Apparatuses and methods for wound therapy

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 the 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;
• a first pressure sensor for measuring internal abdominal pressure, wherein closure of the wound can be controlled by controlling the amount that the wound packing member or wound filler collapses based on the measured internal abdominal pressure;
• and
• a second pressure sensor for detecting pressure beneath the backing layer.

A method of treating a wound, comprising:

• placing a wound packing member or wound filler that has an adjustable volume into the wound;
• applying a backing layer over the wound packing member or wound filler and sealing the backing layer to skin surrounding the wound;
• applying negative pressure to the wound through the backing layer to a space beneath the backing layer;
• monitoring internal abdominal pressure in the wound with a first pressure sensor;
• detecting pressure beneath the backing layer with a second pressure sensor;
• and
• controlling closure of the wound by controlling the amount that the wound packing member or wound filler collapses based on the measured internal abdominal pressure.