Patent ID: 8128651

Claim:
A medical instrument having a hollow shaft, on whose proximal end is positioned a handle consisting of at least two gripping members and on whose distal end there is a tool consisting of at least two jaw members, so that at least one jaw member of the tool can be displaced for opening and closing with respect to the at least one other jaw member of the tool by means of a rotatably configured gripping member of the handle, and the at least one displaceable jaw member and the corresponding gripping member of the handle, serving to displace the jaw member, are connected to one another by a push-pull rod that is positioned so that it can slide axially in the hollow shaft, wherein the axially slidable push-pull rod positioned in the hollow shaft is set into a rotary motion around its longitudinal axis by at least one helical-shaped guide track characterized in that the push-pull rod is configured in several parts, wherein at least two portions of the push-pull rod are connected by helical-shaped end portions and the portion of the push-pull rod which is connected with the handle is positioned on the rotatable gripping member of the handle so that said portion of the push-pull rod cannot rotate around its longitudinal axis.