| 摘要 |
<p>A pre-filled syringe (100) includes an outer cylinder (1) having a nozzle (2) sealed with a sealing member (4) and an opening formed at a rear end thereof; an inner cylinder (6) movable forward and rearward in the outer cylinder (1), forming a first space (9) between the inner cylinder (6) and an inner side of the front end of the outer cylinder (1), and having an opening formed at each of front and rear ends thereof; a first gasket (10) slidably accommodated in the inner cylinder (6) in a liquid-tight state; a second gasket (11) accommodated slidably in the inner cylinder (6) in a liquid-tight state and located rearward from the first gasket (10) and forming a second space (12) between the second gasket (11) and the first gasket (10); a plunger (13) attached at a rear end of the second gasket (11); a third gasket (14) installed at the front end of the inner cylinder (6) or in the vicinity of the front end thereof such that third gasket (14) is slidable in a liquid-tight state between the inner cylinder (6) and the outer cylinder (1); a first medicine (A) stored in the first space (9); and a second medicine (B) stored in the second space (12). The inner cylinder (6) has a portion, formed at the front end thereof, for preventing the first gasket (10) from slipping off from the opening formed at the front end of the inner cylinder (6); and a rib (15) extending from an inner side surface of the front end of the inner cylinder (6) in an axial direction of the inner to form a medicine duct for moving the second medicine (B) into the first space (9), when the first gasket (10) moves to the front end of the inner cylinder (6). <IMAGE></p> |
