基于光电容积脉搏波法血氧饱和度测量系统研究

摘要

血氧饱和度是人体一项重要的生理参数。目前，血氧饱和度检测方法分为有创血氧饱和度检测和基于光电容积脉搏波法的无创血氧饱和度检测。其中，基于光电容积脉搏波法的无创血氧饱和度研究模型采用人体光电容积脉搏波信号作为信息载体进行无创连续的血氧饱和度的检测。该文综述了基于血液容积波法无创血氧饱和度测量原理及测量系统；重点介绍了反射式血氧饱和度检测系统；并对影响血液容积波法无创血氧饱和度测量系统准确性的相关因素进行了归纳与总结。%The blood oxygen saturation is an important human physiological parameter .Currently, the blood oxygen saturation detection method is divided into the invasive measurement of blood oxygen satura -tion and noninvasive measurement of blood oxygen saturation based on photoplethysmography method .A-mong them , based on photoplethysmography method of noninvasive oxygen saturation research model a-dopts photoelectric volume pulse wave signals of the human body as an information carrier for noninvasive continuous blood oxygen saturation detection .This paper reviews noninvasive oxygen saturation based on photoplethysmography method measurement principle and measurement system , mainly introduces the re-flectance oxygen saturation detection system .And the related factors affecting the accuracy of the nonin-vasive blood oxygen saturation measurement system were concluded and summarized .