Medical apparatus and instruments for use in surgery; bone prostheses; orthopaedic implants made of metal and engineering plastics; medical, surgical, and orthopaedic implants made of artificial materials; spinal implants composed of artificial materials; biodegradable bone fixation implants, namely, bone fixation plates; bone fixation implants, namely, bone fixation plates made of metal for feet; bone fixation implants, namely, bone fixation plates made of metal for knees.