| 摘要 |
The intervertebral stabilization device (12, 170) preferably includes a planar spring (20, 180) enclosed within a housing (22, 172). The housing (122, 172) is joined to an articulation component (24, 25, 174, 175) at either end, and the articulation components (24, 25, 174, 175) have couplings (28, 178) connectable to anchoring components (19) which are securable to adjacent vertebrae. The planar spring (20, 180) can flex and retract providing relative motion between the adjacent vertebrae. The articulation components (24, 25, 174, 175) are ball and socket joints which allow the entire assembly to flexibly follow the curvature of the spine. A fusion rod (162) with articulation components and couplings (164) at either end may be substituted for the spring device. The couplings enable interchangeability between a fusion rod (162) assembly and spring assembly (12, 170). |
