发明名称 Bioabsorbable multifilament yarn and methods of manufacture
摘要 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.
申请公布号 US6743505(B2) 申请公布日期 2004.06.01
申请号 US20020205926 申请日期 2002.07.26
申请人 ETHICON, INC. 发明人 ANTAL ATTILA;CHEN GAOYUAN;EGIDIO DOMINICK;TIANO ANTHONY;WALKER EDWARD
分类号 A61L17/12;D02G3/44;(IPC1-7):D02G3/00;D01D5/12 主分类号 A61L17/12
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