基于脉搏波传导时间的连续血压测量系统

发布时间：2018-01-06 06:12

本文关键词：基于脉搏波传导时间的连续血压测量系统　出处：《生物医学工程研究》2016年01期 　论文类型：期刊论文

【摘要】：针对现有连续无创血压测量系统采样频率和计算精度较低的问题,我们设计了一套基于STM32F103T4和DSP TMS320C5535芯片的双核血压测量系统。利用STM32和DSP芯片在信号高速采样及高精度运算上的优势,实现了对脉搏波信号的高速采样和计算,改善了连续无创血压测量方法的精度。实验测量30名随机受试者,其医用水银血压计和本系统测量结果的差值均符合美国医疗仪器促进协会(AAMI)标准要求,通过Bland-Altman差值法对两种方法进行一致性检验分析,结果表明两者具有很好的一致性。本研究设计的连续无创血压测量系统可初步在家庭和临床医疗方面进行人体血压的动态跟踪测量。
[Abstract]:In order to solve the problem of low sampling frequency and calculation accuracy of the existing continuous noninvasive blood pressure measurement system. We designed a system based on STM32F103T4 and DSP. The dual-core blood pressure measurement system of TMS320C5535 chip. The advantage of STM32 and DSP chip in high speed sampling and high precision operation is used. The high speed sampling and calculation of pulse wave signal is realized, and the accuracy of continuous noninvasive blood pressure measurement method is improved. The difference between the medical mercury sphygmomanometer and the measured results of the system is in accordance with the Amim standard of the American Association for the Promotion of Medical Instruments. The consistency of the two methods is analyzed by Bland-Altman difference method. The results show that there is a good agreement between the two methods. The continuous noninvasive blood pressure measurement system designed in this study can be used to measure blood pressure dynamically in family and clinical medicine.
【作者单位】：西南石油大学机电工程学院;第三军医大学新桥医院脑外科;
【基金】：西南石油大学研究生创新基金资助项目(CXJJ2015022)
【分类号】：TH776;R443.5
【正文快照】： 1引言血压作为人体重要生理参数,能反映人体心脏与血管的功能状况,是临床疾病诊断与治疗效果评估方面的重要依据之一[1]。血压测量方法可分为直接测量法和间接测量法两类,其中直接测量法也称作动脉插管法,可实现连续血压测量,测量结果最为准确,被认定为血压测量的“金标准”,

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