Cervical intervertebral prosthesis
View Patent ↗A cervical intervertebral prosthesis includes at least one cover plate that is configured to be connected to one of its two adjacent vertebral bodies and a securing plate which secures this cover plate and is configured to be fastened to the ventral surface of the vertebral body. The securing plate may be a separate part that is unconnected to the cover plate and can be biodegradable.
1. A cervical intervertebral prosthesis, comprising two cover plates configured to be connected to adjacent vertebral bodies, a securing plate separate from the cover plates which secures only one of the cover plates and is configured to be fastened to a ventral surface of one of the vertebral bodies and a prosthesis core which forms an articular joint with one of the cover plates,
wherein at least one of the cover plates is provided with a limit stop surface facing in a dorsal direction relative to the vertebral bodies configured to lie against its associated adjacent vertebral body and formed by a rear side of a transverse flange on a ventral edge of the at least one of the cover plates relative to an implanted position.
2. The cervical intervertebral prosthesis according to claim 1 , wherein the securing plate is biodegradable.
3. The cervical intervertebral prosthesis according to claim 2 , wherein the securing plate is a circular disk.
4. The cervical intervertebral prosthesis according to claim 3 , wherein the securing plate is a circular disk.