【摘要】 本文阐述了诺尔康26电极人工耳蜗的设计理念、系统特点及技术验证。该人工耳蜗具有先进的数字信号处理技术和多精度的4个电流源,不仅与感知能力匹配,而且可进行间隔或同时刺激。此外,本文描述了60例诺尔康人工耳蜗植入者3年的评估数据。客观测试显示,电极阻抗值在使用设备1个月后降低,此后持续保持稳定,直到2年时略有上升。主观响度测试显示,电刺激阈值相对稳定,最大舒适阈在3年中逐渐提高。汉语句子识别率从术前的0%增长至开机6个月时约80%的水平。间接和直接对比研究均显示诺尔康人工耳蜗与其他同类人工耳蜗产品使用效果相当。更多还原

【Abstract】 The article describes design philosophy,system specification,and technical verification of the Nurotron device,which includes advanced digital signal processing and 4 current sources with multiple amplitude resolutions that not only are compatible with perceptual capability but also allow interleaved or simultaneous stimulation.The article also presents 3-year longitudinal evaluation data from 60 human subjects who have received the Nurotron device.The objective measures show that electrode impedance decreased within the first month of device use,but was stable until a slight increase at the end of two years.The subjective loudness measures show that electric stimulation threshold was stable while the maximal comfort level increased over the 3 years.Mandarin sentence recognition increased from the pre-surgical 0%-correct score to a plateau of about 80%correct with 6-month use of the device.Both indirect and direct comparisons indicate indistinguishable performance differences between the Nurotron system and other commercially available devices.更多还原