High strength suture with absorbable core and suture anchor combination

Patent metadata

Field	Value
Publication number	US-9642930-B2
Application number	US-201514602601-A
Country	US
Kind code	B2
Filing date	Jan 22, 2015
Priority date	Dec 18, 2003
Publication date	May 9, 2017
Grant date	May 9, 2017

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.

First claim

We claim:

1. A combination of a surgical suture and a suture anchor, comprising:
I) a suture anchor; and,
II) a surgical 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 40 wt. % to about 70 wt. % of bioabsorbable polymer, wherein the suture is mounted to the suture anchor.

2. The combination of claim 1 , wherein the bioabsorbable yarns comprise polydioxanone.

3. The combination of claim 2 wherein the yarn comprises a filament having a denier greater than 3 denier per filament.

4. The combination of claim 2 wherein the yarn comprises a filament having a denier greater than 12 denier per filament without substantial adverse effect to suture handling and stiffness when compared to the commercially available sutures prepared from ultra high molecular weight polyethylene/PET.

5. The combination of claim 2 wherein the yarn comprises a filament having a denier greater than 12 denier per filament without substantial adverse effect to suture handling and stiffness when compared to the sutures prepared from polyethylene terephthalate with a denier per filament less than 3.

6. The combination of claim 1 , wherein the bioabsorbable first and third yarns comprise a pharmaceutical composition.

7. The combination of claim 6 wherein the first and third yarns comprise a pharmaceutical composition selected from the group consisting of analgesics, antibiotics, anti-inflammatories, and pain killers.

8. The combination of claim 1 wherein the polyethylene yarn comprises an ultra high molecular weight polyethylene having a weight average molecular weight of about 500,000 to about 5,000,000 g/mole.

9. The combination of claim 1 , additionally comprising a coating on the suture.

10. The combination of claim 1 additionally comprising a surgical needle mounted to one end.

11. The combination of claim 1 wherein the core consists essentially of bioabsorbable polymer.

Assignees

• Depuy Mitek Llc

Inventors

• Koyfman Ilya
• Lawler Terry E
• Di Luccio Robert C
• Jamiolkowski Dennis D

Classifications

• A61B2017/06171

  helically or spirally coiled · CPC title

• A61B2017/0414

  having a suture-receiving opening, e.g. lateral opening · CPC title

• D10B2509/04

  Sutures · CPC title

• A61L2300/406

  Antibiotics · CPC title

• A61B17/06166 Primary

  Sutures (suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M) · CPC title