Analyte monitoring device and methods of use

  • US 7,190,988 B2
  • Filed: 11/24/2003
  • Issued: 03/13/2007
  • Est. Priority Date: 04/30/1998
  • Status: Expired due to Term
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First Claim
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1. A method of detecting failures in an implanted analyte-responsive sensor, the method comprising:

  • implanting an analyte-responsive sensor into a patient, the analyte-responsive sensor comprising N working electrodes, where N is an integer and is two or greater, and a common counter electrode;

    obtaining a signal generated at one of the N working electrodes and a signal generated at the common counter electrode; and

    determining failure of the analyte-responsive sensor if the signal from the common counter electrode is not N times the signal from the one of the N working electrodes.

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