Systeme und Verfahren zur In-Vitro- und In-Vivo-Beurteilung der Verkapselung einer Sensoroberfläche

Details

Veröffentlichungs-Nr.

EP4445836

Aktenzeichen

EP24166311

Anmeldetag

26. März 2024

Veröffentlichung

19. Februar 2025

Rechtsraum

EP

IPC

A61B5/0538A61B5/145A61B5/1473A61B5/1495A61B5/00

Abstract

A glucose sensor includes a working electrode, sensor electronics configured to periodically measure electrode current signal (Isig) values for the working electrode and counter voltage values (Vcntr) for the glucose sensor, one or more processors, and one or more processor-readable media. The one or more processor-readable media stores instructions which, when executed by the one or more processors, cause performance of: generating Electrochemical Impedance Spectroscopy (EIS) parameter values for the working electrode based on an EIS procedure; estimating a reaction surface area of the glucose sensor based on least one of Isig values, Vcntr values, or the EIS parameter values; determining a difference between the estimated reaction surface area and an expected reaction surface area of the glucose sensor; comparing the determined difference to a predetermined threshold value; and adjusting a calibration factor when the determined difference is below the predetermined threshold value.

Anmelder

Firma

Medtronic MiniMed, Inc.

Land

🇺🇸 USA

Fachgebiete