DEVICE FOR VASCULAR CLOSURE

摘要

A vascular closure delivery system for closing a tissue wall opening is provided. In one embodiment, the vascular closure delivery system comprises a suturing apparatus, a suture delivery unit (100) and a suture knot system (300). The suturing apparatus and suture delivery unit (100) comprises at least one tube (120), at least one leg (110), a tensioning device (115), a pusher (130), a suturing apparatus (140), and an actuator (112, 113, 230). When the leg (110) is in an open position, the tensioning device (115) exerts tension on the leg such that the leg can move with respect to the tensioning device, and the pusher and suturing apparatus are in an delivery configuration for delivery of the suturing apparatus to the internal tissue wall. Further, actuation of the actuator (113) moves the pusher (130) towards the expulsion . end of the tube such that the suturing apparatus engaging end of the pusher engages the suturing apparatus and expels the suturing apparatus from the tube.