Medical instruments, namely, balloon catheters, bone tamps, drills, tools used for creating and filling voids, mechanical cavity creators, tools used for filling bones, inflation syringes, needles, cannulae and trocars; surgical instruments for use in spinal surgery; surgical instruments, namely, trocars, spacers, cages, cannulas, inserters, mechanical levers, curettes, dilators, retractors, separators, artificial surgical spinal implants, spinal implant systems, namely, artificial inter-vertebral body implants, spinal implant positioners, and expanders; artificial inter-vertebral body implants, namely, inter-vertebral body prostheses, inter-vertebral disc prostheses, expandable frames, scaffolding, expandable tubular frames, cages, and spacers; spinal implant devices, namely, stabilizing cords, screws, pedicle screws, plates, and expanders; spinal implant tools and positioners, namely, surgical grippers and measuring gauges; spinal implant placement and positioning devices, namely, trocars, cannulas, and inserters; measuring gauges for placement of spinal implants; extension limiting devices, namely, spacers and inter-spinous implants consisting of artificial material; spinal fusion devices, namely, rods, screws, expandable screws, plates, fusion cages, and cervical plates; dynamic spinal stabilization devices, namely, artificial discs and inter-spinous implants consisting of artificial material; inter-spinous process devices, namely, spacers, inter-spinous implants consisting of artificial material; and spinal deformity corrective devices, namely, rods, screws, plates, fusion cages, spacers, inter-spinous implants consisting of artificial material, artificial discs, artificial vertebral bodies, surgical mesh, and inter-vertebral disc prostheses