Patents by Inventor John Shen

John Shen 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).

  • Patent number: 12539027
    Abstract: Described herein are systems and methods for controlling the temperature of a distal window of an endoscope, the method comprising: generating light from at least one light source of an illuminator and directing the light to the distal window of the endoscope; reflecting a temperature-dependent fraction of the light from the distal window; detecting the temperature-dependent fraction of the light; and modulating the light from the at least one light source based on the detected temperature-dependent fraction of the light to control the temperature of the distal window.
    Type: Grant
    Filed: March 4, 2024
    Date of Patent: February 3, 2026
    Assignee: Stryker Corporation
    Inventors: David B. Bennett, Benjamin H. Feingold, John Shen
  • Publication number: 20250169688
    Abstract: A system includes an illumination source and an imaging apparatus that includes an electronic rolling shutter imager and is configured for sequentially resetting rows of pixels of the rolling shutter imager from a first row to a last row, sequentially reading charge accumulated at the rows of pixels from the first row to the last row, wherein the first row is read after resetting the last row, controlling the illumination source to illuminate the tissue of the subject with illumination light for an illumination period that lasts longer than a vertical blanking period, wherein the vertical blanking period is the period from the resetting of the last row to the reading of the first row, and generating an image frame from the readings of charge accumulated at the rows of pixels, wherein at least one reading of charge accumulated at a row of pixels is removed or replaced.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 29, 2025
    Applicant: Stryker Corporation
    Inventors: William Huei Liang CHANG, Bryan LARSON, John SHEN, Benjamin FEINGOLD, Ajay RAMESH
  • Publication number: 20250120576
    Abstract: A method is provided for adjusting a viewing direction for an articulatable medical device. The method comprises: receiving a command indicating adjusting a viewing direction of the articulatable medical device; determining a sensing region from an imaging sensor based at least in part on the viewing direction, the imaging sensor is located at a distal end of the articulatable medical device; generating an image based on signals from the sensing region; and processing the image to correct at least one of a projection distortion, contrast and color of the image.
    Type: Application
    Filed: December 9, 2024
    Publication date: April 17, 2025
    Inventors: Michael Herron, Akihiro Takagi, John Shen
  • Patent number: 12201270
    Abstract: A system includes an illumination source and an imaging apparatus that includes an electronic rolling shutter imager and is configured for sequentially resetting rows of pixels of the rolling shutter imager from a first row to a last row, sequentially reading charge accumulated at the rows of pixels from the first row to the last row, wherein the first row is read after resetting the last row, controlling the illumination source to illuminate the tissue of the subject with illumination light for an illumination period that lasts longer than a vertical blanking period, wherein the vertical blanking period is the period from the resetting of the last row to the reading of the first row, and generating an image frame from the readings of charge accumulated at the rows of pixels, wherein at least one reading of charge accumulated at a row of pixels is removed or replaced.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: January 21, 2025
    Assignee: Stryker Corporation
    Inventors: William Huei Liang Chang, Bryan Larson, John Shen, Benjamin Feingold, Ajay Ramesh
  • Patent number: 12201271
    Abstract: A method of imaging tissue of a subject using an electronic rolling shutter imager includes sequentially resetting rows of pixels of the rolling shutter imager from a first row to a last row for a first amount of time; illuminating the tissue of the subject with illumination light over an illumination period that begins once the last row of the rolling shutter imager has been reset and lasts for at least the first amount of time; accumulating charge at the rows of pixels over at least the illumination period based on light that is received from the tissue of the subject while the tissue of the subject is illuminated with the illumination light; sequentially reading charge accumulated at the rows of pixels from the first row to the last row once the illumination period has ended; and generating an image frame from the rows of pixels.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: January 21, 2025
    Assignee: Stryker Corporation
    Inventors: William Huei Liang Chang, Bryan Larson, John Shen, Benjamin Feingold, Ajay Ramesh
  • Publication number: 20240285160
    Abstract: Described herein are systems and methods for controlling the temperature of a distal window of an endoscope, the method comprising: generating light from at least one light source of an illuminator and directing the light to the distal window of the endoscope; reflecting a temperature-dependent fraction of the light from the distal window; detecting the temperature-dependent fraction of the light; and modulating the light from the at least one light source based on the detected temperature-dependent fraction of the light to control the temperature of the distal window.
    Type: Application
    Filed: March 4, 2024
    Publication date: August 29, 2024
    Applicant: Stryker Corporation
    Inventors: David B. BENNETT, Benjamin H. FEINGOLD, John SHEN
  • Patent number: 11918189
    Abstract: A method of using an endoscopic system includes generating, by a light system, electromagnetic waves, the light system including a source of imaging light and a separate source of heating light; directing the electromagnetic waves from the light system to a window at a distal end of an endoscope; determining if the window of the endoscope is configured to allow a first portion of the electromagnetic waves to pass therethrough while absorbing a second portion of the electromagnetic waves in order to heat the window; allowing or not allowing activation of the source of heating light depending on if the window of the endoscope is determined to be configured to allow the first portion of the electromagnetic waves to pass therethrough while absorbing the second portion of the electromagnetic waves.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: March 5, 2024
    Assignee: Stryker Corporation
    Inventors: David B. Bennett, Benjamin H. Feingold, John Shen
  • Publication number: 20230351606
    Abstract: A system for displaying medical imaging data comprising one or more data inputs, one or more processors, and one or more displays, wherein the one or more data inputs are configured for receiving first image data generated by a first medical imaging device, wherein the first image data comprises a field of view (FOV) portion and a non-FOV portion, and the one or more processors are configured for identifying the non-FOV portion of the first image data and generating cropped first image data by removing at least a portion of the non-FOV portion of the first image data, and transmitting the cropped first image data for display in a first portion of the display and additional information for display in a second portion of the display.
    Type: Application
    Filed: June 30, 2023
    Publication date: November 2, 2023
    Applicant: Stryker Corporation
    Inventors: Amit MAHADIK, John SHEN, Ramanan PARAMASIVAN, Ben FEINGOLD, Robert JONES, Brandon HUNTER
  • Publication number: 20230320579
    Abstract: Anti-fogging system for an endoscope including an endoscope having an outer housing, an imaging arrangement, and a distal window. A filter lens is located at the distal window, with the filter lens allowing a first portion of electromagnetic light to pass therethrough while absorbing a second portion of electromagnetic light in order to heat the filter lens.
    Type: Application
    Filed: November 28, 2022
    Publication date: October 12, 2023
    Applicant: Stryker Corporation
    Inventors: David B. BENNETT, Benjamin H. FEINGOLD, John SHEN
  • Publication number: 20230320577
    Abstract: A system includes an illumination source and an imaging apparatus that includes an electronic rolling shutter imager and is configured for sequentially resetting rows of pixels of the rolling shutter imager from a first row to a last row, sequentially reading charge accumulated at the rows of pixels from the first row to the last row, wherein the first row is read after resetting the last row, controlling the illumination source to illuminate the tissue of the subject with illumination light for an illumination period that lasts longer than a vertical blanking period, wherein the vertical blanking period is the period from the resetting of the last row to the reading of the first row, and generating an image frame from the readings of charge accumulated at the rows of pixels, wherein at least one reading of charge accumulated at a row of pixels is removed or replaced.
    Type: Application
    Filed: May 1, 2023
    Publication date: October 12, 2023
    Applicant: Stryker Corporation
    Inventors: William Huei Liang CHANG, Bryan LARSON, John SHEN, Benjamin FEINGOLD, Ajay RAMESH
  • Publication number: 20230270324
    Abstract: A method of imaging tissue of a subject using an electronic rolling shutter imager includes sequentially resetting rows of pixels of the rolling shutter imager from a first row to a last row for a first amount of time; illuminating the tissue of the subject with illumination light over an illumination period that begins once the last row of the rolling shutter imager has been reset and lasts for at least the first amount of time; accumulating charge at the rows of pixels over at least the illumination period based on light that is received from the tissue of the subject while the tissue of the subject is illuminated with the illumination light; sequentially reading charge accumulated at the rows of pixels from the first row to the last row once the illumination period has ended; and generating an image frame from the rows of pixels.
    Type: Application
    Filed: May 1, 2023
    Publication date: August 31, 2023
    Applicant: Stryker Corporation
    Inventors: William Huei Liang CHANG, Bryan LARSON, John SHEN, Benjamin FEINGOLD, Ajay RAMESH
  • Patent number: 11694335
    Abstract: A system for displaying medical imaging data comprising one or more data inputs, one or more processors, and one or more displays, wherein the one or more data inputs are configured for receiving first image data generated by a first medical imaging device, wherein the first image data comprises a field of view (FOV) portion and a non-FOV portion, and the one or more processors are configured for identifying the non-FOV portion of the first image data and generating cropped first image data by removing at least a portion of the non-FOV portion of the first image data, and transmitting the cropped first image data for display in a first portion of the display and additional information for display in a second portion of the display.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: July 4, 2023
    Assignee: Stryker Corporation
    Inventors: Amit Mahadik, John Shen, Ramanan Paramasivan, Ben Feingold, Robert Jones, Brandon Hunter
  • Patent number: 11638517
    Abstract: A method of imaging tissue of a subject using an electronic rolling shutter imager includes sequentially resetting rows of pixels of the rolling shutter imager from a first row to a last row, sequentially reading charge accumulated at the rows of pixels from the first row to the last row, wherein the first row is read after resetting the last row, illuminating the tissue of the subject with illumination light for an illumination period that lasts longer than a vertical blanking period, wherein the vertical blanking period is the period from the resetting of the last row to the reading of the first row, and generating an image frame from the readings of charge accumulated at the rows of pixels, wherein at least one reading of charge accumulated at a row of pixels is removed or replaced to generate the image frame.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 2, 2023
    Assignee: Stryker Corporation
    Inventors: William Huei Liang Chang, Bryan Larson, John Shen, Benjamin Feingold, Ajay Ramesh
  • Patent number: 11581753
    Abstract: Some embodiments include a radiographic imaging system, comprising: a radiographic imager, including: an imaging array; imager control logic configured to control the imaging array; a power system configured to supply power to at least the imaging array and the imager control logic; a wireless power receiver configured to receive energy wirelessly and provide at least part of that energy to the power system; and a wireless communication transmitter; and a charging mat, including: a wired power input; a wireless power transmitter configured to transmit energy wirelessly; and a wireless communication receiver; wherein the wireless power receiver, the wireless power transmitter, the wireless communication receiver, and the wireless communication transmitter are positioned such that the radiographic imager can be placed on the charging mat where, simultaneously, the wireless power receiver is aligned with the wireless power transmitter and the wireless communication receiver is aligned with the wireless communica
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: February 14, 2023
    Assignee: Varex Imaging Corporation
    Inventors: Carlo Tognina, John Shen, Matt McCabe, Marcelo Costa
  • Patent number: 11510562
    Abstract: Anti-fogging system for an endoscope including an endoscope having an outer housing, an imaging arrangement, and a distal window. A filter lens is located at the distal window, with the filter lens allowing a first portion of electromagnetic light to pass therethrough while absorbing a second portion of electromagnetic light in order to heat the filter lens.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: November 29, 2022
    Assignee: Stryker Corporation
    Inventors: David B. Bennett, Benjamin H. Feingold, John Shen
  • Publication number: 20210159729
    Abstract: Some embodiments include a radiographic imaging system, comprising: a radiographic imager, including: an imaging array; imager control logic configured to control the imaging array; a power system configured to supply power to at least the imaging array and the imager control logic; a wireless power receiver configured to receive energy wirelessly and provide at least part of that energy to the power system; and a wireless communication transmitter; and a charging mat, including: a wired power input; a wireless power transmitter configured to transmit energy wirelessly; and a wireless communication receiver; wherein the wireless power receiver, the wireless power transmitter, the wireless communication receiver, and the wireless communication transmitter are positioned such that the radiographic imager can be placed on the charging mat where, simultaneously, the wireless power receiver is aligned with the wireless power transmitter and the wireless communication receiver is aligned with the wireless communica
    Type: Application
    Filed: May 1, 2020
    Publication date: May 27, 2021
    Applicant: Varex Imaging Corporation
    Inventors: Carlo Tognina, John Shen, Matt McCabe, Marcelo Costa
  • Publication number: 20200234439
    Abstract: A method of imaging tissue of a subject using an electronic rolling shutter imager includes sequentially resetting rows of pixels of the rolling shutter imager from a first row to a last row, sequentially reading charge accumulated at the rows of pixels from the first row to the last row, wherein the first row is read after resetting the last row, illuminating the tissue of the subject with illumination light for an illumination period that lasts longer than a vertical blanking period, wherein the vertical blanking period is the period from the resetting of the last row to the reading of the first row, and generating an image frame from the readings of charge accumulated at the rows of pixels, wherein at least one reading of charge accumulated at a row of pixels is removed or replaced to generate the image frame.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 23, 2020
    Applicant: Stryker Corporation
    Inventors: William CHANG, Bryan LARSON, John SHEN, Benjamin FEINGOLD, Ajay RAMESH
  • Publication number: 20200214550
    Abstract: Anti-fogging system for an endoscope including an endoscope having an outer housing, an imaging arrangement, and a distal window. A filter lens is located at the distal window, with the filter lens allowing a first portion of electromagnetic light to pass therethrough while absorbing a second portion of electromagnetic light in order to heat the filter lens.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 9, 2020
    Applicant: Stryker Corporation
    Inventors: David B. BENNETT, Benjamin H. FEINGOLD, John SHEN
  • Publication number: 20200184640
    Abstract: A system for displaying medical imaging data comprising one or more data inputs, one or more processors, and one or more displays, wherein the one or more data inputs are configured for receiving first image data generated by a first medical imaging device, wherein the first image data comprises a field of view (FOV) portion and a non-FOV portion, and the one or more processors are configured for identifying the non-FOV portion of the first image data and generating cropped first image data by removing at least a portion of the non-FOV portion of the first image data, and transmitting the cropped first image data for display in a first portion of the display and additional information for display in a second portion of the display.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 11, 2020
    Applicant: Stryker Corporation
    Inventors: Amit MAHADIK, John SHEN, Ramanan PARAMASIVAN, Ben FEINGOLD, Robert JONES, Brandon HUNTER
  • Patent number: 10537236
    Abstract: Anti-fogging system for an endoscope including an endoscope having an outer housing, an imaging arrangement, and a distal window. A filter lens is located at the distal window, with the filter lens allowing a first portion of electromagnetic light to pass therethrough while absorbing a second portion of electromagnetic light in order to heat the filter lens.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 21, 2020
    Assignee: Stryker Corporation
    Inventors: David B. Bennett, Benjamin H. Feingold, John Shen