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Safety limits for closed-loop infusion pump control

  • US 8,784,370 B2
  • Filed: 12/15/2011
  • Issued: 07/22/2014
  • Est. Priority Date: 09/07/2001
  • Status: Active Grant
First Claim
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1. An infusion pump system to deliver an infusion formulation to a user, comprising:

  • a sensing device to monitor glucose levels in the user;

    a computing element to receive sensing device input and to adjust delivery of the infusion formulation as a function of the rate of change of the glucose levels in the user over time, wherein the infusion formulation delivered to the user is limited to maximum and minimum values; and

    a pump in communication with the computing element to deliver the infusion formulation to the user;

    wherein delivery of the infusion formulation is limited to a maximum value determined as a percentage higher than a pre-programmed nominal basal rate of delivery.

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