Patent ID: 8690876
Filing Date: 2014-04-08
Classification: A61B,Y10T

Abstract:
1. A cutting burr having a shank with an engagement end at a proximal end of the shank adapted to be received by a surgical drill, comprising: a first diamond-shaped portion formed at the proximal end of the shank and having first side edges, the first diamond-shaped portion having a first pair of facets that meet at a first apex and an opposing second pair of facets; and a second diamond-shaped portion axially spaced along a shaft of the shank from the first diamond-shaped portion and having second side edges, the second diamond-shaped portion having a third pair of facets that meet at a second apex and an opposing fourth pair of facets, wherein the first diamond-shaped portion and the second diamond-shaped portion are different sizes, wherein the first diamond-shaped portion is adapted to be inserted into a complementary shaped mating recess of the surgical drill, and wherein the second diamond-shaped portion is adapted to mate with a complementary locking pawl of the surgical drill.