Methods for treatment of a body cavity or lumen

摘要

Methods and apparatus for the treatment of a body cavity or lumen are described where a heated fluid and/or gas may be introduced through a catheter and into treatment area within the body contained between one or more inflatable/expandable members. The catheter may also have optional pressure sensing elements which may allow for control of the pressure within the treatment zone and also prevent the pressure from exceeding a pressure of the inflatable/expandable members to thereby contain the treatment area between these inflatable/expandable members. Optionally, a chilled or room temperature fluid such as water may then be used to rapidly terminate the treatment session.

主权项

1. A method for treating a body cavity or lumen, comprising:
positioning a tissue region of interest between a distal occlusion member and a proximal occlusion member which are adjustably movable relative to one another via adjustment of a catheter; occluding the tissue region to be treated between the occlusion members such that a treatment area is defined therebetween; introducing a hyperthermic or hypothermic fluid and/or gas into the treatment area such that the tissue region is treated by thermal ablation with the hyperthermic or hypothermic fluid and/or gas contacting the tissue region; monitoring a first pressure of the hyperthermic or hypothermic fluid and/or was introduced into the treatment area; comparing the first pressure against a second pressure within the occlusion members; and adjusting the first pressure to be below the second pressure if the first pressure exceeds the second pressure.