Guide-in-guide catheter system

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/00 (2006.01) A61L 29/00 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2465907

A multiple catheter system is described. In one embodiment a medical catheter system includes a first catheter having an entrance orifice, an exit orifice, a channel connecting the entrance orifice and the exit orifice, and a wall surrounding the channel. In this embodiment the hardness of the wall surrounding the channel decreases in hardness then increasing in hardness and then decreasing in hardness again when considered from an initial reference point at the entrance orifice and traveling towards the exit orifice. Another medical catheter system includes a first catheter having an entrance orifice, an exit orifice, a channel linking the entrance orifice and the exit orifice, and a first wall surrounding the channel wherein the first wall has a bendable curve memory portion.

L'invention concerne un système comportant des cathéters multiples. Dans un mode de réalisation, un système de cathéter médical comprend un premier cathéter comportant un orifice d'entrée, un orifice de sortie, un canal reliant l'orifice d'entrée et l'orifice de sortie, et une paroi entourant le canal. Dans ce mode de réalisation, la rigidité de la paroi entourant le canal diminue, puis augmente, puis diminue à nouveau, lorsqu'on la considère à partir d'un point de référence initial situé au niveau de l'orifice d'entrée et que l'on évolue vers l'orifice de sortie. Un autre système de cathéter médical comprend un premier cathéter comportant un orifice d'entrée, un orifice de sortie, un canal reliant l'orifice d'entrée et l'orifice de sortie, et une première paroi entourant le canal, ladite première paroi possédant une partie à mémoire de courbe cintrable.

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