Gerhardt H J, Wagner H
Acta Otolaryngol. 1987 May-Jun;103(5-6):628-31.
The extent of channel interactions using monopolar extrascalar stimulation probably limits the number of independently acting electrodes of a cochlear implant to three. Comparison of psychoacoustic and histopathological findings led to the conclusion that stimulation of the neurons in the upper basal and the second coil is of greatest benefit to the patient. By using a middle fossa approach, access to the upper basal coil and the second coil is possible without destruction of middle ear structures. The danger of infection is probably reduced. Using an additional external round-window electrode, a device providing three different stimulating electrodes can be applied.
使用单极标外刺激时通道相互作用的程度可能将人工耳蜗独立作用电极的数量限制为三个。心理声学和组织病理学结果的比较得出结论，刺激上基底和第二圈的神经元对患者益处最大。通过采用中颅窝入路，可以在不破坏中耳结构的情况下接近上基底圈和第二圈。感染风险可能会降低。使用一个额外的外耳道圆窗电极，可以应用一种提供三种不同刺激电极的装置。
