Balloon dilatation catheter with proximal hypotube

摘要

An intravascular balloon catheter is disclosed which includes a proximal hypotube shaft segment, a distal polymer shaft segment, a distally-mounted inflatable balloon segment, and a hollow tubular member having a proximal end connected to the distal end of the hypotube shaft segment such that the lumen of the hollow tubular member is in communication with the exterior of the balloon catheter and the distal end of the hollow tubular member is connected to the distal end of the balloon.