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

  • US 10,300,178 B2
  • Filed: 06/11/2015
  • Issued: 05/28/2019
  • Est. Priority Date: 05/26/2011
  • Status: Active Grant
First Claim
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1. A method of providing negative pressure wound therapy comprising:

  • determining a therapeutic negative pressure for a negative pressure wound therapy device having a source of negative pressure, wherein the negative pressure wound therapy device is configured to be fluidically connected to a wound covered by a wound dressing;

    attaining the therapeutic negative pressure under the wound dressing by activating the source of negative pressure, measuring wound pressure under the wound dressing at a first sampling rate, and determining based on the measured wound pressure that the therapeutic negative pressure is reached and thereafter deactivating the source of negative pressure; and

    maintaining the therapeutic negative pressure under the wound dressing by alternately activating and deactivating the source of negative pressure based on measuring the wound pressure under the wound dressing at a second sampling rate lower than the first sampling rate, the maintaining comprising activating the source of negative pressure in response to determining that the wound pressure is more positive than the therapeutic negative pressure and deactivating the source of negative pressure in response to determining that the wound pressure reaches the therapeutic negative pressure.

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