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Infusion pump and method to enhance long term medication delivery accuracy

  • US 9,056,166 B2
  • Filed: 01/21/2013
  • Issued: 06/16/2015
  • Est. Priority Date: 01/21/2013
  • Status: Active Grant
First Claim
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1. An infusion pump for pumping fluid though an administration set at a constant flow rate over a long duration, the pump comprising:

  • a pumping mechanism configured for pumping fluid, said pumping mechanism operating at a pulse frequency; and

    a controller for controlling said pulse frequency of said pumping mechanism; and

    one or more sensors capable of measuring at least one characteristic value relating to a status of said pumping mechanism;

    said controller configured for operating said pumping mechanism at a first pulse frequency;

    said one or more sensors measure said at least one characteristic value intermittently; and

    wherein when said at least one characteristic value meets a threshold value, said controller causes said pumping mechanism to operate at a second pulse frequency, said second pulse frequency being different from said first pulse frequency;

    wherein said threshold value is calculated based on a material used to form the administration set.

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