A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 37/00 (2006.01)
Patent
CA 2612307
The present invention provides a device and method for selectively providing multiple applications of an agent formulation on the skin piercing portions of a micrÌprojection member to form an agent-containing coating on the microprojections. The formulation is dried to form a solid coating which contains the agent. A continuous conveyor strip bearing multiple microprojection members is spiral wrapped around a product drum so that each microprojection member is conveyed past a reservoir a plurality of times. The reservoir is configured to transfer an application of agent formulation onto the microprojection member each time it passes the reservoir.
La présente invention concerne un procédé et un dispositif permettant, de manière sélective, de multiples applications d~une préparation d~agent actif sur des zones de perçage de la peau d~un élément à microprojections afin de former une couche contenant l~agent sur les microprojections. La préparation est séchée pour obtenir une couche solide qui contient l~agent. Une bande de transport continue comprenant une pluralité d~éléments à microprojections est enroulée en spirales autour d~un tambour de produit de sorte que chaque élément à microprojections soit amené à traverser un réservoir à plusieurs reprises. Le réservoir est configuré pour appliquer la préparation d~agent sur l~élément à microprojections à chaque passage de ce dernier dans le réservoir.
Daddona Peter E.
Dohner John
Alza Corporation
Borden Ladner Gervais Llp
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