MEDICAL DRESSINGS, SYSTEMS, AND METHODS EMPLOYING SEALANTS
First Claim
1. A system for treating a wound at a tissue site, the system comprising:
- a pressure source to supply reduced pressure;
a manifold in fluid communication with said pressure source to provide reduced pressure to the wound;
a drape adhering to the tissue site to cover the wound and said manifold, there being passages between said drape and the tissue site; and
,a seal disposed between said drape and the tissue site, said seal adapted to react with a fluid to form a sealant substantially filling the passages in response to air leaking through the passages from outside said drape when said manifold provides reduced pressure to the wound.
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Accused Products
Abstract
According to an illustrative embodiment, a system for treating a wound at a tissue site of a patient comprising a reduced-pressure source to supply reduced pressure, a drape 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 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.
131 Citations
52 Claims
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1. A system for treating a wound at a tissue site, the system comprising:
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a pressure source to supply reduced pressure; a manifold in fluid communication with said pressure source to provide reduced pressure to the wound; a drape adhering to the tissue site to cover the wound and said manifold, there being passages between said drape and the tissue site; and
,a seal disposed between said drape and the tissue site, said seal adapted to react with a fluid to form a sealant substantially filling the passages in response to air leaking through the passages from outside said drape when said manifold provides reduced pressure to the wound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for treating a wound at a tissue site, the apparatus comprising:
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a manifold adapted to provide reduced pressure to the wound; a drape having an adhesive surface for adhering to the tissue site to cover the wound and said manifold, there being passages between said drape and the tissue site; and
,a seal adjacent the adhesive surface of said drape, said seal disposed between said drape and the tissue site when applied to the tissue site and transformable to form a sealant substantially filling the passages between said drape and the tissue site when said manifold provides reduced pressure to the wound; whereby air leaks from outside said drape are reduced when said manifold provides reduced pressure to the wound. - View Dependent Claims (22, 23, 24)
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25-40. -40. (canceled)
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41. A method for sealing a drape to a tissue site for treating a wound at the tissue site, the method comprising:
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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; applying reduced pressure to the tissue site; and
,applying the fluid to the seal to form the sealant, whereby the sealant substantially fills the passages and reduces air leaking from outside said drape when reduced pressure is applied to the tissue site.
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42-50. -50. (canceled)
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51. A method for treating a tissue site of a patient, the method comprising:
applying a dressing to the tissue site, the dressing comprising; a seal having a first side and a second, tissue-facing side, the seal adapted for placement adjacent the tissue site, the seal operable to expand in a presence of a fluid to form a substantially sealed space at the tissue site; and a drape for covering the seal and further forming the substantially sealed space.
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52-58. -58. (canceled)
Specification