Patents Examined by Chu Chuan Liu
  • Patent number: 10912504
    Abstract: There is provided herewith an apparatus, probe, and method for the combination of near-infrared spectroscopy (NIRS) and diffuse correlation spectroscopy (DCS). The apparatus, probe and method allow for the simultaneous detection of NIRS and DCS.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: February 9, 2021
    Assignees: CANON U.S.A., INC., THE GENERAL HOSPITAL CORPORATION
    Inventors: Haruo Nakaji, Maria Angela Franceschini, David Boas, Erin Buckley, Pei-Yi Lin, Stefan Carp
  • Patent number: 10912469
    Abstract: An electronic fitness device comprises a first optical transmitter array, a first optical receiver, a second optical receiver, and a processing element. The first optical transmitter array includes first optical transmitter operable to transmit a first optical signal having a first wavelength and a second optical transmitter operable to transmit a second optical signal having a second wavelength. The first optical receiver is operable to receive modulated optical signals and generate a first photoplethysmogram (PPG) signal resulting from the first optical signal and a second PPG signal resulting from the second optical signal. The second optical receiver is operable to receive modulated optical signals and generate a third PPG signal resulting from the first optical signal and a fourth PPG signal resulting from the second optical signal. The processing element is operable to determine cardiac information of the user based on the received PPG signals.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: February 9, 2021
    Inventors: Paul R. MacDonald, Christopher J. Kulach, James K. Rooney
  • Patent number: 10912501
    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 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: September 24, 2020
    Date of Patent: February 9, 2021
    Assignee: Masimo Corporation
    Inventors: Jeroen Poeze, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Ferdyan Lesmana, Massi Joe E. Kiani, Greg Olsen
  • Patent number: 10912500
    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 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: March 30, 2020
    Date of Patent: February 9, 2021
    Assignee: Masimo Corporation
    Inventors: Jeroen Poeze, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Ferdyan Lesmana, Massi Joe E. Kiani, Greg Olsen
  • Patent number: 10849536
    Abstract: An oximeter probe is user configurable for being in an absolute reporting mode and a relative reporting mode for measured values. The measured values for the absolute and relative modes include absolute oxygen saturation, relative oxygen saturation, absolute hemoglobin content, relative hemoglobin content, absolute blood volume, relative blood volume. The relative modes and absolute modes for determining and reporting relative or absolute hemoglobin content or relative or absolute blood volume for individual patients are beneficial when determining the efficacy of administered medications, such as epinephrine, that effect blood flow, but not oxygen saturation, in tissue, such as skin. The oximeter probe in these relative modes displays the efficacy of the administered medication as reported values for relative hemoglobin content or relative blood volume fall or rise.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: December 1, 2020
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Robert Lohman, Risal Djohan, Scott Coleridge
  • Patent number: 10827976
    Abstract: The present disclosure provides devices and methods for improved hemodynamic monitoring, including devices for characterizing hemodynamic activity within a tissue or region of interest.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 10, 2020
    Assignees: The Trustees of the University of Pennsylvania, The Children's Hospital of Philadelphia
    Inventors: David R. Busch, Jr., Ashwin B. Parthasarathy, Wesley B. Baker, Malavika Chandra, Rickson C. Mesquita, Daniel J. Licht, Arjun G. Yodh, Kenneth Abramson
  • Patent number: 10827957
    Abstract: An oximeter probe includes a probe unit or a base unit and a probe tip where the probe tip has a number of sources and detectors that can be accessed individually or in differing combinations for measuring tissue oxygen saturation at different tissue depth in tissue. A processor of the oximeter probe controls a multiplexer that is coupled to the detectors for selectively collecting measurement information from the detectors via the multiplexer. The oximeter probe is user programmable via one or more input devices on the oximeter probe for selecting the particular sources and detectors to collect measurement information from by the processor.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 10, 2020
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Jennifer Elizabeth Keating, Scott Coleridge
  • Patent number: 10820863
    Abstract: An oximeter probe that takes into account tissue color (e.g., skin color or melanin content) to improve accuracy when determining oxygen saturation of tissue. Light is transmitted from a light source into tissue having melanin (e.g., eumelanin or pheomelanin). Light reflected from the tissue is received by a detector. A compensation factor is determined to account for absorption due to the melanin. The oximeter uses this compensation factor and determines a melanin-corrected oxygen saturation value.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 3, 2020
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Kimberly Merritt Shultz, Alex Michael Margiott, George Edward Kechter
  • Patent number: 10813562
    Abstract: The invention provides a body-worn system that continuously measures pulse oximetry and blood pressure, along with motion, posture, and activity level, from an ambulatory patient. The system features an oximetry probe that comfortably clips to the base of the patient's thumb, thereby freeing up their fingers for conventional activities in a hospital, such as reading and eating. The probe secures to the thumb and measures time-dependent signals corresponding to LEDs operating near 660 and 905 nm. Analog versions of these signals pass through a low-profile cable to a wrist-worn transceiver that encloses a processing unit. Also within the wrist-worn transceiver is an accelerometer, a wireless system that sends information through a network to a remote receiver, e.g. a computer located in a central nursing station.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: October 27, 2020
    Assignee: SOTERA WIRELESS, INC.
    Inventors: Jim Moon, Devin McCombie, Marshal Dhillon, Matthew Banet
  • Patent number: 10799123
    Abstract: An on-site device for detecting presence of a liquid from a site and a method for detecting presence of a liquid from a site using the on-site device, the device comprising a moisture detector arranged to detect the presence of the liquid based on one or more electrical characteristics of the liquid; a first optical detector assembly coupled to the moisture detector, the first optical detector assembly being configured to be activated upon detection of the presence of the liquid by the moisture detector; and wherein upon activation, the first optical detector assembly is configured to detect a substance in the liquid based on one or more optical characteristics of the substance.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: October 13, 2020
    Assignees: Singapore University of Technology and Design, Changi General Hospital Pte Ltd
    Inventors: Juan Pablo Forero Cort├ęs, Suranga Chandima Nanayakkara, Shaohui Foong, Chang Yin Chionh
  • Patent number: 10799160
    Abstract: A regional oximetry pod drives optical emitters on regional oximetry sensors and receives the corresponding detector signals in response. The sensor pod has a dual sensor connector configured to physically attach and electrically connect one or two regional oximetry sensors. The pod housing has a first housing end and a second housing end. The dual sensor connector is disposed proximate the first housing end. The housing at least partially encloses the dual sensor connector. A monitor connector is disposed proximate a second housing end. An analog board is disposed within the pod housing and is in communications with the dual sensor connector. A digital board is disposed within the pod housing in communications with the monitor connector.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: October 13, 2020
    Assignee: Masimo Corporation
    Inventors: Ammar Al-Ali, Kevin Forrest, David Dalke, Walter M. Weber
  • Patent number: 10786187
    Abstract: An oximeter probe determines an oxygen saturation for the tissue and determines a quality value for the oxygen saturation and associated measurements of the tissue. The quality value is calculated from reflectance data received at the detectors of the oximeter probe. The oximeter probe then displays a value for the oxygen saturation with the error value to indicate a quality level for the oxygen saturation and associated values used to calculate oxygen saturation.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 29, 2020
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Alex Michael Margiott, Jennifer Elizabeth Keating, Kimberly Merritt Shultz, Scott Coleridge, Joseph Heanue
  • Patent number: 10772542
    Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: September 15, 2020
    Assignee: Masimo Corporation
    Inventors: Walter M. Weber, Ammar Al-Ali, Mohamed K. Diab, Marcelo M. Lamego
  • Patent number: 10772541
    Abstract: Systems, devices and methods for noninvasive analysis of tissue, by irradiating a surface of the tissue with infrared radiation such that an interaction of the radiation with a component of the tissue other than water in two spectral bands is substantially identical, measuring an intensity of the radiation that emerges from the tissue in each of the spectral bands, determining change in at least one of shape and intensity of signals received by the at least one radiation detector, calculating a relative absorption by the tissue of radiation in one of the first and second spectral bands relative to absorption by the tissue of radiation in the other of the first and second spectral bands, and determining concentration of a predetermined substance, in accordance with the calculated relative absorption and in accordance with determined change in the received signal.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: September 15, 2020
    Assignee: I. R. Med Ltd.
    Inventors: Ronnie Klein, Arkadi Zilberman, Yaniv Cohen, Ben Zion Dekel
  • Patent number: 10765350
    Abstract: A light-based method and technique for measuring the static and average plasma glucose concentration over a prolonged period of time. More specifically, the disclosure relates to a method that utilizes mathematical analysis of appendage mobile LED flash IR light transmittance, absorption and scattering by using high resolution mobile camera data to estimate the concentration of glucose and glycated hemoglobin (HbA1c) in millimoles per liter (mmol/L).
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: September 8, 2020
    Assignee: ANALYTICS FOR LIFE INC.
    Inventors: Sunny Gupta, Timothy Burton, Matthew Howe-Patterson
  • Patent number: 10758166
    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: March 25, 2020
    Date of Patent: September 1, 2020
    Assignee: Masimo Corporation
    Inventors: Jeroen Poeze, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Ferdyan Lesmana, Massi Joe E. Kiani, Greg Olsen
  • Patent number: 10750983
    Abstract: Disclosed herein is a physiological measurement system that can automatically adjust the number of wavelengths used based on the quality of a sensor signal that is reflective of an optical radiation detected at a sensor after tissue attenuation. The signal quality is examined to determine if it is sufficient to support the use of a full set of wavelengths. If it is determined to be insufficient to support the full set, a reduced number of wavelengths is used.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: August 25, 2020
    Assignee: Cercacor Laboratories, Inc.
    Inventors: Walter M. Weber, Ammar Al-Ali
  • Patent number: 10750986
    Abstract: A laparoscopic medical device includes an oximeter sensor at its tip, which allows the making of oxygen saturation measurements laparoscopically. The device can be a unitary design, wherein a laparoscopic element includes electronics for the oximeter sensor at a distal end (e.g., opposite the tip). The device can be a multiple piece design (e.g., two-piece design), where some electronics is in a separate housing from the laparoscopic element, and the pieces (or portions) are removably connected together. The laparoscopic element can be removed and disposed of; so, the electronics can be reused multiple times with replacement laparoscopic elements. The electronics can include a processing unit for control, computation, or display, or any combination of these. However, in an implementation, the electronics can connect wirelessly to other electronics (e.g., another processing unit) for further control, computation, or display, or any combination of these.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: August 25, 2020
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Todd Louis Harris, Edward Gerald Solomon, Winston Sun, Alan Baldwin, Scott Coleridge, Mark Lonsinger
  • Patent number: 10743803
    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 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: March 30, 2020
    Date of Patent: August 18, 2020
    Assignee: Masimo Corporation
    Inventors: Jeroen Poeze, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Ferdyan Lesmana, Massi Joe E. Kiani, Greg Olsen
  • Patent number: 10729337
    Abstract: The present application relates to systems and methods for non-invasively determining at least one of left ventricular end diastolic pressure (LVEDP) or pulmonary capillary wedge pressure (PCWP) in a subject's heart, comprising: receiving, by a computer, a plurality of signals from a plurality of non-invasive sensors that measure a plurality of physiological effects that are correlated with functioning of said subject's heart, said plurality of physiological effects including at least one signal correlated with left ventricular blood pressure and at least one signal correlated with timing of heartbeat cycles of said subject's heart; training a machine learning model on said computer using said plurality of signals for periods of time in which said plurality of signals were being generated during a heart failure event of said subject's heart; determining said LVEDP or PCWP using said machine learning model at a time subsequent to said training and subsequent to said heart failure event.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 4, 2020
    Assignees: The Johns Hopkins University, Boston Scientific Scimed Inc.
    Inventors: Qian Liu, Nichaluk Leartprapun, Jackline Wanjala, Soumyadipta Acharya, Andrew Bicek, Viachaslau Barodka, Umang Anand, Majd Alghatrif, David Kass, B. Westbrook Bernier, Chao-Wei Hwang, Peter Johnston, Trent Langston