| 摘要 |
<p>The invention concerns spinal osteosynthesis systems. The inventive device is essentially characterized in that it comprises at least a pedicular screw (1) with a head (5), a lug (2), a plate (6), means (10) for fixing the end (4) of the lug on the head (5) including a hemispherical portion (11) integral with the head (5), a hemispherical portion (12) integral with the end (4), said portion being complementary to the portion (11), means for mutually fixing together the hemispherical portions (11, 12), and means (20) for fixing the plate (6) on the end (7) of the lug (2) including a hemispherical portion (23) integral with the plate (6), a hemispherical portion (24) integral with the end (7), said portion (24) being complementary to the portion (23), and means for mutually fixing together the hemispherical portions (23, 24) when they co-operate inside each other.</p> |
