to the terminal device as the battery cover is detachably attached to the terminal device.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-geol Cho, Kwang-choon Kim, Jae-pil Kim, Jin-hong Min, Hyun-jae Baek, Hang-sik Shin
  • Patent number: 10201312
    Abstract: Embodiments of the present disclosure provide techniques and configurations for an apparatus for opportunistic measurements and processing of user's context. In one instance, the apparatus may include a sensor module with sensors disposed on a work surface to maintain direct or indirect contact with portions of user's limbs for a time period when the portions of user's limbs are disposed on the work surface, to obtain readings of first and second parameters of user's context over the time period of the direct or indirect contact; and a processing module to process the readings of the first and second parameters, including to identify a first feature of the first parameter and a second feature of the second parameter that is temporally correlated with the first feature, and determine a third parameter of the user's context based on the identified first and second features. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: February 12, 2019
    Assignee: Intel Corporation
    Inventors: Arvind Kumar, Marisa A. Ahmad
  • Patent number: 10188329
    Abstract: A handheld device includes a contact surface, an optical module, a processor, a display module, and a user operable switch. The optical module is disposed on the contact surface. The optical module has at least one optical emitter and at least one optical detector. The at least one optical detector has a light shield associated with the contact surface. The light shield is configured to exclude ambient light from the contact surface when the contact surface abuts tissue of a patient. The processor is coupled to the optical module and configured to execute instructions for determining a measure of oximetry corresponding to the tissue. The display module is coupled to the processor and is configured to indicate the measure of oximetry. The user operable switch is configured to activate at least one of the processor, the optical module, and the display module.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 29, 2019
    Assignee: Nonin Medical, Inc.
    Inventors: Philip O. Isaacson, Timothy L. Johnson, Matthew Prior
  • Patent number: 10172570
    Abstract: Apparatus and methods for providing dynamic displays. In one embodiment, a method is provided wherein health parameters having goals associated therewith are displayed; data relating to the health parameters is received and the display is incremented according to a progress of the user toward the goal. When collection of the data is completed, it is determined whether a current value of a first one of the heath parameters within a predetermined range of the goal associated therewith. When the current value of the first one of the health parameters is within the range, a portion of the display relating thereto is upgraded. When the current value of all of the health parameters is within the range, upgrading the entire display. The display upgrades may comprise display of an animation and/or using color, light, and/or flashing to simulate a shining or shimmering of the display.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: January 8, 2019
    Assignee: Under Armour, Inc.
    Inventors: Marcus Pina, Gloria Wu, Andrew Moore, Scott Laing
  • Patent number: 10169862
    Abstract: Methods and systems for imaging tissue of a subject are disclosed, and involve illuminating the tissue with a coherent light having a coherent wavelength, acquiring image data of the tissue using a color image sensor, and processing the image data using laser speckle contrast analysis while correcting for differences in sensitivity of color pixels at the coherent wavelength to generate a perfusion image of the tissue. The perfusion image is then displayed to the user. Also disclosed are methods and systems for correcting for ambient light and for acquiring white light images along with laser speckle images.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: January 1, 2019
    Assignee: NOVADAQ TECHNOLOGIES ULC
    Inventors: Marc André, Arthur E. Bailey, Paul Roald Westwick