Surgical, medical, dental and veterinary apparatus and instruments, artificial limbs and eyes; orthopedic articles; surgical suture material; prostheses, endoprostheses; prostheses for revisions, especially spherical stems and heads; artificial surgical implants, particularly implants for joints and implants covered with coating materials, instruments and tools for implanting prostheses and parts thereof as well as for operative treatment of fractures, models for orthopedic use, fixing devices for bones, stabilizing plates for bones, bone screws and bone pins, expansion screws for bones, files and burrs for working on and treating (shaping) bones, guide instruments for bone drills and saws, depression instruments for medical or orthopedic purposes and marking templates, as well as medullary space barriers