Abstract: A filter needle for a syringe including a syringe needle having a needle, a fixing member for fixing the needle and an inner space formed in the fixing member, and a syringe body having a cylinder, a piston and a front end separably installed in the inner space of the fixing member of the syringe needle, is provided. The filter needle includes a filter structure installed in the inner space of the fixing member of the syringe needle and including an one-way inlet path having an inlet and an one-way outlet path having an outlet, each of which has a check valve function, and a filter installed in the outlet path at a rear end of the outlet to filter a foreign substance, which is input through the inlet together with a medicament liquid, from the medicament liquid such that the medicament liquid is only injected into a patient through the outlet when injecting the medicament liquid into the patient.

Abstract: Disclosed is a filter needle in which a filter structure is embedded in the inner space of a fixing member of a syringe needle. The filter structure has an inlet and an outlet, each of which functions as a check valve, and an inlet path and an outlet path provided with a filter, wherein the inlet path and the outlet path are formed at the rear end of the filter structure. Thus, when a medicament liquid flows out from the ampoule and injected into a patient, foreign substances, such as powder generated during the opening of an ampoule, which otherwise might be introduced into the main body of a syringe and injected into a patient, are filtered by a filter. The filter needle enables the medicament liquid to be injected into the patient without exchanging the syringe. The filter needle is integrally formed of medical silicone to enable easy assembly and safety during use.

Abstract: Disclosed is a filter needle in which a filter structure is embedded in the inner space of a fixing member of a syringe needle. The filter structure has an inlet and an outlet, each of which functions as a check valve, and an inlet path and an outlet path provided with a filter, wherein the inlet path and the outlet path are formed at the rear end of the filter structure. Thus, when a medicament liquid flows out from the ampoule and injected into a patient, foreign substances, such as powder generated during the opening of an ampoule, which otherwise might be introduced into the main body of a syringe and injected into a patient, are filtered by a filter. The filter needle enables the medicament liquid to be injected into the patient without exchanging the syringe. The filter needle o is integrally formed of medical silicone to enable easy assembly and safety during use.