Surgical instrument for conditioning large diameter burr holes

A precision cutting tool for creating a large diameter burr hole in a patient, comprising:

• a proximal end opposite a distal end, with a body extending from between the proximal end and the distal end;
• a cutting structure, the cutting structure including:
• a plurality of helical flutes extending along at least a portion of the body of the precision cutting too
• a plurality of radial cutting edges extending outwardly in a radial direction, each of the plurality of radial cutting edges connected to one of the plurality of helical flutes;
• a plurality of nose cutting blades extending outwardly in a distal direction at the distal end of the precision cutting tool, each of the plurality of nose cutting blades connected to one of the plurality of helical flutes;
• wherein the plurality of radial cutting edges and the plurality of nose cutting blades are configured to remove an amount of material from a bone of the patient to create an implantation hole.

A method of conditioning a large diameter burr hole in a patient, the method comprising:

• conditioning an initial hole in the patient to create an implantation hole, wherein conditioning includes rotating a precision cutting tool within the initial hole, the precision cutting tool including:
• a proximal end opposite a distal end, with a body extending from between the proximal end and the distal end;
• a cutting structure, the cutting structure including:
• a plurality of helical flutes extending along at least portion of the body;
• a plurality of radial cutting edges extending outwardly in a radial direction, each of the plurality of radial cutting edges connected to one of the plurality of helical flutes;
• a plurality of nose cutting edges extending outwardly in a distal direction at the distal end of the precision cutting tool, each of the plurality of nose cutting edges connected to one of the plurality of helical flutes;
• wherein the plurality of radial cutting edges and the plurality of nose cutting edges are configured to remove an amount of material from a bone of the patient to create the implantation hole.