Patent ID: 7815679
Filing Date: 2010-10-19
Classification: A61F

Abstract:
1. A prosthetic assembly for use between a pair of adjacent vertebrae, comprising: a first base component having a first side adapted for engaging the first of the adjacent vertebrae, and an opposing second side comprising a concave portion; a second base component having a first side adapted for engaging the second of the adjacent vertebrae, and an opposing second side; the first sides of each of the base components comprising a plurality of sharpened teeth and a raised portion comprising a pair of concentric raised circular portions stacked, one atop the other, each of the raised portions having angled sidewalls that taper inwardly in the direction towards the base component to cooperate with bone in-growth, as the vertebra-engaging adaptation; and a middle component having a first side with a convex portion thereon adapted to engage the concave portion of the first base component, and an opposing second side; wherein the second base component and the middle component each comprises a slot having edges extending linearly from an anterior edge to a posterior edge of each respective component such that the second side of the second base component slideably receives the second side of the middle component and the middle component includes at least one raised wing surface that tapers downwardly toward at least one outside edge of the middle component.