Medical devices and instruments for use in the surgical treatment of the spine; medical devices and instruments, namely, medical drills, medical drill bits, bone taps, dilators, sheaths, dilator sheaths, catheters, nucleus replacement material injectors, augmentation media injectors, cannulae, stylets, stylet handles, guidewires, guidewire introducers, guide pin introducers, guide pins, guide pin handles, guide pin extensions, synthetic spinal implants, surgical instruments for use in the augmentation of bone and tissue, nucleus pulposus tissue extractors, surgical instruments for use in the dynamic stabilization of tissue, distraction devices, bone cutters, tissue cutters, tissue curettes, surgical instruments for use in the extraction of bone and tissue, spinal anchors, medical screws, medical plugs, surgical tools for the removal and revision of implants, dynamic stabilization and motion implants, spinal stabilization devices, motion segment reconstruction devices, inserter cannulae; medical coatings, templates and substrates for use in the repair or replacement of tissue, namely, synthetic nucleus pulposus; synthetic tissue void filler; synthetic tissue substitutes; synthetic nucleus pulposus replacement material; hydrogels and elastomers for medical use; membranes for medical use; exchange systems, consisting of cannulae, bushings, drill wires; medical kits comprising one or more of the foregoing