Robust closed loop control and methods

  • US 8,795,252 B2
  • Filed: 10/16/2009
  • Issued: 08/05/2014
  • Est. Priority Date: 08/31/2008
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • monitoring a closed loop control operation including signal levels received from an analyte sensor and automatic delivery of medication at least in part in response to the received analyte sensor signal levels;

    determining whether a signal level received from the analyte sensor is associated with a fault condition and a potential fault condition; and

    dynamically adjusting a current infusion rate executed by the closed loop control operation when it is determined that the signal level from the analyte sensor is associated with one of the fault condition or the potential fault condition;

    wherein a medication delivery rate is adjusted to a first predetermined range when the signal level is associated with the fault condition, and adjusted to a second predetermined range when the signal level is associated with the potential fault condition; and

    furtherwherein the first predetermined range is narrower compared to the second predetermined range.

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