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通气功能测定有助于指导胸肺疾病的临床诊疗工作,但一般所用仪器都较复杂,价格昂贵。1959年 Wright 首先介绍了一种用金属制成的呼气峰速仪(Peak flow meter),这种仪器体积小,便于携带。1973年英国 Clement Clarke 公司仿照它的原
Ventilation assay can help guide the clinical diagnosis and treatment of chest and lung disease, but generally the instruments used are more complex and expensive. In 1959 Wright first introduced a peak flow meter made of metal that is small and portable. 1973 British Clement Clarke company modeled on its original