CONVEYING DEVICE FOR AN APPARATUS FOR ADMINISTERING A DRUG

摘要

A conveying device in or for an apparatus for administering a product, comprising: a) a base (1, 2); b) a first conveying member (4) which can be moved relative to the base (1, 2) and comprises a first thread (8); c) a second conveying member (5) which can be moved relative to the base (1, 2) and comprises a second thread (9) for a threaded engagement with the first thread (8); d) wherein the second thread (9) extends over an axial portion (11, 12) of the second conveying member (5) which is radially flexible in relation to its threaded axis (R)5 such that one of the conveying members (4, 5) can be axially inserted into the other in an overlap of the threads (8, 9); e) and a blocking member (6) which can be moved relative to the base (1, 2), wherein one of the blocking membei (6) and the second conveying member (5) can be moved relative to the other into a blocking position in which the blocking member (6) radially stiffens the second thread (9) in the threaded engagement in the region of the flexible axial portion (11, 12) and thus secures the threaded engagement.