SYSTEM AND METHOD FOR TREATING ABNORMAL EPITHELIUM IN AN ESOPHAGUS

摘要

Various embodiments of the invention provide a system for treating abnormal mucosa in an esophagus comprising an elongated member; an energy delivery structure deployable from the elongated member and adapted to engage a circumferential section of a mucosal lining of the esophagus to deliver energy to the section; and means for delivering energy through the delivery structure under conditions selected to initiate regrowth of a mucosal layer without substantial injury to a sub-mucosal layer underlying the mucosal layer. By injuring or necrosing metaplastic or other abnormal mucosal cells, regrowth of the mucosa substantially free from abnormal cells can be initiated. In an embodiment, the energy delivery structure can include an RF electrode array positioned on a surface of the structure and configured to be coupled to an RF power supply.