Patents by Inventor Raghavendhar Gautham

Raghavendhar Gautham 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: 20150272486
    Abstract: Disclosed are methods, apparatuses, etc. for glucose sensor signal reliability analysis.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 1, 2015
    Inventors: Bradley Liang, Kenneth W. Cooper, Raghavendhar Gautham, Rajiv Shah
  • Patent number: 9033878
    Abstract: Disclosed are methods, apparatuses, etc. for glucose sensor signal reliability analysis.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: May 19, 2015
    Assignee: Medtronic Minimed, Inc.
    Inventors: Bradley Liang, Kenneth W. Cooper, Raghavendhar Gautham, Rajiv Shah
  • Publication number: 20150073244
    Abstract: Disclosed are a system and method for determining a metric and/or indicator of a reliability of a blood glucose sensor in providing glucose measurements. In one aspect, the metric and/or indicator may be computed based, at least in part, on an observed trend associated with signals generated by the blood glucose sensor.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 12, 2015
    Inventors: Rebecca K. Gottlieb, Ying Luo, Raghavendhar Gautham, Bradley Liang, Anirban Roy, Kenneth W. Cooper, Rajiv Shah, Barry Keenan
  • Patent number: 8919180
    Abstract: Disclosed are a system and method for determining a metric and/or indicator of a reliability of a blood glucose sensor in providing glucose measurements. In one aspect, the metric and/or indicator may be computed based, at least in part, on an observed trend associated with signals generated by the blood glucose sensor.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 30, 2014
    Assignee: Medtronic Minimed, Inc.
    Inventors: Rebecca K. Gottlieb, Ying Luo, Raghavendhar Gautham, Bradley Liang, Anirban Roy, Kenneth W. Cooper, Rajiv Shah, Barry Keenan
  • Publication number: 20130331674
    Abstract: A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters.
    Type: Application
    Filed: February 27, 2013
    Publication date: December 12, 2013
    Inventors: Ning Yang, Raghavendhar Gautham, Bradley C. Liang, Rajiv Shah, Catherine M. Szyman, Michael E. Miller, Jenn-Hann Larry Wang, Yiwen Li, Wayne A. Morgan, Paris Chen, Robert C. Mucic, Genival D. de Barros, Carlos A. Callirgos, Manjunath Sirigiri, Joseph Paul Brinson
  • Publication number: 20130332085
    Abstract: A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters.
    Type: Application
    Filed: February 27, 2013
    Publication date: December 12, 2013
    Inventors: Ning Yang, Raghavendhar Gautham, Bradley C. Liang, Rajiv Shah
  • Publication number: 20130328572
    Abstract: A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters.
    Type: Application
    Filed: February 27, 2013
    Publication date: December 12, 2013
    Inventors: Jenn-Hann Larry Wang, Michael E. Miller, Raghavendhar Gautham, Yiwen Li, Rajiv Shah
  • Publication number: 20130313130
    Abstract: The invention disclosed herein includes sensors having three dimensional configurations that allow expansive “360°” sensing (i.e. sensing analyte from multiple directions) in the environments in which such sensors are disposed. Embodiments of the invention provide analyte sensors having foldable substrates adapted to produce optimized configurations of electrode elements as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.
    Type: Application
    Filed: February 27, 2013
    Publication date: November 28, 2013
    Inventors: Megan E. Little, Katherine T. Wolfe, Raghavendhar Gautham, Bradley Chi Liang, Rajiv Shah
  • Publication number: 20120125075
    Abstract: Disclosed are a system and method for determining a metric and/or indicator of a reliability of a blood glucose sensor in providing glucose measurements. In one aspect, the metric and/or indicator may be computed based, at least in part, on an observed trend associated with signals generated by the blood glucose sensor.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 24, 2012
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Rebecca K. Gottlieb, Ying Luo, Raghavendhar Gautham, Bradley Liang, Anirban Roy, Kenneth W. Cooper, Rajiv Shah, Barry Keenan
  • Publication number: 20120103835
    Abstract: The subject matter disclosed herein relates to systems, methods and/or devices for calibrating sensor data to be used in estimating a blood glucose concentration. A relationship between sensor signal values and reference readings may be used to estimate a relationship between sensor signal values and measurements of blood glucose concentration.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Inventors: Bradley Liang, Kenneth W. Cooper, Raghavendhar Gautham, Rajiv Shah
  • Publication number: 20120108935
    Abstract: Disclosed are methods, apparatuses, etc. for glucose sensor signal reliability analysis.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Inventors: Bradley Liang, Kenneth W. Cooper, Raghavendhar Gautham, Rajiv Shah
  • Publication number: 20120108933
    Abstract: The subject matter disclosed herein relates to systems, methods and/or devices for calibrating sensor data to be used in estimating a blood glucose concentration. A relationship between sensor signal values and reference readings may be used to estimate a relationship between sensor signal values and measurements of blood glucose concentration.
    Type: Application
    Filed: September 21, 2011
    Publication date: May 3, 2012
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Bradley Liang, Kenneth W. Cooper, Raghavendhar Gautham, Rajiv Shah, Keith Nogueira