Patents by Inventor Mike C. Liu

Mike C. Liu 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: 9649058
    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: April 24, 2014
    Date of Patent: May 16, 2017
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang
  • Patent number: 9603561
    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: April 24, 2014
    Date of Patent: March 28, 2017
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang
  • Publication number: 20150164383
    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: Application
    Filed: April 24, 2014
    Publication date: June 18, 2015
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang
  • Publication number: 20150164384
    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: Application
    Filed: April 24, 2014
    Publication date: June 18, 2015
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang
  • Publication number: 20150164385
    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: Application
    Filed: April 24, 2014
    Publication date: June 18, 2015
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang
  • Publication number: 20150164388
    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: Application
    Filed: April 24, 2014
    Publication date: June 18, 2015
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang
  • Publication number: 20150164389
    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: Application
    Filed: April 24, 2014
    Publication date: June 18, 2015
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Andrea Varsavsky, Xiaolong Li, Mike C. Liu, Yuxiang Zhong, Ning Yang