Movable magnet transmitter for inducing electrical current in an implanted coil
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United States of America Patent
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Aug 31, 1999
Grant Date -
N/A
app pub date -
Feb 10, 1998
filing date -
Feb 10, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An external power head is energized by a motor causing movement of an element that produces a varying magnetic field, thereby inducing power in an implanted receiver coil within a patient's body. The external power head includes either one or more moving permanent magnets, or one or more moving elements that vary the magnetic flux coupled to the implanted receiver coil. As a result of the varying magnetic field experienced by the implanted receiver coil, an electric current flows from the implanted receiver coil to energize an implanted medical device.
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