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Apparatus and method for controlling insulin infusion with state variable feedback

  • US 7,806,886 B2
  • Filed: 12/22/2006
  • Issued: 10/05/2010
  • Est. Priority Date: 06/03/1999
  • Status: Expired due to Term
First Claim
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1. A method of infusing insulin into a body of a user, the method comprising:

  • delivering a basal amount of insulin to a body of a user at a predetermined basal rate;

    determining a bolus amount of insulin to be delivered to the body of the user,determining at least one state variable;

    determining, based on the at least one state variable, an additional amount of insulin to be delivered to the body of the user with the bolus amount of insulin;

    infusing the determined bolus amount of insulin and the determined additional amount of insulin to the user; and

    reducing the basal rate by the additional amount of insulin delivered with the bolus amount of insulin.

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