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Apparatuses and methods for wound therapy

  • US 10,070,994 B2
  • Filed: 05/21/2013
  • Issued: 09/11/2018
  • Est. Priority Date: 05/22/2012
  • Status: Active Grant
First Claim
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1. An apparatus for providing negative pressure wound therapy to a wound, comprising:

  • a wound packing member or wound filler that has an adjustable volume;

    a backing layer for providing a substantially air and liquid-tight seal over a wound when the wound packing member or wound filler is positioned in the wound;

    a source of negative pressure for providing negative pressure to a space beneath the backing layer; and

    a pressure sensor for measuring internal abdominal pressure,wherein collapse of the wound packing member or wound filler is controlled by applying a volume increasing force or stiffness increasing force to the wound packing member or wound filler while negative pressure is provided to the space beneath the backing layer to control the rate of wound closure, the amount of the volume increasing force or stiffness increasing force being based on the measured internal abdominal pressure.

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