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US 2011/0301596 A1Published application
Irrigated catheter and method, in particular for ablation and like techniques
AssigneesUniversity Medical Center Utrecht, University of Oklahoma
InventorsFrederik Henricus Wittkampf, Hiroshi Nakagawa
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Abstract
The invention relates to a catheter, provided with an elongated body with an electrically conductive first end, wherein through said body at least one live wire extends which is connected to said first end and a channel for feeding a cooling fluid through said body, which channel is provided, in or near said first end, with at least one outlet opening and wherein, in said first end, a temperature sensor has been arranged, while said channel is thermally insulated from said first end.
Claims20
A catheter comprising:
- an elongate body having a longitudinal axis;
- an electrode coupled to a distal end portion of the elongate body;
- a conductive wire extending through said elongate body and electrically coupled to said electrode;
- an irrigation channel or an irrigation tube extending through said elongate body and having a distal end;
- at least one outlet opening extending radially from the longitudinal axis, and fluidly coupled to, the distal end of the irrigation channel or the irrigation tube;
- and
- means for providing thermal separation such that a fluid flowing through the channel during use substantially does not come into thermal contact with the electrode surface before flowing out of the at least one outlet opening.
4 more elements
A catheter comprising:
- an elongate body having a longitudinal axis;
- an electrode coupled at a distal end portion of the elongate body;
- a conductive wire extending through said elongate body and electrically coupled to said electrode;
- an irrigation channel or an irrigation duct extending through said elongate body;
- and
- at least one outlet opening, having a first end and a second end, extending radially from a distal end of the irrigation channel or the irrigation duct having a first end and a second end;
- wherein said first end is fluidly coupled to a distal end of the irrigation channel or the irrigation duct;
- wherein said second end comprises means for creating a somewhat turbulent flow at a distal end of the electrode;
- wherein the at least one outlet opening includes a thermally insulating material coupled to a portion of an interior casing disposed therein.
6 more elements
A catheter comprising:
- an elongate body having a longitudinal axis;
- an electrode coupled to a distal end portion of the elongate body;
- a conductive wire extending through said elongate body and electrically coupled to said electrode;
- an irrigation channel or an irrigation tube extending through said elongate body and having a distal end;
- and
- at least one outlet opening extending radially from the longitudinal axis, and fluidly coupled to, the distal end of the irrigation channel or the irrigation tube;
- wherein said at least one outlet opening terminates adjacent said electrode and comprises means for directing a fluid substantially along the outside surface of the electrode.
4 more elements
Dependencies are inferred from the claim text.