Ablation catheters and associated systems and methods
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United States of America Patent
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Jan 31, 2017
Grant Date -
May 29, 2014
app pub date -
Nov 26, 2013
filing date -
Apr 5, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An ablation catheter assembly including an elongate catheter body having a proximal portion, a distal portion and a lumen therethrough. A helical structure associated with the catheter distal portion carries a plurality of independently operable electrodes and is transformable between a low-profile configuration wherein a straightening element is positioned in the lumen and an expanded configuration wherein the straightening element is at least partially retracted from the spiral structure. When the helical structure is in the expanded configuration, a laterally offset tip portion extends distally therefrom.
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