| 摘要 |
An apparatus (10) for sewing tissue especially useful for tissue ligation, is provided having a housing (12) and a hollow shaft (14) which extends from the housing. At the distal end (16) of the shaft (14) along its interior is a movable driver member (19) disposed opposite a fixed member (20). A needle (24) is pivotably mounted at one end to the driver member (18) to extend, when the driver member is moved forward, through a slot (21) in the fixed member (20) and an opening (23) in the shaft (14), and to retract back into the shaft (14) when the driver member (18) is moved backward. At the distal end of needle (24) is a slotted hook (30) for capturing a loop of suture (76). The free ends (77) of the loop of suture (76) extend through a hole (32) of the fixed member (20). A lever (42) pivotably mounted in the housing (12) is coupled to the driver member (18) to translate linear motion forwards or backwards to the driver member to extend or retract needle (24), respectively. |
