| 摘要 |
The present invention, there is provided a catheter (20) comprising: a hollow body (21) introducible into the blood vessel and opened (21E) at a distal end thereof: and a proximal end (22) communicating with the hollow inside of the body (21) and having an introduction passage (23) with a hemostatic valve (25) disposed therein, the body (21) having side hole (21H) means formed therein. As has been described above, according to the present invention, there is provided a catheter (20) that has a diameter small enough to facilitate percutaneous insertion at the time of auxiliary blood circulation but is capable of assuring a sufficient amount of drawn-out or pumped-in blood. The present invention, there is provided an assembly for extracorporeal circulation comprising: an introducing instrument (120); and a connecting instrument (130), the introducing instrument (120) including a sheath (121) introducible into the blood vessel, and a proximal part (122) communicating with the sheath (121) and having a plurality of introduction passages (123,124) with hemostatic valves (125,126) disposed therein, the connecting instrument (130) including a tubular portion (131) capable of being connected with at least one of the introduction passages (123,124) of the proximal part (122) of the introducing instrument (120) and capable of being inserted in a liquid-tight manner through the hemostatic valve (125,126) disposed in the connected introduction passage (123,124).
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