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    • 7. 发明专利
    • INJECTION DEVICE
    • JP2001198225A
    • 2001-07-24
    • JP2000014945
    • 2000-01-24
    • SCHERING AG
    • KICHISE SATORUIMAI HIDEHIROKAKIMI MITSURU
    • A61M39/00A61M5/142A61M39/02
    • PROBLEM TO BE SOLVED: To provide an injection device by which a medicine can be safely and reliably administered into a living body according to prescribed way of using and dosage, and troublesomeness in handling can be reduced. SOLUTION: The injection device is constituted by a first syringe 1 for injecting the medicine, a second syringe 2 for checking the reverse flow of blood and pushing the medicine, a Y-shape connector 3 and a valve means 4 having functions of allowing/preventing the flow of liquid. The cylinder tip of the first syringe 1 is connected to a first connection tube 31 of the Y-shape connector 3. The cylinder tip of the second syringe 2 is connected to a connection tube 42 of the valve means 4, and a connection tube 41 of the valve means 4 is connected to a second connection tube 32 of the Y-shape connector 3. A one-way valve is provided in the Y-shape connector 3 so that the liquid flown from the connection port of the second connection tube 32 and/or the connection port of a third connection tube 33 can be prevented from flowing from the connection port of the first connection tube 31.
    • 10. 发明专利
    • INJECTOR AND HOLDER USED THEREFOR
    • JP2001198216A
    • 2001-07-24
    • JP2000014941
    • 2000-01-24
    • SCHERING AG
    • KICHISE SATORUIMAI HIDEHIROKAKIMI MITSURU
    • A61B17/11A61M5/145
    • 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.