Osteosynthesis auxiliary (10) for the treatment of subtrochanteric, peritrochanteric and femoral-neck fractures, with a locking nail (12) that can be introduced from the proximal end into the medullary space of a femur (11) and that comprises a distal section (15) having at least one oblong cross...http://www.google.ca/patents/US5713902?utm_source=gb-gplus-sharePatent US5713902 - Osteosynthesis auxiliary for the treatment of subtrochanteric peritrochanteric and femoral-neck fractures 
