| 摘要 |
PROBLEM TO BE SOLVED: To provide a blood vessel catheter which can simplify operations required for observation, diagnosis and evulsion after introduction of the blood vessel catheter containing an endoscope to an object site and obtain a sufficient field of vision. SOLUTION: A flush lumen 13 for flush liquid injection is provided in a blood vessel catheter with a stop plug 12 provided at a tip part, and communicated with a balloon 1 through a penetrating hole 14. A regulator 50 to automatically control the balloon expansion diameter in a certain range is provided in a discharge lumen which can inject flush liquid into a blood vessel from the tip part of the balloon 1 through the tip part of the blood vessel catheter. Injection of flush liquid enables expansion of the balloon and injection of flush liquid after balloon expansion in one operation. |
