干电极生物电位记录

Dry electrode bio-potential recordings.

作者信息

Gargiulo Gaetano, Bifulco Paolo, McEwan Alistair, Nasehi Tehrani Joubin, Calvo Rafael A, Romano Maria, Ruffo Mariano, Shephard Richard, Cesarelli Mario, Jin Craig, Mohamed Armin, van Schaik André

机构信息

School of Electrical and Information Engineering, The University of Sydney, NSW Australia.

出版信息

Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:6493-6. doi: 10.1109/IEMBS.2010.5627359.

DOI:10.1109/IEMBS.2010.5627359

PMID:21096726

Abstract

As wireless bio-medical long term monitoring moves towards personal monitoring it demands very high input impedance systems capable to extend the reading of bio-signal during the daily activities offering a kind of "stress free", convenient connection, with no need for skin preparation. In particular we highlight the development and broad applications of our own circuits for wearable bio-potential sensor systems enabled by the use of an FET based amplifier circuit with sufficiently high impedance to allow the use of passive dry electrodes which overcome the significant barrier of gel based contacts. In this paper we present the ability of dry electrodes in long term monitoring of ECG, EEG and fetal ECG.

摘要

随着无线生物医学长期监测朝着个人监测方向发展，它需要非常高输入阻抗的系统，这种系统能够在日常活动中扩展生物信号的读取，提供一种“无压力”、便捷的连接方式，无需进行皮肤预处理。特别是，我们着重介绍了我们自己开发的可穿戴生物电位传感器系统电路及其广泛应用。该系统采用基于场效应晶体管（FET）的具有足够高阻抗的放大电路，从而能够使用无源干电极，克服了基于凝胶的电极接触这一重大障碍。在本文中，我们展示了干电极在长期监测心电图（ECG）、脑电图（EEG）和胎儿心电图方面的能力。