Infusion catheter with inflatable membrane

Details Infusion catheter with inflatable membrane Infusion catheter with inflatable membrane

A - Human Necessities

61

M

A61M 25/10 (2006.01) A61L 29/00 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2198766

This is a perfusion catheter having an inflatable membrane or balloon located at the distal end of the catheter shaft. The shaft is comprised of an outer tubing assembly and an inner tubing assembly separated by an open annulus for inflating and deflating the inflatable membrane. The outer tubing assembly is made up of at least one polymeric layer and a super-elastic braid. The inner tubing assembly is made up of one or more layers of polymeric tubing, the innermost of which is preferably a very lubricious polymer. The outer tubing assembly allows the profile of the catheter to be minimized and yet provides significant kink-resistance to the inner tubing assembly.

Il s'agit d'un cathéter à perfusion doté d'une membrane ou d'un ballonnet gonflable situé à l'extrémité distale de la tige. La tige du cathéter est composée d'un tube extérieur et d'un tube intérieur séparés par un anneau ouvert permettant de gonfler et de dégonfler la membrane gonflable. Le tube extérieur est composé d'au moins une couche de polymère et d'un guipage superélastique. Le tube intérieur est composé d'une ou de plusieurs couches de tube polymérique, le tube le plus intérieur étant fait, de préférence, d'un polymère offrant une résistance minimale. Le tube extérieur permet de réduire au minimum le profil du cathéter tout en assurant au tube intérieur une bonne résistance au tortillement.

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