| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting tubule which can be connected to a double lumen catheter with a simple operation, and also, has no fear for infection when connecting to a double lumen catheter. SOLUTION: This connecting tubule includes a cannula having a first lumen 11 which opens at the tip end, and a second lumen 12 which opens on a side wall, a connecting means 2 which s provided at the base end part of the cannula 1, and a protection cap 3 which liquid-tightly closes the tip end side of the cannula 1, and at the base end of the protection cap 3, an annular protruding part 31 which liquid-tightly closes the tip end side of the cannula 1 by joining to a side wall of the cannula 1 on a farther base end side than the opening 121 of the second lumen 12, is provided. |
