Non-invasive sensing of a physical parameter
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United States of America Patent
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Sep 18, 2001
Grant Date -
N/A
app pub date -
Feb 16, 2000
filing date -
May 21, 1997
priority date (Note) -
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Abstract
There is disclosed a method and device for non-invasively sensing a physical parameter within the body of a patient by employing a magnetically-based sensing device and monitoring device. The magnetically-based sensing device has a first magnet and a second magnet which generate a combined magnet field. The first and second magnets are positioned such that a change in a physical parameter causes a change in the combined magnet field, which change is monitored by the monitoring device.
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