公开(公告)号：US20250032674A1

公开(公告)日：2025-01-30

申请号：US18718647

申请日：2022-12-12

Applicant: DSM IP ASSETS B.V.

Inventor： Mark Kenneth HAZZARD ,  Noel L. DAVISON ,  Mandy Maria Jozefina WIERMANS ,  Nicolaes Hubertus Maria DE BONT ,  Loes Heleen PLUYMEN

IPC: A61L27/48 ,  B32B5/02 ,  B32B27/12 ,  B32B27/40

Abstract: Disclosed herein are composite sheets and prosthetic medical devices formed therefrom. In an embodiment, a composite sheet has a thickness of 25-250 μm and comprises 10-70 mass %, based on the total mass of the composite sheet, of a knit fabric having thickness of 15-225 μm and comprising strands of 2-50 dtex, the strands comprising biocompatible polymer fibers, the strands comprising biocompatible polymer fibers, wherein the fabric comprises a thickness in a plurality of first locations, and pores in a plurality of second locations; and 30-90 mass %, based on the total mass of the composite sheet, of a polyurethane coating, wherein the polyurethane coating coats the fabric and fills the pores of the fabric such that the composite sheet is substantially impermeable to water.