Patent · US Active

Method and device for determining a concentration of at least one analyte

US11125712B2 · kind B2 · utility

1Cited by

0References

13Claims

0Family size

Assignee

Roche Diagnostics Operations, Inc. · US

Inventors

Michael Marquant · Mannheim, DE
Samuel Evgin · Ludwigshafen, DE
Melanie Klein · Neustadt, DE

Key dates

Filing date	Jun 14, 2019
Grant date	Sep 21, 2021
Priority date	—
Expiry date	Jun 14, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/3274
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for determining a concentration of at least one analyte in bodily fluid, comprising: a signal generation step, wherein an excitation voltage signal is generated by a signal generator, wherein the excitation voltage signal comprises a poly frequent alternating current (AC) voltage and a direct current (DC) voltage profile, wherein the poly frequent AC voltage comprises at least two frequencies; a signal application step, wherein the excitation voltage signal is applied to at least two measurement electrodes; a measurement step, wherein a response is measured by using the measurement electrodes; an evaluation step, wherein an AC current response for each frequency and a DC current response are evaluated from the response; a determination step, wherein the concentration of the analyte is determined from the DC current response and from one or both of the phase and impedance information by using at least one predetermined relationship.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.