Low-profile steerable intraoperative balloon dilitation catheter

摘要

Low-profile steerable intraoperative balloon dilatation catheter with a flexible core wire having proximal and distal extremities. A flexible tube extends over the core wire and has proximal and distal extremities with the distal extremity being bonded to the distal extremity of the core wire to form a liquid-tight seal. A balloon is carried by the distal extremity of the flexible tube. The flexible tube provides a lumen extending from its proximal end into the balloon. An adapter is secured to the proximal ends of the core wire and the flexible tube. The adapter has at least first and second arms with the core wire extending through the first arm and the lumen being in communication with the second arm. A rotation limiter is carried by the first arm and is secured to the core wire and permits rotation of the core wire while limiting its movement longitudinally of the axis of the core wire. The catheter has a length so that there is approximately a one-to-one correspondence in rotation of the tip of the core wire with the rotation of the core wire at the proximal extremity.