High-strength bioabsorbable suture

Abstract

A suture is provided having a multifilament sheath disposed thereabout a monofilament core. The multifilament sheath includes a plurality of yarns, and each of the plurality of yarns includes a plurality of threads. Further, the suture includes poly-4-hydroxybutyrate (P4HB).

1 - 20 . (canceled) 
     
     
         21 . A suture, comprising:
 a multifilament sheath including a plurality of yarns, the plurality of yarns comprising poly-4-hydroxybutyrate; and   a monofilament core comprising poly-4-hydroxybutyrate, wherein the multifilament sheath is disposed thereabout the monofilament core, wherein the multifilament sheath has between about 64.5 picks per inch and about 70.5 picks per inch, wherein the monofilament core is about a size 0, wherein the multifilament sheath comprises twelve yarns.   
     
     
         22 . The suture of  claim 21 , wherein the plurality of yarns includes a plurality of threads, and each of the threads comprise poly-4-hydroxybutyrate. 
     
     
         23 . The suture of  claim 21 , where each of the twelve yarns comprises about 60 threads. 
     
     
         24 . The suture of  claim 21 , wherein each of the twelve yarns is about 120 denier. 
     
     
         25 . The suture of  claim 21 , wherein the suture has an elongation to break between 34.8% and 50.9%. 
     
     
         26 . The suture of  claim 21 , wherein the suture has an elongation to break between 27.2% and 35.8% in a knotted configuration. 
     
     
         27 . The suture of  claim 21 , wherein the suture has an ultimate tensile strength between 139.9 Newtons and 195.7 Newtons. 
     
     
         28 . The suture of  claim 21 , wherein the suture has an ultimate tensile strength between 79.0 Newtons and 113.8 Newtons in a knotted configuration. 
     
     
         29 . The suture of  claim 21 , wherein the suture is about a size 2. 
     
     
         30 . The suture of  claim 21 , wherein the suture includes an enlarged portion disposed between a first end and a second end of the suture. 
     
     
         31 . The suture of  claim 30 , wherein the enlarged portion includes poly-4-hydroxybutyrate filaments. 
     
     
         32 . The suture of  claim 21 , wherein two of the yarns have violet colored threads and ten of the yarns have natural colored threads. 
     
     
         33 . The suture of  claim 21 , wherein the suture comprises a diameter within the range of 0.637 mm to 0.696 mm. 
     
     
         34 . The suture of  claim 21 , wherein the multifilament sheath is configured to maintain a cylindrical configuration when the monofilament core is removed. 
     
     
         35 . A suture, comprising:
 a bioabsorbable monofilament core;   a bioabsorbable multifilament sheath disposed thereabout the bioabsorbable monofilament core; and   wherein the suture consists essentially of poly-4-hydroxybutyrate, wherein the bioabsorbable monofilament core and the bioabsorbable multifilament sheath comprise the same material,   wherein the multifilament sheath is configured to maintain a cylindrical configuration when the monofilament core is removed, wherein the bioabsorbable monofilament core is about a size 0, wherein the bioabsorbable multifilament sheath comprises twelve yarns.   
     
     
         36 . The suture of  claim 35 , wherein the multifilament sheath has from about 54 to about 71 picks per inch. 
     
     
         37 . The suture of  claim 35 , wherein the suture has an ultimate tensile strength between 139.9 Newtons and 195.7 Newtons. 
     
     
         38 . The suture of  claim 35 , wherein the suture has an elongation to break between 34.8% and 50.9%. 
     
     
         39 . A suture, comprising:
 a multifilament sheath including a plurality of yarns, the plurality of yarns comprising poly-4-hydroxybutyrate; and   a monofilament core comprising poly-4-hydroxybutyrate, wherein the multifilament sheath is disposed thereabout the monofilament core,   wherein the suture comprises a diameter within the range of 0.637 mm to 0.696 mm, wherein the monofilament core is about a size 0, wherein the multifilament sheath comprises twelve yarns.   
     
     
         40 . The suture of  claim 35 , wherein the suture has an ultimate tensile strength between 139.9 Newtons and 195.7 Newtons.