Nitric oxide gas supply system of respiratory failure salvage instrument

Abstract

Disclosed a nitric oxide supply system of respiratory failure rescue device belongs to the disease therapy apparatus, which avoids the high concentration NO gas cylinder, the high concentration dry gas cylinder and the nitrogen-oxygen mixed gas cylinder. The invention uses the air as raw material for attaining the NO at any time without the storage and via controlling the electric discharge condition, generates NO gas at most with least NO2 harmful gas to attain the low ratio of NO2 / NO. While the concentration of NO ranges from 0-200 ppm in the pulse frequency of 1-90 Hz. The invention comprises an air pump connected in series to the gas passage, a clean-dry air generating device, a flow counter, a pulse generate and control circuit, a arc discharge reactor, a particle filter film, a NO2 catalytic reduction conversion apparatus, a cooler, a particle filter film, a selective absorber and a gas monitor.

Description

technical field [0001] The invention belongs to disease treatment equipment, in particular to an inhalable nitric oxide gas supply system for a respiratory failure treatment instrument. Background technique [0002] Inhalation of nitric oxide (NO) is a new respiratory emergency technology that has been used clinically since the 1990s. It has been paid attention to because of its advantages of quick curative effect, non-invasiveness and high selectivity. At present, NO has been used more and more clinically as a new method for the treatment of acute respiratory failure syndrome, hypertension, some lung-related diseases, and lung diseases caused by altitude sickness. [0003] At present, the inhalable nitric oxide gas used in the clinical treatment of acute respiratory failure syndrome tends to inhale low-concentration NO (3-20ppm, the highest is not more than 80ppm), all of which are bottled nitrogen (N 2 ) is diluted with a high concentration of NO (500-800ppm) mixed gas. ...

AI Technical Summary

Problems solved by technology

[0007] (3) The high-pressure gas with high concentration of NO stored in steel cylinders daily may leak into the indoor air when not in use.

[0008] (4) Since the gas supply system for the treatment of NO respiratory failure uses high-pressure gas cylinders and decompression dilution equipment, it is very inconvenient to move, which makes this method not conducive to the use of some special occasions, such as outdoor first aid, plateau first aid, etc.

Therefore, the problem of complicated operation and inconvenient use has not been solved yet, because the high-pressure gas cylinder is used as the N 2 and O 2 Sources still require depressurization of dry air or high pressure nitrogen and oxygen; they do not address the high concentrations of NO produced by the arc discharge process itself 2 Harmful gas, and high NO 2 / (NO+NO 2 ) ratio (about 25%) problem, and the high concentration of NO 2 It will accelerate the deactivation or failure of catalysts and adsorbents; at the same time, the NO generation system and NO, NO 2 and O 2 The concentration measurement system is separated, and it is inconvenient to move and use

Images