US2017096748A1PendingUtilityA1

Crosslinked fibers and method of making same using uv radiation

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Assignee: COVIDIEN LPPriority: Feb 21, 2009Filed: Dec 15, 2016Published: Apr 6, 2017
Est. expiryFeb 21, 2029(~2.6 yrs left)· nominal 20-yr term from priority
Inventors:Ahmad Robert HadbaSébastien Ladet
D01F 6/86C08G 75/045A61L 31/16D10B 2331/30A61L 31/06D10B 2509/00D01F 6/78D01D 10/00
66
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Claims

Abstract

Cross-linked fibers include first and second precursors, each possessing a core and at least one functional group known to have click reactivity when exposed to UV radiation. Mixtures of the first and second precursors are extruded to produce a filament and irradiated with UV light during the extrusion process.

Claims

exact text as granted — not AI-modified
1 - 14 . (canceled) 
     
     
         15 . A filament comprising UV cross-linked first and second precursors each functionalized with at least one functional group having click reactivity when exposed to UV radiation, wherein at least one of the first or second precursors is functionalized with one or more thiol groups. 
     
     
         16 . The filament  claim 15 , wherein at least one of the first or second precursors is functionalized with one or more alkene groups. 
     
     
         17 . The filament of  claim 15 , wherein the at least one functional group of the first precursor is a thiol group and the at least one functional group of the second precursor is an alkene group. 
     
     
         18 . The filament of  claim 15 , wherein the first precursor and optionally the second precursor comprises a polyol core. 
     
     
         19 . The filament of  claim 18 , wherein the polyol core is selected from the group consisting of polyethers, polyesters, polyether-esters, polyalkanols, and combinations thereof. 
     
     
         20 . The filament of  claim 19 , wherein the polyol core is a polyether. 
     
     
         21 . The filament of  claim 20 , wherein the polyether is poly(ethylene glycol). 
     
     
         22 . The filament of  claim 19 , wherein the polyol core is a polyester. 
     
     
         23 . The filament of  claim 19 , wherein the polyol core is a polyether-ester. 
     
     
         24 . A medical device comprising at least one filament comprising UV cross-linked first and second precursors each functionalized with a plurality of functional groups having click reactivity when exposed to UV radiation, wherein at least one of the first or second precursors is functionalized with one or more thiol groups. 
     
     
         25 . The medical device of  claim 24 , wherein at least one of the first or second precursors is functionalized with one or more alkene groups. 
     
     
         26 . The medical device of  claim 24 , wherein the at least one functional group of the first precursor is a thiol group and the at least one functional group of the second precursor is an alkene group. 
     
     
         27 . The medical device of  claim 24 , wherein the first precursor and optionally the second precursor comprises a polyol core. 
     
     
         28 . The medical device of  claim 27 , wherein the polyol core is selected from the group consisting of polyethers, polyesters, polyether-esters, polyalkanols, and combinations thereof. 
     
     
         29 . The medical device of  claim 28 , wherein the polyol core is a polyether. 
     
     
         30 . The medical device of  claim 29 , wherein the polyether is poly(ethylene glycol). 
     
     
         31 . The medical device of  claim 28 , wherein the polyol core is a polyester. 
     
     
         32 . The medical device of  claim 28 , wherein the polyol core is a polyether-ester. 
     
     
         33 . The medical device of  claim 24 , wherein the medical device is selected from the group consisting of monofilament sutures, multifilament sutures, yarns, meshes, slings, patches, wound dressings, drug delivery devices, fasteners, pledgets, buttresses, and adhesion barriers. 
     
     
         34 . The medical device of  claim 33 , wherein the medical device is a monofilament or multifilament suture. 
     
     
         35 . The medical device of  claim 33 , wherein the medical device is a mesh. 
     
     
         36 . The medical device of  claim 24 , further comprising at least one bioactive agent.

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