US 12,290,627 B2
Wound dressing
Edward Yerbury Hartwell, Hull (GB)
Assigned to Smith & Nephew PLC, Watford (GB)
Filed by Smith & Nephew PLC, Watford (GB)
Filed on Sep. 3, 2021, as Appl. No. 17/466,406.
Application 17/466,406 is a continuation of application No. 16/186,393, filed on Nov. 9, 2018, granted, now 11,110,010.
Application 16/186,393 is a continuation of application No. 14/692,622, filed on Apr. 21, 2015, granted, now 10,123,909, issued on Nov. 13, 2018.
Application 14/692,622 is a continuation of application No. 14/276,983, filed on May 13, 2014, granted, now 9,220,822, issued on Dec. 29, 2015.
Application 14/276,983 is a continuation of application No. 12/744,218, granted, now 8,808,274, issued on Aug. 19, 2014, previously published as PCT/GB2008/051089, filed on Nov. 20, 2008.
Claims priority of application No. 0722820 (GB), filed on Nov. 21, 2007; and application No. 0817040 (GB), filed on Sep. 17, 2008.
Prior Publication US 2022/0000673 A1, Jan. 6, 2022
Int. Cl. A61M 1/00 (2006.01); A61F 13/00 (2024.01); A61F 13/02 (2006.01); A61F 13/0203 (2024.01); A61F 13/0206 (2024.01); A61F 13/0246 (2024.01); A61F 13/05 (2024.01); A61M 27/00 (2006.01); A61F 13/01 (2024.01)
CPC A61M 1/962 (2021.05) [A61F 13/00063 (2013.01); A61F 13/02 (2013.01); A61F 13/0206 (2013.01); A61F 13/0209 (2013.01); A61F 13/022 (2013.01); A61F 13/0226 (2013.01); A61F 13/0246 (2013.01); A61F 13/05 (2024.01); A61M 1/71 (2021.05); A61M 1/78 (2021.05); A61M 1/784 (2021.05); A61M 1/964 (2021.05); A61M 1/985 (2021.05); A61M 27/00 (2013.01); A61F 2013/00246 (2013.01); A61F 2013/00536 (2013.01); A61F 13/01029 (2024.01); A61F 13/01046 (2024.01); A61M 1/882 (2021.05); A61M 2205/7527 (2013.01); A61M 2205/7536 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An apparatus for the treatment of a wound by applying negative pressure to the wound, the apparatus comprising:
a first porous layer for disposing on the wound, wherein the first porous layer comprises a first side and a second, patient-facing side;
a sealing layer disposed over the first side of the porous layer to form a sealed space over the wound containing the first porous layer, wherein the sealing layer comprises a high-moisture vapor permeable material;
a second porous layer having a first side and a second, patient-facing side;
a cover layer disposed over the first side of the second porous layer forming an enclosure;
at least one port formed on the cover layer; and
a negative pressure source configured to be fluidly coupled to the sealed space and to the enclosure.