Patent ID: 9526540
Filing Date: 2016-12-27
CPC Classification: A61B

Claim Text:
1. A drill assembly for drilling a hole through a bone comprising: an intramedullary rod comprising an elongate body defining a channel therewithin and including at least one screw hole extending from said lumen to an outer surface of said elongate body; said screw hole having chamfered side walls; a drill guide tube structured to receive a drill cable, said drill guide tube comprising a proximal end, a distal end, a length extending between the proximal and distal ends, an outer surface having a fixed shape extending along the length of the guide tube between the promixal and distal ends, and a protrusion extending from the outer surface, said drill guide tube structured to be introduced into said intramedullary rod channel, said protrusion being integrally formed with said drill guide tube and having chamfered side walls that join a base whose length is greater than the length of a tip thereof, said protrusion chamfered side walls configured to engagingly mate with said chamfered side walls of said at least one screw hole to locate said screw hole and maintain the position of said drill cable relative to said screw hole.