中文摘要：

目的为帮助医疗仪器专业本科生掌握血氧饱和度（oxygen saturation，SpO2）检测设备的工作原理和结构，熟悉医疗仪器的设计步骤，在实验中能够实时获取血氧原始数据并且直观显示曲线和实测值，本文设计了一种血氧测试实验系统。方法该系统应用VC＋＋6．0 ActiveX，利用控件MSComm与血氧模块进行通信；软件界面控件能快捷控制下层血氧模块启动、数据采集、数据上传、参数转换和停机。结果本系统操作方便快捷，能实时采集原始数据并以EXCEL和文本格式存储，显示直观，既可做血氧检查，也可为研究者提供原始血氧数据。经过对照，本系统测试结果和其他血氧检测设备结果一致。结论该系统具有可编程性、开放性及功能扩展性，可供医疗仪器专业学生实验和课外科研使用。

英文摘要：

Objective This study designed one test system for blood oxygen saturation （SpO2） to help the undergraduates majoring in medical equipment to understand the operational principle and structures of SpO2test equipment, be familiar with medical equipment design procedures, and obtain real-time data as well as visual displayed original SpO2 curve and values in experiments. Methods VC ＋＋ 6.0 ActiveX and the communication between control module MScomm and SpO2 test module were used to design the system. This software interface could control the SpO2 test module start up, data collect, data upload, parameter transform and turn off quickly. Results This convenient system could make real-time collection of original data in EXCEL and text format, visual display, which might check SpO2 and provide the raw data for researchers. The test results of this oxygen saturation system were similar to those of other test equipments. Conclusions This proposed system is open, programmable, extensional in function and can be used in curricular experiment and extra-curricular research by undergraduates of medical equipment.