An auto-injector having syringe blocking or gripping means

摘要

An autoinjector comprises an outer housing in which can be mounted a syringe 8 for holding a volume of medicament, the syringe 8 for holding medicament having a needle 1 at one end thereof, a syringe holder for supporting the syringe in an axial position relative to the outer housing, and an intermediate housing 6 at least part of which is located within said outer housing, characterised in that said intermediate housing 6 is provided with a blocking or gripping means 7 capable of abutting the syringe 8 or the syringe holder so as to be capable of preventing forward axial movement of the syringe 8 when a forward axial force is applied to said needle 1 before actuation of the autoinjector to deliver an injection, but incapable of preventing forward axial movement of the syringe 8 during actuation of the autoinjector to deliver an injection.