Patent ID: 8430905

Claim:
A medical instrument comprising a shaft, a handle mounted on the proximal end of the shaft, and a tool mounted on the distal end of the shaft and activated by the handle, where the handle and the tool are in active connection by means of at least one activation rod and the tool adapted to be secured detachably by means of a tool shaft on the activation rod, for which purpose both the tool shaft and the activation rod have protuberances and recesses, which can be joined at least partially in a form-locking connection, with corresponding recesses and protuberances of the other of the tool shaft or activation rod, wherein the recesses and protuberances corresponding to one another are configured in such a way that the tool shaft and the activation rod are adapted to be brought into engagement with one another by means of a movement exclusively in a direction essentially perpendicular to the longitudinal axis of the activation rod, and that the tool shaft and the activation rod coupled to one another are nonmoveably fixed relative to one another in all other directions.