#$%^&*AU2013205654A120140116.pdf#####ABSTRACT A syringe with a blocking structure, and a rod is pushed backward with respect to a cylindrical body of the syringe, so that a flange abuts a flexible blocking plate and an abutting portion blocks the flexible blocking plate. 15CYD cq C---A C\j Iss Lo LO r-.-q Lo V6 C\l C\l CYD C.C) Ss