10 Surgical implants, namely, plates consisting of bars or bolts to provide controlled motion to the spine, screws, rings, shells, and spacers, all made from a variety of materials, namely, artificial bone, steel, stainless steel, cobalt chrome, titanium, titanium alloys, polymer plastics, and hydrogel synthetics; bone cement and wax; surgical equipment and tools, namely, scalpels, blades, staplers, clamps, wrenches, screwdrivers, screw taps, drills, hammers, pliers, bone chisels, reamers, trephines, cutters, scrapers, retractors, distractors, cannulae, sizers, chisels, osteotomes, curettes, pituitaries, dissectors, tamps, inserts, positioners, impactors, rongeurs, implant holders, implant inserters, and surgical retractor systems consisting of connector set screws, tightening wrench, stability pin driver and ratchet adaptor, all made from a variety of materials, namely, wood, steel, steel alloys, stainless steel, titanium, titanium alloys, plastic, and rubber.