Patent ID: 8165658

Claim:
A system for positioning a guide relative to an anatomy comprising: a base adapted to be moved relative to the anatomy and thereafter immoveably coupled to the anatomy; a guide moveably coupled to the base, wherein the guide is configured to move relative to the base at least when the base is immoveably coupled to the anatomy; a first tracking device coupled to the base and a second tracking device coupled to the guide; a tracking system that tracks a position of the first tracking device and the second tracking device relative to the anatomy; a navigation system configured to independently determine a position of both the base and the guide relative to the anatomy based on the position of the first tracking device and the second tracking device and determine if the determined position of the base and the determined position of the guide are about equal to a desired position of the base and a desired position of the guide; and a display configured to display the desired position of the base and the guide superimposed on an image of the anatomy, a first directional icon superimposed on the image of the anatomy that graphically indicates a desired manipulation of the base required to move the base into the desired position of the base relative to the anatomy and a second directional icon superimposed on the image of the anatomy that graphically indicates a desired manipulation of the guide required to move the guide into the desired position of the guide relative to the anatomy.