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Fully Automated Control System for Type I Diabetes

  • US 20080208113A1
  • Filed: 05/15/2006
  • Published: 08/28/2008
  • Est. Priority Date: 05/13/2005
  • Status: Active Grant
First Claim
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1. A system for automatic control of blood glucose level of a subject, comprising:

  • a glucose sensor operative to continually sense a glucose level of the subject and generate a corresponding glucose level signal;

    a delivery device operative to deliver respective doses of insulin and a counter-regulatory agent to the subject in response to respective insulin and counter-regulatory-agent dose control signals; and

    a controller operative to generate the insulin and counter-regulatory-agent dose control signals as a function of the weight of the subject and time-varying glucose levels of the subject as represented by the glucose level signal over time, the controller employing a control algorithm including;

    generating the insulin and counter-regulatory-agent dose control signals based on (a) the glucose level signal, and (b) accumulation of insulin in the subject due to finite rate of utilization.

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