Patent ID: 6090126
Filing Date: 2000-07-18
Classification: A61M

Abstract:
A catheter having a balloon at a distal end thereof, the balloon having an interior that is inflatable upon pressurization with inflation media and a seal preventing leakage of inflation media from the catheter, the seal comprising:a first region disposed on a first portion of the catheter and having a first surface contour; anda second region disposed on a second portion of the catheter, the second region being movable with respect to the first region and having a second surface contour corresponding to the first surface contour, the second region being movable with respect to the first region, the first and second regions spaced apart by a distance sufficiently small to prevent inflation media from flowing therebetween, thereby forming a seal, the seal positioned to commence proximate the proximal end of the balloon and to extend distally into the balloon, and to separate a first volume within the catheter that is in communication with the balloon interior from the exterior of said catheter.