MATTHEW EKMAN,SIMON FRANCIS BRERETON,THOMAS KEMP,ROSIE BURNELL
申请号：
MX2013009165
公开号：
MX338986B
申请日:
2012.02.16
申请国别(地区):
MX
年份:
2016
代理人:
摘要：
The invention relates to an auto-injector (1) for administering a dose of a liquid medicament (M), comprising: - an elongate case (12) arranged to be held by a user, - a tubular chassis (2) telescoped in the case (12) and biased against the case (12) so as to protrude from the case (12), - a syringe (3) with a hollow injection needle (4), a drive spring (8) and a plunger (9) for forwarding load of the drive spring (8) to a stopper (6) of the syringe (3), - a trigger button (13) distally arranged in or on the case (12), wherein the trigger button (13) is initially coupled to the case (12) in a manner to protrude distally from the case (12) and interlocked to the chassis (2) in a manner preventing the trigger button (13) from disengaging the case (12) and thus preventing actuation of the trigger button (13) in an initial position, wherein the case (12) is arranged to translate in the proximal direction (P) against the bias relative to the chassis (2) when the chassis (2) is pressed against an injection site thereby also translating the trigger button (13) releasing the interlock to the chassis (2) so as to allow actuation of the trigger button (13), wherein the trigger button (13) is arranged to lock in a more proximal position on actuation.La invención se refiere a un auto-inyector (1) para administrar una dosis de un medicamento líquido (M), que comprende: - una carcasa alargada (12) dispuesta para ser sostenida por un usuario, - un chasis tubular (2) telescópico en la carcasa (12) y predispuesto contra la carcasa (12) para sobresalir de la carcasa (12), - una jeringa (3) con una aguja de inyección hueca (4), un resorte de impulso (8) y un émbolo (9) para reenviar la carga del resorte de impulso (8) a un tapón (6) de la jeringa (3), - un botón disparador (13) dispuesto en sentido distal en o sobre la carcasa (12), en el que el botón disparador (13) se acopla inicialmente a la carcasa (12) de una manera para sobresalir en sentido distal desde la carcasa (12) y enganc
