Steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities.

摘要

Steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities and comprising an elongate flexible tubular member (12) having first and second lumens (13, 16) extending therethrough and a balloon (17) carried by the distal portion of the tubular member and having its interior in communication with the second lumen. A guide wire (21) extends through the first lumen and has a coil (23) carried by the distal portion thereof and extending beyond the distal extremity of the tubular member. A device (42) is coupled to the guide wire facilitating at least limited rotation of the distal extemity of the guide wire. A first fitting (32) is coupled to the second lumen and is adapted to receive a liquid for inflating and deflating the balloon. A second fitting (38)is in communication with the first lumen. The first lumen and the guide wire are sized so that dye injections and/or pressure measurements can be made through the second fitting.