新型反射式体外循环血氧饱和度监测仪的设计(英文)

The design of a new reflecting oximeter for extracorporeal circula tion in heart surgery

反射式血氧饱和度监测仪利用血液对光辐射吸收(或反射)强度成固定测量关系的原理反映心外科体外循环下的血氧饱和度。由转换器、驱动器、中央处理模块及液晶显示模块组成。由一分三光缆连接反射探头、核心后处理系统及数字显示系统。它成功地解决了饱和度监测仪的灵敏度和稳定性的问题;具有结构简单、成本低廉、性能可靠等优点。

A reflecting oximeter,based on the principle that blood optical absorption(or reflection)intensity is in fixed relation with blood oxygen saturation,measures the blood oxygen saturation under extracorporeal circulation in heart surgery. It consists of a converter,a driver and a central processor module,as well as a liquid- crystal display module.A one- to- three optical- fiber cable connect s the reflecting probe,the central background processing system and the digital display system.It successfully resolves the problems in sensitivity and stabilit y of the oximeter.It has such advantages as simple in structure,low in costs,and reliable in performance,etc.