| 摘要 |
PROBLEM TO BE SOLVED: To provide a drug solution injector by which a small amount of another drug solution can continuously be given in the middle of giving drug solution with simple operation. SOLUTION: The drug solution injector includes a cylinder 1 and two gaskets 2 and 3 inserted to this cylinder 1. The cylinder 1 is provided with the entrance 13 and the exit 14 on sidewalls on mutually opposite sides with respect to a longitudinal axis, and a space between the gaskets 2 and 3 is made to be a drug solution chamber 4. The first gasket 2 is provided with a drug solution path 22 at its central part, and the path 22 can be moved from the first position communicating the entrance 13 and the exit 14 of the drug solution to a tip 11. The entrance 13 of the drug solution opens at the inner cavity of the cylinder 1 on a tip side compared with the exit 14, and the first gasket 2 stops at the second position where the chamber 4 communicates the exit 14 of the drug solution and never communicates with the entrance 13. |
