The present invention relates to a kind of centrum for centrum to be (v) fixed on bar (2) is fixed device (1), the device (1) includes the main body (3) with u tee sections or the basic flexible strip (4 in u shapes, 4 ), for by the centrum and the slot (17) for being equipped with band, and (m), flexible-belt can to carry out the device of adjustable locking in lock body to bar. The flexible strip (4,4 ) includes ring (5,5 ), and the ring (5,5 ) is closed on it, is provided with flexible blade (6,6 ) on the ring (5,5 ), and the blade is designed to form guiding channel around vertebra and in combination.
