A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/06 (2006.01) A61B 6/12 (2006.01) A61B 17/88 (2006.01) A61B 19/00 (2006.01)
Patent
CA 2161430
This is a system for determining a position of a probe (302) relative to as object such as a head of a body of a patient. The head includes a surface such as a forehead having a contour. Cross-sectional images of the head are scanned and stored as a function of the forehead contour. If the forehead contour does not appear in the scan images, then the position of the forehead contour relative to the scan images is determined with an optical scanner (380) and ring (590). During surgery, the optical scanner (380) also determines the position of the tip of the forehead relative to the ring (590). An easy (300) for receiving radiation emitted from the probe and from the ring generates signals indicating the position of the tip (301) of the probe (302) relative to the ring (590). A stereo-tactic imaging system (324) generates and displays an image of the head corresponding to the measured position of the tip (301) of the probe (302).
Smart & Biggar
St. Louis University
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