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Wound cleansing apparatus with stress

  • US 9,452,244 B2
  • Filed: 07/07/2010
  • Issued: 09/27/2016
  • Est. Priority Date: 04/27/2004
  • Status: Active Grant
First Claim
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1. A method of treating a wound, comprising:

  • applying a cyclically varying negative pressure to the wound in accordance with a sinusoidal waveform that varies relative to a baseline pressure, wherein the wound is covered at least partially by a conformable wound dressing configured to form at least a relatively fluid tight seal around at least a portion of the wound,wherein applying the cyclically varying negative pressure to the wound in accordance with the sinusoidal waveform comprises varying the sinusoidal waveform to include first and second maximum amplitudes of negative pressure, the first maximum amplitude different from the second maximum amplitude, wherein the cyclically varying negative pressure applied to the wound is below atmospheric pressure.

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