| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid injecting apparatus which prevents a liquid chemical sucked into a liquid chemical chamber from being contaminated with silicone oil. SOLUTION: The liquid injecting apparatus 1 includes a first barrel 2 on which a cannula 5 is mounted, a cylindrical connection means 4 attached to the inside of the first barrel 2 on its rear side by being fit therewith, and a syringe 3 connected to the inside of the connection means 4 on its rear side. By inserting the cannula 5 into the liquid chemical while the plunger 6 of the syringe 3 is pushed in, and pulling back the plunger 6, the liquid chemical is sucked into the liquid chemical chamber 7 of the first barrel 2. By pushing in the plunger 6 from the state, the liquid chemical inside the liquid chemical chamber 7 is injected to a container not shown in figure. By this invention, since the plunger is not fitted with the first barrel 2, the need of applying the silicone oil to the inner circumferential surface of the first barrel 2 is eliminated. Thus, the liquid chemical sucked into the liquid chemical chamber 7 is not contaminated with the silicone oil. COPYRIGHT: (C)2009,JPO&INPIT
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