#$%^&*AU2019283773A120200116.pdf#####ABSTRACT A plunger assembly for a fluid dispensing syringe, the plunger assembly comprising: a plunger rod assembly including a distal portion comprising a threaded member； and a stopper including an elastomeric body having a distal end and a proximal end, the stopper defining a non-threaded, inner cavity, the inner cavity including a first pair of frustoconical inner surfaces and a second pair of frustoconical inner surfaces, the first pair of frustoconical inner surfaces being connected to a cavity opening and located proximal to the second pair of frustoconical inner surfaces, wherein at least one of the pairs of frustoconical inner surfaces is configured to engage the threaded member. Fig.1 5C rL g
