Patent ID: 7749271

Claim:
A surgical guiding instrument for a surgical machining tool, with an implant body for insertion into an intervertebral space between adjacent vertebral bodies of a vertebral column of a human being or an animal, the guiding instrument comprising a shaft and a stop device for delimiting a depth of insertion of the implant body into the intervertebral space, the shaft having a distal end and a proximal end, the implant body being arranged at the distal end of the shaft and defining two bearing surfaces positionable against the adjacent vertebral bodies, the stop device having at least one stop movably mounted at the distal end of the shaft or on the implant body, the stop having a stop surface pointing in a distal direction transversely or substantially transversely to at least one of the bearing surfaces, wherein the stop device comprises an actuating member arranged at the proximal end or in the region of the proximal end of the shaft and a power transmission member mounted on the shaft, and the actuating member, the power transmission member and the at least one stop are arranged and designed to interact in such a way that the at least one stop is movable in proximal and/or distal direction by actuating the actuating member, the actuating member being releasably connectable to the power transmission member.