Respiratory air humidifier for respirators

Details Respiratory air humidifier for respirators Respiratory air humidifier for respirators

1977-04-21

1979-03-27

Chiesa, Richard L.

Gas and liquid contact apparatus

Contact devices

Porous sheet

128186, 261107, 261DIG65, B01F 304, A61M 1500

Patent

active

041465970

ABSTRACT:
A respiratory air humidifier comprises a plurality of hollow tubules having walls of a foil material which is impermeable to water but is permeable to steam vapor. The tubules have inside diameters of less than 300 microns and are about 15 microns thick. Breathing gas to be humidified is directed over one side of the foil for example through the tubules and the water is directed over the opposite side for example the exterior of the tubules.

REFERENCES:
patent: 3228877 (1966-01-01), Mahon
patent: 3342729 (1967-09-01), Strand
patent: 3403531 (1968-10-01), Oesterheld
patent: 3735558 (1973-05-01), Skarstrom et al.
patent: 3856475 (1974-12-01), Marx
patent: 3871373 (1975-03-01), Jackson
patent: 3912795 (1975-10-01), Jackson
patent: 3953334 (1976-04-01), Brun et al.
patent: 4010748 (1977-03-01), Dobritz

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