#$%^&*AU2013205229B220141204.pdf#####ABSTRACT An injection device comprises a first sub-assembly and second assembly. The first subassembly comprises: a chamber for holding a fluid, said chamber comprising an inner 5 surface and an exit aperture； a stopper movably disposed within the chamber and having an outer surface substantially in contact with the inner surface about its perimeter； and an adapter adapted to transfer fluid into the chamber, the adapter comprising means for moving the stopper through the chamber and a conduit for transferring fluid into the chamber when the stopper is moved away from the exit aperture. The second sub10 assembly comprises: a releasable drive mechanism, said drive mechanism comprising an elongate shaft which is driven against the stopper upon activation of the drive mechanism. The adapter is configured to be inserted within the shaft.
