公开(公告)号：US11382527B2

公开(公告)日：2022-07-12

申请号：US17115752

申请日：2020-12-08

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Ning Yang

IPC: A61B5/0537 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/00 ,  A61M5/158 ,  A61B5/0538 ,  A61B5/1473 ,  A61B5/1495 ,  A61B5/1486 ,  G01N27/02 ,  A61M5/172 ,  A61M5/142

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US12295711B2

公开(公告)日：2025-05-13

申请号：US18100610

申请日：2023-01-24

Applicant: Medtronic MiniMed, Inc.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Ning Yang

IPC: A61B5/0537 ,  A61B5/00 ,  A61B5/0538 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/1473 ,  A61B5/1486 ,  A61B5/1495 ,  A61M5/142 ,  A61M5/158 ,  A61M5/172 ,  G01N27/02

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US12019039B2

公开(公告)日：2024-06-25

申请号：US16158043

申请日：2018-10-11

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Keith Nogueira ,  Taly G. Engel ,  Xiaolong Li ,  Bradley C. Liang ,  Rajiv Shah ,  Jaeho Kim ,  Mike C. Liu ,  Andy Y. Tsai ,  Andrea Varsavsky ,  Fei Yu

IPC: G01N27/02 ,  G01N33/487 ,  G01N33/49

CPC classification number: G01N27/026 ,  G01N33/48707 ,  G01N33/49

Abstract: Electrochemical impedance spectroscopy (EIS) may be used in conjunction with continuous glucose monitoring (CGM) to enable identification of valid and reliable sensor data, as well implementation of Smart Calibration algorithms.

公开(公告)号：US20240115153A1

公开(公告)日：2024-04-11

申请号：US18527818

申请日：2023-12-04

Applicant: Medtronic MiniMed, Inc.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Michael E. Miller ,  Ning Yang

IPC: A61B5/0537 ,  A61B5/00 ,  A61B5/0538 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/1473 ,  A61B5/1486 ,  A61B5/1495 ,  A61M5/158 ,  G01N27/02

CPC classification number: A61B5/0537 ,  A61B5/0538 ,  A61B5/14532 ,  A61B5/1468 ,  A61B5/1473 ,  A61B5/14865 ,  A61B5/1495 ,  A61B5/7221 ,  A61B5/7246 ,  A61M5/1582 ,  G01N27/026 ,  A61M2005/1726

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US11844598B2

公开(公告)日：2023-12-19

申请号：US16391666

申请日：2019-04-23

Applicant: Medtronic MiniMed, Inc.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Michael E. Miller ,  Ning Yang

IPC: A61B5/0537 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/00 ,  A61M5/158 ,  A61B5/0538 ,  A61B5/1473 ,  A61B5/1495 ,  A61B5/1486 ,  G01N27/02 ,  A61M5/172 ,  A61M5/142

CPC classification number: A61B5/0537 ,  A61B5/0538 ,  A61B5/1468 ,  A61B5/1473 ,  A61B5/1495 ,  A61B5/14532 ,  A61B5/14865 ,  A61B5/7221 ,  A61B5/7246 ,  A61M5/1582 ,  G01N27/026 ,  A61B5/6849 ,  A61M5/14244 ,  A61M5/14276 ,  A61M2005/1726

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US11717179B2

公开(公告)日：2023-08-08

申请号：US17855865

申请日：2022-07-01

Applicant: Medtronic MiniMed, Inc.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Ning Yang

IPC: A61B5/0537 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/00 ,  A61M5/158 ,  A61B5/0538 ,  A61B5/1473 ,  A61B5/1495 ,  A61B5/1486 ,  G01N27/02 ,  A61M5/172 ,  A61M5/142

CPC classification number: A61B5/0537 ,  A61B5/0538 ,  A61B5/1468 ,  A61B5/1473 ,  A61B5/1495 ,  A61B5/14532 ,  A61B5/14865 ,  A61B5/7221 ,  A61B5/7246 ,  A61M5/1582 ,  G01N27/026 ,  A61B5/6849 ,  A61M5/14244 ,  A61M5/14276 ,  A61M2005/1726

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US20220378315A1

公开(公告)日：2022-12-01

申请号：US17855865

申请日：2022-07-01

Applicant: Medtronic MiniMed, Inc.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Ning Yang

IPC: A61B5/0537 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/00 ,  A61M5/158 ,  A61B5/0538 ,  A61B5/1473 ,  A61B5/1495 ,  A61B5/1486 ,  G01N27/02

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US10321844B2

公开(公告)日：2019-06-18

申请号：US14466138

申请日：2014-08-22

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Michael E. Miller ,  Ning Yang

IPC: A61B5/1495 ,  A61B5/053 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/00 ,  A61B5/1473 ,  A61B5/1486 ,  G01N27/02 ,  A61M5/158 ,  A61M5/172 ,  A61M5/142

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US20240423495A1

公开(公告)日：2024-12-26

申请号：US18829615

申请日：2024-09-10

Applicant: Medtronic MiniMed, Inc.

Inventor： Andrea Varsavsky ,  Fei Yu ,  Ning Yang

IPC: A61B5/0537 ,  A61B5/00 ,  A61B5/0538 ,  A61B5/145 ,  A61B5/1468 ,  A61B5/1473 ,  A61B5/1486 ,  A61B5/1495 ,  A61M5/142 ,  A61M5/158 ,  A61M5/172 ,  G01N27/02

Abstract: Electrochemical Impedance Spectroscopy (EIS) is used in conjunction with continuous glucose monitors and continuous glucose monitoring (CGM) to enable in-vivo sensor calibration, gross (sensor) failure analysis, and intelligent sensor diagnostics and fault detection. An equivalent circuit model is defined, and circuit elements are used to characterize sensor behavior.

公开(公告)号：US20240345011A1

公开(公告)日：2024-10-17

申请号：US18735347

申请日：2024-06-06

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Keith Nogueira ,  Taly G. Engel ,  Xiaolong Li ,  Bradley C. Liang ,  Rajiv Shah ,  Jaeho Kim ,  Mike C. Liu ,  Andy Y. Tsai ,  Andrea Varsavsky ,  Fei Yu

IPC: G01N27/02 ,  G01N33/487 ,  G01N33/49

CPC classification number: G01N27/026 ,  G01N33/48707 ,  G01N33/49

Abstract: A method of optimizing operation of a glucose sensor includes performing an electrochemical impedance spectroscopy (EIS) procedure to obtain imaginary impedance values for an electrode of a glucose sensor, calculating a change value as a difference between a threshold reference for the imaginary impedance values and a most-recent imaginary impedance value, and obtaining measurements of the calibration factor for the glucose sensor. The method also includes comparing the change value to a first threshold and the calibration factor to a second threshold and determining, based on the comparison, whether sensor data from the glucose sensor is valid.