Variable stiffness balloon catheter

Details Variable stiffness balloon catheter Variable stiffness balloon catheter

A - Human Necessities

61

M

A61M 25/10 (2006.01) A61M 25/00 (2006.01) A61M 29/02 (2006.01)

Patent

CA 2127806

This invention is a single-lumen balloon catheter and assembly having a variable stiffness shaft that allows for greater guidewire trackability and proximal pushability than previous designs. The catheter has an elongate tubular body that is made of inner and outer coaxial tubes, the inner tube being made of proximal and distal sections, the proximal section being stiffer than the distal section and the distal section being stiffer than the outer tube.

L'invention concerne un ensemble cathéter (12) à ballonnet à lumière unique doté d'une tige de rigidité variable permettant une meilleure souplesse d'exploration du fil-guide (13) et une meilleure maniabilité que dans les modèles existants. Ledit cathéter (12) présente un corps tubulaire allongé constitué de tubes coaxiaux externe (18) et interne (19, 20), le tube interne (18) présentant des sections proximales et distales, la section proximale (19) étant plus rigide que la section distale (20), laquelle est elle-même plus rigide que le tube externe (18).

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