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Methods and apparatuses for detecting occlusions in an ambulatory infusion pump

  • US 8,647,296 B2
  • Filed: 05/02/2011
  • Issued: 02/11/2014
  • Est. Priority Date: 10/29/1998
  • Status: Expired due to Term
First Claim
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1. An infusion pump for infusing fluid from a reservoir into a body of a user, the infusion pump comprising:

  • a housing;

    a drive mechanism including a motor and one or more drive train components contained within the housing and operatively coupled to the reservoir to deliver fluid from the reservoir through a fluid path into the body of the user;

    one or more electronic components to measure respective values of at least two different parameters associated with the motor or one of the drive train components; and

    a processor contained within the housing, wherein the processor multiplies at least one of said respective values by a weighting coefficient and then adds said respective values, as weighted, to one another to obtain a combined value and determines whether an occlusion has occurred in the fluid path of the infusion pump by using the combined value.

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