Magnetic sensor for non-invasive detection of blood pulse and estimation of arterial compliance

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI:10.1109/IECBES.2010.5742222

J. Joseph, V. Jayashankar

{"title":"Magnetic sensor for non-invasive detection of blood pulse and estimation of arterial compliance","authors":"J. Joseph, V. Jayashankar","doi":"10.1109/IECBES.2010.5742222","DOIUrl":null,"url":null,"abstract":"The modulated magnetic signature based method has been recently suggested for non-invasive detection of blood pulse. Here we present our experience with the use of a Giant Magnetic Resistance (GMR) based sensor for non-invasive detection of a bio-rhythm. The influence of the biasing magnetic field on the amplitude and shape of the detected signal is presented. Guidelines for the design of a bio-medical transducer using the principle are also provided. The detected biorhythm is compared to other bio signals such as the blood flow velocity and arterial distension to gain insight into the physiological significance of the detected signal. The analysis shows that the magnetic sensor provides a signal that is strongly correlated to the blood volume in the neighbourhood of the sensor. Finally, the possibility of using the GMR based sensor for estimation of arterial compliance is investigated. Simultaneous measurements performed at two different sites on the body show that this sensor can be used to measure arterial pulse wave velocity which is a clinically accepted measure of global arterial stiffness.","PeriodicalId":241343,"journal":{"name":"2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)","volume":"06 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"18","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IECBES.2010.5742222","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 18

Abstract

The modulated magnetic signature based method has been recently suggested for non-invasive detection of blood pulse. Here we present our experience with the use of a Giant Magnetic Resistance (GMR) based sensor for non-invasive detection of a bio-rhythm. The influence of the biasing magnetic field on the amplitude and shape of the detected signal is presented. Guidelines for the design of a bio-medical transducer using the principle are also provided. The detected biorhythm is compared to other bio signals such as the blood flow velocity and arterial distension to gain insight into the physiological significance of the detected signal. The analysis shows that the magnetic sensor provides a signal that is strongly correlated to the blood volume in the neighbourhood of the sensor. Finally, the possibility of using the GMR based sensor for estimation of arterial compliance is investigated. Simultaneous measurements performed at two different sites on the body show that this sensor can be used to measure arterial pulse wave velocity which is a clinically accepted measure of global arterial stiffness.

查看原文本刊更多论文

用于无创检测血液脉搏和估计动脉顺应性的磁传感器

近年来提出了一种基于调制磁信号的无创脉搏检测方法。在这里，我们介绍了我们使用基于巨磁电阻(GMR)的传感器进行生物节律非侵入性检测的经验。给出了偏置磁场对检测信号幅度和形状的影响。还提供了使用该原理设计生物医学换能器的指南。将检测到的生物节律与其他生物信号(如血流速度和动脉扩张)进行比较，以了解检测到的信号的生理意义。分析表明，磁传感器提供的信号与传感器附近的血容量密切相关。最后，探讨了利用基于GMR的传感器估计动脉顺应性的可能性。在身体两个不同部位进行的同时测量表明，该传感器可用于测量动脉脉搏波速度，这是临床接受的全球动脉硬度测量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)

自引率

0.00%

发文量