Medical system calibration with static metal compensation
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United States of America Patent
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Oct 5, 2010
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app pub date -
Jul 20, 2000
filing date -
Jul 20, 2000
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Abstract
A method for calibrating a medical system capable of generating a magnetic field for tracking a position of a medical device has various steps such as defining a mapping volume within the generated magnetic field and placing a metallic object within the mapping volume. A sensor is aligned at a first point within the mapping volume and the magnetic field at the first point is measured with the sensor to establish a first coordinate position (Xi, Yi, Zi). An interpolation technique in one embodiment and an extrapolation technique in another embodiment are used in the calibration method.
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