Needleless hypodermic injection device with non-electric...

Details Needleless hypodermic injection device with non-electric... Needleless hypodermic injection device with non-electric...

A - Human Necessities

61

M

A61M 5/30 (2006.01) A61M 5/20 (2006.01) A61M 5/31 (2006.01)

Patent

CA 2514874

A single use needleless hypodermic injection device for injecting a liquid medication contained therein. The device includes pyrotechnical means for generating within the device a pressure necessary for injecting the medication. The device comprises impact-sensitive stab primer ignition means for igniting a propellant contained in the device. The stab primers ignite with less that (10) millijoules of mechanical energy, enabling small, low cost firing pin mechanisms contained within the device that may be economically discarded after a single use.

L'invention concerne un dispositif d'injection hypodermique sans aiguille à usage unique destiné à injecter un médicament liquide qu'il contient. Le dispositif comprend un moyen pyrotechnique destiné à générer, à l'intérieur du dispositif, une pression nécessaire à l'injection du médicament. Le dispositif comprend un moyen d'allumage d'amorce à transmetteur sensible à l'impact destiné à allumer un agent propulseur contenu dans le dispositif. Les amorces à transmetteur s'allument avec moins de 10 millijoules d'énergie mécanique, permettant de former des mécanismes de percuteur petit à faible coût contenus à l'intérieur du dispositif et pouvant être éliminés de façon économique après un usage unique.

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