A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 11/00 (2006.01) A61M 15/00 (2006.01) A61M 15/08 (2006.01)
Patent
CA 2253787
A device for dispensing a unit dose of substance comprises a nozzle assembly (2) including a container (24) housing a unit dose of the substance, and an outer body (4) to which the nozzle assembly (2) is releasably attached. The body (4) includes a system actuable to effect discharge of the substance from the nozzle assembly (2) and actuating means operable by a user to effect discharge. Preferably the discharge system comprises a spring-loaded air piston (68) actuable to inject air into the container (24) to cause discharge of the substance. In one embodiment a driving spring for the air piston is loaded with spring energy by the action of installing the nozzle assembly on the body, the driving spring therafter being held in a cocked state until operation of the actuating means by the user to effect release of the spring energy to cause discharge.
L'invention porte sur un dispositif distributeur de doses unitaires de substances comportant un ensemble buse (2) comprenant un réceptacle (24) renfermant la dose unitaire de substance, et un corps extérieur (4) auquel l'ensemble buse (2) est réversiblement fixé. Le corps (4) comporte un système dont la manoeuvre provoque l'éjection de la substance par l'ensemble buse (2) et un moyen d'actionnement que commande l'utilisateur pour produire l'éjection. Le système d'éjection comprend de préférence un piston pneumatique chargé par ressort (68) dont la manoeuvre injecte de l'air dans le réceptacle (24) et entraîne l'éjection de la substance. Dans l'une des variantes, le ressort de commande du piston pneumatique se bande lorsqu'on fixe l'ensemble buse sur le corps, ledit ressort se trouvant à l'état comprimé jusqu'à ce que l'utilisateur actionne l'élément de manoeuvre, ce qui libère l'énergie du ressort et entraîne l'éjection.
Pike Gregory Charles
Riedel Ingo Helmuth
Smith Stephan
Glaxo Group Limited
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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