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US 10,744,041 B2Granted
Wound dressing
AssigneeSmith & Nephew, Inc.
InventorEdward Yerbury Hartwell
Life of this patent
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Abstract
A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing wound exudate, a liquid impermeable, gas permeable filter layer over the absorbent layer, a cover layer comprising at least one orifice and a first liquid and gas permeable transmission layer underlying the absorbent layer. The transmission layer is in fluid communication with the filter layer.
Claims19
A system for treating a wound site, comprising:
- a wound packer adapted to be positioned within a wound cavity;
- a dressing, comprising:
- a wound contact layer having a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, wherein the wound contact layer is adapted to cover the wound packer and skin surrounding the wound site,
- a cover layer having a periphery and a central portion, the periphery of the cover layer positioned proximate the periphery of the wound contact layer,
- an adhesive on an underside of the cover layer, the adhesive adhering the wound contact layer to the cover layer, wherein a space is defined underneath the cover layer and above the wound contact layer,
- a first transmission layer disposed in the space,
- a second transmission layer disposed in the space,
- an absorbent layer disposed between the first transmission layer and the second transmission layer, and
- a connector in fluid communication with the space for connecting the space to a conduit;
- and
- a negative pressure source adapted to be coupled in fluid communication with the connector to provide negative pressure to the dressing.
8 more elements
Dependencies are inferred from the claim text.