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 and acetabular cups for artificial joints; surgical implants (artificial), in particular implants for joints and implants covered with coating materials, spinal column implants and bone plates for the cervical vertebrae, instruments and tools for implanting the aforesaid protheses and parts of protheses as well as for operatory treatment of fractures, models for orthopaedic use, fixing devices for bones, stabilizing plates for bones, bone screws, pedicle 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