medical and surgical devices, namely, high frequency electromagnetic therapy apparatus and radio frequency therapy apparatus for use on human and animal tissues and organs, and replacement parts therefor; medical and surgical laparoscopes and catheters; medical and surgical aspirators; medical and surgical knives and cutters for cutting human or animal tissue and organs; medical and surgical implantable stents and shunts and parts and fittings therefor, namely, medical sensors for measuring medical parameters including temperatures, pressures, fluid flow rates, biological and chemical conditions and marker substances inside humans, animals, tissue and organs, and antennae therefor for communicating with remote medical devices outside the human or animal body, and medical devices for communicating with and controlling implantable medical stents, shunts and sensors; medical devices for heating up stents; medical and surgical component parts, namely, fittings for laparoscopes, catheters and introducers