Stereotactic surgery apparatus and method

Details Stereotactic surgery apparatus and method Stereotactic surgery apparatus and method

A - Human Necessities

61

B

128/111

A61B 5/00 (2006.01) A61B 6/00 (2006.01) A61B 19/00 (2006.01)

Patent

CA 1148433

P.C. 6157 STEREOTACTIC SURGERY APPARATUS AND METHOD Abstract A stereotactic surgery frame with x-ray detectable fiducial markers (100, 102, 104) is presented. The frame is fixed with respect to a patient's anatomy and defines a predetermined three-dimensional coordinate system (X, Y, Z) in which surgical devices may be precisely positioned. A desired target area of the anatomy is detected in a cross-sectional CT scanner depiction of the combined stereotactic frame and patient anatomy. The target's X, Y, Z coordinates with respect to the frame are calculated based on three non-collinear fiducial points (F1, F2, F3) located within the cross-section and having known coordinates both with respect to the frame and with respect to the target. Thus, the surgical device can be precisely applied in the target area.

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