一氧化氮吸入可选择性降低肺动脉高压，但同时人们也注意到ＮＯ及ＮＯ２的毒副作用，为此研制了ＮＯ吸入装置，并测定了治疗气中ＮＯ浓度的稳定性（连续工作三天，ＮＯ浓度波动少于４％）和二氧化氮生成量（当ＮＯ浓度为１００ｐｐｍ，氧浓度为７５％，ＮＯ２生成量少于４ｐｐｍ），并对尾气进行净化，以满足治疗气的需要及环境保护的要求。

Inhalation of nitric oxide may be used to treat acute hypoxic pulmonary hypertension. But inhaled nitric oxide and nitric dioxide might result in adverse and side effects. So we disigned this system, tested the stability of NO and production (when the concentraction of NO was 100ppm, the concentration of oxygen was 75%, the production of NO was less than 4ppm) of NO 2 and exhaled gas was scavenged to meet the requirements of inhaled nitric oxide and protection of environmen( for 3 days continuously the vari...