MATTHEW EKMAN,ROSIE BURNELL,SIMON FRANCIS BRERETON,THOMAS KEMP
申请号：
BR112013020900
公开号：
BR112013020900A2
申请日:
2012.02.16
申请国别(地区):
BR
年份:
2016
代理人:
摘要：
patent summary: "autoinjector". The present invention relates to an autoinjector (1) for administering a dose of a liquid medicament (m) comprising: - a tubular chassis (2) fitable to a tubular housing (12), - a carrier subassembly comprising a carrier tubularly (7) slidably disposed with respect to the chassis (2) within the housing (12), the carrier (7) arranged to contain a syringe (3) with a hollow injection needle (4), a drive spring (8) and a plunger (9) for directing the drive spring load (8) to a syringe cap (6), wherein the syringe (3) may be locked to join axial translation with the carrier (7), - an activation button (13) disposed distally or laterally in or on the housing (12), - a control spring (19) disposed around the carrier (7), - an extension control mechanism of the needle (24) to engage a proximal end of the control spring (19) and the carrier (7) to advance it to the needle extension or to the needle retracting chassis (2) depending on the relative axial position of the carrier (7) and the chassis (2), - a plunger release mechanism (27) arranged to release the plunger (9) for injection when the carrier (7) reaches at least nearly an extended proximal position, - a distal mechanism (18) arranged to couple the chassis (2) to the carrier (7) to join the axial translation with respect to the housing (12), wherein the The retainer (18) is arranged to decouple the chassis (2) from the carrier (7) upon actuation of the activation button (13) thereby allowing the carrier (7) to move relative to the chassis (2) For the needle extension control mechanism (24) to switch the proximal end of the control spring (19) to the needle extension carrier (7), a syringe retraction control mechanism (25) arranged to engage one end control spring (19) or the carrier (7) for needle retraction or otherwise (12) to the box.resumo patente de invenção: "autoinjetor". a presente invenção refere-se a um autoinjetor (1) para administrar uma dose de um medicamento líquido (m),
