Patent ID: 8709023
Filing Date: 2014-04-29
Classification: A61F,A61L,D04B,D04C,D10B

Abstract:
1. A warp-knitted composite mesh having a minimum area density of 50 g/m 2 , the mesh comprising: a slow-absorbing, biodegradable multifilament yarn component having an individual filament diameter of less than about 20 microns, the slow-absorbing yarn component comprising a segmented copolymer comprising at least 80 percent of l-lactide-based sequences; and a fast-absorbing multifilament yarn component having an individual filament diameter of greater than 20 microns, the fast-absorbing yarn component comprising a segmented polyaxial copolymer comprising at least 70 percent of glycolide-based sequences; wherein the composite mesh is knit in a four bar pattern wherein the slow-absorbing yarn component is knit in a two bar pattern and the fast-absorbing yarn component is knit in a two bar pattern and are initially mechanically interdependent, and wherein upon incubation in a buffered solution at a pH of 7.2 at about 50° C. for about 2 weeks the composite mesh retains more than 20 percent of its maximum burst force and undergoes at least 12 percent elongation under a force of 16 N per cm of mesh width.