The present invention relates to a filter syringes. Particularly, a syringe has a filter means for filtering foreign materials (such as glass workpiece of an ampoule), modifies, be that injection has a medical fluid to prevent foreign materials. Particularly, even if filter syringe can be aspirated smoothly and inject a medical fluid when filter means with a fine pore size are applied by some power. Filter syringe includes a syringe needle (10), a cylinder (20) and a plunger (30). Filter syringe includes: a suction flow path, is formed continuous to cylinder (20), including unidirectional valve device to prolong from the hollow cap (100) with newspaper cutting edge One injection flow path form, it prolongs continuous to syringe needle (10) from cylinder (20), including dismountable beginning and end device (400) for selectively beginning and end syringe needle and a filter people (200), it is used for from a medical filtration foreign materials. Process and its suction flow path shaped member are injected, or injects what process was independently formed from suction flow path. Correspondingly, it injects the one of the syringe needle (10) of process to be independently formed from the process that filter means (200) extend from suction flow path, filter means preparation is that injection has a medical fluid to prevent foreign materials in injection process. Even if one medical fluid can be aspirated and inject when the filter means with a fine pore size are applied. Thus, the convenience and syringe marketability of user can maximize.Copyright KIPO 2017
