Patent ID: 8808383

Claim:
An intervertebral disc prosthesis designed for implantation between an upper vertebral body and a lower vertebral body, the intervertebral disc prosthesis comprising: a first prosthesis component including: a first endplate having a first outer vertebra facing surface and an opposing first inner surface, the first inner surface defining a first elastic member cavity, a second endplate having a second outer vertebra facing surface and an opposing second inner surface, a first elastic member received in the first elastic member cavity and definining a first bearing member cavity arranged facing the second endplate, the first bearing member cavity being located at least partially within the first elastic member cavity, a first bearing member received in the first bearing member cavity and having a concave first bearing surface arranged facing the second endplate, and a second bearing member secured to the second inner surface and having a second bearing surface arranged facing the first endplate, the second bearing surface being positioned in contact with the first bearing surface; a second prosthesis component spaced apart laterally from the first prosthesis component and including: a third endplate having a third outer vertebra facing surface and an opposing third inner surface, the third inner surface defining a second elastic member cavity, a fourth endplate having a fourth outer vertebra facing surface and an opposing fourth inner surface, a second elastic member received in the second elastic member cavity and defining a second bearing member cavity arranged facing the third endplate, the second bearing member cavity being located at least partially within the second elastic member cavity, a third bearing member received in the second bearing member cavity and having a concave third bearing surface arranged facing the fourth endplate, and a fourth bearing member secured to fourth inner surface and having a fourth bearing surface arranged facing the third endplate, the fourth bearing surface being positioned in contact with the third bearing surface; and a connection member extending between and connecting the first prosthesis and the second prosthesis.