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Ablation systems and methods using heat shunt networks

  • US 10,499,983 B2
  • Filed: 10/27/2016
  • Issued: 12/10/2019
  • Est. Priority Date: 11/19/2014
  • Status: Active Grant
First Claim
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1. An ablation device comprising:

  • an elongate body comprising a distal end;

    an electrode positioned at the distal end of the elongate body, the electrode defining an outer surface and an inner surface;

    a plurality of thermal shunt members in thermal communication with the electrode to selectively remove heat from at least one of the electrode and tissue being treated by the electrode when the electrode is activated;

    a first one of the plurality of thermal shunt members extends at least partially through an interior of the electrode to dissipate and remove heat from the electrode during use;

    a second one of the plurality of thermal shunt members being disposed proximal to the electrode and a third one of the plurality of thermal shunt members being disposed distal to the electrode, an outer surface of the third one of the plurality of thermal shunt members being substantially flush with the outer surface of the electrode, the second one and the third one of the plurality of thermal shunt members being differently sized;

    at least one fluid conduit extending at least partially through an interior of the elongate body and at least partially through an interior of the first one of the plurality of thermal shunt members, the first one of the plurality of thermal shunt members is in thermal communication with the at least one fluid conduit, the at least one fluid conduit being configured to place the electrode in fluid communication with a fluid source to selectively remove heat from the electrode or tissue.

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