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US 12,295,814 B2Granted
Shear resistant wound dressing for use in vacuum wound therapy
AssigneeSmith & Nephew, Inc.
InventorsRonald F. Vitaris, Bethany A. Vitaris
Life of this patent
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Abstract
A cover layer for a vacuum wound therapy dressing includes a backing layer formed from a flexible polymeric membrane and an adhesive layer for affixing the backing layer over a wound bed to provide a substantially fluid-tight seal around a perimeter of the wound bed. The cover layer is reinforced with a reinforcement layer extending to a peripheral region of the backing layer to distribute forces associated with evacuating a reservoir, as defined by or within the cover, to stimulate healing of the wound bed.
Claims17
A vacuum wound therapy system comprising:
- a wound dressing configured to be positioned over a wound, the wound dressing comprising:
- a contact layer;
- an absorbent filler over the contact layer;
- and
- a cover layer over the absorbent filler, the cover layer comprising a first wound facing side and an opposite second side, the cover layer comprising an aperture extending through the cover layer;
- a vacuum port adhered to the cover layer of the wound dressing over the aperture in the cover layer of the wound dressing, the vacuum port comprising an opening aligned with the aperture in the cover layer of the wound dressing;
- a filter positioned beneath the vacuum port and extending across the opening in the vacuum port;
- and
- a vacuum system configured to be in fluid communication with the wound dressing, the vacuum port is configured to fluidically connect the vacuum system to the wound dressing, the vacuum system comprising:
- a vacuum source;
- and
- a collection canister.
9 more elements
Dependencies are inferred from the claim text.