Flexible coil pulsed electromagnetic field (PEMF) stimulation therapy system
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
Mar 2, 1998
filing date -
Nov 1, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A PEMF therapy system uses a single-coil PEMF transducer for generating PEMF stimulation signals. The coil has a 'bi-phasic' operation, such that current flows through it in two directions A drive circuit recovers the flyback energy from the transducer coil and dumps voltage to an energy recovery capacitance circuit. The transducer is thereby energized and de-energized to provide the electromagnetic field. The single coil transducer may be fabricated on a flexible substrate and the wiring may be formed with printed circuit techniques. The same concepts may be applied to series-connected coils.
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