Catheter with bifurcated, collapsible tip for sensing and ablating
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United States of America Patent
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Aug 8, 2006
Grant Date -
Dec 1, 2005
app pub date -
May 27, 2004
filing date -
May 27, 2004
priority date (Note) -
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Abstract
A sensing and ablation electrode includes bifurcated sensing limbs separated by an ablation web. The electrode is disposed on the distal end of a catheter. The sensing limbs each support an array of sensors that are individually wired for mapping and post ablation efficacy testing. The web includes a pair of pliable membranes that define a lumen and are adapted to collapse the cross-section of the electrode. One membrane defines a plurality of apertures for dispersing a conductive fluid medium as a virtual electrode. The sensors and the apertures all lie within substantially the same plane.
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