| 摘要 |
<p>The device consists of a threaded rod (2), an occipital component (1A) attached to the rod by a coupling and equipped with a spike (12a) or screw for fixing it to the occiput, and at least one vertebral component (30,4) with connectors (32,45) for attaching to the cervical vertebrae. The occipital component is made in one piece, with a contact plate (11A) for fastening to the occiput and a shoe (14A) at one end of the plate which receives and is attached to the rod. The contact plate forms an angle of about 40 - 60 deg. with the section of the rod which passes through the shoe. The contact plate can have two flat sections (181,182) separated by an obtuse-angled bend (18) of a little less than 180 deg..</p> |
