Patent ID: 8012149

Claim:
An apparatus for treating a tissue inside a distendable body lumen comprising: a sizing cathether for determining the size of the body lumen; a treatment catheter for ablation and having an expansion member, an electrode array on the expansion member, a pneumatic connector in communication with the interior of the expansion member and an electrical connection connected to the electrode array wherein the treatment catheter is selected based on the body lumen dimension determined by the sizing catheter; a generator having an RF energy source and a generator electrical connector to attach to the electrical connection, a pump and a generator pneumatic connector to attach to the pneumatic connector wherein, when the sizing catheter is connected to the generator electrical connector and the generator pneumatic connector, the generator is configured to inflate the sizing catheter to distend the body lumen and to determine a dimension of the distended body lumen and thereafter, when a treatment catheter is connected to the generator pneumatic connector and the generator electrical connector, the generator is configured to inflate the expansion member and provide sufficient energy to the electrode array to sear the lining of the distended lumen.