Radially adjustable surgical instrument for heart surgery

Details Radially adjustable surgical instrument for heart surgery Radially adjustable surgical instrument for heart surgery

A - Human Necessities

61

B

A61B 17/00 (2006.01) A61B 17/28 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2234574

This invention is a hand-held surgical instrument with an improved handle (10), and a tool (12) with a body member (21) having at least one articulated member (14) thereon. The handle has an elongated base (20), a lever (34) with an actuator arm (44), and a mechanism (48) for connecting the lever to the base at a pivot point which mimics the natural pivot point of the surgeon's hand. Closing of the lever causes distal movement of an actuator rod (56) which actuates the tool. The lever is biased in the open position. The lever may be locked in different positions. A collar (281) allows rotation and selective locking of the tool.

Cette invention concerne un instrument chirurgical tenu à la main avec une poignée améliorée (10) et un outil (12) avec un corps (21), portant au moins un élément articulé (14). La poignée comporte une base allongée (20), un levier (34) avec un bras d'actionnement (44), et un mécanisme (48) pour relier le levier à la base au niveau d'un point de pivotement, celui-ci se comportant comme le point de pivotement naturel de la main du chirurgien. La fermeture du levier provoque un mouvement distal de la tige d'actionnement (56) qui actionne l'outil. Le levier est précontraint en position ouverte. Le levier peut être verrouillé dans différentes positions. Un collier (281) permet la rotation et le verrouillage sélectif de l'outil.

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