BRERETON, Simon Francis,KEMP, Thomas,BURNELL, Rosie,EKMAN, Matthew
申请号：
ES12705275
公开号：
ES2581481T3
申请日:
2012.02.16
申请国别(地区):
ES
年份:
2016
代理人:
摘要：
Self-injector (1) for administering doses of a liquid drug M, comprising: - an elongated tubular cover (12), - a support subset comprising a tubular support (7) slidably arranged within the cover (12), a delivery spring (8) and a plunger (9), in which the support (7) is adapted to contain a syringe (3) with a hollow injection needle (4), and in which the piston (9) is adapted to advance the loading of the delivery spring (8) to a stop (6) of the syringe (3), in which the syringe (3) can be locked for joint axial translation with the support ( 7), in which the driving spring (8) acts between the support (7) and the piston (9), in which the piston (9) in an initial state is locked with the support (7) by means of a gear in ramp with the support (7) and it is avoided to turn off this ramp gear, depending on a relative longitudinal position of the support (7) in the cover (12), in the that the plunger (9) is arranged so that it is released to rotate out of the ramp gear, once the needle (4) reaches at least almost a predefined injection depth during the translation of the support (7) in the proximal direction (P) to advance the needle (4) beyond a proximal end of the injector (1).Auto-inyector (1) para administrar dosis de un medicamento líquido M, que comprende: - una cubierta tubular alargada (12), - un subconjunto de soporte que comprende un soporte tubular (7) dispuesto, de forma deslizable, dentro de la cubierta (12), un muelle de impulsión (8) y un émbolo (9), en el que el soporte (7) está adaptado para contener una jeringa (3) con una aguja de inyección hueca (4), y en el que el émbolo (9) está adaptado para hacer avanzar la carga del muelle de impulsión (8) hasta un tope (6) de la jeringa (3), en el que la jeringa (3) puede bloquearse para la traslación axial conjunta con el soporte (7), en el que el muelle de impulsión (8) actúa entre el soporte (7) y el émbolo (9), en el que el émbolo (9) en un estado inicial está bloqueado con el soporte (7) mediante un engra
