Prefilled syringe

摘要

A prefilled syringe (K1-K3) comprising: a tubular body (1) which has an open front end and an open rear end; a front assembly (15) which is mounted on an outer periphery of a front end portion of the tubular body (1); a finger grip (12) which is mounted on an outer periphery of a rear end portion of the tubular body (1); a front sealing member (3) which is provided in the tubular body (1) so as to be disposed forwardly of injection liquid (l); a rear sealing member (4, 5) which is provided in the tubular body (1) so as to be disposed rearwards of the injection liquid (l); a plunger rod (2) which is provided so as to be movable in the tubular body (1); a temporary stop member (17; 20; 30, 31) for temporarily stopping the plunger rod (2) through retention of the temporary stop member (17; 20; 30, 31) by the finger grip (12) such that the rear sealing member (4, 5) is temporarily stopped at a predetermined position (1b) of the tubular body (1); and a retention canceling member (18; 23; 30b) for canceling the retention of the temporary stop member (17; 20; 30, 31) by the finger grip (12) without moving the plunger rod (2). <IMAGE>