Patent ID: 9668759
Date: 2017-06-06
CPC Classifications: A61B

Claim:
1. A drill guide system for positioning and aligning a pilot hole drilled by a drill in a bone comprising: a drill guide, a locking fastener having a head including external threads, and a plate having at least one fastener recess including a circular recess portion which defines a longitudinal axis for a locking fastener and has internal threads that are capable of receiving the external threads on the head of the locking fastener, the drill guide having a drill guide body with a first end and a second end and a cannula therethrough, the second end of the drill guide body having a drill guide tip including a cylindrical central aligning tip which has at least two contiguous radial projections that extend along the central aligning tip in the direction of the longitudinal axis, and the fastener recess including at least two respective female aligning recesses which are contiguous with the circular recess portion and that reside within the internal threaded recess whereby the internal threads are interrupted by the female aligning recesses, and which form a mating interface between the drill guide tip and the fastener recess of the plate that defines a key fit in the fastener recess with the at least two radial projections of the drill guide tip so as to define an angle of the cannula of the drill guide and an angle of the pilot hole so as to define the angle of the locking fastener in use so that the locking fastener is locked at a specified angle relative to the plate by the mating of the internal threads in the at least one fastener recess in the plate with the external threads on the head of the locking fastener.