Patent ID: 7985236

Claim:
A rapid exchange balloon dilation catheter, the catheter comprising: a catheter shaft having a proximal end and a distal end; a balloon having a proximal end, a distal end and an interior, the proximal end of the balloon being attached to the distal end of the catheter shaft; the catheter shaft further including: a proximal shaft portion, a distal shaft portion, and a transitional shaft portion disposed therebetween including a fluid impervious barrier; a plurality of distal tubular members originating through the fluid-impervious barrier of the transitional shaft portion and extending to the interior of the balloon; a guidewire tubular member having a bore originating from a side aperture and extending through the interior of the balloon to the distal end of the balloon; and a plurality of stiffening members extending from within the fluid-impervious barrier through the transitional shaft portion and into the distal shaft portion.