Wound dressing and method of treatment
AssigneeSmith & Nephew, Inc.
InventorsEdward Yerbury Hartwell, Varuni Rachindra Brownhill, John Gowans
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Abstract
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising a number of viewing portals that facilitate observation of wound tissue or healthy skin underlying the wound dressing. Some embodiments of the viewing portals are provided by forming through holes in internal dressing layers including absorbent material and transmission material, optionally by providing a plug material within the through holes, and by providing translucent or transparent cover layer and tissue contact layer materials.
Claims17
A wound dressing comprising:
- a material layer;
- a plurality of plug materials extending vertically through a thickness of the material layer;
- and
- a cover layer positioned above the material layer, the cover layer configured to form a negative pressure chamber underneath the cover layer, the cover layer couplable to a source of negative pressure configured to create negative pressure in the negative pressure chamber.
A method of treating a wound, the method comprising:
- applying a wound dressing to the wound, the wound dressing comprising:
- a material layer;
- a plurality of plug materials extending vertically through a thickness of the material layer;
- and
- a cover layer positioned above the material layer, the cover layer configured to form a negative pressure chamber underneath the cover layer, the cover layer couplable to a source of negative pressure configured to create negative pressure in the negative pressure chamber.
A dressing, comprising:
- a foam layer;
- a plurality of cores extending substantially through the foam layer;
- and
- a drape sealable over the foam layer and a wound bed, the drape defining a substantially-airtight volume between the drape and the wound bed that contains the foam layer, the drape couplable to a pump operable to create a negative pressure in the substantially-airtight volume.
Dependencies are inferred from the claim text.