| 摘要 |
A pedicle screw (10) for use in internal fixation of the spine comprising a shaft (11) threaded at one end (12) for insertion into a bone and, at the other end, having a yoke (13) for receiving a rod (15), said yoke having a cusp adapted to bear against the rod and means for clamping the rod against the cusp, while permitting adjustment of the angle between said rod and said yoke. |
