Patent ID: 11857344
Assignee: BIOLINQ INCORPORATED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 10:
11. A method, comprising:
monitoring a counter electrode voltage at a counter electrode of a microneedle array-based analyte monitoring device, the counter electrode positioned on a surface of a distal portion of a first microneedle in the microneedle array;
identifying a characteristic of the counter electrode voltage that meets or exceeds a threshold value;
determining, in response to identifying the characteristic of the counter electrode voltage that exceeds the threshold value, a correlation between the counter electrode voltage and a sensing current, the sensing current generated at a surface of a working electrode of the microneedle array-based analyte monitoring device; and
applying, based on the characteristic of the counter electrode voltage and the correlation, a mode of operation to the microneedle array-based analyte monitoring device;
wherein the working electrode comprises an electrochemical sensing coating configured to generate the sensing current indicative of a redox reaction of an analyte at the surface of the working electrode, the working electrode positioned on a surface of a distal portion of a second microneedle in a microneedle array;
wherein the microneedle array-based analyte monitoring device further comprises a reference electrode positioned on a surface of a distal portion of a third microneedle in the microneedle array, and an analog front end configured to maintain a fixed potential relationship between the working electrode and the reference electrode and to allow potential of the counter electrode to swing to sustain the redox reaction at the working electrode.