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US 12,642,905 B2Granted
Collapsible dressing for negative pressure wound 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 an obscuring layer that may hide fluid contained therein and a stabilizing structure that may aid in wound closure.
Claims14
A method of treating a wound, comprising:
- positioning a wound dressing over the wound and adhering the wound dressing to an area of intact body surface adjacent the wound, the wound dressing comprising a backing layer, a stabilizing structure positioned below the backing layer, an absorbent layer positioned between the stabilizing structure and the backing layer, and an adhesive wound contact layer positioned beneath the stabilizing structure, the stabilizing structure comprising a plurality of cells and configured to anisotropically collapse under negative pressure;
- and
- applying negative pressure to the wound such that the stabilizing structure collapses significantly more within a horizontal plane than within a vertical plane to apply a horizontal closing force through the adhesive wound contact layer over the intact skin surrounding the wound in the direction of a center of the wound,
- wherein the absorbent layer comprises a plurality of through holes, individual through holes in the absorbent layer aligned with a corresponding cell.
1 more element
A method of treating a wound comprising:
- placing a wound dressing over the wound with a stabilizing structure positioned over the skin surrounding the wound;
- and
- applying negative pressure to the wound through a port,
- wherein the wound dressing comprises:
- the port;
- a backing layer;
- the stabilizing structure positioned below the backing layer, the stabilizing structure comprising a plurality of cells and configured to anisotropically collapse under negative pressure;
- an absorbent layer positioned between the stabilizing structure and the backing layer, the absorbent layer compring a plurality of through holes, individual through holes in the absorbent layer aligned with a corresponding cell;
- and
- and an adhesive wound contact layer positioned beneath the stabilizing structure, and
- wherein the stabilizing structure applies a horizontal force to the skin surrounding the wound when placed under negative pressure.
8 more elements
Dependencies are inferred from the claim text.