发明名称 Suture containing barbs
摘要 Methods and systems of forming barbed sutures from blown films are provided. A method for forming a barbed suture includes providing a blown film, cutting slits into an outer edge of the blown film, and twisting the blown film such that the slits protrude from the twisted blown film to form a barbed suture. A system for forming a barbed suture includes a set of heating rollers configured for stiffening an outer edge of a blown film, a set of cutting rollers configured for forming slits in the outer edge, a set of twisting rollers configured for twisting the blown film into a suture, and a heat source to set the suture.
申请公布号 US8303881(B2) 申请公布日期 2012.11.06
申请号 US20100914302 申请日期 2010.10.28
申请人 LAURIA PAUL;COVIDIEN LP 发明人 LAURIA PAUL
分类号 B29C53/14;D01D5/42 主分类号 B29C53/14
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