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US 9,956,120 B2Granted
Dressing with sealing and retention interface
AssigneeKCI Licensing, Inc.
InventorChristopher Brian Locke
Life of this patent
Estimating the term…
Abstract
A dressing for treating a tissue site may include a base layer, a sealing member, a first and a second wicking layer, and an absorbent layer. The base layer may have a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion. At least one of the apertures in the periphery may be positioned at an edge of the periphery, and may have an interior exposed at the edge. The sealing member and the base layer may define an enclosure. The first and the second wicking layer may each be disposed in the enclosure with the absorbent layer positioned between the first and the second wicking layer. Other dressings, systems, and methods are disclosed.
Claims60
A system for treating a tissue site, comprising:
- a tissue interface adapted to be positioned proximate to the tissue site;
- a dressing, comprising:
- a base layer having a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, the apertures in the periphery being larger than the apertures in the central portion, a plurality of the apertures in the periphery being positioned along an edge of the periphery and having an interior exposed at the edge, and wherein the base layer is adapted to cover the tissue interface and tissue surrounding the tissue site,
- an adhesive configured to extend through the apertures at least in the periphery of the base layer to contact the tissue surrounding the tissue site,
- a sealing member having a periphery and a central portion, the periphery of the sealing member positioned proximate to the periphery of the base layer, wherein the central portion of the sealing member and the central portion of the base layer define an enclosure,
- a first wicking layer disposed in the enclosure,
- a second wicking layer disposed in the enclosure,
- an absorbent layer disposed between the first wicking layer and the second wicking layer, and
- a conduit interface positioned proximate to the sealing member and in fluid communication with the enclosure;
- and
- a reduced-pressure source adapted to be coupled in fluid communication with the conduit interface to provide reduced pressure to the dressing.
8 more elements
A dressing for treating a tissue site, comprising:
- a base layer having a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, the apertures in the periphery being larger than the apertures in the central portion, a plurality of the apertures in the periphery being positioned along an edge of the periphery and having an interior exposed at the edge, and wherein the base layer is adapted to cover the tissue site;
- an adhesive configured to extend through the apertures in at least the periphery of the base layer to contact tissue surrounding the tissue site;
- a sealing member having a periphery and a central portion, the periphery of the sealing member positioned proximate to the periphery of the base layer, wherein the central portion of the sealing member and the central portion of the base layer define an enclosure;
- a first wicking layer disposed in the enclosure;
- a second wicking layer disposed in the enclosure;
- an absorbent layer positioned in fluid communication between the first wicking layer and the second wicking layer, wherein a peripheral portion of the first wicking layer is coupled to a peripheral portion of the second wicking layer providing a wicking layer enclosure surrounding the absorbent layer between the first and the second wicking layer;
- and
- a conduit interface positioned proximate to the sealing member and in fluid communication with the enclosure.
5 more elements
A system for treating a tissue site, comprising:
- a tissue interface adapted to be positioned proximate to the tissue site and to distribute reduced pressure to the tissue site;
- a dressing adapted to provide reduced pressure to the tissue interface and to store fluid extracted from the tissue site through the tissue interface, comprising:
- a base layer comprising a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, the apertures in the periphery being larger than the apertures in the central portion, a plurality of the apertures in the periphery being positioned along an edge of the periphery and having an interior exposed at the edge, at least one of the apertures in the periphery being positioned in a corner of the periphery and being substantially precluded from fluid communication in a lateral direction exterior to the corner, the base layer further comprising a border substantially surrounding the central portion and positioned between the central portion and the periphery, the border being free of the apertures, wherein the central portion of the base layer is adapted to be positioned proximate to the tissue interface and the periphery of the base layer is adapted to be positioned proximate to tissue surrounding the tissue site, wherein the periphery of the base layer is adapted to surround the tissue interface, and wherein the apertures in the base layer are adapted to be in fluid communication with the tissue interface and the tissue surrounding the tissue site,
- an adhesive configured to extend through the apertures in at least the periphery of the base layer to contact the tissue surrounding the tissue site, wherein the adhesive is adapted to be in fluid communication with the tissue surrounding the tissue site through the apertures in the base layer,
- a sealing member having a periphery and a central portion, the periphery of the sealing member positioned proximate the periphery of the base layer, wherein the central portion of the sealing member and the central portion of the base layer define an enclosure,
- a first wicking layer disposed in the enclosure,
- a second wicking layer disposed in the enclosure,
- an absorbent layer positioned in fluid communication between the first wicking layer and the second wicking layer, and
- a conduit interface positioned proximate to the sealing member and in fluid communication with the enclosure;
- and
- a reduced-pressure source adapted to be coupled in fluid communication with the conduit interface to provide reduced pressure to the dressing.
8 more elements
Dependencies are inferred from the claim text.