Patent ID: 8460293
Filing Date: 2013-06-11
Classification: A61B

Abstract:
1. An intramedullary nail to be inserted into a fractured elongated bone and comprising: a cannulated rod extending between a proximal end and a distal end; an outside tubular sleeve for hosting said rod, the rod being coaxial with the sleeve and axially guided inside the tubular sleeve; shape memory elements hosted in corresponding seats of said rod; each element being able to assume a configuration in which it is retractably housed in its respective seat, so to allow the insertion of the nail in the bone, and another configuration in which said element projects from an opening slot of said sleeve; wherein: a distal pair of said elements is provided at the rod distal end; first and second pairs of transversal holes are provided in the proximal portion of said rod and first and second pairs of corresponding transversal holes are provided in the proximal portion of said sleeve, said pairs of holes having respective axes laying on a same plane, said first and second pairs of holes being suitable for housing a respective bone screw; the shape memory elements of the distal pair lie on an offset plane with respect to the plane of said proximal holes and are kept in their corresponding seats by a distal cover, wherein said distal cover is mounted and fixed to the rod in such a manner to keep in position the distal pair of shape memory elements.