Breathable gas apparatus with humidifier
First Claim
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1. A humidifier comprising:
- a base unit configured to attach to and detach from a flow generator, said base unit comprising;
an engagement face adapted to face a corresponding engagement face of the flow generator;
at least one tongue located on the engagement face that is adapted to move vertically and adapted to be resiliently urged downward to engage at least one slot of the flow generator;
an air flow passage configured to receive an air connector of the flow generator;
an electrical connector, for engagement with a mating electrical connector on the flow generator, the electrical connector of the humidifier adapted to provide electrical power to the humidifier from the flow generator;
a pad that stands proud of a surrounding base surface and is resiliently biased upwardly; and
a heating element to heat the pad;
anda tank to receive water, said tank being adapted to be slidable relative to the base unit;
the tank comprising;
a cover;
a base sealingly connected to the cover;
an air inlet passage extending from a side wall of the tank; and
an air outlet provided to a roof of the cover,wherein;
a bottom of the base is exposed to contact the pad as the tank is engaged with the base unit,at least one liquid filling height is indicated by a filling level graduation marked on a wall of the tank,the air inlet passage extends so that it opens in the interior of the tank at a point beyond, in the direction of air flow, a center of the air outlet,the air inlet passage and the air outlet are oriented so that air flows through the air inlet passage in a direction perpendicular to a direction in which the air flows through the air outlet, anda vertical offset is provided between the air flow passage of the base unit and the air inlet passage,a water collection point is located adjacent and outside an entry side of the air inlet passage of the tank.
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Abstract
A humidifier has a base unit with an engagement face that is configured to interface with a flow generator. The humidifier also has a tank configured to be removably received by the base unit and hold a volume of liquid. The tank has a side wall with an air inlet. The humidifier further has an air flow passage configured to receive an air connector of the flow generator at the engagement face of the base unit. The air flow passage is axially offset from a tank inlet. In addition, a cross-section of the airflow passage inlet and a cross-section of the tank air inlet are substantially perpendicular to a horizontal plane.
197 Citations
30 Claims
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1. A humidifier comprising:
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a base unit configured to attach to and detach from a flow generator, said base unit comprising; an engagement face adapted to face a corresponding engagement face of the flow generator; at least one tongue located on the engagement face that is adapted to move vertically and adapted to be resiliently urged downward to engage at least one slot of the flow generator; an air flow passage configured to receive an air connector of the flow generator; an electrical connector, for engagement with a mating electrical connector on the flow generator, the electrical connector of the humidifier adapted to provide electrical power to the humidifier from the flow generator; a pad that stands proud of a surrounding base surface and is resiliently biased upwardly; and a heating element to heat the pad; and a tank to receive water, said tank being adapted to be slidable relative to the base unit;
the tank comprising;a cover; a base sealingly connected to the cover; an air inlet passage extending from a side wall of the tank; and an air outlet provided to a roof of the cover, wherein; a bottom of the base is exposed to contact the pad as the tank is engaged with the base unit, at least one liquid filling height is indicated by a filling level graduation marked on a wall of the tank, the air inlet passage extends so that it opens in the interior of the tank at a point beyond, in the direction of air flow, a center of the air outlet, the air inlet passage and the air outlet are oriented so that air flows through the air inlet passage in a direction perpendicular to a direction in which the air flows through the air outlet, and a vertical offset is provided between the air flow passage of the base unit and the air inlet passage, a water collection point is located adjacent and outside an entry side of the air inlet passage of the tank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of humidifying pressurized gas comprising:
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receiving pressurized gas from ambient or an external source in an air flow passage positioned at a first position within a base unit of a humidifier, the first position being proximate an engagement face of the base unit that is configured to interface with a flow generator; directing the received pressurized gas from the first position within the base unit to an air inlet passage of a tank at a second position that is axially offset from the air flow passage at the first position, the tank being at least partly contained within the base unit and holding liquid; exposing the pressurized gas to the liquid in the tank to humidify the pressurized gas; and collecting liquid at a liquid collection point between the first and second positions if liquid leaks out of the tank through the air inlet passage. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification