US 12,453,659 B2
Fluid-managing medical adhesive articles with microstructured surfaces
Audrey A. Sherman, Woodbury, MN (US); Bret W. Ludwig, Oakdale, MN (US); Rajan B. Bodkhe, Woodbury, MN (US); and Guy M. Kallman, Woodbury, MN (US)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 17/629,817
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
PCT Filed Jul. 20, 2020, PCT No. PCT/IB2020/056797
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/014333, PCT Pub. Date Jan. 28, 2021.
Claims priority of provisional application 62/878,495, filed on Jul. 25, 2019.
Prior Publication US 2022/0257424 A1, Aug. 18, 2022
Int. Cl. A61F 13/0246 (2024.01); A61F 13/02 (2024.01)
CPC A61F 13/0256 (2013.01) [A61F 13/0253 (2013.01); A61F 13/0266 (2013.01)] 13 Claims
 
1. A method of providing fluid transport from an adhesive article attached to mammalian skin comprising:
providing an adhesive article comprising:
a substrate with a first major surface and a second major surface;
an adhesive layer with a first major surface and a second major surface, wherein the second major surface of the adhesive layer is in contact with the first major surface of the substrate, and wherein the first major surface of the adhesive layer comprises a microstructured surface comprising at least one channel that extends to at least one boundary of the adhesive layer, wherein the adhesive layer comprises a pressure sensitive adhesive or a gel adhesive and wherein the microstructured surface comprises a permanently microstructured surface; and
a release liner comprising at least one structured release surface configured to impart the permanently microstructured surface in the adhesive layer;
removing the release liner from the permanently microstructured surface of the adhesive layer; and
attaching the permanently microstructured surface of the adhesive article to mammalian skin, wherein the channels of the microstructured surface permits the transport of fluid.