METHOD AND APPARATUS FOR MARKING A LUMENAL WALL

摘要

A marking apparatus (10) includes a selectively inflatable balloon (12). The balloon includes an external lumen (30) adapted for connection to vacuum source. The external lumen includes ports (36, 38) for creating a vacuum at the ports sufficient to draw walls of the gastric cavity into contact with the external lumen. The balloon is further provided with RF energy delivery- devices (42). In accordance with an alternate embodiment, a marking apparatus (110) includes an elongated, hollow body (116), the hollow body including a proximal end (118) and a distal end (112). The hollow body includes at least one suction trough (132, 134) in which a plurality of holes (136) is disposed to draw suction on tissue. The at least one suction trough extends along a substantial portion of the hollow body as it extends from its distal end to its proximal end.