10 surgical apparatus and instruments, namely, retractors, distractors, reamers, curettes, impactor shafts, sliding mallets, graft tampers, extraction blockers, cage holders, scalpels, knives, cannulaes, catheters, surgical compressors, posterior curettes, for surgical purposes; implants, namely surgical implants composed of artificial material; orthopedic articles, namely implants for surgery of the spinal column, namely, intervebral cages, cervical cages, disc prostheses