US 12,127,915 B2
Wound dressing
Patrick Schütz, Hamburg (DE); and Christian Schulze, Hamburg (DE)
Assigned to ESSITY HYGIENE AND HEALTH AKTIEBOLAG, Gothenburg (SE)
Appl. No. 18/254,982
Filed by Essity Hygiene and Health Aktiebolag, Gothenburg (SE)
PCT Filed Dec. 17, 2020, PCT No. PCT/EP2020/086899
§ 371(c)(1), (2) Date May 30, 2023,
PCT Pub. No. WO2022/128115, PCT Pub. Date Jun. 23, 2022.
Prior Publication US 2023/0338197 A1, Oct. 26, 2023
Int. Cl. A61F 13/02 (2024.01); A61F 13/0206 (2024.01); A61F 13/0246 (2024.01)
CPC A61F 13/0289 (2013.01) [A61F 13/0206 (2013.01); A61F 13/0253 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A wound dressing comprising:
(a) a covering layer;
(b) a sheath on the wound facing side of the covering layer,
(c) an absorbent core within the sheath, and
(d) an adherent layer on the wound facing side of the sheath;
wherein the sheath comprises:
(b1) an adhesive sheath layer,
(b2) a proximal sheath layer on the proximal sides of the absorbent core and the adhesive sheath layer and
(b3) a distal sheath layer on the distal sides of the absorbent core and the adhesive sheath layer;
wherein an opening is defined in the adherent layer such that an entirety of the absorbent core overlaps the opening and the absorbent core does not overlap the adherent layer,
wherein the adherent layer has
(i) a wound facing proximal side adapted to adhere to a body part, and
(ii) a distal side adhering to an outer rim of the covering layer, and
wherein the adhesive sheath layer is positioned at least partially within the covering layer and between the absorbent core and the proximal sheath layer as a flat sheet.