Patent ID: 8081810

Claim:
A non-transitory storage medium containing a program readable by a digital computer which instructs the digital computer to recognize a predetermined shape of each of at least one portion of a medical assembly as a real-world fiducial in image data of a patient when the image data includes the predetermined shape and is received as an input by the digital computer, wherein the at-least-one portion has another function apart from functioning as a real-world fiducial, wherein the medical assembly includes a position sensor adapted to provide position data and wherein each of the at-least-one portion is located at a fixed, predetermined position with respect to the position sensor such that the real-world fiducial is fixed in position relative to the position sensor, wherein the medical assembly includes an insertion sleeve insertable into the patient through which a surgical device is inserted into the patient for a medical treatment of the patient and wherein the at-least-one portion is at-least-one portion of the insertion sleeve.