Needleless hypodermic jet injector

摘要: A system is provided that useful for a hypodermic jet injection of medication without piercing the skin with needle. The includes spring actuated needleless injector device injecting through skin. an ampule assembly having chamber holding liquid and receiving mounting assembly. plunger assembly, movable within used drawing into ejecting out from chamber. piston which provides force to move thereby leave at such velocity it can be hypodermically injected site. also coupler use on vial transferring cocking/carrying case automatically cocks when placed case, lid closed.