Patent ID: 8480746
Filing Date: 2013-07-09
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 and a middle portion extending from the second surface to an extension having an upper surface and a bottom concave contact surface, the concave contact surface being spaced apart from the second surface of the first endplate; 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 wherein said concave contact surface of the extension substantially contacts the convex contact surface of the second endplate; wherein the concave contact surface of the extension is spaced apart from the second surface of the first endplate; wherein the first and second endplates are constrained to prevent separation of the first and second endplates from each other wherein said prosthetic disc is configured for implantation into the intervertebral space by a transforaminal approach wherein the extension is constrained within a portion of the second endplate.