Abstract: An interlocking nail, particularly for fractures of the proximal femur having a proximal portion that has provided therein a bore preferably extending obliquely to the axis of the proximal portion for receiving a screw or pin, particularly a femoral neck pin. The bore is formed so that the lateral edge portions located on opposed sides are flattened and rounded at the inlet end or also the outlet end of the bore.

Abstract: An interlocking nail, particularly for fractures of the proximal femur having a proximal portion that has provided therein a bore preferably extending obliquely to the axis of the proximal portion for receiving a screw or pin, particularly a femoral neck pin. The bore is formed so that the lateral edge portions located on opposed sides are flattened and rounded at the inlet end or also the outlet end of the bore and continuously pass over into adjacent edge portions towards the proximal and distal sides of the inlet end and/or outlet end.

Abstract: A static trauma or fracture fixation device is made from a metal such as steel, cobalt-chrome alloy or titanium alloy. When in use, the implant has at least one portion which is either in contact with bone tissue or with metal. Although such a metal may be considered a static implant, it undergoes dynamic loads which cause micro-motion. In order to reduce wear, corrosion and modify the frictional characteristics of the surface, coatings may be applied. The coating may be a diamond-like carbon coating of the metal, carbon and hydrogen type. This coating may be applied by physical vapor deposition and/or chemical vapor deposition. Other coating processes may include nitrogen or oxygen diffusion processes or carbon diffusion processes. Anodization may also be used as a coating to modify the wear and corrosion resistance of the base metal.