Absorbable poly (p-dioxanone-co-glycolide) monofilament fibers possessing mid-term strength retention post-implantation

摘要

Novel absorbable monofilament sutures and fibers having unique and improved properties are disclosed including mid-term strength retention post-implantation. Also disclosed is a novel method of manufacturing absorbable monofilament sutures and fibers. The sutures and fibers are extruded from poly(p-dioxanone-co-glycolide) copolymers.

主权项

1. An absorbable monofilament suture, comprising:
a poly(p-dioxanone-co-glycolide) copolymer, wherein the mole percent of polymerized p-dioxanone is from about 90 to about 94, the mole percent of polymerized glycolide is from about 6 mole percent to about 10 mole percent, the copolymer made utilizing a monofunctional polymerization initiator and a difunctional polymerization initiator at a mole ratio of monofunctional initiator to difunctional initiator of from about 40/60 to about 60/40, wherein said suture has a straight tensile strength of at least 80 Kpsi, a Young's Modulus of less than 200 Kpsi, and a breaking strength retention (BSR) of at least 50% at 3 weeks post-implantation and at least 30% at 4 weeks post-implantation.