公开(公告)号：US20110093038A1

公开(公告)日：2011-04-21

申请号：US12979676

申请日：2010-12-28

申请人： Christopher van den HONERT

发明人： Christopher van den HONERT

IPC分类号： A61F11/04 ,  A61N1/36

CPC分类号： A61N1/36036 ,  A61N1/0541 ,  A61N1/323 ,  H04R25/305 ,  H04R25/606

摘要： A medical stimulation device such as a cochlear implant configured to provide stimulation of one or more spatially-restricted contiguous portion(s) of the spiral array of auditory nerve fibers in the cochlear (“discrete stimulation regions”). Each discrete stimulation region is defined by the constructive and/or destructive interference of stimulating and limiting signals simultaneously applied to electrode channels of an implanted electrode array, the stimulating and limiting signals being determined based upon transimpedance measurements of intracochlear electrode channels of the implanted electrode array representing specific spread functions of an individual recipient. The stimulating signal is preferably applied through a targeted electrode channel; that is, one or more successive electrodes which is/are adjacent to the discrete stimulation region. The targeted electrode channel is selected to represent a sound based on the outputs of a sound processor to stimulate neural activity in the discrete stimulation region to thereby cause a percept of the represented sound. The size of the discrete stimulation region is defined by the limiting signal(s) applied to electrode channel(s) other than the targeted electrode channel, and which negate(s) current spread which would otherwise occur in response to the stimulating signal.

摘要翻译： 医疗刺激装置，例如耳蜗植入物，被配置成在耳蜗（“离散刺激区域”）中提供听觉神经纤维螺旋阵列的一个或多个空间受限的连续部分的刺激。 每个离散刺激区域由同时施加到植入电极阵列的电极通道的刺激和限制信号的结构性和/或相消干扰限定，刺激和限制信号基于植入电极阵列的耳内电极通道的跨阻抗测量来确定 代表个人收件人的具体传播功能。 刺激信号优选通过目标电极通道施加; 即与离散刺激区域相邻的一个或多个连续电极。 选择目标电极通道以基于声音处理器的输出来表示声音，以刺激离散刺激区域中的神经活动，从而引起对所示声音的感知。 离散刺激区域的大小由施加到目标电极通道之外的电极通道的限制信号定义，并且否定当前的扩展，否则这些电流扩展响应于刺激信号而发生。