Dispenser for a liquid

A - Human Necessities – 61 – M

Patent

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Details

A61M 11/00 (2006.01) A61M 15/08 (2006.01) B05B 11/04 (2006.01) B65D 1/02 (2006.01) B65D 83/00 (2006.01)

Patent

CA 2624696

A dispenser (1) for a liquid is provided which is particularly, though not exclusively, useful for dispensing liquid medical compositions such as nasal sprays. The dispenser employs at least one, though preferably two, semi-rigid casing halves (2,3), defining a liquid reservoir (12), within which is mounted a bridge member (21) which performs the functions of dip tube, dose metering pump, and outlet orifice. An air inlet (8) may be provided into the reservoir, to allow air to enter as liquid leaves, in which case it may be provided with a liquid- impermeable, and preferably bacteria- impermeable, cover (9). Other constructions are described in which no such cover need be provided, or in which the need for an air inlet can be avoided altogether.

L'invention porte sur un distributeur de liquide qui convient particulièrement bien, quoique de manière non exclusive, à la distribution de compositions médicales liquides telles que les pulvérisations nasales. Le distributeur de l'invention fait appel à au moins une, mais de préférence deux moitiés de boîtier semi-rigides définissant un réservoir de liquide à l'intérieur duquel est monté un élément pont qui exerce les fonctions de tube plongeur, de pompe de dosage et d'orifice de sortie. Une entrée d'air peut être ménagée dans le réservoir afin de permettre à l'air d'entrer au fur et à mesure que le liquide sort, auquel cas l'entrée peut être équipée d'un capuchon imperméable aux liquides et de préférence imperméable aux bactéries. L'invention se rapporte également à d'autres constructions dans lesquelles un tel capuchon n'est pas nécessaire ou dans lesquelles il n'est pas nécessaire de disposer d'une entrée d'air.

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