	US 12,275,224 B2
	Wound cleaning product
Marc Pehr, Laudenbach (DE); Birthe Lang, Weinheim (DE); and Bernd Schlesselmann, Weinheim (DE)
Assigned to CARL FREUDENBERG KG, Weinheim (DE)
Appl. No. 17/630,938
Filed by CARL FREUDENBERG KG, Weinheim (DE)
PCT Filed Jul. 10, 2020, PCT No. PCT/EP2020/069478 § 371(c)(1), (2) Date Jan. 28, 2022, PCT Pub. No. WO2021/018544, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 10 2019 120 712.6 (DE), filed on Jul. 31, 2019.
Prior Publication US 2022/0203650 A1, Jun. 30, 2022
Int. Cl. B32B 5/24 (2006.01); B32B 5/06 (2006.01); B32B 5/18 (2006.01); D04H 1/498 (2012.01)

CPC B32B 5/245 (2013.01) [B32B 5/06 (2013.01); B32B 5/18 (2013.01); D04H 1/498 (2013.01); B32B 2250/02 (2013.01); B32B 2260/021 (2013.01); B32B 2266/06 (2013.01); B32B 2307/54 (2013.01); B32B 2307/728 (2013.01); B32B 2307/73 (2013.01); B32B 2535/00 (2013.01)]

14 Claims

1. A wound cleaning product comprising a composite material having a foam layer and a fiber layer arranged on a surface of the foam layer, wherein the fiber layer is at least partially thermally solidified, and the foam layer and the fiber layer are connected to one another by needling such that fibers of the fiber layer have penetrated into the foam layer and form capillary channels that extend from the fiber layer into the foam layer,

wherein the composite material has a maximum tensile strength/expansion measured according to EN 29073-03 (wet) of more than 40%.