A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/20 (2006.01) A61M 5/32 (2006.01) A61M 5/48 (2006.01)
Patent
CA 2465502
The present invention provides a pneumatic injector that includes a pressurized gas source, an actuator, a driver, and a dispenser. The dispenser of the injector includes a reservoir for containing a desired amount of a chosen medicament and a needle, such as a hypodermic needle, suitable for subcutaneous, intramuscular, or intra-articular delivery of the chosen medicament. The actuator actuates the transmission of pressurized gas from the pressurized gas source to the driver, and as pressurized gas is delivered to the driver, the driver exerts at least an injection force. The injection force is of sufficient magnitude to expel a chosen medicament through the needle of the dispenser within a desired amount of time. Advantageously, the design of the injector of the present invention is extremely flexible, allowing the injector to the designed to deliver a wide range of medicaments in virtually any human or veterinary context calling for the injection of the subcutaneous, intramuscular, or intra-articular injection of medicament.
L'invention porte sur un injecteur pneumatique comportant une source de gaz sous pression, un déclencheur, un piston et un distributeur. Le distributeur comprend un réservoir de la quantité voulue du médicament choisi et une aiguille, par exemple hypodermique, pour injections sous-cutanées, intramusculaires, ou intra-articulaires. Le déclencheur entraîne la transmission du gaz sous pression contenu dans une source au piston lequel exerce au moins une force d'injection suffisamment élevée pour expulser le médicament choisi par l'aiguille de l'injecteur pendant le temps désiré. La conception extrêmement souple de l'injecteur permet d'administrer une large gamme de médicaments dans virtuellement tout contexte humain ou vétérinaire nécessitant une injection sous-cutanée, intramusculaire, ou intraarticulaire.
de La Serna Pedro
Gilbert Scott Jay
Alza Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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