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    Retinal stimulator
    3.
    发明授权
    Retinal stimulator 失效
    视网膜刺激物

    公开(公告)号：US06458157B1

    公开(公告)日：2002-10-01

    申请号：US09123995

    申请日：1998-07-29

    申请人： Gregg Jørgen Suaning

    发明人： Gregg Jørgen Suaning

    IPC分类号： A61F216

    CPC分类号： A61N1/0543 ,  A61F2/14 ,  A61N1/36 ,  A61N1/36046

    摘要： An apparatus facilitating the delivery of electrical stimulation to physiologically excitable retinal nerve cells includes: (a), a receiver/decoder/stimulator comprising a semiconductor integrated circuit and other components hermetically sealed within a capsule, implanted and fixed within the eye of the patient such that it may receive power, and decode information from (b), an externally worn image processor/encoder/transmitter comprising an image detector, an image processor capable of translating the image into an array of discreet pixels of varying intensity, encoding the pixel information into a series of discreet data bursts representing the chosen current amplitude, pulse duration, stimulating electrode or electrodes, and reference electrode or electrodes, and transmitting this data to the receiver/decoder/stimulator through a tuned, inductive communication link such that the system may deliver controlled, charge balanced, diphasic, constant current stimulus pulses to (c), discreet metallic electrodes on a flexible, multiple site electrode array implanted on, near or under the surface of the retina. The apparatus provides for flexibility in the external image processing system such that future advancements in processing techniques shall not require revision surgery or modification to the implanted receiver/decoder/stimulator. Safeguards to protect the patient from the delivery of inappropriate stimulus are incorporated into the apparatus, and a method of external collection of diagnostic data from the implanted receiver/decoder/stimulator is described.

    摘要翻译： 促进向生理上可兴奋的视网膜神经细胞递送电刺激的装置包括：（a）包含半导体集成电路的接收器/解码器/刺激器和密封在胶囊内的其它部件，植入和固定在患者的眼睛内，如 它可以接收电力，并从（b）解码信息，外部佩戴的图像处理器/编码器/发射器，包括图像检测器，能够将图像转换成不同强度的离散像素的阵列的图像处理器，对像素信息进行编码 变成一系列表示所选择的当前幅度，脉冲持续时间，刺激电极或参考电极或参考电极的谨慎数据脉冲串，并且通过调谐的感应通信链路将该数据发送到接收器/解码器/刺激器，使得系统可以 提供受控的电荷平衡，双相，恒流刺激脉冲到（c），光盘 在植入在视网膜表面附近或下方的柔性多位点电极阵列上复制金属电极。 该设备在外部图像处理系统中提供灵活性，使得处理技术的未来进步不需要修改手术或修改植入的接收器/解码器/刺激器。 描述了保护患者免受不适当刺激的传递的保护措施，并且描述了从植入的接收器/解码器/刺激器外部收集诊断数据的方法。