A needle-less injector device for delivering a dose of fluid intradermally, subcutaneously or intramuscularly to an animal or human. The device includes an inner housing having opposed ends. A syringe is disposed in one end of the inner housing. The syringe includes a nozzle for delivering a dose of...http://www.google.fr/patents/US7618393?utm_source=gb-gplus-shareBrevet US7618393 - Needle-less injector and method of fluid delivery