Air cushions for medical purposes; Belts for medical purposes; Biodegradable bone fixation implants; Bone implants composed of artificial materials; Bone substitutes for surgical use; Contraceptive apparatus; Dental implants; Feeding bottles; Implant bridges for dental purposes; Medical apparatus and instruments for use in bone surgey procedures; Orthopedic bandages; Orthopedic device to stretch and exercise the toes and feet; Orthopedic devices for diagnostic and therapeutic use; Radiotherapy apparatus; Sanitary masks for medical purposes; Spinal implants composed of artificial material; Substitutes for cartilage; Surgical implants comprised of artificial materials; Surgical implants comprising artificial material; Surgical implants comprising artificial material and associated surgical instrument sets; Suture materials; X-ray appliances for dental and medical use; Surgical and medical apparatus and instruments for use in bone surgery