An injector for the intra-muscular, subcutaneous, or intra-dermal delivery of a fluid medicament to a patient includes a cylindrical member which has a closed end and an open end, and which is formed with a compartment between these two ends. An injection tube extends from the closed end through the...http://www.google.fr/patents/US6406456?utm_source=gb-gplus-shareBrevet US6406456 - Jet injector
