Patents by Inventor Gezheng WEN

Gezheng WEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220354384
    Abstract: Systems and methods are disclosed to determine a measure of patient weight using existing medical device sensors, comprising receiving acceleration information of a patient and, if a value of the acceleration information exceeds an activity threshold over a measurement window, detecting patient steps in the measurement window using the acceleration information, determining a patient step rate over the measurement window using the detected patient steps, determining a measure of patient step force for the measurement window, and determining a measure of patient weight using the determined patient step rate and measure of patient step force.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 10, 2022
    Inventors: Jonathan Bennett Shute, Rezwan Ahmed, Gezheng Wen, Pramodsingh Hirasingh Thakur
  • Patent number: 11480561
    Abstract: Systems, devices, and methods for monitoring and assessing immunotherapy toxicity are discussed. An exemplary system receives physiologic information from a patient using an ambulatory medical device. In response to an immunotherapy such as CAR T-cell therapy, the system determines a toxicity indication using the received physiologic information. A therapy can be initiated or adjusted using the toxicity indication.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: October 25, 2022
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Gezheng Wen, Qi An, Pramodsingh Hirasingh Thakur, Deepa Mahajan
  • Publication number: 20220095953
    Abstract: Systems and methods to are disclosed to determine a sleep disordered breathing parameter of a patient, including receiving respiration information of the patient and temperature information of the patient and to determine the sleep disordered breathing parameter of the patient using the received respiration information and temperature information of the patient.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 31, 2022
    Inventors: Gezheng Wen, Pramodsingh Hirasingh Thakur, John D. Hatlestad, Qi An
  • Patent number: 11257261
    Abstract: A computed tomography (CT) image display system (10) includes a mapping unit (32), which receives reconstructed volumetric image data (28) of a subject with values in Hounsfield Units (HU), and a set of reference settings (34), adjusts the set of reference settings (34) to an adjusted set of reference settings (35) according to a pixel-value distribution analysis of the HU values selected according to the reference settings (34), and maps the values in HU to gray scale values according to the adjusted reference settings (35).
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 22, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Amar Chandra Dhanantwari, Gezheng Wen
  • Patent number: 11172875
    Abstract: Systems and methods for sensing respiration from a subject are discussed. An embodiment of a respiration monitoring system may include a respiration analyzer circuit to select a physiologic signal from a plurality of signals of different types indicative of respiration, such as between first and second physiologic signals that are respectively detected using first and second detection algorithms, and to compute one or more respiration parameters using the selected signal. The system may select or adjust a respiration detection algorithm for detecting the respiration parameters. The physiologic signal, or the respiration detection algorithm, may each be selected based on a signal characteristic or a patient condition. A cardiopulmonary event may be detected using the computed respiration parameter.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: November 16, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Gezheng Wen, Pramodsingh Hirasingh Thakur, John D. Hatlestad, Jonathan Bennett Shute, Qi An, Bin Mi, Yi Zhang
  • Publication number: 20210252287
    Abstract: Methods and systems for providing closed loop control of stimulation provided by an implantable stimulator device are disclosed herein. The disclosed methods and systems use a neural feature prediction model to predict a neural feature, which is used as a feedback control variable for adjusting stimulation. The predicted neural feature is determined based on one or more stimulation artifact features. The disclosed methods and systems can be used to provide closed loop feedback in situations, such as sub-perception therapy, when neural features cannot be readily directly measured.
    Type: Application
    Filed: December 29, 2020
    Publication date: August 19, 2021
    Inventors: Rosana Esteller, Tianhe Zhang, Qi An, Gezheng Wen
  • Publication number: 20200375490
    Abstract: Systems and methods for classifying a cardiac arrhythmia are discussed. An exemplary system includes a correlator circuit to generate autocorrelation sequences using information of cardiac activity of a subject, including signal segments taken from a cardiac signal at respective elapsed time with respect to reference time. The correlator circuit can generate a correlation image using the autocorrelation sequences. The correlation image may be constructed by stacking the autocorrelation sequences according to the elapsed time of signal segments. An arrhythmia classifier circuit can classify the cardiac activity of the subject as one of arrhythmia types using the correlation image.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 3, 2020
    Inventors: Keith L. Herrmann, Krzysztof Z. Siejko, Deepa Mahajan, Gezheng Wen
  • Publication number: 20200170515
    Abstract: Systems and methods for monitoring heart failure (HF) status in a patient are discussed. An exemplary system includes a gait analyzer circuit than can receive gait or balance information, and generate a gait feature such as gait speed or a gait pattern. The system includes a HF detector circuit that can detect patient HF status, or to predict patient risk of a future worsening heart failure (WHF) event, using the gait feature. In some examples, the system may trigger sensing physiologic information according to the detected gait, and detect patient HF status using the sensed physiologic information. The system can initiate or adjust a heart failure therapy according to the HF status or the WHF risk.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 4, 2020
    Inventors: Gezheng Wen, Bin Mi, Qi An, Pramodsingh Hirasingh Thakur
  • Publication number: 20200121293
    Abstract: A medical system includes a physiological monitoring system configured to sense a physiological signal and record physiological signal data indicative of the patient's physiological state. The physiological monitoring system including a controller, a storage device, at least one sensor operatively coupled to the controller, and a first communication component. The system includes a mobile device configured to facilitate sensor placement, the mobile device comprising a controller, a display device, and a second communication component configured to facilitate communication between the physiological monitoring system and the mobile device. The controller of the mobile device is configured to provide a graphical user interface (GUI) on the display device, the GUI including information about a proper placement of the at least one sensor, wherein the proper placement is determined based on the physiological signal data.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 23, 2020
    Inventors: Gezheng Wen, Bin Mi, Stephen J. Hahn, Keith R. Maile
  • Publication number: 20200057050
    Abstract: Systems, devices, and methods for monitoring and assessing immunotherapy toxicity are discussed. An exemplary system receives physiologic information from a patient using an ambulatory medical device. In response to an immunotherapy such as CAR T-cell therapy, the system determines a toxicity indication using the received physiologic information. A therapy can be initiated or adjusted using the toxicity indication.
    Type: Application
    Filed: July 22, 2019
    Publication date: February 20, 2020
    Inventors: Gezheng Wen, Qi An, Pramodsingh Hirasingh Thakur, Deepa Mahajan
  • Publication number: 20190365316
    Abstract: This document discusses, among other things, systems and methods to receive physiologic information from a patient using an ambulatory medical device, and to determine an indication of cardiotoxicity using the received physiologic information.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Pramodsingh Hirasingh Thakur, Viktoria A. Averina, Gezheng Wen, Jonathan Bennett Shute, Robert J. Sweeney, Bin Mi
  • Publication number: 20190223782
    Abstract: Systems and methods for sensing respiration from a subject are discussed. An embodiment of a respiration monitoring system may include a respiration analyzer circuit to select a physiologic signal from a plurality of signals of different types indicative of respiration, such as between first and second physiologic signals that are respectively detected using first and second detection algorithms, and to compute one or more respiration parameters using the selected signal. The system may select or adjust a respiration detection algorithm for detecting the respiration parameters. The physiologic signal, or the respiration detection algorithm, may each be selected based on a signal characteristic or a patient condition. A cardiopulmonary event may be detected using the computed respiration parameter.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 25, 2019
    Inventors: Gezheng Wen, Pramodsingh Hirasingh Thakur, John D. Hatlestad, Jonathan Bennett Shute, Qi An, Bin Mi, Yi Zhang
  • Publication number: 20190012815
    Abstract: A computed tomography (CT) image display system (10) includes a mapping unit (32), which receives reconstructed volumetric image data (28) of a subject with values in Hounsfield Units (HU), and a set of reference settings (34), adjusts the set of reference settings (34) to an adjusted set of reference settings (35) according to a pixel-value distribution analysis of the HU values selected according to the reference settings (34), and maps the values in HU to gray scale values according to the adjusted reference settings (35).
    Type: Application
    Filed: July 1, 2016
    Publication date: January 10, 2019
    Inventors: Amar Chandra DHANANTWARI, Gezheng WEN