Methods and devices for ablation
First Claim
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1. A method of ablating cardiac tissue, comprising the steps of:
- providing an ablating device having at least one ablating element, the ablating device being coupled to a guide member;
positioning the ablating device on an epicardial surface;
positioning the guide member at a fixed position relative to the target tissue on the epicardial surface;
ablating tissue with the ablating element with the device positioned on the epicardial surface to form a first lesion;
moving the ablating element to a new position, the moving step being carried out with the ablating device being moved relative to the guide member, the moving step being carried out a number of times with the guide member being at the fixed position on the epicardial surface; and
ablating tissue to form a second lesion at the new position which is continuous with the first lesion.
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Abstract
An ablating device has a cover which holds an interface material such as a gel. The cover contains the interface material during initial placement of the device. The ablating device may also have a removable tip or a membrane filled with fluid. In still another aspect, the ablating device may be submerged in liquid during operation.
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Citations
11 Claims
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1. A method of ablating cardiac tissue, comprising the steps of:
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providing an ablating device having at least one ablating element, the ablating device being coupled to a guide member;
positioning the ablating device on an epicardial surface;
positioning the guide member at a fixed position relative to the target tissue on the epicardial surface;
ablating tissue with the ablating element with the device positioned on the epicardial surface to form a first lesion;
moving the ablating element to a new position, the moving step being carried out with the ablating device being moved relative to the guide member, the moving step being carried out a number of times with the guide member being at the fixed position on the epicardial surface; and
ablating tissue to form a second lesion at the new position which is continuous with the first lesion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification