Controlling effects caused by exposure of an implantable medical device to a disruptive energy field
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United States of America Patent
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Jun 24, 2014
Grant Date -
May 5, 2011
app pub date -
Jun 30, 2010
filing date -
Oct 30, 2009
priority date (Note) -
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Abstract
Techniques are described for controlling effects caused when an implantable medical device (IMD) is subject to a disruptive energy field. The IMD may include an implantable lead that includes one or more electrodes. The IMD may further include a first component having a parasitic inductance. The IMD may further include a second component having a reactance. In some examples, the reactance of the second component may be selected based on the parasitic inductance of the first component such that an amount of energy reflected along the lead in response to energy produced by an electromagnetic energy source is below a selected threshold. In additional examples, the parasitic inductance of the first component and the reactance of the second component are configured such that an amount of energy reflected along the lead in response to a frequency of electromagnetic energy is below a selected threshold.
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