Impedance Measurement Tissue Identification in Blood Vessels
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United States of America Patent
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Issued Date -
Jun 23, 2011
app pub date -
Dec 20, 2010
filing date -
Dec 21, 2009
priority date (Note) -
Abandoned
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Abstract
A system for radio frequency (RF) wire guidance during RF occlusion canalization including a RF wire configured to travel through a blood vessel, an impedance measure unit configured to measure an electrical impedance between the RF wire and a reference electrode, a RF power source, an activation controller configured to connect the RF power source to the RF wire when the impedance measure unit indicates that the RF wire is contacting an occlusion material, a RF wire steering system; and a controller configured to activate the steering system to maintain the RF wire within the occlusion material based on impedance measured by the impedance measure unit.
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