Patents Examined by Chu Chuan Liu
  • Patent number: 10987036
    Abstract: Fetal tissue oxygenation may be performed transabdominally by, for example, receiving a plurality of detected electronic signals that correspond to light emitted from a pregnant mammal's abdomen and a fetus contained therein that has been detected by the detector and converted into the detected electronic signal. An indication of a depth of the fetus within the pregnant mammal's abdomen may be received and a portion of the detected electronic signals that correspond to light that was incident upon the fetus may be isolated responsively to the indication of the depth of the fetus using, for example, time of flight of photons that correspond to the detected electronic signals. A fetal tissue oxygen saturation level may then be determined using the isolated portion of the detected electronic signals that correspond to light that was incident upon the fetus.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: April 27, 2021
    Assignee: RAYDIANT OXIMETRY, INC.
    Inventors: Neil Padharia Ray, Mark Andrew Rosen, Adam Jacobs, Denise Zarins, Kenneth Holt, Jana M Kainerstorfer, David Boas
  • Patent number: 10980455
    Abstract: A pulse oximeter may reduce power consumption in the absence of overriding conditions. Various sampling mechanisms may be used individually or in combination. Various parameters may be monitored to trigger or override a reduced power consumption state. In this manner, a pulse oximeter can lower power consumption without sacrificing performance during, for example, high noise conditions or oxygen desaturations.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: April 20, 2021
    Assignee: MASIMO CORPORATION
    Inventor: Ammar Al-Ali
  • Patent number: 10973411
    Abstract: Method, and the associated device, for examining a biological tissue, in particular dental tissue or tooth enamel of one or several teeth, the method including the steps of taking into account at least the fluorescence of the tissue detected in a first wavelength range and the fluorescence of the tissue detected in a second wavelength range. The device can be a surgery microscope with one or several filters. The filters can be swiveled into or out the illumination beam path or the optical path of the light source of the device.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: April 13, 2021
    Assignee: CARL ZEISS MEDITEC AG
    Inventor: Marco Wilzbach
  • Patent number: 10973445
    Abstract: A method and device for optical detection of Kawasaki disease and of the treatment result of Kawasaki disease are provided. At least three light waves of different wavelengths are propagated through a to-be-detected body portion of a healthy subject and a to-be-detected body portion of a person with (or suspected of) Kawasaki disease and are received after absorption, and hence attenuation, by tissues in the respective to-be-detected body portions. Attenuation of the light waves is compared against the absorption spectrum of human tissues to obtain the hemoglobin levels and water contents of the to-be-detected body portions. The hemoglobin level and water content of the person with (or suspected of) Kawasaki disease are compared with those of the healthy subject respectively so that a medical professional can evaluate the treatment result of (or diagnosis) Kawasaki disease according to the differences obtained as well as clinical experience.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: April 13, 2021
    Inventor: Chien-Ming Lo
  • Patent number: 10966643
    Abstract: Systems and devices of the present disclosure provide automated detection and tracking of carbon monoxide inhalation through non-invasive optical spectroscopy. A wearable device includes a light source coupled to the base and directing light towards a subject and a photodetector coupled to the base to receive light emitted by the light source through or reflected the subject. The light source emits light at a wavelength spectrum corresponding to a carboxyhemoglobin absorption spectrum and an oxyhemoglobin absorption spectrum. Biometric circuitry is coupled to the photodetector to receive a signal from the photodetector and process the signal to determine an intensity of the wavelengths present in the light received at the photodetector. The intensity of the wavelengths is indicative of a level of carbon monoxide inhalation associated with the subject.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: April 6, 2021
    Assignee: Fitbit, Inc.
    Inventors: Hamed Vavadi, Lindsey Michelle Sunden, Peter W. Richards, Chris Hanrahan Sarantos
  • Patent number: 10966618
    Abstract: A light-emitting section (21) emits light to be irradiated on a body of a patient (100). A light-receiving section (22) outputs a signal corresponding to an intensity of light which has been transmitted through or reflected from the body of the patient (100). A pulse-amplitude Index acquiring section (32) analyzes amplitude of the signal to acquire a pulse-amplitude Index of the patient (100). A pulse determining section (33) determines presence or absence of a pulse of the patient (100) in accordance with the pulse-amplitude Index. A notifying section (34) notifies a result of determination made by the pulse determining section (33).
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 6, 2021
    Assignees: NIHON KOHDEN CORPORATION, KYOTO UNIVERSITY
    Inventors: Tomoyoshi Natsui, Satoshi Hayashi, Tsutomu Wakabayashi, Taku Iwami, Toshihiro Hatakeyama, Tetsuro Nishimura, Takayuki Otani
  • Patent number: 10959652
    Abstract: A pulse oximeter may reduce power consumption in the absence of overriding conditions. Various sampling mechanisms may be used individually or in combination. Various parameters may be monitored to trigger or override a reduced power consumption state. In this manner, a pulse oximeter can lower power consumption without sacrificing performance during, for example, high noise conditions or oxygen desaturations.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: March 30, 2021
    Assignee: MASIMO CORPORATION
    Inventor: Ammar Al-Ali
  • Patent number: 10960433
    Abstract: A method of protecting an in-vivo sensor includes forming a sensing surface on a surface of the in-vivo sensor, the sensing surface including a functionalized monolayer that will bind to an analyte of interest; and coating the sensing surface of the sensor with a bioabsorbable polymeric coating including a bioabsorbable polymer; wherein the bioabsorbable polymeric coating is configured to protect the in-vivo sensor until needed for implantation.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 30, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Shu-Jen Han, Bharat Kumar, George S. Tulevski
  • Patent number: 10952651
    Abstract: Methods and systems for sensor calibration and sensor glucose (SG) fusion are used advantageously to improve the accuracy and reliability of orthogonally redundant glucose sensor devices, which may include optical and electrochemical glucose sensors. Calibration for both sensors may be achieved via fixed-offset and/or dynamic regression methodologies, depending, e.g., on sensor stability and Isig-Ratio pair correlation. For SG fusion, respective integrity checks may be performed for SG values from the optical and electrochemical sensors, and the SG values calibrated if the integrity checks are passed. Integrity checks may include checking for sensitivity loss, noise, and drift. If the integrity checks are failed, in-line sensor mapping between the electrochemical and optical sensors may be performed prior to calibration.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 23, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang
  • Patent number: 10953203
    Abstract: The present disclosure relates to guidewire devices having shapeable tips and effective torquability. A guidewire device includes a core having a proximal section and a tapered distal section. A tube structure is coupled to the core such that the tapered distal section of the core extends into and distally beyond the tube structure. The portion of the core extending distally beyond the tube forms a shapeable tip. A polymer covering encompasses the tip. The tip is configured to reduce the tendency of resilient forces from the tube structure to disrupt a customized shape of the tip.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: March 23, 2021
    Assignee: Scientia Vascular, LLC
    Inventors: John A. Lippert, Edward J. Snyder
  • Patent number: 10956538
    Abstract: The present disclosure relates to a low-power measuring device. In one implementation, the low-power measuring device includes a first sensor for measuring a first value, the first value being a measurement of a variable, and a counter unit for generating a first counter value indicative of a first elapsed time since the first value is measured by the first sensor. The low-power measuring device further includes at least one processor configured to send the first value to a remote apparatus, send the first counter value to the remote apparatus, cause the remote apparatus to determine the first elapsed time based on the first value and the first counter value, and cause the remote apparatus to determine a first obtained time at which the first value is measured by the first sensor based on the determined first elapsed time and a reference time of the remote apparatus.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: March 23, 2021
    Assignee: Verily Life Sciences LLC
    Inventor: Russell Mirov
  • Patent number: 10945648
    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: September 24, 2020
    Date of Patent: March 16, 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: 10939837
    Abstract: A medical device for measuring blood flow through a blood vessel of a mammal includes a conductive elastomer having a variable resistance. A frame is at least partially surrounding at least a portion of the conductive elastomer, the conductive elastomer is suspended within the frame. A mechanical amplification element is slidably engaged to the conductive elastomer, the mechanical amplification element being configured to slide within the frame and to contact skin of the mammal over the blood vessel when the frame is positioned over the blood vessel, the mechanical amplification element being configured to be displaced when the artery pulsates and changes the resistance of the elastomer.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: March 9, 2021
    Assignee: IDA Health, Inc.
    Inventors: Philippe Lange, Giovanni Amoroso, David Lawrence Camp, Jr., Gabriele Buttignol, Gerrit de Vries
  • Patent number: 10932708
    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 17, 2017
    Date of Patent: March 2, 2021
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Todd Louis Harris, Edward Gerald Solomon, Winston Sun, Alan Baldwin, Scott Coleridge, Mark Lonsinger
  • Patent number: 10925523
    Abstract: Provided are microfluidic systems for monitoring a biofluid property and related methods. Specially configured microfluidic networks and associated structural support and functional elements, including flexible substrates, capping layers, and fluidic conduits and controllers, provide reliable biofluid collection. Optical components and indicators provide a reliable and readily observable readout, including of any of a number of biofluid properties, including directly from biofluid collected in the microfluidic network.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 23, 2021
    Assignees: NORTHWESTERN UNIVERSITY, THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: John A. Rogers, Jungil Choi, Tyler R. Ray, Johnathan T. Reeder, Yurina Sekine, Amay J. Bandodkar, Yi Zhang, Hexia Guo, Sungbong Kim, Diana Ostojich
  • Patent number: 10918289
    Abstract: Disclosed herein is a ring-shaped wearable device for detecting biometrics with a light source and a photodetector directed towards a digit wearing the ring-shaped device. The ring can thus detect oxygen saturation of a wearer based on light transmitted through the wearer's finger. The ring can include power saving measures to extend the battery life. A motion sensor can help determine opportune moments for data collection such as when the wearer is still. The motion sensor can be used to remove noise from the data caused by motion. After data is collected or during data collection, the ring can wirelessly communicate the data to another portable electronic device such as a phone or watch.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: February 16, 2021
    Assignee: FITBIT, INC.
    Inventors: Jaclyn Leverett Wasson, Peter W. Richards, Lindsey Michelle Sunden, Corey Stephen O'Connor, Conor Joseph Heneghan, Xi Zhang, Hamed Vavadi, Chris Hanrahan Sarantos, Peter Colin Dess
  • Patent number: 10918280
    Abstract: The present invention is directed to a bio-fluid detector such as a hemoglobin detector having the capability of receiving, storing and transmitting health information utilizing a portable transmitter and receiver including electronic PDAs such as cell phones. Further, the present invention utilizes a non-invasive hemoglobin detector that is connected to a portable transmitter-receiver such as PDAs including, but not limited to, cell phones.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 16, 2021
    Assignee: The Johns Hopkins University
    Inventors: Soumyadipta Acharya, Ashley Polhemus, Kevin Colbert, Vaishakhi Mayya, Aaron Enten, Joshua Budman
  • Patent number: 10921274
    Abstract: The apparatus includes a sensor having a multi-portion dielectric composite. A microstrip transmission line is formed on the dielectric composite and includes an input section, radiator portion, and an output section. The dielectric material adjacent the radiator portion is selected to substantially match that of the certain portions of a live organism being sensed, allowing other constituents of the organism to be sensed. This allow the radiator portion to effectively respond as if it were embedded inside the organism, removing substantial uncertainly from the measurement process. By then applying a plurality of signals to the sensor, the reflected and transmitted components of the signal can be measured and used to determine the amount of certain constituents are present in the organism.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: February 16, 2021
    Inventors: John W. Hodges, Marc E. Rippen
  • Patent number: 10918321
    Abstract: An apparatus and method for non-invasively determining a blood oxygen parameter value of a subject's tissue is provided. An embodiment of the method includes the steps of: a) providing a spectrophotometric sensor that includes a processing portion and a transducer, b) detecting at least a portion of transmitted light after passage through the subject's tissue and producing initial signal data from the detected light; and c) using the processing portion to: (i) determine a value representative of an attenuation of at least one wavelength of light detected; (ii) determine whether the representative attenuation value is outside a predefined range of attenuation values; and (iii) determine the blood oxygen parameter value using a first interrogation or an alternate interrogation setting.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: February 16, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventor: Paul B. Benni
  • Patent number: 10912502
    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