用于脑卒中检测仪的信号变换和隔离处理技术  

Signal Conversion and Isolation Processing Technology Used in the Cerebrovascular Stroke Detector

作　　者：刘增水[1] 陈瑜迪 裴兆波 冯军 LIU Zengshui;CHEN Yudi;PEI Zhaobo;FENG Jun(Shanghai Technical Institute of Electronics and Information,Shanghai,201411;Shanghai Shenzhou Meijing Health Technology Co.Ltd.,Shanghai,201316;Shanghai Sibo Mechanical&Electrical Co.Ltd.,Shanghai,200331)

机构地区：[1]上海电子信息职业技术学院,上海市201411 [2]上海神州美景健康科技有限公司,上海市201316 [3]上海思博机械电气有限公司,上海市200331

出　　处：《中国医疗器械杂志》2022年第2期141-146,共6页Chinese Journal of Medical Instrumentation

摘　　要：脑卒中检测仪使用多普勒传感器和压力传感器分别对颈动脉血液流速和血压信号进行检测,提出了多种信号变换和隔离处理技术,对传感器输出的信号进行处理和特征提取,最终获得了可用于评价脑血管血流动力学指标(CVHI)的有效信号输出波形,能反映血液流速和血压信号变化特征的声音输出信号,实现了检测仪的应用功能需求。By using Doppler sensor and pressure sensor,the cerebrovascular stroke detector can be used to measure the blood flow velocity and blood pressure of the carotid artery.In this study,a variety of signal conversion and isolation processing techniques are proposed for processing and feature extraction of the output signals from the sensors.Finally,effective signal output waveforms that can be used to evaluate the cerebrovascular hemodynamics index(CVHI) are obtained,and the sound signal outputs that can reflect the change characteristics of blood flow velocity and blood pressure signals are generated,which realizes the application functional requirements of the detector.

关 键 词：脑卒中 血液流速检测 血压检测 信号隔离 

分 类 号：TN713[电子电信—电路与系统]