Cleaning device and methods

1. A method of treating tissue requiring treatment in an alimentary tract, the method comprising:

positioning a therapy system within the alimentary tract, the therapy system comprising an instrument including an ablation device positioned at a distal end and a cleaning device supported positioned adjacent to and proximal the ablation device;

moving the ablation device to a treatment site in the alimentary tract;

ablating tissue at the treatment site;

moving the cleaning device to the treatment site while the ablation device remains in proximity of the treatment site; and

contacting and cleaning tissue treated by the ablation device by moving the cleaning device relative to the treatment site for removing treated tissue to prepare the treatment site for a follow on treatment by the ablation device.

2. The method of claim 1 wherein the cleaning comprises abrading a tissue surface at the treatment site.

3. The method of claim 1 wherein the moving comprises rotating the instrument.

4. The method of claim 3 wherein the moving comprises moving the instrument in a longitudinal direction.

5. The method of claim 1 further comprising, after the cleaning, determining whether an additional treatment is needed at the treatment site.

6. The method of claim 5 further comprising, after the determining, ablating the tissue at the treatment site.

7. The method of claim 1 further comprising contacting the treatment site with the cleaning device to produce hemostasis of bleeding requiring treatment.

8. The method of claim 7 wherein the cleaning device comprises a member selected from thrombin, fibrin, collagen, and combinations of the same.

9. The method of claim 1 wherein the positioning comprises advancing the instrument through the mouth and into the esophagus.