Heated cartridge humidifier and humidification chamber for use t

Details Heated cartridge humidifier and humidification chamber for use t Heated cartridge humidifier and humidification chamber for use t

1992-03-31

1993-03-23

Burr, Edgar S.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820316, 12820317, 12820417, A61M 1600

Patent

active

051955156

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.

REFERENCES:
patent: 4051205 (1977-09-01), Grant
patent: 4110419 (1978-08-01), Miller
patent: 4225542 (1980-09-01), Wall et al.
patent: 4366105 (1982-12-01), Nowacki
patent: 4500480 (1985-02-01), Cambio, Jr.
patent: 4674494 (1987-06-01), Wiencek
patent: 4765327 (1988-08-01), Shim
patent: 4913140 (1990-04-01), Orec et al.
patent: 4926856 (1990-05-01), Cambio, Jr. et al.
Operator's manual, The bird.RTM. Humidifier, .COPYRGT.Bird Corporation/3M, 1979, Form L867R2, 25 pages total.

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