Patent ID: 9452007
Filing Date: 2016-09-27
CPC Classification: A61B

Claim Text:
1. A cannulated screw comprising: a head; a body coupled to the head, the body and the head having an exterior thread, the exterior thread extending along a length of the head; wherein: the head and the body have a combined length corresponding to a length of the screw; an axial bore is formed to define an interior wall of the head and of the body along a longitudinal axis of the screw, the axial bore extending the entire length of the screw; a majority of the body along its length has a substantially cylindrical profile; the head is shaped to receive and engage a drive tip of a driver insertable therein, the head having a core diameter that transitions smoothly and continuously from a core diameter of the body; and a recess projects, from the axial bore, along a radial projection axis into the interior wall of the head, the recess having an inner surface, formed in the interior wall, the surface completely surrounding the projection axis upon entry into the recess, the recess shaped to removably receive an exposable end of an engagement pin that is movable in a radially outward direction from the drive tip so as to project into the head and retain the screw on the drive tip.