Patent ID: 7854751

Claim:
In the combination of a bone attachment structure having a receiver and a guide tool having receiver attachment structure at a lower end thereof that is operably mateable with the receiver, the improvement comprising: a) the receiver having an aperture and a recess communicating with the aperture; and b) the guide tool including a inner tube having a proximal end, a distal end and a lumen extending from the proximal end to the distal end, the inner tube having a first slot formed therein, the first slot opening at the distal end and extending a first slot length toward the proximal end of the inner tube, the guide tool including an outer tube coaxially disposed about the inner tube, the outer tube having a proximal end, a distal end and a lumen extending from the proximal end to the distal end, the outer tube having a second slot formed therein, the second slot opening at the distal end and extending a second slot length toward the proximal end of the outer tube, the distal end of the outer tube having an inner projection, the projection having mating structure receivable in the recess for operably resisting radial splaying and separation of the tool from the receiver when joined together.