| 摘要 |
Apparatus for use in performing surgery comprising a rigid tubular member (10) having means (12) at one end for engaging two adjacent vertebrae members(V), a removable internal hollow tubular sleeve (15), a drill bit (22) for use in a surgical procedure, the drill bit (22) having a narrowed portion between the ends of the drill bit (22), the outside diameter of said drill bit (22) being slightly smaller than the inside diameter of said removable sleeve (15). <IMAGE> |
