Optical position sensors
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United States of America Patent
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-
Apr 24, 2001
Grant Date -
N/A
app pub date -
Jan 15, 1999
filing date -
Jan 21, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
An elongate medical probe, having proximal and distal ends, whose position is tracked within the body of a subject includes a magnetic-field responsive optical element adjacent to the distal end, which modulates light passing therethrough responsive to an externally-applied magnetic field. The probe also includes a fiberoptic coupled to receive modulated light from the optical element and convey it to the proximal end of the probe for analysis of the modulation.
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