Reusable sealing material for decompression therapy treatment system

A method for providing decompression therapy, comprising:

• positioning an occlusive layer of a dressing over a tissue site of a patient by stretching a sealing strip coupled to the occlusive layer to accommodate movement of the tissue site relative to the sealing strip and the occlusive layer;
• sealing an edge of the occlusive layer to the patient by allowing the sealing strip to rebound into contact with the tissue site at the edge of the occlusive layer, the sealing strip providing a non-adhesive tack and a seal, thereby defining a chamber between the occlusive layer and the tissue site;
• operating an air displacement device fluidly coupled to the chamber to evacuate air from the chamber;
• wherein the evacuation of air from the chamber pulls intact skin in a direction outward relative to the tissue site.

A sealing ring for use with an annular dressing, comprising:

• a thermoplastic elastomer formed in a ring, the thermoplastic elastomer having properties comprising:
• a hardness in a range between 20 and 60 Shore OOO;
• and
• a tensile strength in a range between 9 and 19 lbs/inch2;
• wherein the ring is configured to contract to exert a pressure greater than 20 mmHg and less than 32 mmHg on an extremity of a patient inserted through the ring.