Non contact ECG recording instrument for continuous cardiovascular monitoring

... IEEE-EMBS International Conference on Biomedical and Health Informatics. IEEE-EMBS International Conference on Biomedical and Health Informatics Pub Date : 2014-06-01 DOI:10.1109/BHI.2014.6864355

K. Muneer

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引用次数: 2

Abstract

The proposed non-contact ECG scheme presented in this article is based on sensing the variations in the electric potential close to the patient’s relevant body surface. In order to measure the potential, suitable capacitive electrodes are designed and developed. The signal coupled from the active electrodes are amplified, filtered, digitized using NI myDAQ and displayed in a Virtual Instrument developed in a LabVIEW environment. A prototype has been built, tested and non-contact ECG signals have been obtained from the body of many volunteers and verified with their conventional ECG. It has been noticed that the developed noncontact scheme provides reliable and very good signal quality without losing any important morphological information compared to a conventional ECG. In order to improve the signal quality, an operational amplifier with very good CMRR, active shielding provision for electrodes and a right leg driver circuit for reference electrode are used.

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用于心血管连续监测的非接触式心电记录仪

本文提出的非接触式心电图方案是基于感应靠近患者相关体表的电位变化。为了测量电势，设计和研制了合适的电容电极。来自有源电极的耦合信号通过NI myDAQ进行放大、滤波、数字化，并在LabVIEW环境下开发的虚拟仪器中显示。已经建立了一个原型，测试并从许多志愿者身上获得了非接触式心电信号，并与他们的传统心电进行了验证。人们注意到，与传统心电图相比，所开发的非接触方案提供了可靠且非常好的信号质量，而不会丢失任何重要的形态学信息。为了提高信号质量，采用了具有良好CMRR的运算放大器、电极主动屏蔽装置和参考电极右腿驱动电路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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... IEEE-EMBS International Conference on Biomedical and Health Informatics. IEEE-EMBS International Conference on Biomedical and Health Informatics

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