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Method and device for early signal attenuation detection using blood glucose measurements

  • US 8,103,456 B2
  • Filed: 01/29/2009
  • Issued: 01/24/2012
  • Est. Priority Date: 01/29/2009
  • Status: Expired due to Fees
First Claim
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1. A method, comprising:

  • receiving one or more analyte sensor data from an analyte sensor in fluid contact with interstitial fluid under a skin layer;

    receiving a reference measurement value associated with an analyte level;

    determining a sensitivity parameter based on the received one or more analyte sensor data and the reference measurement value;

    performing a probability analysis based on prior analyte sensor data to determine presence of signal attenuation, the probability analysis including comparing the determined sensitivity parameter to a probability distribution function that provides a likelihood of the analyte sensor with the determined sensitivity parameter in signal attenuation condition; and

    generating an output value based on the probability analysis.

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