Patent ID: 7713304
Filing Date: 2010-05-11
Classification: A61B,A61F

Abstract:
1. An intervertebral prosthetic disc comprising: a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having an extension with a concave contact surface, the concave contact surface being spaced apart from the second surface; a second endplate having a first surface configured to substantially engage with a second vertebral body and a second surface comprising a convex contact surface, and the second endplate having first and second side rails positioned along and above the second surface extending the length of the second endplate and defining a first and second window on opposing sides of the second surface; wherein said concave contact surface of the extension substantially contacts the convex contact surface of the second endplate; wherein the side rails are curved to match the curvature of the convex surface thereby creating the first and second windows having an upper border that is defined by the curved rails and a lower border that is defined by the convex surface of the lower endplate; wherein said prosthetic disc is configured for implantation into the intervertebral space by a transforaminal approach.