连续血液净化系统中血压实时监测模块的研究  

Research on the Real-time Blood Pressure Monitoring Module of the Continuous Blood Purification System

作　　者：刘永峰[1,2,3] 钟君[1] 成贤锴[1] 于涌[1] 熊大曦[1] 

机构地区：[1]中国科学院苏州生物医学工程技术研究所,江苏苏州215163 [2]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [3]中国科学院大学,北京100049

出　　处：《压电与声光》2016年第2期231-234,共4页Piezoelectrics & Acoustooptics

基　　金：苏州市科技计划"体外循环生命支持系统关键技术与产品研发"基金资助项目(ZXY2013024)

摘　　要：连续血液净化系统中血压值是确定患者病情的重要参数,因此设计了一种非侵入式的血压实时监测模块。该监测模块采用气压传感器作为检测血压的测量元件,低功耗的单片机MSP430F449作为处理核心,高精度的AD7714作为模数转换模块,实现了对循环管路中血压的非侵入式实时测量。实验结果表明,该血压实时监测模块能实现0.12%精度,输入、输出具有较好的线性关系,能准确反映血压的实时变化。The blood pressure value is an important parameter to determine the patient＇s condition,thus a realtime non-invasive monitoring module for the continuous blood purification system application is designed in this work.To achieve a non-invasive real-time measurement of blood pressure in the circulation line,the monitoring module uses the gas pressure sensor as the detection of blood pressure,low-power microcontroller MSP430F449 as the processing core and high-precision AD7714 as the analog-digital converter module.The experimental results show that the real-time blood pressure monitoring module can achieve accuracy of 0.12%,the input and output has good linear relationship,and can reflect the accurate changes of blood pressure in real-time.

关 键 词：连续血液净化系统 实时监测 血压 低功耗 非侵入式 

分 类 号：TP216.1[自动化与计算机技术—检测技术与自动化装置]