YANG, NING,GAUTHAM, RAGHAVENDHAR,LIANG, BRADLEY C.,SHAH, RAJIV,SZYMAN, CATHERINE M.,MILLER, MICHAEL E,,WANG, JENN-HANN LARRY,LI, YIWEN,MORGAN, WAYNE A.,CHEN, PARIS,MUCIC, ROBERT C.,DE BARROS, GENIVAL
申请号：
CA3074852
公开号：
CA3074852A1
申请日:
2013.05.24
申请国别(地区):
CA
年份:
2013
代理人:
摘要：
A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is appliedtomeasure values of impedance-related parameters for one or more sensingelectrodes. Theparameters may include real impedance, imaginary impedance, impedancemagnitude, and/orphase angle. The measured values of the impedance-related parameters are thenused inperforming sensor diagnostics, calculating a highly-reliable fused sensorglucose value basedon signals from a plurality of redundant sensing electrodes, calibratingsensors, detectinginterferents within close proximity of one or more sensing electrodes, andtesting surface areacharacteristics of electroplated electrodes. Advantageously, impedance-relatedparameterscan be defined that are substantially glucose-independent over specific rangesof frequencies.An Application Specific Integrated Circuit (ASIC) enables implementation ofthe EIS-baseddiagnostics, fusion algorithms, and other processes based on measurement ofEIS-basedparameters.
