Catheter having electrode with annular recess and method of using same
First Claim
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1. An electrode catheter comprising:
- a catheter body;
a conductive dumbbell-shaped electrode at the distal end of the catheter body having a proximal end and a distal end separated by a smooth arcuate shaped annular recess; and
means for electrically connecting the electrode to a source of current, whereby the annular recess is shaped such that it can smoothly engage a heart valve annulus.
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Abstract
A cardiovascular electrode catheter for use in arrhythmia ablation procedures has a dumbbell-shaped large-tip electrode having an annular recess or indentation. The annular recess divides the electrode into a ball-shaped distal portion and a generally cylindrical proximal portion. Both the distal and proximal portions of the electrode have a diameter substantially the same as that of the catheter body. The recess enables the electrode to grip the mitral or tricuspid annulus or the atrial or ventricular myocardial wall to improve ablation procedures.
291 Citations
6 Claims
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1. An electrode catheter comprising:
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a catheter body; a conductive dumbbell-shaped electrode at the distal end of the catheter body having a proximal end and a distal end separated by a smooth arcuate shaped annular recess; and means for electrically connecting the electrode to a source of current, whereby the annular recess is shaped such that it can smoothly engage a heart valve annulus. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification