Medical and surgical instruments, namely, balloon catheters, bone tamps, drills, tools used for creating and filling voids, mechanical cavity creators, tools used for filling bones and inflation syringes; surgical access devices, namely, needles, cannulae and trocars; and medical and surgical instrument kits containing some or all of the following instruments, namely, balloon catheters, drills, tools used for filling voids, tools used for filling bones, inflation syringes, needles, cannulae and trocars; medical instruments for use in spinal surgery, namely, trocars, spacers, cannulas, inserters, mechanical levers, curettes, dilators, retractors, and 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, 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; drug delivery systems; anesthetic delivery apparatus; apparatus for clinical diagnosis; medical and surgical instrument kits, containing some or all of the following instruments, namely, drug delivery systems, anesthetic delivery apparatus, apparatus for clinical diagnosis, catheters, needles, cannulae, balloon catheters, guidewires, syringes, stylets, conduits for delivery of anesthetics, aspirators, aspirator nozzles, catheter stopcocks and catheter connector adapters