| 摘要 |
PROBLEM TO BE SOLVED: To provide an injector, which can administer a drug safely and reliably to a living body according to a prescribed method and dosage and can alleviate handling complicatedness and low mechanical reliability, and a holder used therefor. SOLUTION: This injector is constituted by a first syringe 1, a second syringe 2, a Y-shaped connector 3, valve means 4 having functions of allowing or stopping a flow of a liquid and a holder for holding integrally these components. A cylinder end of the first syringe 1 is connected to a first connecting pipe 31 of the Y-shaped connector 3. A cylinder end of the second syringe 2 is connected to a connecting pipe 42 of the valve means 4. A connecting pipe 41 of the valve means 4 is connected to one side of a pipe member 11. The other side of the pipe member 11 is connected to a second connecting pipe 32 of the Y-shaped connector 3. The Y-shaped connector 3 is provided with a one-way valve, which prevents the liquid that flows in from a second connecting port 3b and/or a third connecting port in a third connecting pipe 33 from flowing out from a first connecting port 3a. |
