| abstract |
A system for accessing and ablating abnormal tissue in a human esophagus, comprising an expandable member capable of being inserted into a human esophagus proximate a site of abnormal tissue, expandable member having a radio frequency energy transmitting region, a power source for generating radio frequency energy coupled to the radio frequency transmitting region, and a mechanism for expanding the expandable member into contact with abnormal tissue so as to apply radio frequency energy to the abnormal tissue for ablation of the tissue. Preferably, the expandable member comprises an expandable balloon. |