Methods and apparatuses for reshaping the esophagus and other body lumens

摘要

Described are methods and systems for treating a patient to modify a body passage of the patient. The methods may involve removing tissue from a luminal surface of a body passage such as the esophagus or stomach, for the purpose of inducing a healing response that will result in a reshaping of the body passage.

主权项

1. A medical device, comprising:
an endoscopic ligator barrel having a distal end; a plurality of ligation bands received upon the ligator barrel; a single pull line operably associated with the plurality of ligation bands, the single pull line extending distally through the ligator barrel and exiting the barrel from the distal end to bend over the distal end of the barrel and extend proximally towards the plurality of ligation bands, wherein a portion of the single pull line is situated outside the ligator barrel, and wherein the single pull line extends only once over the distal end of the barrel and is operable to deploy the plurality of ligation bands from the ligator barrel; and a guide member projecting from a surface of the ligator barrel proximal to the distal end, wherein the guide member surrounds the single pull line, and wherein the single pull line passes through the ligator barrel and the guide member before engaging the plurality of ligation bands; wherein the ligator barrel includes a first side that is generally opposite a second side, the first side extending distally of the second side in a generally longitudinal direction along the ligator barrel; and wherein the single pull line exits the barrel at or substantially at the first side of the barrel and is retained at or substantially at the first side by the guide member as the plurality of ligation bands are deployed from the ligator barrel by the single pull line.