Irrigated ablation catheter system with pulsatile flow to prevent thrombus
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United States of America Patent
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Feb 9, 2021
Grant Date -
Sep 28, 2017
app pub date -
Apr 17, 2017
filing date -
Dec 28, 2006
priority date (Note) -
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Abstract
The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow saline flow out of an inner cavity of the electrode. This fluid flow is pulsatile to increase turbulence, reducing areas of stagnant flow, and produces a desired cooling effect.
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