Criteria for the selection of materials for implanted electrodes
Criteria for the selection of materials for implanted electrodes
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DOI：
10.1114/1.1581292
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发表时间：
2003-07-01
影响因子：
3.8
通讯作者：
Roeder, R
中科院分区：
文献类型：
--
作者：
Geddes, LA;Roeder, R
选择植入电极材料时，必须考虑四个标准：（1）组织反应，（2）过敏反应，（3）电极-组织阻抗和（4）射线可见性。本文讨论了这四个标准，并确定了材料，是这种电极的最佳候选人。对于与组织欧姆接触的电极：金、铂、铂铱、钨和钽是很好的候选材料。优选的绝缘材料是聚酰亚胺和玻璃。刺激器输出电路的特点和电极分解的双向波形的重要性进行了讨论。本文最后分析了电容记录和刺激电极的分析、设计标准以及特殊性能和材料。(C)2003生物医学工程学会。
There are four criteria that must be considered when choosing material for an implanted electrode: (1) tissue response, (2) allergic response, (3) electrode-tissue impedance, and (4) radiographic visibility. This paper discusses these four criteria and identifies the materials that are the best candidates for such electrodes. For electrodes that make ohmic contact with tissues: gold, platinum, platinum-iridium, tungsten, and tantalum are good candidates. The preferred insulating materials are polyimide and glass. The characteristics of stimulator output circuits and the importance of the bidirectional waveform in relation to electrode decomposition are discussed. The paper concludes with an analysis, the design criteria, and the special properties and materials for capacitive recording and stimulating electrodes. (C) 2003 Biomedical Engineering Society.