Reduced-Pressure, Tunnel-Wound Dressings, Systems, And Methods

A method of manufacturing a reduced-pressure, tunnel wound dressing, the method comprising the steps of:

• extruding a longitudinal core member from a closed-cell foam;
• extruding a first longitudinal concentric member from an open-cell foam such that the first longitudinal concentric member is formed around the longitudinal core member;
• and
• applying a second longitudinal concentric member around the first longitudinal concentric member, wherein the second longitudinal concentric member comprises an impermeable material having a plurality of apertures.

A reduced-pressure, tunnel-wound dressing for treating a tunnel wound or a fistula, the reduced-pressure, tunnel-wound dressing comprising:

• a longitudinal core member formed from a manifold material and operable to compress under reduced pressure greater than a first threshold;
• a first longitudinal concentric member formed from a closed-cell foam, wherein the first longitudinal concentric member is concentrically disposed on a circumference of the longitudinal core member, and wherein the first longitudinal concentric member is operable to expand under reduced pressure greater than a first threshold;
• and
• a plurality of fluid conduits that fluidly couple the longitudinal core member and the first longitudinal concentric member.

A reduced-pressure, tunnel-wound dressing for treating a tunnel wound or a fistula, the reduced-pressure, tunnel-wound dressing comprising:

• a cylindrical, shell bladder filled with a gas, wherein the cylindrical, shell bladder has an exterior surface, a proximal end, and a distal end;
• an open-cell-foam layer covering the exterior surface of the cylindrical, shell bladder;
• and
• wherein the distal end of the cylindrical, shell bladder is folded back into the cylindrical, shell bladder to form a portion that is operable to unfurl when subjected to reduced pressure.