BALLOON FOR CATHETER, BALLOON CATHETER, AND BLOOD VESSEL EXPANSION CATHETER

摘要

PPROBLEM TO BE SOLVED: To provide a balloon for a catheter and a balloon catheter with sufficient strength (pressure-resistance), flexible, and excellent in the trackability. PSOLUTION: The balloon 21 for the catheter comprises a tubular part 5 and catheter joint parts at both ends of the tubular part. The balloon 21 also has a base material layer 2 made of a base material layer forming resin and coating layers 3 formed on both surfaces of the base material layer 2, made of a coating layer forming resin softer than the base material layer forming resin. At least 10% of the stress by the internal pressure when the maximum internal pressure is applied inside the balloon is applied to the coating layers 3 formed on both surfaces of the base material layer 2. PCOPYRIGHT: (C)2005,JPO&NCIPI