Importance

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Abstract

A disposable heated cartridge humidifier for use with a collapsible water supply container and a heating device, the humidifier adapted for heating and humidifying a breathable gas to be inhaled by a patient. The humidifier includes a humidifier housing having an open upper end. A cap portion sealingly engages the open upper end of the humidifier housing to define a humidifier chamber, and has a gas inlet port, a gas delivery port, and a water delivery port adapted to receive water from the container, all of the ports being in fluid communication with the humidifier housing. The present heated cartridge humidifier also includes a water feed tube depending from an underside of the cap portion, and a float retaining tube circumscribes the feed tube, depends from the underside of the cap portion, is in fluid communication with the humidifier housing and retains a float therein. The float is slidingly retained in the float retaining tube for sealingly engaging a lower end of the water feed tube when the water level in the housing reaches a specified level.

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First Claim