| 摘要 |
A spinal cross connector connects a pair of longitudinally extending rods anchored to the spine. The cross connector has a first element, including a body, a rod gripping portion formed on a first end of the body and a circular arm extending along a first axis from a second end of the body. A second element is provided which has a body, a rod gripping portion formed on one end and a flange having a bore on a second end. The flange has a bearing surface surrounding the bore and another bearing surface it formed on the inner surface of the bore. A pivot element has a head portion, including a bore therethrough for engaging the arm on the first element. The pivot element has a threaded portion extending from the head along a second axis and a generally cylindrical bearing surface engageable with the bearing surface inside the bore. A lock nut is operatively engageable with the threaded portion on the pivot element to lock the assembly together.
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