Surgical and medical apparatus and instruments for use in general surgery; orthopedic articles, namely, implants made of artificial materials; artificial implants, prostheses, fixing devices for spinal columns, namely, spinal implants made from artificial substances; intervertebral frames; cervical frames; facet prostheses for vertebrae; intervertebral disk prostheses; prostheses for the vertebral column; posterior fixing devices for the vertebral column, namely, monoaxial screws, polyaxial s...