STIMULATION LEAD, STIMULATION SYSTEM, AND METHOD FOR LIMITING MRI INDUCED CURRENT IN A STIMULATION LEAD
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United States of America Patent
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Issued Date -
Mar 8, 2012
app pub date -
Jun 5, 2009
filing date -
Jun 5, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In one embodiment, a percutaneous stimulation lead for electrically stimulating tissue of a patient, comprises: a plurality of electrodes being electrically coupled to a plurality of terminals through a plurality of conductors within a lead body of the lead, wherein each electrode comprises a respective first surface exposed on an exterior surface of the stimulation lead to conduct current to or from tissue of the patient and a respective second surface disposed within an interior of the stimulation lead, the plurality of electrodes are arranged such that adjacent pairs of electrodes are capacitively coupled through a first surface of a first electrode of the respective pair and a respective second surface of a second electrode of the respective pair to substantially block current flow between adjacent electrodes at stimulation frequencies and to substantially pass current between adjacent electrodes at MRI frequencies.
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