Method and apparatus for providing analyte sensor calibration

  • US 9,398,872 B2
  • Filed: 08/28/2014
  • Issued: 07/26/2016
  • Est. Priority Date: 07/31/2007
  • Status: Expired due to Fees
First Claim
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1. A method of determining a composite sensitivity for an analyte sensor of an electronic analyte monitoring system to compensate for an outlier or erroneous sensitivity, the method comprising:

  • positioning an analyte sensor in fluid contact with bodily fluid in a human body;

    generating, with the analyte sensor, first data corresponding to a monitored analyte level in the bodily fluid;

    determining a new sensor sensitivity, using a processor, based on the generated first data when a first difference between a current sensor sensitivity and a prior sensor sensitivity is not within a predetermined range;

    determining, using the processor, if a second difference between the new sensor sensitivity and one of the current sensor sensitivity or the prior sensor sensitivity is within the predetermined range;

    after it is determined that the second difference between the new sensor sensitivity and one of the current sensor sensitivity or the prior sensor sensitivity is within the predetermined range, then determining, using the processor, a composite sensitivity based on the new sensor sensitivity and the one of the current sensor sensitivity or the prior sensor sensitivity that was used in determining that the second difference is within the predetermined range; and

    generating, using the processor, second data based on calibrating the first data using the composite sensitivity, the second data corresponding to a monitored analyte level.

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