Methods for treating the cardia of the stomach
First Claim
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1. A method of accessing and ablating abnormal tissue in a human esophagus, comprising the steps of:
- (i) inserting an expandable member into a human esophagus wherein the expandable member is connectable to a power source for generating radio frequency energy, (ii) positioning the expandable member proximate a portion of the human esophagus having tissue to be ablated;
(iii) expanding and positioning the expandable member so as to apply radio frequency energy to a site of abnormal tissue for ablation of the tissue; and
(iv) providing ablation energy to a portion of the expandable member to effect tissue ablation.
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Abstract
Methods treat a tissue region. In one arrangement, the methods deploy an electrode on a support structure in a tissue region at or near the cardia of the stomach. In one embodiment, the support structure has a proximal region and a distal region. The proximal region is enlarged in comparison to the distal region, and the electrode is carried by the enlarged proximal surface. The methods advance the electrode in a path to penetrate the tissue region and couple the electrode to a source of radio frequency energy to ohmically heat tissue and create a lesion in the tissue region.
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Citations
7 Claims
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1. A method of accessing and ablating abnormal tissue in a human esophagus, comprising the steps of:
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(i) inserting an expandable member into a human esophagus wherein the expandable member is connectable to a power source for generating radio frequency energy, (ii) positioning the expandable member proximate a portion of the human esophagus having tissue to be ablated;
(iii) expanding and positioning the expandable member so as to apply radio frequency energy to a site of abnormal tissue for ablation of the tissue; and
(iv) providing ablation energy to a portion of the expandable member to effect tissue ablation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification