Patent ID: 8649840

Claim:
An amperometric sensor device comprising: a structural body which comprises a first plurality of reservoirs, each of the first plurality of reservoirs having at least one opening in the structural body and a working electrode located in said reservoir; analyte sensor chemistry located within each of the first plurality of reservoirs and deposited on at least the working electrode; one or more auxiliary electrodes located on the structural body outside of the first plurality of reservoirs and a reference electrode located inside each reservoir, or one or more auxiliary electrodes located on the structural body outside of the first plurality of reservoirs and one or more reference electrodes located outside of the first plurality of reservoirs; at least one reservoir cap closing the at least one opening of each of the first plurality of reservoirs to isolate the working electrode and analyte sensor chemistry within the reservoir from an analyte outside of the reservoir to prevent contact with the analyte sensor chemistry; and means for rupturing or displacing each reservoir cap independently to permit the analyte from outside of the reservoir to contact the analyte sensor chemistry, wherein the one or more reference electrodes, the one or more auxiliary electrodes, or both, are adapted to be operatively coupled with two or more of the working electrodes.