| 摘要 |
<p>The present invention relates to a vertebral fixation device, system and method for holding a spinal vertebra on a rod (2), having a fixation element comprising a component of substantially U-shaped cross section with a first branch, a bottom and a second branch, a loop (25) formed by a flexible band (22) for connecting the vertebra to the component, the component being provided on each of its branches with a recess for the band to pass through, the recesses being situated opposite each other, and adjustable means (26) for immobilizing the flexible band against the wall of the bottom of the U via the rod, comprising a connector screw which connects the two branches of the U and which is provided, at one end, with a head (31) for longitudinal immobilization of the screw with respect to a first branch of the U and, at the other end, with a thread for screwing in the second branch of the U. The immobilizing means moreover have a removable sleeve (35) for passage of the screw, insertable in the first branch of the U, in longitudinal abutment with the head (31) of the screw, and having a chamfered part (40) designed to cooperate with the rod and to compress the band between the rod and the bottom of the U upon clamping.</p> |
