Method and device for determining elapsed sensor life

  • US 8,665,091 B2
  • Filed: 06/30/2009
  • Issued: 03/04/2014
  • Est. Priority Date: 05/08/2007
  • Status: Active Grant
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First Claim
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1. A method of operating an analyte monitoring system comprising:

  • providing a signal associated with initiation of an analyte sensor;

    providing a count from an incrementing counter, wherein the count is temporarily associated with the signal associated with the initiation of the analyte sensor;

    periodically incrementing the count;

    storing the count temporally associated with the signal associated with the initiation of the analyte sensor, wherein when sensor life of the initiated analyte sensor has not expired and a system failure is detected, continuing use of the initiated analyte sensor based at least in part on the stored count;

    providing a new sensor count from a new sensor counter; and

    incrementing the new sensor count only when a new sensor is first initiated, wherein the new sensor count indicates the number of sensors used.

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