Process and device for the preparation of a gaseous mixture comp

Details Process and device for the preparation of a gaseous mixture comp Process and device for the preparation of a gaseous mixture comp

1995-11-20

1997-06-10

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820222, 12820324, 12820325, A61M 1500

Patent

active

056366264

ABSTRACT:
A sealed receptacle (1) contains the additive in liquid phase. A dip tube (3) permits sending the additive to a heating enclosure (5) in which the liquid vaporizes before being sent to a collector-mixer (11) through a constriction (10). The flow rate of additive is controlled by the pressure prevailing above the liquid in the receptacle (1) thanks to a control valve (20) connected by a pressure regulator (25) to a computer (26). This latter receives predetermined values of concentration of the mixture through an input (27). It is preferably connected to a detector (28) of the temperature of the enclosure and/or to an analyzer (30) of the composition of the mixture. Used particularly in anesthesia apparatus.

REFERENCES:
patent: 3528418 (1970-09-01), Grosholz et al.
patent: 4484576 (1984-11-01), Albarda

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