abstract |
The present invention relates to an automatic injector (1) for administering a dose of liquid medicament (M), An elongate case (12) arranged to be held by the user -A tubular chassis (2) which is freely extendable and contractable in the case so as to protrude from the case (12) and is biased against the case; A plunger (9) for advancing the load of the syringe (3) with a hollow injection needle (4), the drive spring (8) and the drive spring (8) to the stopper (6) of the syringe (3); The trigger button (13) initially abutted against the case (12) and thus preventing its operation; Comprising Here, when pushed against the injection site, the chassis (2) is arranged to translate into the case (12) against biasing, and the chassis (2) is placed in the case ( The trigger button (13) in such a way that the trigger button (13) emerges from the case (12) when pressed against the injection site so as to enable operation by being translated towards 12). ) Is coupled to the chassis (2) at least initially. |