Rosie Burnell;Thomas Kemp;Matthew Ekman;Simon Francis Brereton
发明人:
Simon Francis Brereton,Thomas Kemp,Rosie Burnell,Matthew Ekman
申请号：
US13983811
公开号：
US20130317428A1
申请日:
2012.02.16
申请国别(地区):
US
年份:
2013
代理人:
摘要：
An auto-injector for administering a dose of a liquid medicament (M) is presented having a tubular chassis telescopable in an elongate chassis, a carrier subassembly comprising a tubular carrier slidably arranged partially inside the chassis and inside the case, where the carrier is adapted to contain a syringe with a hollow injection needle, a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier. The auto-injector also has a control spring arranged around the carrier, a needle insertion control mechanism for coupling a proximal end of the control spring to either the carrier for advancing it for needle insertion or to the chassis, wherein the needle insertion control mechanism comprises a first collar biased by the control spring in a proximal direction (P), wherein at least one fifth clip is arranged on one of the chassis or the first collar initially abutting a block on the other of the chassis or the first collar.
