MONITORING SYSTEM HAVING IMPLANTABLE INDUCTIVE SENSOR
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United States of America Patent
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Issued Date -
Mar 27, 2008
app pub date -
Sep 24, 2007
filing date -
Sep 22, 2006
priority date (Note) -
Abandoned
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Abstract
A system for monitoring physical properties of structures within animate and inanimate objects, including internal organs and bones of humans. The system includes sensing and readout devices. The sensing device is adapted to be implanted in a body and attached to a structure within the body, and includes an electrical circuit containing a first inductor coil formed at least in part by a conductor with portions thereof separated by gaps. The first inductor coil is adapted to be physically coupled to the structure so that changes in shape and size of the structure cause changes in shape and/or size of the first inductor coil and/or changes in the gaps, which alter the inductance of the first inductor coil when current flows through the electrical circuit. The readout device is not adapted to be implanted in the patient, and includes an inductor coil capable of electromagnetic telecommunication and/or electromagnetic powering of the sensing device.
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