Intervertebral disk implant
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Abstract
The invention relates to intervertebral disc implants that imitate the natural freedom of movement and facilitate translational and/or rotational displacements of the intervertebral disc in relation to the base plate, independently of the possible displacements of the base plate in relation to the intervertebral disc. To achieve said displacements, the intervertebral disc is mounted on the base plate by means of the fixing elements located in the interior of the implant, in such a way that translational and/or rotational displacements can take place. In addition, the bearing surface between the top plate and the intervertebral disc is spherical, thus maximising the contact surface.
88 Citations
34 Claims
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1-14. -14. (canceled)
- 15. Intervertebral disk implant, comprising a base plate, a cover plate and an intervertebral disk, wherein the intervertebral disk is seated on the base plate in such a way that translational and rotational movements are possible and said cover plate is seated on the intervertebral disk in such a way that the articulating surface of the intervertebral disk as well as the articulating surface of the cover plate are each located on a respective spherical partial surface with the same radii.
Specification