1
Joseph P Errico, Thomas J Errico, James D Ralph: Anterior spinal polyaxial locking screw plate assembly having recessed retaining rings. March 2, 1999: US05876402 (466 worldwide citation)

The present invention is a polyaxial locking screw plate assembly for immobilization of vertebral bones, via fixation to surfaces thereof. The assembly includes a plate, having an upper portion and a lower portion, each of which has a pair of tapered holes, into which holes coupling elements and bon ...


2
Joseph P Errico, Thomas J Errico, James Ralph: Anterior spinal polyaxial locking screw plate assembly. J P Errico, May 28, 1996: US05520690 (384 worldwide citation)

The present invention is a polyaxial locking screw plate assembly for immobilization of vertebral bones, via fixation to surfaces thereof. In one embodiment the invention includes a plate, having an upper portion and a lower portion, each of which has a pair of threaded holes, into which holes coupl ...