US 12,465,475 B2
Elastomeric auxetic membrane for urogynecological and abdominal implantations
Katrina Marquita Knight, Pittsburgh, PA (US); Pamela A. Moalli, Pittsburgh, PA (US); Steven D. Abramowitch, Butler, PA (US); and Ken Gall, Durham, NC (US)
Assigned to Magee-Womens Research Institute & Foundation, Pittsburgh, PA (US)
Filed by Magee-Womens Research Institute & Foundation, Pittsburgh, PA (US)
Filed on Jan. 11, 2022, as Appl. No. 17/573,216.
Claims priority of provisional application 63/205,849, filed on Jan. 11, 2021.
Prior Publication US 2022/0218458 A1, Jul. 14, 2022
Int. Cl. A61F 2/00 (2006.01); A61L 27/18 (2006.01); A61L 27/50 (2006.01)
CPC A61F 2/0063 (2013.01) [A61L 27/18 (2013.01); A61L 27/50 (2013.01); A61F 2002/0068 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An elastomeric membrane for implantation in a human body, comprising:
a plurality of fibers, comprised of at least one polymer; and
a plurality of pores, wherein each pore is defined by the plurality of fibers and has an auxetic shape such that a size of the pores expands in a direction transverse to a longitudinal axis when the membrane is subject to a tensile load along the longitudinal axis,
wherein the plurality of fibers have an original length and are configured to return to a second length after tensile loading or unloading at 15 N, wherein the second length is less than or equal to 40% longer than the original length.