Abstract: A bone stabilizing system including an improved guide pin consisting of an elongate solid shaft having one or more drilling teeth and self-tapping threads at a first end and a cross-section partially defined by a non-circular circumference. The system also includes a fixation device which comprises a metal cannula defined by a hollow cylindrical shaft having a drilling teeth at one end, an operating tool receiving means at the other end and a plurality of threads therebetween. The drilling teeth each having cutting surfaces positioned obliquely with first and second directions in a diametric plane extending axially through the cannula. The receiving portion is configured to accept an operating tool to rotatingly advance or withdraw the cannula within the fractured bone. The threads are configured with a non-circular circumference while a portion of the threads are tapered.

Abstract: A self-tapping, self-drilling orthopedic fixation screw includes a cannula through the shaft of the screw for placement over a guide pin mounted in a guide hole in a bone to drill and tap a hole at predetermined location in the bone.

Abstract: An intramedullar rod is formed as a hollow cylinder with slits therein that form a plurality of leaf spring members that bend inward when the rod is inserted into the medullary cavity of the bone.

Abstract: A self-cleaning surgical fixation pin having fluted grooves forming self-cleaning knife edges and twin lead helical threads.