Research progress of medical nitric oxide production technology

Nitric oxide is a messenger molecule in the body, which is widely distributed in various tissues of living organisms and participates in regulating the physiological activities of cells. Inhalation of low concentrations of NO can selectively relax the pulmonary blood vessels, which can achieve good results and has been applied in clinical respiratory emergency treatment such as pulmonary hypertension, neonatal hypoxic respiratory failure, acute respiratory distress syndrome (ARDS), etc. At present, in addition to the clinical use of chemical methods to produce NO gas (storage in cylinders), NO can also be generated by discharge. Among them, the pulsed arc discharge can realize the preparation of NO at any time and solve the problems of decompression and storage of conventional NO gas supply. In this paper, the clinical application of NO, discharge technology, and removal methods of nitrogen dioxide (NO2) were reviewed. Key words: Nitric oxide; Pulse discharge; Plasma; Preparation; Catalyticreduction