IMPROVED SPINAL SURGICAL PROSTHESIS

摘要

This invention is a prosthesis in the form of a cage having opposed complimentary bearing surface assemblies (2) (3). The bearing surface assemblies are moveable towards, and away from each other. The moving mechanism (4) (5) is part of the bearing surface assemblies. Each of the bearing surface assemblies have an outer bearing surface whereby movement of one bearing surface assembly in one direction will move the bearing surface assemblies away from each other, and movement in the direction will move the bearing surface assemblies towards each other.