Balloon catheter system and methods of use thereof

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/10 (2006.01) A61B 17/22 (2006.01) A61B 17/3207 (2006.01) A61B 18/24 (2006.01)

Patent

CA 2728845

A catheter including an outer conduit and an inner conduit movably disposed therein. The distal tip of the inner conduit extends beyond the distal tip of the outer conduit. An inflatable balloon has a first margin attached to the distal tip of the outer conduit, and a second margin attached to the portion of the inner conduit extending beyond the distal tip of the outer conduit. The balloon includes a middle portion, an inflatable distal side portion having at least one tapering part and an inflatable proximal side portion having at least one tapering portion. The length of proximal side portion is equal to or larger than the length of the middle portion. The distal end portion of the balloon is capable of intussuscepting upon proximal movement of the inner conduit within the outer conduit. The catheter includes an inflation/deflation port for introducing and removal of inflating fluid.

Linvention concerne un cathéter comprenant un conduit externe et un conduit interne disposé mobile à lintérieur du conduit externe. La pointe distale du conduit interne sétend au-delà de la pointe distale du conduit externe. Un ballonnet gonflable comporte un premier bord fixé sur la pointe distale du conduit externe et un deuxième bord fixé sur la partie du conduit interne sétendant au-delà de la pointe distale du conduit externe. Le ballonnet comprend une partie intermédiaire, une partie latérale distale gonflable comportant au moins une partie conique et une partie latérale proximale gonflable comportant au moins une partie conique. La longueur de la partie latérale proximale est égale ou supérieure à la longueur de la partie intermédiaire. La partie extrémité distale du ballonnet peut réaliser une intussusception par un mouvement proximal du conduit interne à lintérieur du conduit externe. Le cathéter selon linvention comporte un orifice de gonflage/dégonflage permettant lintroduction et le retrait dun fluide de gonflage.

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