| 摘要 |
PCT No. PCT/CH91/00174 Sec. 371 Date Nov. 13, 1991 Sec. 102(e) Date Nov. 13, 1991 PCT Filed Aug. 15, 1991 PCT Pub. No. WO92/03100 PCT Pub. Date Mar. 5, 1992.This implant for an osteosynthesis device, in particular for spinal column correction, contains a lower part (2) to be anchored to the bone and an upper part (3) to be adjustably fixed to a longitudinal bar (4). The upper part (3) contains a channel (6) running from front to back and open on the top, which positions the two side arms (7), threaded on the inside (10), to hold the longitudinal bar (4). In addition, there is a clamp (5) for the longitudinal bar (4), which is comprised of a cap (11) with a coaxial, outer rim (15) to surround the arms (7) and a coaxial inner cylinder (12) introduced between the arms (7); the outer surface of the inner cylinder (12) contains threads (13) which correspond to the inner threads (10) of the upper part (3).
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