Shaft for ablation catheter with balloon

Details Shaft for ablation catheter with balloon Shaft for ablation catheter with balloon

A - Human Necessities

61

M

A61M 25/00 (2006.01) A61B 18/12 (2006.01)

Patent

CA 2757219

The stirring efficiency of a heating liquid which is supplied to the balloon of a balloon-equipped ablation catheter is increased to quickly uniformize the surface temperature of the balloon, and air is prevented from remaining in the balloon- equipped ablation catheter to enhance the safety of treatment which uses the balloon-equipped ablation catheter. A shaft for a balloon-equipped ablation catheter, consisting of a single pipe, wherein the shaft has two lumens which communicate from the distal end to the proximal end of the shaft, a first lumen being a guide wire passage lumen which is provided in order to allow a guide wire to pass therethrough, the second lumen being a liquid supply lumen which is provided in order to supply liquid to the inside of the balloon of the balloon-equipped ablation catheter.

Selon l'invention, on augmente l'efficacité d'agitation d'un liquide de chauffage délivré au ballonnet d'un cathéter d'ablation équipé d'un ballonnet afin d'uniformiser rapidement la température de surface du ballonnet, et on empêche que de l'air reste dans le cathéter d'ablation équipé d'un ballonnet afin d'améliorer la sécurité du traitement utilisant le cathéter d'ablation équipé d'un ballonnet. L'arbre pour cathéter d'ablation équipé d'un ballonnet, constitué d'un tuyau unique, possède deux lumières communiquant de l'extrémité distale à l'extrémité proximale de l'arbre, la première lumière étant une lumière de passage de fil de guidage disposée afin de permettre à un fil de guidage de passer à travers celle-ci, la seconde lumière étant une lumière d'alimentation en liquide qui est destinée à alimenter en liquide l'intérieur du ballonnet du cathéter d'ablation équipé d'un ballonnet.

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