Crosby P A, Seligman P M, Patrick J F, Kuzma J A, Money D K, Ridler J, Dowell R
Acta Otolaryngol Suppl. 1984;411:111-4.
The Nucleus Multi-channel Implantable Hearing Prosthesis was developed in conjunction with the University of Melbourne. A 22 channel flexible electrode array is inserted into the cochlea through a round window opening. A cable leads from the electrode array to a demountable connector mounted on the Receiver-Stimulator unit (RSU). A custom CMOS integrated circuit is mounted inside the hermetically sealed titanium and ceramic RSU which is encased in silicone rubber and measures 34.5 mm diameter and 10.5 mm thick. Biphasic current pulse stimuli can be delivered to any selected electrode pairs at rates in excess of 1 kHz. A pocket-sized speech processor extracts spectral information from the incoming acoustic signal, and encodes stimulus information onto the single RF power/data signal transmitted to the RSU through the skin. The Speech Processor includes electronic memory circuits which are programmed with the information mapping acoustic parameters to stimulation parameters for each electrode for each patient. This MAP is established as a result of psychophysical experiments performed by the audiologist using the Diagnostic and Programming System based on a customized microcomputer.
核多通道植入式听力假体是与墨尔本大学联合开发的。一个22通道的柔性电极阵列通过圆窗开口插入耳蜗。一根电缆从电极阵列通向安装在接收器-刺激器单元（RSU）上的可拆卸连接器。一个定制的CMOS集成电路安装在密封的钛和陶瓷RSU内部，该RSU被包裹在硅橡胶中，直径为34.5毫米，厚度为10.5毫米。双相电流脉冲刺激可以以超过1kHz的速率传送到任何选定的电极对。一个袖珍型语音处理器从传入的声学信号中提取频谱信息，并将刺激信息编码到通过皮肤传输到RSU的单个射频功率/数据信号上。语音处理器包括电子存储电路，这些电路用每个患者每个电极的将声学参数映射到刺激参数的信息进行编程。这个映射是听力学家使用基于定制微型计算机的诊断和编程系统进行心理物理学实验的结果。
