Bone screw and method of manufacturing same

摘要

The screw has a screw shank with a front tip (104) e.g. centring tip, a cutting region (106), an intermediate region (108) and a rear head region. A trapezoidal thread (322) extends in a threaded region of the screw shank over a transition region and includes mutually adjoining parts of the cutting region and the intermediate region. An outside diameter and a root diameter of the screw shank defined by the thread. The root diameter in the cutting region is greater than the root diameter in the intermediate region and the outside diameter is constant in the transition region. An independent claim is also included for a method for manufacturing a self-tapping bone screw.