人工耳蜗 (cochlearimplant,CI)模拟人的耳蜗功能 ,绕过无效的毛细胞 ,直接刺激残余的螺旋神经节细胞 ,产生听觉 ,可使重度、极重度聋患者回到有声世界。CI植入术手术径路通常是面隐窝径路 ,去除圆窗龛前缘 ,将电极由圆窗植入鼓阶。常用的植入装置有 3种 :Nucleus2 4、MedEl40 The cochlear implant (CI) simulates the human cochlear function, bypasses the invalid hair cells and directly stimulates the residual spiral ganglion cells to produce auditory signals, which can return the severely and severely deaf patients to the vocal world. The CI implant surgery approach is usually a facial recess approach, removing the leading edge of the round window niche and implanting the electrode from the round window into the scala tympani. There are three commonly used implanted devices: Nucleus2 4, MedEl40