• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International IEEE/EMBS Conference on Neural Engineering >Modeling the effects of electrode recessing on electrochemical safety in cochlear implant electrodes
【24h】

Modeling the effects of electrode recessing on electrochemical safety in cochlear implant electrodes

机译：建模电极凹陷对耳蜗植入电极电化学安全的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Electrodes in neural prostheses may trigger stimulation-induced tissue damage if the magnitude of the stimulation exceeds safe levels. Consequently, the concentration of current densities at the periphery of planar electrodes has been studied extensively, and the use of electrode recesses has been suggested as a method of reducing such effects. Cochlear implant electrodes have significant geometrical differences from the planar electrodes used in earlier studies. We have previously used the finite element method to solve for current distributions on half-band cochlear implant electrodes. In this paper, we utilize similar models to investigate the effect of recessing half-band cochlear implant electrodes on their electrochemical safety. It was found that when recess depths were increased, the distribution of the electrodes became more uniform by up to 75.5%. The maximum reduction in irreversible faradaic reactions was found to be only 6.5% at the maximum recess depth, however other factors may contribute to the occurrence of irreversible faradaic reactions.
机译：神经假体中的电极可以触发刺激诱导的组织损伤，如果刺激的幅度超过安全水平。因此，已经广泛研究了平面电极周边的电流密度的浓度，并且已经建议使用电极凹槽作为降低这些效果的方法。耳蜗植入物电极具有与早期研究中使用的平面电极的显着几何差异。我们以前使用有限元方法来解决半带耳蜗植入电极上的电流分布。在本文中，我们利用类似的模型来研究凹陷的半带耳蜗植入物电极对其电化学安全的影响。发现当凹陷深度增加时，电极的分布变得更加均匀，高达75.5％。发现不可逆的游行反应的最大降低仅为最大休息深度仅为6.5％，但其他因素可能导致不可逆的游览反应的发生。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号