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Method for providing negative pressure to a negative pressure wound therapy bandage

  • US 9,067,003 B2
  • Filed: 11/18/2011
  • Issued: 06/30/2015
  • Est. Priority Date: 05/26/2011
  • Status: Active Grant
First Claim
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1. A method for providing negative pressure to a negative pressure wound therapy bandage, the method comprising:

  • receiving a therapeutic negative pressure setting for a pumping device having a pump, wherein the pumping device is fluidically connected to the negative pressure wound therapy bandage;

    determining a target negative pressure associated with the therapeutic negative pressure, the target negative pressure being less negative than the therapeutic negative pressure; and

    ,achieving the target negative pressure by;

    cycling the pump on and off to create a negative pressure under the negative pressure wound therapy bandage;

    obtaining a plurality of samples of the negative pressure under the negative pressure wound therapy bandage at a first sampling rate;

    calculating an average of a number of consecutive samples;

    comparing the average to the target negative pressure;

    continuing to cycle the pump on and off until the average is more negative than the target pressure; and

    after cycling the pump on and off until the average is more negative than the target pressure after a complete off cycle, sampling the negative pressure under the negative pressure wound therapy bandage at a second sampling rate less than the first sampling rate.

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