Patent ID: 8002775

Claim:
A cannulated drill, comprising an elongated member formed of a biocompatible material and having a proximal end, a distal end, an inner cylindrical surface, and an outer surface, said inner cylindrical surface defining a cylindrical lumen having an inner diameter, said cylindrical lumen extending along the length of said elongated member and sized to receive an elongated obturator, said elongated member having a distal cutting portion including a plurality of bone cutting edges extending about and along said distal cutting portion, said cylindrical lumen extending through said distal cutting portion and defining a distal opening at a distal end surface of said distal cutting portion, said elongated member having a connector adjacent said proximal end configured for matingly engaging a distal end portion of a syringe, and further comprising an elongated obturator, said obturator having an outer cylindrical surface defining an outer diameter conforming to said inner diameter of said cylindrical lumen to permit said obturator to be slidably disposed in said cylindrical lumen and wherein a distal-most end of said obturator is positioned at said distal opening to inhibit material from entering said distal opening and into said cylindrical lumen; and wherein said obturator defines a longitudinal passage that extends from a proximal end of said obturator to said distal end of said obturator; and further comprising an elongate guide member positioned within said longitudinal passage in said obturator to guide the drill as the drill is axially advanced along said elongate guide member, and a cannula defining an axial lumen extending therethrough from a proximal end to a distal end; and wherein said elongated member is positioned within said axial lumen with said distal cutting portion positioned beyond said distal end of said cannula.