Knot tying method and apparatus

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/04 (2006.01) A61B 17/12 (2006.01) A61B 17/06 (2006.01) A61B 17/28 (2006.01) A61B 17/30 (2006.01)

Patent

CA 2181469

This invention is a method and apparatus for placing and tying a knot such as laparoscopy knot. A knot pusher assembly (20) including an outer tube (22) and an inner tube (50) are positioned, and a plunger assembly (80) is plunged through the knot pusher assembly. The plunger assembly includes a knot carrier (120) having an at least partially formed knot (142) with a free end. The free end is placed around the object to be tied and grasped with a clamp. The knot is released from the knot carrier and the free end is pulled back through the partial knot to complete and tighten the knot. The knot is tightened and placed using the knot pusher assembly, and the free end is cut by placing it into aligned slots (34, 70) on the outer tube and inner tube, and rotating the inner tube in relation to the outer tube to unalign the slots.

Procédé et appareil utilisés pour placer et nouer un noeud tel qu'un noeud de laparoscopie. Un ensemble poussoir (20) pour noeud comprenant un tuyau externe (22) et un tuyau interne est positionné et un ensemble piston (80) est poussé dans l'ensemble poussoir pour noeud. L'ensemble piston comprend un porte-noeud (120) qui supporte un noeud (142) au moins partiellement formé présentant une extrémité libre. Cette extrémité libre est placée autour de l'objet à attacher et à serrer avec un clamp. Le noeud est détaché du porte-noeud et l'extrémité libre est tirée vers l'arrière dans le noeud partiellement fait pour terminer et serrer le noeud. Ledit noeud est serré et placé à l'aide de l'ensemble poussoir pour noeud et l'extrémité libre est coupée lorsqu'on la place dans des fentes alignées (34, 70) situées sur les tuyaux externe et interne, et lorsqu'on fait tourner le tuyau interne par rapport au tuyau externe pour désaligner les fentes.

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