Patent ID: 7717959
Filing Date: 2010-05-18
Classification: A61F

Abstract:
1. An intervertebral implant system comprising: a first anchor plate comprising a bone-engaging surface configured to face toward and be secured to a first vertebral body adjacent to an intervertebral space; a second anchor plate configured to be secured to a second vertebral body adjacent to the intervertebral space, wherein the second anchor plate is formed separately from the first anchor plate; and a first intermediate component rigidly attachable to the first anchor plate independently of any conical pres-fitted interface, the first intermediate component comprising a concave body having a concave recess shaped to articulate with a convex surface to permit postoperative relative motion between the first and second anchor plates; and a coupling device actuatable between an attached position, in which the coupling device is positioned to block removal of the concave body from the first anchor plate, and a detached position, in which the coupling device is positioned to avoid blocking removal of the concave body from the first anchor plate, without requiring detachment of the first anchor plate from the first vertebral body and without requiring access to the bone-engaging surface.