Method and apparatus for articulating the wrist of a...

Details Method and apparatus for articulating the wrist of a... Method and apparatus for articulating the wrist of a...

A - Human Necessities

61

B

A61B 17/28 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2713983

A medical instrument has a set of opposing jaws that can be articulated, both left and right, from centerline. The instrument has a proper bend radius and support for the jaw actuation member and cutter driving member. The bendable support for the drive members comprises tightly wound coil springs. Another embodiment of the invention controls the degree of articulation at the handle of the laparoscopic instrument. A further embodiment of the invention incorporates a locking mechanism to prevent motion of the wrist while the user performs other operations on the device. The locking mechanism also includes an indexing feature with which the user can index and choose the necessary amount of angle between preset angles.

La présente invention concerne un instrument médical comportant un jeu de mâchoires opposées qui peut être articulé, à gauche et à droite, depuis laxe central. Linstrument a un rayon de courbure approprié et un support pour lorgane dactionnement des mâchoires et lorgane dentraînement de lame. Le support cintrable  pour les organes dentraînement comporte des ressorts en spirale fortement enroulés. Un autre mode de réalisation selon linvention contrôle le degré darticulation au niveau du manche de linstrument laparoscopique. Un autre mode de réalisation selon linvention incorpore un mécanisme de verrouillage pour empêcher le mouvement de la poignée lorsque lutilisateur effectue dautres opérations sur le dispositif. Le mécanisme de verrouillage peut également comporter un élément dindexation grâce auquel lutilisateur peut indexer et sélectionner la quantité dangle nécessaire entre des angles prédéterminés.

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