| 摘要 |
<p>The present invention relates to a spine supporting system for correcting or fixing a spine to be a stable state at a diseased part in spine operation. The spine supporting system of the present invention, permits a inner bolt to be inserted in an outer cap preliminarily such that the initial centering of the inner bolt is achieved to a head only by inserting the outer cap to the head of the screw, and therefore makes the insertion of the outer cap and inner bolt to the head easy. Also, by forming a seat recess at an upper part of the outer cap, in which the head part of the inner bolt could be seated, the head, rod, and outer cap are joined to be integrated with each other so that mutual fixation becomes rigid. Further, by forming a round cut part at a lower part of the outer cap in which the rod is inserted, the insertion of the outer cap to the head becomes easy if the rod is lifted in the head.In addition, In the spine supporting system which the inner bolt and outer cap is integrated, since the upper and lower part of the inner bolt is supported by the double structure of the outer cap and reinforcement ring, steady and forceful rotation is ensured and the head part is supported rigidly.</p> |
