Bifurcation catheter assembly with dynamic side branch lumen

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/84 (2006.01)

Patent

CA 2727676

A catheter assembly including a main catheter branch (12), a side catheter branch arrangement (14), and a stent (16). The main catheter branch includes at least a main balloon (26) and a side balloon (28). The side catheter branch arrangement includes a branch guidewire housing (40) and a sleeve member (42). At least a portion of the side catheter branch arrangement ex-tends through a proximal open end of the stent and out through a side branch aperture of the stent. The branch guidewire housing defines a side branch lumen configured to advance over a branch vessel guidewire.. The sleeve member is sized to receive the branch guidewire housing, wherein the branch guidewire housing is axially movable within the sleeve member. The sleeve mem-ber is typically fixed axially relative to the main catheter branch.

La présente invention concerne un ensemble cathéter comprenant une branche principale de cathéter (12), un aménagement de branche latérale de cathéter (14) et un stent (16). La branche principale de cathéter comprend au moins un ballonnet principal (26) et un ballonnet latéral (28). L'aménagement de branche latérale de cathéter comprend un logement pour le fil-guide de ladite branche (40) et un élément de type manchon (42). Au moins une partie de l'aménagement de la branche latérale de cathéter se prolonge à travers une extrémité proximale ouverte du stent et ressort à travers une ouverture de la branche latérale du stent. Le logement pour le fil-guide de la branche latérale délimite une lumière de branche latérale conçue pour faire saillie par-dessus un fil-guide pour vaisseau ramifié. L'élément de type manchon est d'une taille telle à recevoir le logement pour le fil-guide de la branche latérale, celui-ci étant mobile de façon axiale au sein de l'élément de type manchon. L'élément de type manchon est généralement fixé de façon axiale par rapport à la branche principale du cathéter.

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