The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 28, 2026

Filed:

Mar. 14, 2024
Applicant:

Medtronic Minimed, Inc., Northridge, CA (US);

Inventors:

Robert M. Mckinlay, West Hills, CA (US);

Quyen B. Ong, Arcadia, CA (US);

Xin Heng, Arcadia, CA (US);

Weihong Cui, La Crescenta, CA (US);

Assignee:

Medtronic MiniMed, Inc., Northridge, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/02 (2006.01); G01N 27/327 (2006.01);
U.S. Cl.
CPC ...
G01N 27/3272 (2013.01); G01N 27/02 (2013.01); G01N 27/3274 (2013.01);
Abstract

An analyte sensor includes a microcontroller, a base layer, a conductive layer disposed on the base layer where the conductive layer includes a working electrode configured to provide a current signal in presence of glucose, an interference rejection membrane ('IRM') layer disposed on the working electrode where the IRM layer is negatively charged, and an enzyme layer disposed on the IRM layer where the enzyme layer includes an enzyme selected to generate a detectable electrical signal upon exposure to the glucose. The microcontroller is configured to process an electrochemical impedance spectroscopy (EIS) parameter to determine a state of the IRM layer.


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