Reduced-pressure treatment systems and methods employing hydrogel reservoir members

A manifold pad for treating a tissue site of a patient, the manifold pad comprising:

• a manifold member adapted to distribute reduced pressure;
• a hydrogel reservoir member impregnated within the manifold member;
• and
• wherein the hydrogel reservoir member is adapted to receive and store a fluid from the tissue site at a first pressure and adapted to release at least a portion of the fluid at a second pressure, wherein the first pressure is greater than the second pressure on an absolute pressure scale.

A manifold pad for treating a tissue site on a patient, the manifold pad comprising:

• a manifold member comprising a first material of interconnected struts within the manifold member forming a plurality of interconnected cells through the manifold member;
• and
• a reservoir member comprising a second material coating at least a portion of the interconnected struts within the manifold member;
• wherein the first material and the second material are different materials;
• wherein the second material is a super absorbent polymer that is adapted to receive and retain liquids from the tissue site at a first pressure and is adapted to release a substantial portion of the liquids at a second pressure.