Bioabsorbable multifilament yarn and methods of manufacture
The present invention relates to a process of forming bioabsorbable, multifilament yarn from Lactide-rich copolymers, including the steps of extruding and spinning a Lactide-rich copolymer to form a spun multifilament yarn, pre-tensioning the spun multifilament yarn to form a pre-tensioned yarn, hea...
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| creator | TIANO ANTHONY WALKER EDWARD ANTAL ATTILA EGIDIO DOMINICK CHEN GAOYUAN |
| description | The present invention relates to a process of forming bioabsorbable, multifilament yarn from Lactide-rich copolymers, including the steps of extruding and spinning a Lactide-rich copolymer to form a spun multifilament yarn, pre-tensioning the spun multifilament yarn to form a pre-tensioned yarn, heating the pre-tensioned yarn to form a pre-tensioned, preheated yarn, annealing and drawing the pre-tensioned, preheated yarn for a first time, annealing and drawing the yarn for a second time, cooling the twice-drawn yarn to a lower temperature, and taking-up the cooled multifilament yarn, to yarns prepared by the process and to medical devices prepared from such yarns. |
| format | Patent |
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| subjects | CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MECHANICAL FINISHING OF YARNS OR ROPES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL TEXTILES WARPING OR BEAMING YARNS YARNS OR THREADS |
| title | Bioabsorbable multifilament yarn and methods of manufacture |
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