| 摘要 |
This invention is an endoscopic surgical instrument suitable for use with a needle grasper (140) having a rotational translation device (50) for creating rotational motion at the distal end of the surgical instrument in a non 1:1 ratio to rotational energy imparted at the handle (10) of the surgical instrument. The shaft (100) of the surgical instrument has an articulated segment (120) capable of remote adjustment to articulate the effector unit (140) at the end of the surgical instrument. The effector unit (140) may be a needle gripper (140) having an upwardly pointed V-shaped notch (146) in a channeled upper jaw (142), and a convex gripping surface (153) on the lower jaw (144) such that grasping a curved suture needle between the upper and lower jaws (142, 144) serves to automatically orient the needle perpendicular to the needle gripper (140) with the curvature pointed down.
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