摘要
在血氧吸光模型的基础上提出了一种大范围血氧饱和度(SpO2)检测的非线性数据标定方法,解决了大范围血氧饱和度检测中的非线性问题,提高了血氧饱和度检测仪的适用范围和检测精度。利用CAN总线通讯和DSP高速数字信号处理等技术设计了无创脉搏式大范围血氧饱和度检测仪,在血氧饱和度范围为35%100%范围内检测仪的测量误差小于±3%,适用于临床、航天员生理信号检测等应用。文中详细介绍了检测仪电路组成及功能。
This paper proposes a nonlinear method of detecting the blood oxygen saturation （SpO2） in a wide range on the basis of spectrophotometry, solves the nonlinear problem in detecting SpO2 in a wide range, and improves the applicable range and detection precision. CAN bus communication and DSP fast digital signal processing are utilized in the design of a non-invasive pulse blood oxygen saturation （SpO2） monitor in a wide range, which has a measure error below 3% within a range of 35% - 100%, and is applicable for clinical monitoring and detection of cosmonauts＇ physiological signals. This oximeter＇ s components and their functions are also introduced in detail in the paper.
出处
《中国医疗器械杂志》
CAS
2008年第1期23-25,共3页
Chinese Journal of Medical Instrumentation
关键词
血氧饱和度
脉搏式
非线性
大范围
blood oxygen saturation, pulse, non-linear, wide-range
