US 5,964,779 AGranted

Surgical tubular-shafted instrument

AssigneeAesculap AG

InventorsRupert Mayenberger, Pedro Morales, Dieter Weisshaupt

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Abstract

In a surgical tubular-shafted instrument comprising a tubular shaft and a gripping part connected thereto, a tool pivotable about an axis of rotation extending transversely to the longitudinal axis of the shaft, and a push element in the shaft, the push element being movable by the gripping part in the longitudinal direction of the shaft and being in engagement with the tool by using projections and recesses arranged in spaced relation to the axis of rotation of the tool such that the tool is pivotable about its axis of rotation upon displacement of the push element, in order to make higher loading possible with small dimensions, it is proposed that a ring-shaped cage be arranged on the push element and surround the axis of rotation of the tool and the point of engagement of the projection and the recess, and the inside wall of the cage carry the projection or the recess of the push element.

Claims12

Dependent claims

A surgical tubular-shafted instrument, comprising:

a tubular shaft and a gripping part connected thereto,
a tool pivotable about an axis of rotation extending transversely to a longitudinal axis of said shaft,
a push element in said shaft,
said push element being movable by said gripping part in the longitudinal direction of said shaft, and
a ring-shaped cage arranged on said push element, said cage surrounding the axis of rotation of said tool, wherein:
said push element is in engagement with said tool by means of at least one projection that engages at least one corresponding recess at a point of engagement to enable said tool to pivot about its axis of rotation upon displacement of said push element,
said at least one projection and said at least one corresponding recess are arranged in spaced relation to the axis of rotation of said tool,
said ring-shaped cage surrounds the point of engagement, and
an inside wall of said cage carries said projection or said recess.

6 more elements

Dependencies are inferred from the claim text.