Patents by Inventor Anuj M. Patel

Anuj M. Patel 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: 20240374174
    Abstract: An analyte sensor device includes a housing, a sensor, and a printed circuit board assembly (PCBA) within the housing and including a circuit and a first plurality of contacts. The sensor includes a proximal end within the housing and a distal end outside of the housing. The proximal end includes a second plurality of contacts electrically connected to the first plurality of contacts on the PCBA. The distal end includes one or more electrodes configured to measure a concentration level of an analyte in a body of a user. The circuit is operable to detect electrical connection between the first plurality of contacts and the second plurality of contacts within the housing while the distal end of the sensor is outside the body of the user or a fluid.
    Type: Application
    Filed: July 22, 2024
    Publication date: November 14, 2024
    Inventors: David Yueh-hua CHOY, Ellis GARAI, Melissa TSANG, Anuj M. PATEL
  • Patent number: 12082924
    Abstract: An analyte sensor apparatus including a sensing portion including one or more electrodes including a working electrode and one or more contacts for electrically connecting the sensor portion to control circuitry (e.g., a printed circuit board assembly, PCBA); and a circuit comprising the one or more contacts; wherein the circuit detects an electrical connection between the control circuitry without requiring exposure of the sensing portion to a fluid.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: September 10, 2024
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: David Yueh-Hua Choy, Ellis Garai, Melissa Tsang, Anuj M. Patel
  • Patent number: 12082910
    Abstract: Systems and methods are described herein for utilizing a photoacoustic sensor for estimating analyte concentration levels. Also described here are training methods for training an analyte sensor to more accurately estimate an analyte concentration level on the basis of a received acoustic signal.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: September 10, 2024
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Li Zhou, Raymond M. Russell, Peter Schultz, Anuj M. Patel, Carol Chen, Roshanne Malekmadani, Lynette To, Hsiao-Yu S. Kow, Raghavendhar Gautham
  • Publication number: 20230404448
    Abstract: A method for compensating for a life-lengthening agent for a glucose sensor includes accessing first and second electrochemical impedance spectroscopy (EIS) values of at least one parameter based on first and second EIS procedures performed on EIS signals from a working electrode of the glucose sensor, calculating a change in the at least one parameter between the first and second EIS values, estimating a concentration of the agent based on the change in the at least one parameter, and calculating a model effect in response to the concentration. In a case where the model effect is not greater than the threshold, the method further includes adjusting a sensor glucose value based on the concentration and sensor signals from the working electrode, and displaying the adjusted sensor glucose value.
    Type: Application
    Filed: April 19, 2023
    Publication date: December 21, 2023
    Inventors: Ellis Garai, Sarkis D. Aroyan, Anuj M. Patel, Ashwin K. Rao
  • Publication number: 20230157598
    Abstract: A method includes monitoring, via a device including an electrochemical cell, an electrical current that is proportional to an impedance of the electrochemical cell, and responsive to determining that the electrical current satisfies a threshold, measuring, via the device, a plurality of impedances of the electrochemical cell corresponding to a plurality of frequencies. The method further includes determining a charge transfer conductance and a solution resistance based on the plurality of impedances at fewer than four of the corresponding plurality of frequencies and determining the presence of electrochemical interference based on the solution resistance and the charge transfer conductance. The method further includes outputting an alert based on the determination of the presence of electrochemical interference.
    Type: Application
    Filed: November 19, 2021
    Publication date: May 25, 2023
    Inventors: Davy Tong, Anuj M. Patel, Sarnath Chattaraj, Hsi Fusselman, Chia-Hung Chiu, Timothy Kwa, Nor Akmaliza Rais, Michael Weikai Chang, Vijaykumar Raorane
  • Publication number: 20230080129
    Abstract: A device for determining a glucose level of a patient includes a set of electrodes comprising a first working electrode, a second working electrode, a counter electrode, and a reference electrode. The reference electrode is electrically coupled to the counter electrode. The device further includes a memory and one or more processors implemented in circuitry and in communication with the memory. The one or more processors configured to determine a sensor signal based on current flowing between the first working electrode and the counter electrode and determine an open circuit potential (OCP) signal based on a voltage across the second working electrode and the reference electrode. The one or more processors are further configured to determine the glucose level of the patient based on the sensor signal and the OCP signal and output an indication of the glucose level.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 16, 2023
    Inventors: Ellis Garai, Sarkis D. Aroyan, Anuj M. Patel, Michael E. Miller
  • Publication number: 20230004815
    Abstract: An example method for calibrating a glucose sensor includes determining, by one or more processors, a set of electrical parameters for the glucose sensor of a plurality of glucose sensors and determining, by the one or more processors, a cluster for the glucose sensor based on the set of electrical parameters. Each cluster of the plurality of clusters identifies respective configuration information. In this example, the method includes configuring, by the one or more processors, the glucose sensor to determine a glucose level of a patient based on configuration information identified by the determined cluster.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 5, 2023
    Inventors: Elaine Gee, Francesca Piccinini, Li Zhou, Chi A Tran, Farhad Batmanghelich, Leonardo Nava-Guerra, Juan Enrique Arguelles Morales, Anuj M. Patel, Sarkis D. Aroyan
  • Publication number: 20220031205
    Abstract: An analyte sensor apparatus including a sensing portion including one or more electrodes including a working electrode and one or more contacts for electrically connecting the sensor portion to control circuitry (e.g., a printed circuit board assembly, PCBA); and a circuit comprising the one or more contacts; wherein the circuit detects an electrical connection between the control circuitry without requiring exposure of the sensing portion to a fluid.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 3, 2022
    Applicant: Medtronic MiniMed, Inc.
    Inventors: David Yueh-hua Choy, Ellis Garai, Melissa Tsang, Anuj M. Patel
  • Patent number: 10856784
    Abstract: A method of initializing a sensor with a voltage sequence including a ramped voltage combined with a biphasic voltage pulse. The initialization scheme results in faster in-vitro sensor run-in and stabilization times. In various examples, the in-vitro sensor stabilization time is reduced from 200 minutes to 40-55 minutes (a reduction by a factor of least 5 as compared to a non-initialized sensor). In addition, staircase voltage initialization is implemented adaptively so that the voltage step size and sweep rates are changed depending on the state of the sensor (characterized by ISIG magnitude). As a result, individual sensors can be initialized in a customized manner rather than by using a general hardwired and harsh initialization scheme.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 8, 2020
    Assignee: MEDTRONIC MINIMED, INC.
    Inventor: Anuj M. Patel
  • Publication number: 20200352450
    Abstract: Systems and methods are described herein for utilizing a photoacoustic sensor for estimating analyte concentration levels. Also described here are training methods for training an analyte sensor to more accurately estimate an analyte concentration level on the basis of a received acoustic signal.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Inventors: Li Zhou, Raymond M. Russell, Peter Schultz, Anuj M. Patel, Carol Chen, Roshanne Malekmadani, Lynette To, Hsiao-Yu S. Kow, Raghavendhar Gautham
  • Publication number: 20200352484
    Abstract: Systems and methods are described herein for utilizing a photoacoustic sensor for estimating analyte concentration levels. Also described here are training methods for training an analyte sensor to more accurately estimate an analyte concentration level on the basis of a received acoustic signal.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Inventors: Li Zhou, Raymond M. Russell, Peter Schultz, Anuj M. Patel, Carol Chen, Roshanne Malekmadani, Lynette To, Hsiao-Yu S. Kow, Raghavendhar Gautham
  • Patent number: 10575767
    Abstract: A method for monitoring an analyte within the body of a patient, an analyst sensor, and an analyte monitoring apparatus are presented here. In accordance with certain embodiments, the method for monitoring an analyte within the body of a patient includes implanting an analyte sensor at a sensor placement site in the patient. The analyte sensor includes a reference electrode, a counter electrode, a primary working electrode having a first structure, and an auxiliary working electrode having a second structure different from the first structure. The method includes communicating a primary signal from the primary working electrode and an auxiliary signal from the auxiliary working electrode to a processor. Further, the method includes monitoring the primary signal and the auxiliary signal with the processor to characterize a change in a physiological characteristic at the sensor placement site.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: March 3, 2020
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Anuj M. Patel, Zachary Decke, Bradley C. Liang
  • Publication number: 20190000358
    Abstract: A method of initializing a sensor with a voltage sequence including a ramped voltage combined with a biphasic voltage pulse. The initialization scheme results in faster in-vitro sensor run-in and stabilization times. In various examples, the in-vitro sensor stabilization time is reduced from 200 minutes to 40-55 minutes (a reduction by a factor of least 5 as compared to a non-initialized sensor). In addition, staircase voltage initialization is implemented adaptively so that the voltage step size and sweep rates are changed depending on the state of the sensor (characterized by ISIG magnitude). As a result, individual sensors can be initialized in a customized manner rather than by using a general hardwired and harsh initialization scheme.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Applicant: Medtronic MiniMed, Inc.
    Inventor: Anuj M. Patel
  • Publication number: 20160345873
    Abstract: A method for monitoring an analyte within the body of a patient, an analyst sensor, and an analyte monitoring apparatus are presented here. In accordance with certain embodiments, the method for monitoring an analyte within the body of a patient includes implanting an analyte sensor at a sensor placement site in the patient. The analyte sensor includes a reference electrode, a counter electrode, a primary working electrode having a first structure, and an auxiliary working electrode having a second structure different from the first structure. The method includes communicating a primary signal from the primary working electrode and an auxiliary signal from the auxiliary working electrode to a processor. Further, the method includes monitoring the primary signal and the auxiliary signal with the processor to characterize a change in a physiological characteristic at the sensor placement site.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 1, 2016
    Inventors: Anuj M. Patel, Zachary Decke, Bradley C. Liang