Abdominal negative-pressure therapy dressing with closed-loop force management control

A dressing for treating an open abdominal cavity with negative pressure, the dressing comprising:

• a viscera contact layer configured to communicate a negative pressure to viscera and configured to form flow paths for a fluid through the viscera contact layer;
• a spacer manifold enclosed by the viscera contact layer, the spacer manifold including a plurality of spacer legs extending from a central body;
• a fluid manifold configured to be disposed adjacent to the viscera contact layer and configured to communicate the negative pressure to a tissue and capable of forming flow paths for the fluid;
• and
• at least one sensor including a stretchable material and being configured to acquire data associated with strain in one or more of the fluid manifold and the viscera contact layer, a first sensor of the at least one sensor disposed on a first leg of the plurality of spacer legs along a first axis, a second sensor of the at least one sensor disposed on a second leg of the plurality of spacer legs along a second axis, and a third sensor of the at least one sensor extending between two of the spacer legs and across the central body along a third axis, wherein at least one of the first axis and the second axis are different from the third axis, and
• wherein at least one of the first sensor, the second sensor, and the third sensor include an original length that is extended to a stretched length when the at least one sensor is disposed along the first axis, the second axis, or the third axis prior to treatment.