Device for warming and humidifying respiratory gases

Details Device for warming and humidifying respiratory gases Device for warming and humidifying respiratory gases

F - Mech Eng,Light,Heat,Weapons

24

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165/29

F24F 6/00 (2006.01) A61M 16/16 (2006.01) A61M 16/08 (2006.01) A61M 16/10 (2006.01)

Patent

CA 2021750

An apparatus for warming and humidifying respiratory gases during artificial respiration includes two passive heat and moisture exchangers and an active warming and humidifying element disposed between them in a housing. The first passive heat and moisture exchanger serves to preheat and prehumidify cold and dry gases to be inhaled. In a further, downstream, active heat and moisture exchanger and the second heat and moisture exchanger, gases are additionally heated and humidified, thus ensuring optimum physiological conditioning of the respiratory gases to a temperature of 36°-37° C. and 100% relative humidity. In an exhalation phase, 70 to 80% of humidity and heat are recovered from the optimally conditioned humid and warmed respiratory gas with the aid of the two integral passive heat and moisture exchangers.

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