Cartridge for a liquid

Details Cartridge for a liquid Cartridge for a liquid

2006-01-24

2006-01-24

Lo, Weilun (Department: 3743)

Surgery

Liquid medicament atomizer or sprayer

C128S200110, C239S271000, C239S272000, C222S081000

Reexamination Certificate

active

06988496

ABSTRACT:
For meteredly dispensing a liquid over a period of several months from a container which can be stored over a long period of time, the need is for a container which is practically diffusion-tight and in which the liquid does not come into contact with the ambient atmosphere.The cartridge according to the invention is a three-shell container comprising a collapsible bag which contains the liquid, a container which is stable in respect of shape and a stiff metal casing. The cartridge can be releasably connected to a dispensing device. The cartridge can be provided with a micro-opening with which the time for pressure equalisation between the cartridge and the ambient atmosphere can be adjusted. The cartridge is suitable for aqueous and for alcoholic liquids which contain a pharmacologically active substance. The liquid in the cartridge is protected from external influences.The cartridge can be used in an atomiser for producing an inhalable aerosol for the treatment of illnesses.

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