Nasal spray device with elastomeric valve

Details Nasal spray device with elastomeric valve Nasal spray device with elastomeric valve

B - Operations, Transporting

05

B

B05B 11/00 (2006.01) A61M 15/02 (2006.01) A61M 15/08 (2006.01) B05B 5/025 (2006.01) B05B 5/16 (2006.01)

Patent

CA 2325043

The invention relates to a spray device adapted to provide multiple, unit doses of a fluid, each dose having a volume in the range from about 1 to about 100 µ.lambda., the device comprising an elastomeric, self-sealing valve having a fluid side and a delivery side, the valve opening to allow passage of the fluid when pressure is applied to fluid on the fluid side and sealing when the pressure is removed. The valve achieves a clean stop-start flow of the fluid at low fluid volumes. The device is particulary suitable for low volume medical applications such as nasal spraying.

L'invention se rapporte à un dispositif de pulvérisation conçu pour fournir des doses multiples et unitaires d'un fluide, chaque dose ayant un volume compris entre environ 1 et environ 100 µl, le dispositif comprenant une soupape élastomère auto-étanche possédant un côté pour les fluides et un côté pour la distribution. La soupape s'ouvre pour permettre le passage du fluide lorsqu'une pression est exercée sur le fluide du côté pour les fluides et se renferme étanche lorsque la pression retombe. La soupape permet d'assurer un écoulement régulier du fluide entre la marche et l'arrêt, avec de faibles volumes de fluide. Le dispositif convient particulièrement bien à des applications médicales telles que la pulvérisation nasale.

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