Ablation devices, systems and methods of using a high-resolution electrode assembly
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United States of America Patent
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Dec 20, 2016
Grant Date -
Oct 6, 2016
app pub date -
Jun 10, 2016
filing date -
Nov 19, 2014
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Abstract
According to some embodiments, an ablation device comprises an elongate body (e.g., a catheter) having a proximal end and a distal end, a first electrode (e.g., a radiofrequency electrode) positioned at the distal end of the elongate body, at least a second electrode (e.g., a radiofrequency electrode) positioned at a location proximal to the first electrode, the first electrode and the second electrode being configured to contact tissue of a subject and deliver radiofrequency energy sufficient to at least partially ablate the tissue, at least one electrically insulating gap positioned between the first electrode and the second electrode and a filtering element configured to present a low impedance at a frequency used for delivering ablation energy via the first and second electrodes.
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