A sealing drape may be suitable for use with a reduced-pressure treatment system for treating a tissue site. The sealing drape may have an interior surface adapted for positioning adjacent to a peripheral surface of the tissue site. The sealing drape may include a sealing material and an absorbent m
A sealing drape may be suitable for use with a reduced-pressure treatment system for treating a tissue site. The sealing drape may have an interior surface adapted for positioning adjacent to a peripheral surface of the tissue site. The sealing drape may include a sealing material and an absorbent material. The sealing material may be hydrophobic and substantially free of hydrophilic components. Further, the sealing material may be positioned between the interior surface of the sealing drape and the absorbent material. The sealing drape may be used with a manifold for positioning at the tissue site, a reduced-pressure interface, and a reduced-pressure source. Methods of manufacture and treatment are also disclosed.
대표청구항▼
1. A reduced-pressure system for treating a tissue site, the system comprising: a manifold comprising a first side and a second side opposite the first side and configured to have the first side be positioned over and adjacent to the tissue site and distribute reduced pressure via a reduced-pressure
1. A reduced-pressure system for treating a tissue site, the system comprising: a manifold comprising a first side and a second side opposite the first side and configured to have the first side be positioned over and adjacent to the tissue site and distribute reduced pressure via a reduced-pressure interface to the tissue site; anda sealing drape configured to have an aperture for applying the reduced pressure from the reduced-pressure interface and including an interior surface and an external surface, the interior surface configured to cover the second side of the manifold, provide a seal between the interior surface and a peripheral surface surrounding the tissue site, and provide a sealed space over the manifold and proximate the tissue site, the sealing drape further comprising: at least one layer of sealing material, the sealing material being hydrophobic and substantially free of hydrophilic components, wherein at least a portion of the sealing material forms a part of the interior surface and is configured to provide the seal between the interior surface and the peripheral surface surrounding the tissue site, andan absorbent material contained within the sealing material;wherein the absorbent material is configured to absorb liquid from an interface between the interior surface and the peripheral surface surrounding the tissue site, such that the seal is provided while preventing the peripheral surface surrounding the tissue site from becoming saturated with moisture; andwherein the reduced-pressure interface is configured to be in fluid communication with the sealed space and the manifold to provide the reduced pressure to the sealed space. 2. The system of claim 1, further comprising a reduced-pressure source in fluid communication with the reduced-pressure interface. 3. The system of claim 1, the absorbent material disposed substantially uniformly within the sealing material. 4. The system of claim 1, the absorbent material comprising a plurality of absorbent particles. 5. The system of claim 1, the absorbent material comprising a plurality of absorbent fibers. 6. The system of claim 1, the absorbent material comprising a sheet-like absorbent layer disposed between a first layer and a second layer of the sealing material. 7. The system of claim 1, the absorbent material configured to provide an absorptive gradient through the sealing drape. 8. The system of claim 1, further comprising a carrier that carries the absorbent material, the carrier and the absorbent material being disposed between a first layer and a second layer of the sealing material. 9. The system of claim 8, the carrier comprising a hydrophobic polypropylene sheet. 10. The system of claim 1, further comprising a plurality of absorbent materials associated with the sealing material of the sealing drape, the plurality of absorbent materials having an absorptive capacity that increases with increasing distance through a cross section of the sealing drape from the interior surface of the sealing drape. 11. The system of claim 1, wherein the absorbent material comprises a three-dimensional structure of interconnected absorbent fibers, absorbent particles, and sheet-like absorbent layers. 12. The system of claim 1, wherein the sealing material comprises an elastomeric material. 13. The system of claim 1, wherein the sealing material comprises a hydrophobic silicone elastomer. 14. The system of claim 1, wherein the sealing material of the sealing drape is adapted to provide evaporation of fluid retained in the absorbent material through the external surface of the sealing drape. 15. A reduced-pressure system for treating a tissue site, the system comprising: a manifold comprising a first side and a second side opposite the first side and configured to have the first side be positioned over and adjacent to the tissue site and distribute reduced pressure via a reduced-pressure interface to the tissue site; anda sealing drape configured to have an aperture for applying the reduced pressure from the reduced-pressure interface and including an interior surface and an external surface, the interior surface configured to provide a seal between the interior surface and a peripheral surface surrounding the tissue site and to cover the second side of the manifold, the sealing drape further comprising: at least one layer of sealing material forming at least a portion of the interior surface of the sealing drape and configured to provide the seal between the interior surface and the peripheral surface surrounding the tissue site and to provide a sealed space, andan absorbent material contained within the sealing material;wherein at least a portion of the sealing material is configured to be positioned between the interior surface of the sealing drape and the absorbent material to prevent the peripheral surface surrounding the tissue site from becoming saturated with moisture; andwherein the reduced-pressure interface is configured to be in fluid communication with the sealed space and the manifold to provide the reduced pressure to the sealed space. 16. A reduced-pressure system for treating a tissue site, the system comprising: a manifold adapted to be positioned adjacent the tissue site and to distribute reduced pressure to the tissue site;a sealing drape having an interior surface and an external surface, the interior surface adapted to cover the manifold and the tissue site, the sealing drape further comprising: a sealing material, the sealing material being hydrophobic and substantially free of hydrophilic components and adapted to provide a sealed space around the manifold and the tissue site, wherein at least a portion of the sealing material is configured to be positioned adjacent a peripheral surface surrounding the tissue site; andan absorbent material contained within the sealing material;wherein the sealing drape is configured to absorb liquid at an interface between the sealing drape and the peripheral surface surrounding the tissue site; anda reduced-pressure interface adapted to deliver reduced-pressure, the reduced-pressure interface in fluid communication with the sealed space and the manifold.
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