Ventilatory air humidifier for a breathing equipment

Details Ventilatory air humidifier for a breathing equipment Ventilatory air humidifier for a breathing equipment

1989-05-11

1991-04-09

Burr, Edgar S.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820312, A61M 1500

Patent

active

050055690

ABSTRACT:
An air venting humidifer for breathing equipment which is installed in the duct draft of a ventilation air tube between a ventilation air source and a ventilation air connection piece comprises a multi-layered water-impermeable but steam permeable membrane. The membrane has a separation wall which is surrounded by a water-filled humidification chamber having a flexible outer wall. Pressure can be exerted on this outer wall by air pressure in a surrounding ventilation air chamber containing and conveying the ventilation air. The humidification output of the air becomes independent of the pressure in the interior of the hollow fiber air flow chambers and the humidification of the ventilation air is adjusted to the requirements of the user. For this purpose the outer wall of the humidification chamber is surrounded by an antechamber which can be filled with the ventilation air and which is connected with the ventilation air chamber by means of a throttle.

REFERENCES:
patent: 4146597 (1979-03-01), Eckstein et al.
patent: 4155961 (1979-05-01), Benthin
patent: 4318398 (1982-03-01), Oetjen et al.
patent: 4327717 (1982-05-01), Oetjen et al.
patent: 4355636 (1982-10-01), Oetjen et al.
patent: 4367734 (1983-01-01), Benthin
patent: 4381267 (1983-04-01), Jackson

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