| 摘要 |
Methods and systems of forming barbed sutures (18) from blown films (12) are provided. A method for forming a barbed suture (18) includes providing (2) a blown film (12), cutting (6) slits (16) into an outer edge (14) of the blown film (12), and twisting (8) the blown film (12) such that the slits (16) protrude from the twisted blown film (12) to form a barbed suture (18). A system (100) for forming a barbed suture (18,118) includes a set of heating rollers (110) configured for stiffening an outer edge (14,114) of a blown film (12,112), a set of cutting rollers (120) configured for forming slits (16,116) in the outer edge (14,114), a set of twisting rollers (130) configured for twisting the blown film (12,112) into a suture (18,118), and a heat source to set the suture (18,118). |
