[Development of a nitric oxide supply system for respiratory distress treatments].

College of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan,430074 Inhaled nitric oxide (INO) is increasingly being used in medical treatments of high blood pressure, acute respiratory distress syndrome (ARDS) and some diseases related with lungs. In this paper, in view of the problems in the current supply systems of NO for the treatments of respiratory failure, an INO system for clinical applications is designed based on experimental studies. Its continuous trial run shows that the outlet concentration of NO can be supplied constantly, and the ratio of NO2/NO is about 2.7%. So it satisfies the clinical requirements (NO2/NO<5%). In comparison of the conventional NO supply systems, this system has significant advantages, it can work so long as the air and the electricity exist.