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US 12,005,180 B2Granted
Collapsible sheet for wound closure and method of use
AssigneeSmith & Nephew, Inc.
InventorAllan Kenneth Frazer Grugeon Hunt
Life of this patent
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Abstract
Embodiments of a negative pressure wound closure system and methods for using such a system are described. Certain disclosed embodiments facilitate closure of a wound by preferentially exerting a negative pressure on tissue. Some embodiments may utilize a collapsible sheet with a plurality of cells.
Claims24
A wound closure device comprising a collapsible element configured to be placed over a wound, the collapsible element comprising:
- a plurality of cells, wherein each of the plurality of cells comprises a top layer and a bottom layer, the plurality of cells arranged side-by-side;
- wherein:
- each cell comprises a hollow space enclosed by cell walls, the top layer, and the bottom layer, the hollow space configured to be filled with fluid;
- and
- at least one of the plurality of cells has an interior space that is fluidically isolated from all other cells of the plurality of cells and is configured to selectively collapse so that the top layer collapses toward the bottom layer and thereby cause at least a portion of the collapsible element to collapse.
2 more elements
A wound closure device comprising a collapsible element configured to be placed over a wound, the collapsible element comprising:
- a plurality of cells, wherein each of the plurality of cells comprises a top layer and a bottom layer, the plurality of cells arranged side by side in a horizontal plane;
- and a plurality of cell walls;
- wherein:
- each cell comprises a hollow space enclosed by the cell walls, the top layer, and the bottom layer, the hollow space configured to be filled with fluid;
- and
- at least one of the plurality of cells is configured to be individually selectively collapsible so that the top layer collapses toward the bottom without other cells of the plurality of cells collapsing by releasing the fluid that has filled the hollow space in each cell through an opening in the top layer, thereby causing at least a portion of the collapsible element to collapse when the at least one of the plurality of cells is collapsed.
3 more elements
Dependencies are inferred from the claim text.