10 medical and surgical apparatus and instruments; namely, fixators for fracture of bones, lengtheners, compressors, compactors and reduction device for bones, periarticular modules, intramedullary nails, bone screw and nails, clamps, metaphysis clamps, bone screw holders, templates for bone prosthesis, fracture reducers, orthopedic braces, sliders, spacers, surgical perforating drills, bone thickness meters, guides for perforating drills and nails, self-locking handles for bone-fracture fixators and reduction device