反射式小鱼际脉搏血氧计的研制及人体实验校准  

Development of a reflective hypothenar pulse oximeter and its calibration in human hypoxia experiment

作　　者：郭涛[1,2] 曹征涛[2] 吕沙里[2] 帅万钧[3] 俞梦孙[2] 

机构地区：[1]北京航空航天大学生物与医学工程学院,北京100191 [2]中国人民解放军空军航空医学研究所,北京100142 [3]中国人民解放军总医院第一附属医院,北京100048

出　　处：《仪器仪表学报》2014年第1期30-35,共6页Chinese Journal of Scientific Instrument

基　　金：国家科技支撑计划项目(2011BAI02B08);军事医学计量科研专项(2011-JL2-025)资助项目

摘　　要：脉搏血氧计是用于无创监测人体动脉血氧饱和度的常用仪器,其中大多数采用透射式工作模式,因此只能应用于指端,耳垂等肢体末端部位。此类脉搏血氧计存在着长期监测时佩戴不舒适以及肢体末端低灌注情况下测量准确度低的问题。针对上述问题,基于反射式测量动脉血氧饱和度的原理研制了一种应用于手掌小鱼际处的手套式脉搏血氧计,并采用人体低氧实验的方式对光吸收比例系数与血氧饱和度的关系曲线进行了定标,实验结果表明该脉搏血氧计的准确度较高,可以用于动脉血氧饱和度的监测。Pulse oximeter is a common-used device to monitor the human body arterial oxygen saturation （ SaO2 ） non- invasively, which usually works in transmission mode. Therefore, this kind of oxymeters can only be applied to the pe- ripheral parts of the body, such as finger ends and earlobes, which leads to the discomfort in these areas in long term monitoring or inaccurate measurements in the situation of low perfusion. Aiming at these problems, a reflective pulse oximeter in the glove form for testing the arterial SaO2at the hypothenar was designed. A hypoxia experiment study on healthy participants was conducted to calibrate the relation curve of the red-to-infrared ahsorbance ratio （R） vs. the pulse oxygen saturation （ SpO2 ）. The experiment results show that this new pulse oximeter has high accuracy and can he used to monitor the arterial SaO2.

关 键 词：脉搏血氧计 反射式 小鱼际 校准 

分 类 号：R318.6[医药卫生—生物医学工程] TH77[医药卫生—基础医学]