US 12,433,796 B2
Wound dressing with adhesive margin
William Pigg, Elvington (GB); Michelle Delbono, Earby (GB); and Sally Stephens, Skipton (GB)
Assigned to KCI USA, INC., San Antonio, TX (US)
Filed by KCI USA, INC., San Antonio, TX (US)
Filed on Sep. 8, 2021, as Appl. No. 17/468,964.
Application 17/468,964 is a division of application No. 15/659,486, filed on Jul. 25, 2017, granted, now 11,141,318.
Application 15/659,486 is a continuation of application No. 14/653,760, granted, now 10,271,995, issued on Apr. 30, 2019, previously published as PCT/IB2013/060862, filed on Dec. 12, 2013.
Claims priority of application No. 1222770 (GB), filed on Dec. 18, 2012.
Prior Publication US 2021/0401630 A1, Dec. 30, 2021
Int. Cl. A61F 13/02 (2024.01); A61F 13/0203 (2024.01); A61F 13/0206 (2024.01); A61F 13/0246 (2024.01); A61F 13/15 (2006.01)
CPC A61F 13/0263 (2013.01) [A61F 13/0203 (2013.01); A61F 13/0206 (2013.01); A61F 13/0246 (2013.01); A61F 13/0253 (2013.01); A61F 13/0289 (2013.01); A61F 13/15707 (2013.01); A61F 13/025 (2013.01); A61F 2013/15715 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of making a wound dressing, comprising:
forming a precursor laminate comprising a layer of silicone sandwiched between a polymeric film support sheet and a release sheet;
die cutting aperture perimeters through the polymeric film support sheet and the silicone layer; and
removing the release sheet to leave an apertured layer comprising an apertured polymeric film having a coating of a silicone gel on a wound-facing surface of the apertured polymeric film, wherein removing the release sheet further comprises removing a fill formed by die cutting aperture perimeters.