| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous liquid medicine injector which is easily set in vacuum, only a syringe for liquid medicine of which is disposable, and a syringe with negative pressure at operation side of which is able to use repeatedly. SOLUTION: This invention has a stopper that can stop a piston (3) sealed in a negative pressure syringe (2) with opening a back end having an open and shut valve (2") at the front end and opening at the back end of the negative pressure syringe against atmospheric pressure. The first structure A comprising a pusher (7) movable to the same direction as the piston outside the negative pressure syringe and the second structure having a piston (11) sealed in a liquid medicine syringe (10) by liquid with opening the back end for liquid medicine (9) at the front end and opening at the back end are installed attachable and removable. Negative pressure area made by the negative pressure syringe with the sealed piston is possible to be performed independent from pouring liquid medicine into the liquid medicine syringe, liquid medicine is disposable, and the syringe with negative pressure side is able to use repeatedly. |
