A screw-clamp assembly is useful for connecting a pair of spine rods in a spinal fixation system. The screw-clamp assembly includes an upper half-clamp, a lower half-clamp, an anchor screw, and a nut for clamping the half-clamps together. The upper and lower half-clamps mate to define a pair of openings...http://www.google.com.au/patents/US20030045874?utm_source=gb-gplus-sharePatent US20030045874 - Transverse connector assembly for spine fixation system
