10 Surgical instruments, namely, probes, reamers, patient positioners, instrument positioners, 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, fuluoroscopy 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