09357958 is referenced by 2 patents and cites 106 patents.

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.

Title
Application of electrochemical impedance spectroscopy in sensor systems, devices, and related methods
Application Number
13/778416
Publication Number
9357958 (B2)
Application Date
February 27, 2013
Publication Date
June 7, 2016
Inventor
Rajiv Shah
Rancho Palos Verdes
CA, US
Bradley C Liang
Bloomfield Hills
MI, US
Raghavendhar Gautham
Los Angeles
CA, US
Ning Yang
Los Angeles
CA, US
Agent
Pillsbury Winthrop Shaw Pittman
Assignee
MEDTRONIC MINIMED
CA, US
IPC
A61M 5/142
A61M 5/172
A61B 5/053
A61B 5/00
G01N 27/416
A61B 5/1486
A61M 5/158
A61B 5/1459
G01N 33/66
A61B 5/1473
A61B 5/145
G01R 35/00
G01N 27/02
A61B 5/1495
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