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植入者来说，听力在一段时间后会下降。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，还发生了这种效应，目前尚不能明确识别。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种现象。应用项目的目的是调查在什么情况下发生的铂电极的溶解。要识别和限制电极溶解中涉及的因素，以便获得稳定的长期刺激参数。

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.