M5

SURGICAL APPARATUS FOR GUIDING SURGICAL PEDICLE PROBES, AWLS, TAPS, SCREWS, AND OTHER SURGICAL INSTRUMENTS; ELECTRONIC SPINAL CORD AND NERVE SURVEILLANCE AND DETECTION SYSTEMS COMPRISING CANNULAE, OBTURATORS, PEDICLE PROBES, AWLS, TAPS, ELECTRODES, SENSORS, STIMULATORS, DISPLAY SCREENS, CABLING, AND COMPUTER HARDWARE AND DEDICATED COMPUTER SOFTWARE FOR OPERATION THEREOF