Switched safety protection circuit for an AIMD system during exposure to high power electromagnetic fields
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United States of America Patent
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May 21, 2013
Grant Date -
Aug 19, 2010
app pub date -
Mar 25, 2010
filing date -
Dec 17, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch disposed between the diversion circuit and the AIMD electronics for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.
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