Patent ID: 8029568
Filing Date: 2011-10-04
Classification: A61F,Y10S

Abstract:
1. An intervertebral spacer device comprising: a first plate having an inner surface and an exterior surface, the inner surface of the first plate including a post member extending substantially perpendicular therefrom, the post member including a ball-shaped head having a outer curved convex surface, the post member having a central threaded axial bore; a second plate having an inner surface and an exterior surface, the inner surface of the first and second plates facing one another; a wire mesh secured over one of the exterior surfaces of the first and second plates, wherein the mesh has a perimeter that is anchored to the exterior surface and a center, wherein only the center of the mesh is deflectable relative to the exterior surface of the one of the first and second plates; and a slotted domed arch strip spring having a top side with a partially circular convex surface, an underside with a partially circular concave surface, and a plurality of slots extending through the top side and underside of the spring, the spring further having a central opening including a concave volume, the spring having first and second lateral ends each having an aperture therethrough, the apertures adapted to receive a fastening member for fixing the lateral ends of the spring to the inner surface of the second plate, wherein the ball-shaped head of the post member is received within the central opening of the spring and is locked within the concave volume thereof when a fastening member is received and held within the central threaded axial bore of the post member.