Lead electrode for use in an MRI-safe implantable medical device
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United States of America Patent
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Feb 6, 2007
Issued Date -
N/A
app pub date -
Nov 3, 2004
filing date -
Mar 30, 2004
priority date (Note) -
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Abstract
A pulse stimulation system configured for implantation into a patient's body comprises a pulse stimulator, a conductive stimulation lead having a proximal end electrically coupled to the pulse simulator and having a distal end, and an electrode assembly coupled to the distal end of the stimulation lead. The electrode assembly comprises an electrode body having a therapy electrode thereon that is electrically coupled to the stimulation lead for delivering therapy to the patient. A floating electrode is configured to contact the patient's body tissue and has a surface area substantially larger than that of the therapy electrode. A filter is coupled between the therapy electrode and the floating electrode for diverting RF energy toward the floating electrode and away from the therapy electrode.
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