Patent ID: 9044339
Filing Date: 2015-06-02
Classification: A61B,A61F

Abstract:
1. An intervertebral disc prosthesis comprising: an upper prosthesis plate; a lower prosthesis plate comprising a peripheral edge and a generally planar lower surface; a lower anatomic adaptation crown comprising a generally planar lower surface configured for contact with a vertebral endplate, an opposite generally planar upper surface, and an interior opening extending from the upper surface of the anatomic adaptation crown to the lower surface of the anatomic adaptation crown and sized to receive the generally planar lower surface of the lower prosthesis plate, with the generally planar upper surface of the lower anatomic adaptation crown disposed generally coplanar with the generally planar lower surface of the lower prosthesis plate to form a uniform surface of the intervertebral disc prosthesis configured for contact with a vertebral endplate; and fixation means for fixing the lower anatomic adaptation crown onto the lower prosthesis plate.