| abstract |
PROBLEM TO BE SOLVED: To provide a high force transmitting force and a high torque transmitting property, to make a tip portion sufficiently flexible, and to prevent bending at a boundary portion between a main body portion and a tip portion. Provide vasodilators and catheters. SOLUTION: The vasodilator 1 of the present invention comprises an inner tube 5, It has an outer tube 2 inserted into the inner tube 5 and an expansion body 3. The outer tube 2 includes a superelastic metal tube 2b and a synthetic resin tube 2a that covers the metal tube. Slits 2e and the like are formed, so that it is a flexible deformable portion compared to other portions. The catheter 100 of the present invention has a main body composed of a superelastic metal tube 101 and a synthetic resin layer 104 covering the surface thereof, and the distal end of the superelastic metal tube has a slit 106 and the like. It is a flexible deformable part compared to other parts. |