10 Surgical and medical instruments and apparatus for use in orthopaedic surgery; orthopaedic prostheses for knees, legs, feet, hands, arms, elbows, shoulders, spines, and hips; medical measuring devices, namely, medical imaging apparatus for surgical planning, and computer assisted surgical instruments for measurement purposes; surgical navigation devices, namely, surgical instruments in the nature of patient specific guides for use in orthopaedic surgery, and computer assisted surgical instruments; sensors being measurement apparatus for medical use, namely, pressure sensors, load sensors, distraction sensors, and biofeedback sensors; precision sensors for medical use, namely, pressure sensors, load sensors, distraction sensors, and biofeedback sensors; medical apparatus for the measurement and placement of prostheses; sensor apparatus for medical use in monitoring patients; wearable sensors for medical purposes to monitor patients; medical x-ray, imaging and video apparatus, including for intraoperative use