Peel and place dressing for negative-pressure therapy
AssigneeKCI Licensing, Inc.
InventorsChristopher Brian Locke, Timothy Mark Robinson
Life of this patent
Estimating the term…
Abstract
A dressing for treating a tissue site with negative pressure may comprise a cover having an adhesive, a manifold, a perforated polymer film, and a perforated silicone gel having a treatment aperture. The cover, the manifold, the perforated polymer film, and the perforated silicone gel may be assembled in a stacked relationship with the cover and the perforated silicone gel enclosing the manifold. The perforated polymer film may be at least partially exposed through the treatment aperture, and at least some of the adhesive may be exposed through the perforated silicone around the treatment aperture.
Claims21
A dressing for treating a tissue site with negative pressure, the dressing comprising:
- a sealing layer comprising a single opening defining a treatment aperture, an interior border around the treatment aperture, and a plurality of perforations around the treatment aperture and the interior border, wherein the interior border is free of the perforations, and wherein a size of each of the plurality of perforations is smaller than a size of the treatment aperture;
- a fluid control layer comprising a liquid-impermeable material extending across the treatment aperture and a plurality of fluid restrictions aligned with the treatment aperture, wherein the plurality of fluid restrictions are configured to move from a normally restricted position to an open position in response to a pressure gradient, and wherein a face of the fluid control layer overlaps the interior border at a margin to which the fluid control layer is coupled;
- a manifold adjacent to the fluid restrictions;
- and
- a cover comprising a film and a pressure-sensitive adhesive, the film disposed over the manifold and coupled to the sealing layer around the manifold, and the pressure-sensitive adhesive disposed adjacent to the plurality of perforations.
A dressing for treating a tissue site with negative pressure, the dressing comprising:
- a cover having an adhesive;
- a manifold;
- a perforated polymer film comprising a liquid-impermeable material;
- and
- a perforated silicone gel having a treatment aperture, an interior border around the treatment aperture, and a plurality of perforations around the treatment aperture and the interior border, wherein the interior border is free of the perforations, and wherein a size of each of the plurality of perforations is smaller than a size of the treatment aperture;
- wherein the cover, the manifold, the perforated polymer film, and the perforated silicone gel are assembled in a stacked relationship with the cover and the perforated silicone gel enclosing the manifold, the perforated polymer film extends across the treatment aperture with a plurality of perforations in the perforated polymer film at least partially exposed through the treatment aperture, and at least some of the adhesive is exposed through the perforated silicone gel around the treatment aperture.
A dressing for treating a tissue site with negative pressure, the dressing comprising:
- a manifold;
- a gel layer comprising an open central window and a plurality of openings around the open central window, wherein a size of each of the plurality of openings is smaller than a size of the open central window;
- a fluid control layer extending across the open central window and comprising a liquid-impermeable material and a plurality of fluid restrictions, wherein at least a portion of the plurality of fluid restrictions are aligned with the open central window and configured to move from a normally restricted position to an open position in response to a pressure gradient;
- and
- a cover comprising a film and a pressure-sensitive adhesive, the film disposed over the manifold and coupled to the gel layer around the manifold, and the pressure-sensitive adhesive disposed adjacent to the plurality of openings.
Dependencies are inferred from the claim text.