Intramedullary nail with shape memory elements

摘要

The invention concerns an intramedullary nail to be inserted into a fractured elongated bone and comprising:
- a cannulated rod (2) extending between a proximal end (3) and a distal end (4);
- an outside tubular sleeve (5) for hosting said rod (2), the rod (2) being coaxial with the sleeve (5) and axially or angularly guided inside the tubular sleeve (5); and
- shape memory elements (7) hosted in corresponding seats (6) of the rod (2); each elements (7) being able to assume a configuration wherein is retractably housed in its respective seats (6), so to allow the insertion of the nail in the bone, and another configuration wherein said elements (7) are projecting from slots opening (8) of said sleeve (5).