| 摘要 |
The implant (1) has screws (10), around which deformable elastic members (4) are placed. Each screw has a threaded end (11) screwed in a tapped bore (12) of a plate (5) of an upper support (2). A head (13) of the screw is supported against an annular rib (14) defined by a through-bore (15) of a plate (6) of a lower support (3), where the head and the rib form an abutment for limiting spacing of the supports in a rachis direction. Fixation units are constituted of a recess (7) and blades (8), and are placed in a central position of the supports for fixing spinous process of vertebral columns. |
