US 12,201,501 B2
Medical dressings with stiffening systems
Audrey A. Sherman, Woodbury, MN (US); Thomas R. J. Corrigan, St. Paul, MN (US); Dawn V. Muyres, Stillwater, MN (US); Silvia G. B. Guttmann, St. Paul, MN (US); Anne C. F. Gold, South St. Paul, MN (US); Michael R. Plumb, White Bear Lake, MN (US); Todd M. Fruchterman, West Lakeland, MN (US); Alex S. Plasencia, Shoreview, MN (US); Donald G. Peterson, Shoreview, MN (US); Krystal J. Scheibel, Minneapolis, MN (US); Zachary M. Ingram, Sioux, IA (US); and Guido Hitschmann, Neuss (DE)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 17/609,925
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
PCT Filed Jun. 1, 2020, PCT No. PCT/IB2020/055178
§ 371(c)(1), (2) Date Nov. 9, 2021,
PCT Pub. No. WO2020/245721, PCT Pub. Date Dec. 10, 2020.
Claims priority of provisional application 62/910,669, filed on Oct. 4, 2019.
Claims priority of provisional application 62/857,501, filed on Jun. 5, 2019.
Prior Publication US 2022/0226161 A1, Jul. 21, 2022
Int. Cl. A61F 13/02 (2024.01); A61F 13/00 (2024.01); A61F 13/0246 (2024.01)
CPC A61F 13/023 (2013.01) [A61F 13/0246 (2013.01); A61F 2013/00412 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A medical dressing comprising:
a backing layer comprising a first major surface, a second major surface, and a perimeter defining a backing area on each of the first and second major surfaces;
adhesive on at least a portion of the first major surface of the backing layer, wherein the backing layer and the adhesive form a substantially contact transparent backing layer/adhesive composite; and
a stiffening system fixedly attached to the backing layer, wherein the stiffening system is contained within a selected region of the backing layer, the selected region defining a region perimeter;
wherein the stiffening system comprises a plurality of elongated stiffening elements contained within the region perimeter of the selected region, wherein each stiffening element of the plurality of stiffening elements extends along a length from a first end to a second end, wherein the first end of each stiffening element of the plurality of elongated stiffening elements is located closer to a center of the selected region than the second end, wherein the second end of each stiffening element of the plurality of elongated stiffening elements is located closer to the region perimeter than the first end, wherein each stiffening element extends across and through a central support proximate a geometric center of the stiffening system and further wherein the selected region occupied by the stiffening system is substantially contact transparent.