Flexible polymeric dry electrodes for the long-term monitoring of ECG
Flexible polymeric dry electrodes for the long-term monitoring of ECG
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DOI：
10.1016/j.sna.2007.11.019
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发表时间：
2008-05-16
影响因子：
4.6
通讯作者：
Lee, Sang-Hoon
中科院分区：
文献类型：
--
作者：
Baek, Ju-Yeoul;An, Jin-Hee;Lee, Sang-Hoon
在本文中，我们提出了一种新型的聚合物干电极，（1）以支持电极与皮肤接触的方式改变其形状，（2）不会引起皮肤刺激或过敏反应。对于电极的聚合物基底，我们已经使用弹性体聚（二甲基硅氧烷），其已知是廉价的、生物相容的、并且适合于微成型，并且具有优异的透气性和透水性。我们已经建立了一种工艺，通过该工艺，可以在PDMS衬底上存款金属层，化学蚀刻电极图案并具有良好的分辨率，并封装电极，使得其易于佩戴在前臂上。我们根据频率的变化测量了阻抗，并与Ag/AgCl电极的结果进行了比较。之后，我们测量了ECG信号，并研究了运动引起的可能伪影。为了长期监测的可行性，我们在7天的ECG监测后检查了表面电极对皮肤的影响。总之，我们的基于PDMS的干电极以相对较好的保真度测量ECG信号，但在长期测试后显示出更好的皮肤相容性。我们期望我们的基于PDMS的干电极的生产方法将广泛适用于无处不在的生物信号监测领域。(c)2007 Elsevier B. V.保留所有权利。
In this paper, we present a novel polymeric dry electrode that (1) changes its shape in a way that supports the electrode's contact with the skin and (2) that does not cause skin irritations or allergic reactions. For a polymeric substrate of electrodes, we have used the elastomer poly(dimethylsiloxane), which is known to be inexpensive, biocompatible, and amenable to micro-molding, and to have excellent gas and water permeability. We have established a process by which one can deposit a metal layer on the PDMS substrate, etch the electrode patterns chemically and with good resolution, and package the electrode so that it is easily wearable on the forearm. We measured the impedance according to the frequency change and compared the results with those of Ag/AgCl electrodes. Afterward, we measured the ECG signal and investigated possible artifacts caused by motion. For the feasibility of long-term monitoring, we examined the influence of surface electrodes on the skin after 7 days of ECG monitoring. In conclusion, our PDMS-based dry electrode measured the ECG signals with comparatively good fidelity, but showed better skin compatibility after long-term tests. We expect that our method for the production of PDMS-based dry electrodes will be broadly applicable to the field of ubiquitous biosignal monitoring. (c) 2007 Elsevier B.V. All rights reserved.