| 摘要 |
The present invention is directed to a device for connecting a longitudinal member to a bone, the device including a lower part for fixation to the bone and an upper part having a transverse channel for receiving the longitudinal member and a slit defining a pair of elastically displaceable sidewalls. The device further includes a locking ring. The locking ring is moveable from a first position, wherein the sidewalls are elastically displaceable so that the longitudinal member can be moved into the channel, to a second position, wherein the sidewalls are substantially fixed with respect to each other so that the longitudinal member placed within the channel is fixed with respect thereto. The device further including a first groove sized and configured to receive the locking ring when in the first position and a second groove sized and configured to receive the locking ring when in the second position.
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