| 摘要 |
The invention relates to an artificial intervertebral disc for implanting between two vertebral bodies (W) comprising two end plates (1, 2) which bound a hollow space (4), which is filled with an elastically and/or plastically deformable nucleus (3), at two opposite sides, with the hollow space (4) being enclosed by a tubular fibre ring (5) such that the end plates (1, 2), together with the fibre ring (5), bound the hollow space (4) and the end plates (1, 2) are in tensile connection with the fibre ring (5). The fibre ring (5) is designed as elastically extensible in the radial and axial directions, with the fibre ring (5) having a larger modulus of elasticity than the nucleus (3) and the nucleus (3) and the fibre ring (5) interacting such that the elastic properties of the artificial intervertebral disc show a non-linear behaviour with increasing deformation at least with respect to a compression force (F).
|
