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Multi-sensor infusion system for detecting air or an occlusion in the infusion system

  • US 10,046,112 B2
  • Filed: 05/23/2014
  • Issued: 08/14/2018
  • Est. Priority Date: 05/24/2013
  • Status: Active Grant
First Claim
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1. An infusion system for being operatively connected to a fluid delivery line and to an infusion container containing an infusion fluid, the infusion system comprising:

  • a pump;

    a plurality of different types of sensors connected to the pump or the fluid delivery line, the plurality of different types of sensors configured to indicate whether air is in the fluid delivery line, wherein the plurality of different types of sensors comprise an air sensor and a force sensor;

    at least one processor in electronic communication with the pump and the air sensor and the force sensor; and

    a memory in electronic communication with the at least one processor, wherein the memory comprises programming code for execution by the at least one processor, and the programming code is configured to;

    determine a first plurality of measurements from the air sensor;

    determine a second plurality of measurements from the force sensor;

    detect a presence of air at a first time based on the first plurality of measurements;

    determine that there was a change in force profile at a second time corresponding to the first time from the second plurality of measurements; and

    generate an alarm based on the detected presence of air and the determined change in force profile.

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