A novel disposable axial external fixation device for reducing bone fractures, of the type comprising an extendible rod-like middle body and oppositely located bone screw clamps which are articulated to the respective ends of the rod like middle body by means of ball joints. Advantageously, a ball-and-socket...http://www.google.fr/patents/US7147639?utm_source=gb-gplus-shareBrevet US7147639 - Disposable external fixation device