| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the medical treatment by injecting the drug solution in a drug solution injecting catheter comprising an expandable and contractible balloon part on a tip part of a shaft part 2 of a very fine flexible tubular body penetrated through a guide wire guide hole, and having a drug solution injecting needle in a state of being advanced and retracted from a needle hole 7 of a peripheral wall of the tip part. <P>SOLUTION: In the catheter 1, the expandable and contractible balloon part 3B is mounted on a front part of a balloon part 3A, an intermediate exposed shaft part 6 having the needle hole 7 is formed between the balloon parts, further blood suction openings 8 are formed on the intermediate exposed shaft part 6 at longitudinal both sides of the needle hole 7 of the intermediate exposed shaft part 6, and communicats with a blood suction hole 12 penetrated through the shaft part 6, and the blood L around the intermediate exposed shaft part 6 can be sucked and taken out from the blood suction ports 8. <P>COPYRIGHT: (C)2004,JPO |
