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

A system to treat a tunnel wound or fistula, the system comprising:

• a dressing, comprising:
• a distal end, a proximal end, and a longitudinal profile between the distal end and the proximal end, wherein a length of the dressing between the distal end and the proximal end is greater than a width of the dressing, the distal end configured to be positioned proximate to a bottom of the tunnel wound or the fistula, and the proximal end configured to be positioned proximate to an opening of the tunnel wound or the fistula such that a gap is formed between the dressing and an inner wall of the tunnel wound or the fistula,
• a longitudinal core member comprising a closed-cell foam configured to expand under reduced pressure and cause an exterior surface of the dressing to engage the inner wall of the tunnel wound or the fistula,
• a first longitudinal concentric member comprising a manifold material, wherein the first longitudinal concentric member is concentrically disposed on a circumference of the longitudinal core member;
• a drape configured to cover the dressing to form a sealed space over the proximal end of the dressing;
• and
• a reduced-pressure source fluidly coupled to the dressing.