| 摘要 |
The invention relates to an auto-injector with an interlock mechanism for defining an operation sequence of the auto-injector (1 ) in a manner to allow a lateral trigger button (16) to be operated only when a proximal end (P) of the auto-injector (1 ) is pressed against an injection site, wherein a detector means (18) is arranged inside an elongate housing (2) of the auto-injector (1 ) at the proximal end (P), the detector means (18) slidable in longitudinal direction and biased by a detector spring (19) into a position with the detector means (18) protruding beyond the proximal end (P), wherein a dog (16.2) is arranged at the trigger button (16) and wherein at least one longitudinal bar (18.1, 21 ) is provided, at least one of the bars (21 ) slidable in longitudinal direction and coupled to the detector means (18) for joint movement at least in distal direction (D), wherein a recess (21.1 ) for the dog (16.2) is provided in the bar (21 ) for allowing the trigger button (16) to be pressed when the detector means (18) is being pushed into the auto-injector (1 ) and wherein otherwise the dog (16.2) is engaged with the bar (21 ) in a manner to prevent the trigger button (16) from being pressed. |
