An axial intramedullary screw having a straight cylindrical outer surface for the operative treatment of long bones, the screw having two tips and a screw thread extending between the tips. At each of the tips there is a connection portion for screwdriver. The screw thread is used for cutting into the...http://www.google.co.uk/patents/US6517541?utm_source=gb-gplus-sharePatent US6517541 - Axial intramedullary screw for the osteosynthesis of long bones
