Analyte sensor sensitivity attenuation mitigation

  • US 10,045,739 B2
  • Filed: 03/23/2015
  • Issued: 08/14/2018
  • Est. Priority Date: 09/30/2008
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a glucose sensor having a first sensing area and a second sensing area configured for fluid contact with biofluid under a skin surface for monitoring glucose level in the biofluid;

    one or more processors operatively coupled to the glucose sensor; and

    a memory operatively coupled to the one or more processors and configured to store instructions which, when executed by the one or more processors, receives a first and second signals respectively from the first and second sensing areas of the glucose sensor, detects a dropout in a signal level associated with one of the first signal or the second signal, compares the first signal and the second signal to determine a variation between the first signal and the second signal, the dropout is detected, confirms the one of the first signal or the second signal as a valid glucose sensor signal corresponding to the monitored glucose level when the determined variation between the first signal and the second signal is less than a predetermined threshold level, determines a glucose level based on the valid glucose sensor signal, and provides the determined glucose level for output on a display.

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