Patent ID: 7914534

Claim:
A tool for preparing a surface of a vertebral body, said tool comprising: a body having a proximal grip portion and a distal probe portion terminating at a tip, a lever extending through the body and mounted for pivoting with respect to the body, said lever having an actuating portion near the grip portion and a distal portion supporting a first rotary head near the probe tip, whereby the distance between the probe tip and the rotary head can be controlled by squeezing the actuating portion of the lever toward the grip portion of the body, means for turning the rotary head, and a cutting tool mounted on the rotary head, the cutting tool being flexible so that it can conform to the shape of said surface, wherein the distal portion of the lever has a centering pin facing away from the rotary head, to engage a vertebral surface and steady the tool, a second rotary head positioned on the probe below said first rotary head, to allow for simultaneous preparation of upper and lower end plates, said first and second rotary heads being independently driven so that the distance between the heads can be varied while operating.