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US 7,329,271 B2Granted
High strength suture with absorbable core
AssigneeEthicon, Inc.
InventorsIlya Koyfman, Terry E. Lawler, Robert C. Di Luccio, Dennis D. Jamiolkowski
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Abstract
A novel high tensile strength semi-absorbable composite suture with minimized non-absorbable mass. The suture has a core made from a bioabsorbable polymer. The core is covered by a braided sheath. The braided sheath is made from an absorbable yarn and a bioabsorbable yarn. The bioabsorbable yarn is made from a least one filament of a bioabsorbable polymer. The nonabsorbable yarn is made from at least one filament of ultra high molecular weight polyethylene.
Claims21
A surgical suture, comprising:
- an inner core comprising at least one yarn comprised of at least one fiber, said fiber comprising a bioabsorbable polymer;
- and,
- an outer braided sheath comprising a second yarn comprised of at least one nonabsorbable fiber and a third yarn comprising at least one bioabsorbable fiber, wherein the second and third yarns are in intertwining contact, and wherein the bioabsorbable first and bioabsorbable third yarns comprise a polymer prepared from lactone monomers selected from the group consisting of p-dioxanone, ε-caprolactone, glycolide, L(−)-lactide, D(+)-lactide, meso-lactide, trimethylene carbonate, and combinations thereof, and wherein the nonabsorbable fiber comprises ultra high molecular weight polyethylene, and wherein the suture comprises about 55 wt. % to about 70 wt. % of bioabsorbable polymer.
A method of approximating tissue, comprising:
- providing a suture, said suture comprising:
- an inner core comprising at least one yarn comprised of at least one fiber, said fiber comprising a bioabsorbable polymer;
- and,
- an outer braided sheath comprising a second yarn comprised of at least one nonabsorbable fiber and a third yarn comprising at least one bioabsorbable fiber, wherein the second and third yarns are in intertwining contact,
- and wherein the bioabsorbable first and bioabsorbable third yarns comprise a polymer prepared from lactone monomers selected from the group consisting of p-dioxanone, ε-caprolactone, glycolide, L(−)-lactide, D(+)-lactide, meso-lactide, trimethylene carbonate, and combinations thereof, and wherein the nonabsorbable fiber comprises ultra high molecular weight polyethylene, and wherein the suture comprises about 55 wt. % to about 70 wt. % of bioabsorbable polymer,
- stitching said suture through tissue;
- and,
- tying a knot in the suture.
5 more elements
Dependencies are inferred from the claim text.