Patent ID: 8603133

Claim:
A medical instrument comprising: a hollow shaft; a tool positioned on a distal end of said shaft, said tool having a rigid jaw member and a rotatable jaw member that rotates with respect to said rigid jaw member, said rigid jaw member and said rotatable jaw member being mounted on one another by mounting pins; a handle positioned on a proximal end of said shaft; a push-pull rod mounted in said shaft, said push-pull rod providing active connection between said tool and said handle, said push-pull rod comprising a hollow slide tube that is adapted to slide axially in said shaft and connect with said rotatable jaw member by means of an actuation element, said actuation element being essentially rod-shaped; and said rigid jaw member of said tool being a separate unit which is connectable to said distal end of said shaft via said mounting pins which are formed on an outside of and in one piece with said rotatable jaw member; wherein said distal end of said shaft has substantially semicircular-shaped distally-facing recesses and a proximal end of said rigid jaw member has substantially semicircular-shaped proximally-facing recesses such that, in connecting said rigid jaw member with said shaft, said distally-facing recesses and said proximally-facing recesses form mounting recesses which completely surround said mounting pins.