The present invention relates to a device for the minimally invasive surgical intervention in the region of the wirbelsäulenspondylodese on the human or animal body, wherein the instrumentation (1) a guide instrument (2) for the introduction of further instruments (3) of the tools (1) in the human or animal body, the guide instrument (2) a set up in the longitudinal direction of the linkage means 17-20 could instruments no channel (4), and wherein the instrumentation (1) is a guide wire (5) for guiding the instrument (3) of the tools (1) into the intervertebral space by the instruments no guide channel (4) can be guided, wherein the guide wire (5) at its distal end (6) in the form of a hook-shaped mandrel (7) is formed and the guide wire (5) in front of the hook-shaped mandrel (7) has a cross-sectional widening (8) and the instruments (3) of the tools (1) for receiving the guide (5) in the longitudinal direction of the instruments (3) are continuously cannulated (9).
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