Patent ID: 7048764

Claim:
An artificial disc replacement (ADR) situated between immediately adjacent upper and lower vertebral bodies to facilitate multidimensional spinal movement, comprising: a spacer component having a spherical convex articulating surface and a spherical concave articulating surface; and a first endplate component adapted for fixation to an endplate of a vertebral body facing into an intervertebral disc space, the first endplate component including a spherical concave articulating surface having a first radius or curvature that congruently cooperates with the spherical convex articulating surface of the spacer component; and a second endplate component adapted for fixation to an endplate of an opposing vertebral body facing into the same intervertebral disc space, the second endplate component including a spherical convex articulating surface having a second radius of curvature that congruently cooperates with the spherical concave articulating surface of the spacer component.