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17 条记录 (耗时 0.031 秒)

    Variable pitch electrode array
    1.
    发明授权
    Variable pitch electrode array 有权

    公开(公告)号：US09089690B2

    公开(公告)日：2015-07-28

    申请号：US11485016

    申请日：2006-07-11

    申请人： Robert Greenberg ,  Richard Williamson ,  Mark Humayan

    发明人： Robert Greenberg ,  Richard Williamson ,  Mark Humayan

    IPC分类号： A61N1/05

    CPC分类号： A61N1/0543 ,  A61B2562/0209 ,  A61B2562/046 ,  A61N1/05 ,  A61N1/0531

    摘要： The present invention is an implantable electrode array having electrodes with variable pitch and variable size. Electrode arrays of the prior art provide electrodes with a common spacing and size. However, this is not how the human body is arranged. As an example, the retina has closely spaced retinal receptors near the fovea. Those receptors are spaced farther apart, farther away from the fovea. Further, the amount of electrical current required to stimulate the perception of light increases with distance from the fovea. Hence, larger electrodes are required to transfer the necessary current farther away from the fovea.

    Variable pitch electrode array
    2.
    发明申请
    Variable pitch electrode array 有权
    可变节距电极阵列

    公开(公告)号：US20090326623A1

    公开(公告)日：2009-12-31

    申请号：US11485016

    申请日：2006-07-11

    申请人： Robert Greenberg ,  Richard Williamson ,  Mark Humayan

    发明人： Robert Greenberg ,  Richard Williamson ,  Mark Humayan

    IPC分类号： A61N1/05

    CPC分类号： A61N1/0543 ,  A61B2562/0209 ,  A61B2562/046 ,  A61N1/05 ,  A61N1/0531

    摘要： The present invention is an implantable electrode array having electrodes with variable pitch and variable size. Electrode arrays of the prior art provide electrodes with a common spacing and size. However, this is not how the human body is arranged. As an example, the retina has closely spaced retinal receptors near the fovea. Those receptors are spaced farther apart, farther away from the fovea. Further, the amount of electrical current required to stimulate the perception of light increases with distance from the fovea. Hence, larger electrodes are required to transfer the necessary current farther away from the fovea.

    摘要翻译： 本发明是具有可变间距和可变尺寸的电极的可植入电极阵列。 现有技术的电极阵列提供具有公共间距和尺寸的电极。 但是，这不是人体的安排。 作为示例，视网膜在中央凹附近具有紧密间隔的视网膜受体。 那些受体间隔得更远，离中央凹更远。 此外，刺激光的感知所需的电流量随着距离中心凹的距离而增加。 因此，需要较大的电极将必要的电流远离中央凹。

    Variable pitch electrode array
    3.
    发明授权
    Variable pitch electrode array 有权

    公开(公告)号：US07149586B2

    公开(公告)日：2006-12-12

    申请号：US10112801

    申请日：2002-03-28

    申请人： Robert Greenberg ,  Richard Williamson ,  Mark Humayan

    发明人： Robert Greenberg ,  Richard Williamson ,  Mark Humayan

    IPC分类号： A61N1/00

    CPC分类号： A61N1/0543 ,  A61B2562/0209 ,  A61B2562/046 ,  A61N1/05 ,  A61N1/0531

    摘要： The present invention is an implantable electrode array having electrodes with variable pitch and variable size. Electrode arrays of the prior art provide electrodes with a common spacing and size. However, this is not how the human body is arranged. As an example, the retina has closely spaced retinal receptors near the fovea. Those receptors are spaced farther apart, farther away from the fovea. Further, the amount of electrical current required to stimulate the perception of light increases with distance from the fovea. Hence, larger electrodes are required to transfer the necessary current farther away from the fovea.

    Visual prosthesis for phosphene shape control
    4.
    发明授权
    Visual prosthesis for phosphene shape control 有权
    视觉假体用于磷光体形状控制

    公开(公告)号：US09254385B2

    公开(公告)日：2016-02-09

    申请号：US12466303

    申请日：2009-05-14

    申请人： Robert Greenberg ,  Mark Humayan ,  Devyani Nanduri ,  Matthew McMahon ,  James Weiland

    发明人： Robert Greenberg ,  Mark Humayan ,  Devyani Nanduri ,  Matthew McMahon ,  James Weiland

    IPC分类号： A61N1/36 ,  A61N1/05

    CPC分类号： A61N1/36046 ,  A61N1/0543

    摘要： The present invention is an improved method of stimulating visual neurons to create artificial vision. It has been found that varying current of visual stimulation can create varying percept brightness, varying percept size, and varying percept shape. By determining the attributes of predetermined current levels, and using those attributes to program a video processor, more accurate video preproduction can be obtained.The present invention also includes an electrode array having alternating large and small electrodes in rows at a 45 degree angle to horizontal in the visual field.

    摘要翻译： 本发明是一种刺激视觉神经元以创建人造视觉的改进方法。 已经发现，视觉刺激的变化的电流可以产生变化的感知亮度，变化的感知尺寸和变化的感知形状。 通过确定预定电流电平的属性，并使用这些属性对视频处理器进行编程，可以获得更准确的视频预制。 本发明还包括具有在视野中与水平方向成45度角的行的交替的大电极和小电极的电极阵列。