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US 12,527,924 B2Granted
Nebulizer and container
AssigneeBoehringer Ingelheim International GmbH
InventorsGilbert Wuttke, Herbert Graessl, Heinrich Kladders
Life of this patent
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Abstract
A nebulizer for nebulizing a liquid from a container, where the nebulizer includes a fluid pump for withdrawing the liquid in doses from the container and pressurizing the respective doses for nebulization. The container includes an air pump with a piston/cylinder arrangement to pressurizing the liquid in the container to help withdrawing the liquid from the container. A control valve limits the air pressure acting on the liquid.
Claims26
A nebulizer (1) for nebulizing a liquid (2), comprising:
- a replaceable container (3) containing multiple doses of the liquid (2),
- a fluid pump (5) for withdrawing a dose of the liquid (2) from the container (3) and pressurizing the respective dose for nebulization,
- an air pump (30) for pressurizing the liquid (2) in the container (3) to help withdrawing the liquid (2) in doses from the container (3), and
- a housing part (18) which is detachable from the nebulizer (1) or opened for inserting or replacing the container (3),
- wherein the nebulizer (1) or the air pump (30) comprises a control valve (44) adapted to limit the air pressure generated by the air pump (30) for pressurizing the liquid (2) in the container (3) to one or more values above ambient pressure (PA) independently from a filling level of the container (3) with respect to the liquid (2).
2 more elements
Dependencies are inferred from the claim text.