Automatic needle-passer suturing instrument

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/04 (2006.01) A61B 17/06 (2006.01)

Patent

CA 2265832

An automatic suturing instrument (10) generally includes a proximal actuation handle assembly (12), a flexible tubular member (14), a control wire (18), and an end effector assembly (20). The control wire extends through the tubular member and the end effector assembly is coupled to the distal end of each of the tubular member and the control wire, while the handle (22) is coupled to the proximal end of each of the tubular member and the control wire. Actuation of the handle moves the control wire relative to the tubular member and thereby moves the end effector assembly (20) from an open to a closed position. The end effector assembly generally includes two end effectors (34a, 34b), a needle (36) engaged by one of the end effectors (but which can be engaged by either end effector alternately), and a suture material. The end effector assembly further includes a needle passing mechanism that automatically alternates which end effector engages the needle each time the end effectors are moved into a closed position.

Un instrument de suture automatique (10) comprend de manière générale un ensemble poignée d'actionnement proximale (12), un élément tubulaire flexible (14), un câble de commande (18) et un ensemble effecteur terminal (20). Le câble de commande s'étend à l'intérieur de l'élément tubulaire, et l'ensemble effecteur terminal est couplé à l'extrémité distale de l'élément tubulaire et du câble de commande, tandis que la poignée (22) est couplée à l'extrémité proximale de l'élément tubulaire et du câble de commande. L'actionnement de la poignée déplace le câble par rapport à l'élément tubulaire, faisant ainsi passer l'ensemble effecteur terminal (20) d'une position ouverte à une position fermée. L'ensemble effecteur terminal comprend généralement deux effecteurs terminaux (34a, 34b), une aiguille (36) engagée par l'un des effecteurs (mais qui peut être engagée alternativement par l'un ou l'autre) et un matériau de suture. Il comporte également un mécanisme de passage de l'aiguille, qui fait alterner automatiquement l'effecteur engageant l'aiguille chaque fois que les effecteurs passent en position fermée.

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