Method and apparatus for marking a lumenal wall

A - Human Necessities – 61 – F

Patent

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Details

A61F 5/00 (2006.01) A61B 18/14 (2006.01) A61B 17/30 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2722683

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.

L'invention concerne un appareil de marquage (10) comprenant un ballonnet gonflable sélectivement (12). Le ballonnet comprend un passage extérieur (30) adapté pour être relié à une source de vide. Le passage extérieur comprend des orifices (36, 38) pour créer un vide au niveau des orifices suffisant pour tirer des parois de la cavité gastrique jusqu'au contact avec le passage extérieur. Le ballon est de plus muni de dispositifs de fourniture d'énergie haute fréquence (HF) (42). Conformément à un mode de réalisation en variante, un appareil de marquage (110) comprend un corps creux allongé (116), le corps creux comprenant une extrémité proximale (118) et une extrémité distale (112). Le corps creux comprend au moins une goulotte d'aspiration (132, 134) dans laquelle une pluralité de trous (136) sont disposés pour exercer une aspiration sur le tissu. La au moins une goulotte d'aspiration s'étend le long d'une partie importante du corps creux lorsqu'il s'étend depuis son extrémité distale jusqu'à son extrémité proximale.

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