Surgical location monitoring system and method

摘要

A position monitoring system comprises a single composite fiducial reference comprised of a fiducial key and a fiducial extension rigidly and removably attached to the fiducial key, a tracker for obtaining image information of the surgical site, and a computer system with processor, memory, a software program, and access to a database. The computer has scan data of an area of a surgical patient with the fiducial reference fixed to the area by a multipodal surgical screw fixture. A uniquely identifiable first marker is attached to the fiducial key in a predetermined fixed relative position and orientation. The computer determines the relative position and orientation of the marker based on live image information from the tracker, relates and displays the current position and orientation of the composite fiducial reference to the scan data during a surgical procedure. Further implements at the surgical site may bear further markers that may be tracked. The marker may also serve as fiducial extension, to which end it may be uniquely shaped or marked.

主权项

1. A position monitoring system for a surgical procedure comprising:
a single fiducial reference comprising a fiducial key and a fiducial extension rigidly and removably attached to the fiducial key, the fiducial key adapted to be fixed to an area of surgical patient; a first marker attached to the fiducial key in a predetermined fixed relative position and orientation; a non-stereo optical tracker able to determine the position and orientation of the first marker; a computer system having scan data of the patient with the fiducial reference fixed to the area of surgical patient, the computer system coupled to the tracker and including a processor with memory and a software program having a series of instructions which when executed by the processor determines the relative position and orientation of the first marker based on image information from the tracker, and relates the current position and orientation of the fiducial reference to the scan data; and a display system in communication with the computer system, the display system adapted to show the current position and orientation of the fiducial reference relative to the patient scan data during the surgical procedure.