Method and apparatus for forming a hole in bone during a surgical procedure

摘要

A method and tool for forming a hole in a bone. The method includes bringing a bone cutting tool extending along a longitudinal axis into engagement with a cortical portion of the bone. A distal portion of the bone cutting tool is passed into the cortical portion of the bone up to a first predetermined depth to form a first bore. The bone cutting tool is then driven in the axial direction to a second predetermined depth to form a keyway portion in the first bore with a cutting tooth of the bone cutting tool. The bone cutting tool is then rotated about the longitudinal axis to form a second bore in a cancellous portion of the bone. The first bore and the second bore have a shoulder extending therebetween. The bone cutting tool is removed from the hole formed by the first and second bores in the bone.

主权项

1. A method for forming a hole in a bone, the method comprising:
bringing a bone cutting tool that extends along a longitudinal axis into engagement with a cortical portion of the bone, the bone cutting tool having a cutting tooth spaced a distance away from a distal-most end of the cutting tool; passing a distal portion of the bone cutting tool into the cortical portion of the bone up to a first predetermined depth to form a first bore; driving without rotating the bone cutting tool in an axial direction to a second predetermined depth to form an elongated keyway slot extending radially from and along a longitudinal portion of the first bore with the cutting tooth of the bone cutting tool; rotating the bone cutting tool about the longitudinal axis to form a second bore deeper than the first bore in a cancellous portion of the bone, the first bore and the second bore having a shoulder extending therebetween; and removing the bone cutting tool from the hole formed by the first and second bores in the bone.