Drainage catheter

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/04 (2006.01)

Patent

CA 2492550

A drainage catheter (10) is adapted to drain fluid from the body cavity through a body conduit and includes an elongate tube (24) and a retention member (26) disposed at the distal end (41) of the elongate tube. (24) The retention member (26) is adapted for movement between a low-profile state facilitating insertion of the catheter (10) and a high-profile state facilitating retention of the catheter (10) in its operative position. A woven mesh forms at least a portion of one of the tube (24) and the retention member. (26) The woven mesh can be formed of filaments heat-settable so that the catheter (10) automatically moves to the high-profile state. Insertion of the catheter (10) can be facilitated using a stylet (50) which can be removed after insertion to permit the catheter (10) to automatically return to its high-profile state.

La présente invention concerne un cathéter de drainage conçu pour drainer un liquide provenant d'une cavité corporelle à travers une conduite du corps. Ce cathéter comprend un tube allongé et un élément de maintien qui est placé à l'extrémité distale du tube allongé. Ledit élément de maintien est conçu pour se déplacer entre un état de profil bas, qui facilite l'insertion du cathéter, et un état de profil haut, qui facilite le maintien du cathéter dans sa position fonctionnelle. Au moins une partie du tube ou de l'élément de maintien est constituée d'un filet tissé qui peut être composé de filaments thermodurcissables, de façon que le cathéter se déplace automatiquement à l'état de profil haut. L'utilisation d'un stylet permet de faciliter l'insertion du cathéter. Ce stylet peut être retiré après insertion, afin de permettre au cathéter de revenir automatiquement à son état de profil haut.

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