Patent ID: 7763022
Filing Date: 2010-07-27
Classification: A61B

Abstract:
1. An interlocking nail for fractures of a proximal femur comprising: a proximal portion, the proximal portion having a longitudinal axis and an outer surface extending parallel to the longitudinal axis; a circular bore through the outer surface extending at an angle less than 90 degrees to the longitudinal axis of the proximal portion; and the outer surface having recessed edge surface portions located on opposed sides of the bore, the recessed edge surface portions being flattened and rounded at a screw or pin inlet end, the flattened recessed edge surface portions being flattened along a plane perpendicular to a plane containing both the longitudinal axis of the nail and a central axis of the bore and parallel to the longitudinal axis of the nail proximal portion, and the recessed rounded edge surface portions being rounded on proximal and distal sides on the pin or screw inlet end around an axis transverse to the longitudinal axis and lying in a plane parallel to the plane of the flattened edge surface portions, the flattened recessed edge portions being intermediate the recessed proximal and distal rounded edge surface portions and forming a concave rounded edge open on first and second sides thereof.