Patent ID: 8192344
Filing Date: 2012-06-05
Classification: A61N

Abstract:
1. A method for treating tissue surrounding a body cavity of a patient, comprising: a) providing a device having a shaft with a distal portion, a treatment location at the distal portion of the shaft and a plurality of treatment lumens having a fixed configuration, the plurality of treatment lumens extending into the treatment location and configured to receive a radiation source; b) inserting the device into the patient until the treatment location is deployed within the body cavity; c) positioning the plurality of treatment lumens having the fixed configuration within the body cavity so that a first lumen of the plurality of treatment lumens is closer to a first portion of tissue surrounding the body cavity than a second portion of tissue surrounding the body cavity; d) expanding an expandable member that surrounds the plurality of treatment lumens; and e) irradiating tissue surrounding the body cavity by positioning a radiation source in the first lumen of the plurality of treatment lumens within the treatment location to asymmetrically irradiate tissue at the body cavity.