10 SURGICAL INSTRUMENTS, NAMELY, PROBES, REAMERS, PATIENT POSTIONERS, INSTRUMENT POSTIONERS, BROACHES, OSTEOTOMES, SURGICAL SAWS, CLAMPS AND ATTACHMENT DEVICES, NAMELY SCREWS, HANDLES AND COUPLERS; OPTICAL DEVICES, NAMELY, COMPUTER MONITORS, HEAD-MOUNTED DISPLAYS AND SEMI-TRANSPARENT DISPLAY DEVICES, ALL FOR USE IN COMPUTER-ASSISTED SURGERY; IMAGING DEVICES, NAMELY, CT SCANNERS, FLUOROSCOPY DEVICES, MAGNETIC RESONANCE IMAGING DEVICES, ULTRASOUND DEVICES AND RADIOGRAPHIC DEVICES ALL FOR USE IN COMPUTER-ASSISTED SURGERY; AND TRACKING DEVICES, NAMELY, INFRARED TRACKING DEVICES, INERTIAL TRACKING DEVICES AND MAGNETIC TRACKING DEVICES ALL FOR USE IN COMPUTER-ASSISTED SURGERY