US 12,453,658 B2
Absorbent negative pressure wound therapy dressing
John Philip Gowans, Hessle (GB); and Stephanie Jane Noble, Brough (GB)
Assigned to Smith & Nephew PLC, Watford (GB)
Filed by Smith & Nephew PLC, Watford (GB)
Filed on Aug. 16, 2021, as Appl. No. 17/403,178.
Application 17/403,178 is a continuation of application No. 16/067,530, granted, now 11,090,196, previously published as PCT/IB2016/001959, filed on Dec. 30, 2016.
Claims priority of provisional application 62/273,053, filed on Dec. 30, 2015.
Prior Publication US 2021/0378872 A1, Dec. 9, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/0203 (2024.01); A61F 13/02 (2006.01); A61F 13/0206 (2024.01); A61F 13/0246 (2024.01); A61F 13/05 (2024.01); A61M 1/00 (2006.01); A61L 15/24 (2006.01); A61L 15/58 (2006.01)
CPC A61F 13/0223 (2013.01) [A61F 13/0203 (2013.01); A61F 13/0206 (2013.01); A61F 13/0209 (2013.01); A61F 13/022 (2013.01); A61F 13/0253 (2013.01); A61F 13/0266 (2013.01); A61F 13/05 (2024.01); A61M 1/90 (2021.05); A61L 15/24 (2013.01); A61L 15/58 (2013.01); A61M 2205/7536 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A wound dressing configured to be positioned over a wound site, the wound dressing comprising:
a backing layer positioned over an absorbent layer, the absorbent layer comprising a hydrophobic barrier configured to reduce swelling of the absorbent layer; and
a cyanoacrylate adhesive located on an upper surface of the backing layer, the cyanoacrylate adhesive positioned directly over the hydrophobic barrier, the hydrophobic barrier formed by gaseous hydrophobic material migration from the cyanoacrylate adhesive through the backing layer.