US 12,005,180 B2
Collapsible sheet for wound closure and method of use
Allan Kenneth Frazer Grugeon Hunt, Beverley (GB)
Assigned to Smith & Nephew PLC, Watford (GB)
Filed by Smith & Nephew PLC, Watford (GB)
Filed on Apr. 28, 2023, as Appl. No. 18/141,297.
Application 18/141,297 is a continuation of application No. 16/622,773, granted, now 11,724,020, previously published as PCT/EP2018/065400, filed on Jun. 11, 2018.
Claims priority of provisional application 62/519,775, filed on Jun. 14, 2017.
Prior Publication US 2023/0263951 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 1/00 (2006.01); A61B 46/20 (2016.01); A61F 13/00 (2006.01); A61F 13/0206 (2024.01)
CPC A61M 1/90 (2021.05) [A61B 46/20 (2016.02); A61F 13/00068 (2013.01); A61F 13/0209 (2013.01); A61F 2013/00357 (2013.01)] 24 Claims
OG exemplary drawing
 
1. 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.