Cochlea-Implantation: Evaluation of the dissolution of platinum-electrodes and development of stable electrodes-parameter for neural stimulation

对于一小部分人工耳蜗受者，听力在一段不确定的时间后下降。这可以通过增加流经受影响电极的电流来纠正。除了正常的术后结缔组织形成外，这种影响还发生，目前还不能清楚地确定。随着电流的增加，电解的危险增加，这将意味着电极的溶解。迄今为止，所进行的研究表明了这一现象。申请项目的目的是研究在何种情况下铂电极会发生溶解。为了获得稳定的长期刺激参数，需要确定和限制与电极溶解有关的因素。

For small percentage of cochlear implant recipients, the ability to hear decreases after an undefined period of time. This can be corrected by increasing the electrical current, flowing through the affected electrodes. The effect occurs in addition to the normal post-operative formation of connective tissue and could not be clearly identified as yet. With increasing current, the danger of electrolysis rises, which would mean dissolution of the electrodes. To date, the performed studies indicate to this phenomenon. The aim of the applied project is to investigate under which circumstances dissolution of the platinum electrodes occurs. The factors involved in the dissolution of the electrodes are to be identified and limited in order to obtain stable long-term stimulation parameters.