Albulbul Anas
Department of Research and Development, Global Innovative Medical Technologies (GIMT), Ottawa, ON K1G 5L1, Canada.
Bioengineering (Basel). 2016 Aug 24;3(3):20. doi: 10.3390/bioengineering3030020.
Biological signals such as electrocardiogram (ECG) and electromyography (EMG) that can be measured at home can reveal vital information about the patient's health. In today modern technology, the measured ECG or EMG signals at home can be monitored by medical staff from long distance through the use of internet. Biopotential electrodes are crucial in monitoring ECG, EMG, etc., signals. Applying the right type of electrode that lasts for a long time and assists in recording high signal quality is desirable in medical devices industry. Three types of electrodes (Silver/Silver Chloride (Ag/AgCl) electrodes, Orbital electrodes and Stainless steel electrodes) were tested to identify the most appropriate one for recording biological signals. The evaluation was based on determining the electrode circuit model components and having high capacitance value or high capacitor value of electrode circuit model (C) and low electrode-skin impedance value or low resistor value of electrode circuit model (R). The results revealed that Ag/AgCl is the best type of electrodes, followed by Orbital electrodes. Stainless steel electrodes had performed poorly. However, Orbital electrodes material can last longer than Ag/AgCl and hence perform similar to Ag/AgCl electrodes, which can be idle for monitoring biological signals at home without the need for medical staff to replace the electrodes in a short period of time.
诸如心电图（ECG）和肌电图（EMG）等可以在家中测量的生物信号能够揭示有关患者健康的重要信息。在当今的现代技术中，在家中测量的心电图或肌电图信号可以由医务人员通过互联网进行远程监测。生物电位电极在监测心电图、肌电图等信号方面至关重要。在医疗设备行业中，应用持续时间长且有助于记录高质量信号的合适类型电极是很有必要的。测试了三种类型的电极（银/氯化银（Ag/AgCl）电极、眼眶电极和不锈钢电极），以确定最适合记录生物信号的电极。评估基于确定电极电路模型组件以及具有高电容值或电极电路模型的高电容值（C）和低电极-皮肤阻抗值或电极电路模型的低电阻值（R）。结果表明，Ag/AgCl是最佳类型的电极，其次是眼眶电极。不锈钢电极表现不佳。然而，眼眶电极材料的使用寿命比Ag/AgCl更长，因此其性能与Ag/AgCl电极相似，可以在家中闲置用于监测生物信号，而无需医务人员在短时间内更换电极。
