#$%^&*AU2009217376B220130117.pdf#####ABSTRACT The invention relates to a threaded rod (4) for an injection device (1). which comprises a thread (4b, 4c, 4d) which is arranged on the external side of the threaded rod (4). The thread (4b, 4c, 4d) supports, at least partially, engaging elements and/or a toothing (4b). The invention also relates to a dosing device for an injection device (1). comprising a rotational defining element which enables the threaded rod to be rotated in one direction and blocked in the counter direction, by means of at least one blocking element (6f) and/or one toothing (lj, 3j). which co-operates with a thread comprising a toothing (4b) of the threaded rod (4) and/or engaging elements (4c) off the threaded rod (4). The invention further relates to an injection device which comprises at least one engaging element (60 and/or one toothing or stop (lj, 3j) which co-operate with the toothing on the thread (4b) of a threaded rod (4) or with a blocking element (4c) of the threaded rod (4), in order to rotate the threaded rod (4) in one direction in relation to the injection device (1) and to block in the counter direction. 884062_1.docI I v 3 FIG. 3B 3c ib 6a . . 4b 6b
