The concentration of end-tidal carbon dioxide is one of the important indicators for evaluating whether the human respiratory system is normal. Accurately detecting of end-tidal carbon dioxide is of great significance in clinical practice. With the continuous promotion of the localization of end-tidal carbon dioxide monitoring technology, its application in clinical practice in China has become increasingly widespread in recent years. The study is based on the non-dispersive infrared method and comprehensively elaborates on the detection principle, gas sampling methods, key technologies, and technological progress of end-tidal carbon dioxide detection technology. It comprehensively introduces the current development status of this technology and provides reference for application promotion and further improvement.
呼气末二氧化碳浓度是评价人体呼吸系统是否正常的重要指标之一，实现呼气末二氧化碳的精确检测对临床实践具有重要意义。随着呼气末二氧化碳检测技术的国产化不断推进，近些年在国内临床的应用越来越广泛。该研究基于非分散红外法，对呼气末二氧化碳检测技术的检测原理、气体采样方法、技术关键、技术进展等进行综合阐述，较为全面地介绍了该技术目前的发展状况，为应用推广和改进提供参考。.
Keywords: end-tidal carbon dioxide; gas detection; non-dispersive infrared; technical progress.