| 摘要 |
A device for connecting a bone fastener to a longitudinal rod is disclosed. The apparatus may have two bores spaced a distance apart and having generally parallel axes. A holding member may be associated with one bore, the member configured to engage a bone fastener such as a bone screw or pedicle hook. A rod coupling member may be associated with the other bore, the member configured to engage a longitudinal rod. The holding member and rod coupling member both are configured to articulate within their respective bores, thus allowing the rod and rod coupling, as well as the holding member and bone fastener, to rotate about the both the first and second axes. The holding member and rod coupling member further may be separately lockable to allow independent locking of the bone fastener and the rod to the connector, thereby preventing or enabling relative rotation as desired.
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