| 摘要 |
A filter device, and an injection injecting device containing the filter device are provided to allow the impurities to be filtered completely by forming vortex with passing the fluid through with a constant velocity irrespective of the kind and viscosity of fluid. A filter device(300) comprises an inlet pipe(312) which has an inlet hole(311) connected with a fluid supply line and flows the fluid flown through the inlet hole into the filter device; a filter housing(320) which is connected with the inlet pipe and goes through the outside; and an opening/closing member(313) which is located inside the filter housing, forms a trap space part(319) and opens/closes the inlet pipe, wherein the opening/closing member converts the fluid into the direction other than the inflow direction from the inlet pipe when the inlet pipe is opened by the inflow of fluid so as to guide it to the trap space part, and the fluid is flown into the filter housing after the impurities contained in the fluid is removed in the trap space part.
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