Beveled screw
A screw includes a screw head having a bevel and an elongate shaft attached to the screw head. The shaft has a central longitudinal axis. A tip is attached to the shaft, distal from the head. A method in implanting the screw into a bone or bone fragment is also disclosed.
1 . A screw comprising:
a screw head having a bevel, wherein the bevel forms a dome shape;
an elongate shaft attached to the screw head, the shaft having a central longitudinal axis and a cannula extending along the longitudinal axis; and
a tip attached to the shaft, distal from the head,
wherein the screw head and the shaft are solid around the cannula, and
wherein the screw is fully threaded.
2 . The screw according to claim 1 , wherein a top end of the thread terminates at the bevel.
3 . The screw according to claim 1 , wherein the thread is continuous around the screw head.
4 . The screw according to claim 1 , wherein the screw head arcs with a constant radius of curvature, forming the dome shape.
5 . The screw according to claim 4 , wherein the radius is between about 5 mm and about 15 mm.
6 . The screw according to claim 1 , wherein the head comprises a trailing end.
7 . The screw according to claim 6 , wherein the trailing end spans an arc of about 15 degrees.
8 . The screw according to claim 1 , wherein the screw head is elliptical in shape.
9 . The screw according to claim 1 , wherein the screw anticipates an insertion angle of 40 degrees.
10 . The screw according to claim 1 , further comprising a plurality of flutes formed along an exterior of the shaft.
11 . The screw according to claim 10 , wherein the flutes extend the length of the shaft.
12 . The screw according to claim 10 , wherein three flutes are evenly spaced 120 degrees apart from each other around the exterior of the shaft.
13 . The screw according to claim 10 , wherein the flutes extend helically around the shaft.