Method and device for providing offset model based calibration for analyte sensor

  • US 10,089,446 B2
  • Filed: 09/03/2013
  • Issued: 10/02/2018
  • Est. Priority Date: 01/29/2009
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • positioning a first portion of an analyte sensor in fluid contact with bodily fluid under a skin surface;

    electrically coupling a second portion of the analyte sensor with a power source to provide power to the analyte sensor while the first portion of the analyte sensor is positioned in fluid contact with the bodily fluid under the skin surface;

    generating, with the analyte sensor, signals corresponding to an analyte level in the bodily fluid;

    generating a sampled data based on the signals from the analyte sensor;

    determining that the sampled data is associated with an abnormal sensor sensitivity event;

    estimating an offset value based on the sampled data;

    determining a time varying offset based on the estimated offset value;

    estimating the analyte level based on the determined time varying offset; and

    providing a predictive alarm to a user based on the estimated analyte level.

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