Medical dressings, systems, and methods employing sealants

摘要

According to an illustrative embodiment, a system for treating a wound at a tissue site of a patient comprising a reduced-pressure source (108) to supply reduced pressure, a drape (132) adhering to the tissue site to cover the wound where possible leak passages between the drape and the tissue site may occur, and a seal (140) disposed between the drape and the tissue site, is disclosed. The seal is adapted to react with a fluid to form a sealant substantially filling the passages in response to air leaking through the passages from outside the drape when reduced pressure is applied to the wound. According to another illustrative embodiment, a method for sealing a drape to a tissue site for treating a wound at the tissue site comprising applying the drape to cover the tissue site whereby passages are formed between the drape and the tissue site, positioning a seal between the drape and the tissue site wherein the seal is adapted to react with a fluid to form a sealant for substantially filling the passages, is also disclosed.