A jet injector having cartridge and power pack assemblies is disclosed. In one embodiment, the cartridge assembly includes a tube containing the medicament with a plunger at one end and a stopper at the other end. The plunger is movable within the tube lumen to force the stopper against a needle, thereby...http://www.google.fr/patents/US6682504?utm_source=gb-gplus-shareBrevet US6682504 - Single use disposable jet injector
