A HUMAN NECESSITIES
A61 MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61B DIAGNOSIS; SURGERY; IDENTIFICATION
A61B17/00 Surgical instruments, devices or methods
A61B17/56 Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
A61B17/58 for osteosynthesis, e.g. bone plates, screws or setting implements
A61B17/68 Internal fixation devices; , including fasteners and spinal fixators, even if a part thereof projects from the skin
A61B17/72 Intramedullary devices, e.g. pins or nails
A61B17/7233 with special means of locking the nail to the bone
A61B17/725 with locking pins or screws of special form