A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/20 (2006.01) A61M 5/28 (2006.01) A61M 5/31 (2006.01) A61M 5/34 (2006.01) A61M 5/32 (2006.01)
Patent
CA 2425143
The present invention is directed to an automatic injection device containing a pre-loaded charge of medicament for automatically self-administering the medicament upon actuation thereof. The automatic injection device includes a housing assembly having an interior chamber, a filter assembly, an activation assembly and a needle assembly. In accordance with the present invention, the interior chamber may include a dry compartment for storing a predetermined dry charge of dry medicament therein, and a wet compartment for storing a predetermined amount of liquid injection solution therein. The filter assembly enhances the laminar flow of fluid between the wet compartment to the dry compartment prior to the pressurization of the liquid injection solution within the wet compartment.
La présente invention concerne un dispositif d'injection automatique contenant une charge préchargée de médicament en vue de l'auto-administration automatique du médicament par actionnement du dispositif. Le dispositif d'injection automatique est constitué d'un ensemble carter comportant une chambre intérieure, un ensemble filtre, un ensemble actionneur, et un ensemble aiguille. Selon la présente invention, la chambre intérieur peut être constituée d'un compartiment sec servant à contenir une charge sèche définie d'un médicament sec, et d'un compartiment humide servant contenir une quantité définie de solution injectable liquide. L'ensemble filtre renforce le flux laminaire du fluide du compartiment humide au compartiment sec préalablement à la pressurisation de la solution injectable liquide à l'intérieur du compartiment humide.
Griffiths Steven
Hill Robert L.
Wilmot John G.
Gowan Intellectual Property
Meridian Medical Technologies Inc.
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