Inter-vertebral disc prosthesis for rachis through anterior surgery thereof
AssigneeOrthoPlex, LLC
InventorLionel C. Sevrain
Life of this patent
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Abstract
A disc prosthesis for use on a pair of adjacent vertebrae comprises upper and lower plates adapted to be mounted respectively to adjacent upper and lower vertebrae, typically using screws that extend through holes defined in the upper and lower plates and into the upper and lower vertebrae; a joint mechanism linking the upper and lower plates; and a damping system. The joint mechanism and the damping system are adapted to allow for biased relative movements between the upper and lower vertebrae.
Claims15
A disc prosthesis for use on a pair of adjacent vertebrae, wherein the pair of adjacent vertebrae includes an upper vertebra and a lower vertebra, said disc prosthesis comprising:
- upper and lower plates adapted to be mounted respectively to adjacent upper and lower vertebrae;
- a linking joint linking said upper and lower plates, said linking joint comprising an anterior guillotine-type joint having engaged upper and lower members adapted for sliding relative movements therebetween;
- and
- a damping mechanism adapted to act on said linking joint, said linking joint and said damping mechanism being adapted to allow for limited biased relative movements between the upper and lower vertebrae.
A disc prosthesis for use on a pair of adjacent vertebrae, wherein the pair of adjacent vertebrae includes an upper vertebra and a lower vertebra, said disc prosthesis comprising:
- upper and lower plates adapted to be mounted respectively to adjacent upper and lower vertebrae;
- a linking joint for linking said upper and lower plates, wherein said linking joint provides a stop for preventing a complete withdrawal of said upper and lower plates from each other, and said linking joint comprising an anterior guillotine-type joint having engaged upper and lower members adapted for sliding relative movements therebetween;
- and
- a damping mechanism adapted to act on said linking joint, said linking joint and said damping mechanism being adapted to allow for limited biased relative movements between the upper and lower vertebrae.
Dependencies are inferred from the claim text.