RAPID EXPANSION BALLOON CATHETER

摘要

A balloon catheter assembly including a catheter, a sleeve, and a balloon. The catheter has a body, an exterior surface, a lumen, a port providing fluid communication between the lumen and the exterior surface, and a coupling mechanism to couple the lumen to an inflation source. The sleeve has an interior surface facing the exterior surface, the sleeve being coaxial with the catheter and configured to move longitudinally about the catheter. The balloon is disposed about the catheter and has a middle segment covering the port, a distal segment coupled to the sleeve, and a proximal segment coupled to the catheter. The middle segment has a middle longitudinal stiffness, the distal segment has a distal longitudinal stiffness, and the proximal segment has a proximal longitudinal stiffness. The middle longitudinal stiffness is greater than the proximal longitudinal stiffness and the middle longitudinal stiffness is greater than the distal longitudinal stiffness.

主权项

1. A balloon catheter assembly comprising:
a catheter having a catheter body, an exterior surface, a lumen, a port providing fluid communication between the lumen and the exterior surface, and a mechanism adapted to couple the lumen to an inflation source; a sleeve having an interior surface facing the exterior surface, the sleeve being coaxial with the catheter and configured to move longitudinally about the catheter; and a balloon disposed about the catheter and having a middle segment covering the port, a distal segment coupled to the sleeve, and a proximal segment coupled to the catheter, wherein the middle segment has a middle longitudinal stiffness, the distal segment has a distal longitudinal stiffness, and the proximal segment has a proximal longitudinal stiffness, wherein the middle longitudinal stiffness is greater than the proximal longitudinal stiffness and the middle longitudinal stiffness is greater than the distal longitudinal stiffness.