Variable rate closed loop control and methods

  • US 8,622,988 B2
  • Filed: 08/31/2008
  • Issued: 01/07/2014
  • Est. Priority Date: 08/31/2008
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • determining periodically at a first medication delivery rate adjustment frequency whether to adjust a medication delivery rate;

    monitoring a closed loop control operation including an analyte level associated with signal levels received from an analyte sensor at a predetermined frequency;

    determining a variation in the monitored analyte level;

    modifying the first medication delivery rate adjustment frequency to a second medication delivery rate adjustment frequency based on the determined variation in the monitored analyte level; and

    determining periodically at the second medication delivery rate adjustment frequency whether to adjust the medication delivery rate;

    wherein the modification to the first medication delivery rate adjustment frequency is performed dynamically based in part on the determined variation in the monitored analyte level.

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