Field focusing and mapping in a visual prosthesis
    1.
    发明授权
    Field focusing and mapping in a visual prosthesis 有权
    视觉假体中的场聚焦和映射

    公开(公告)号:US08311635B2

    公开(公告)日:2012-11-13

    申请号:US12487498

    申请日:2009-06-18

    IPC分类号: A61F9/08

    摘要: The present invention is a system for mapping a high resolution image to a lower resolution electrode array and, by applying varying stimulus to neighboring electrodes, creating a perceived image greater in resolution than the electrode array. The invention is applicable to a wide range of neural stimulation devices including artificial vision and artificial hearing. By applying a sub-threshold stimulus to two neighboring electrodes where the sum of the stimuli is above the threshold of perception, a perception is created in neural tissue between the two electrodes. By adjusting the stimulus on neighboring electrodes, the location of stimulation can be altered. Further, noise can be applied to the stimulating electrode or its neighboring electrodes to reduce the threshold of stimulation.

    摘要翻译: 本发明是一种用于将高分辨率图像映射到较低分辨率电极阵列的系统,并且通过对相邻电极施加变化的刺激,产生比电极阵列更大的分辨率的感知图像。 本发明适用于包括人造视觉和人造听觉在内的各种神经刺激装置。 通过对刺激总和高于感知阈值的两个相邻电极施加亚阈值刺激,在两个电极之间的神经组织中产生感知。 通过调整相邻电极的刺激,可以改变刺激的位置。 此外,可以将刺激电极或其相邻电极施加噪声以降低刺激阈值。

    Pixel re-mapping for visual prosthesis
    2.
    发明授权
    Pixel re-mapping for visual prosthesis 有权
    视觉假体的像素重新映射

    公开(公告)号:US07962221B2

    公开(公告)日:2011-06-14

    申请号:US11493471

    申请日:2006-07-25

    IPC分类号: A61N1/36

    CPC分类号: A61N1/36046

    摘要: A method and apparatus for adjusting a visual image provided to a patient. In one embodiment, an image may be presented to the patient to obtain the patient's subjective perception of the image, and the patient may either manipulate the image to obtain a desired adjustment, or guide a clinician performing the adjustment. In another embodiment, the clinician may make objective observations of, for example, the position of an electrode array on the patient's retina, and make adjustments accordingly. The adjustment may be a spatial adjustment comprising a re-mapping performed to decreases image distortion resulting from differences in the patient's perception of stimulation of different areas of the retina. Such distortion may result from differences between the patient's perception of stimulation falling within the macula, and stimulation falling within the periphery surrounding the macula. The adjustment may also compensate for translations or rotations of the electrode array on the retina.

    摘要翻译: 一种用于调整提供给患者的视觉图像的方法和装置。 在一个实施例中,可以向患者呈现图像以获得患者对图像的主观感知,并且患者可以操纵图像以获得期望的调整,或指导进行调整的临床医师。 在另一个实施例中,临床医生可以对例如患者视网膜上的电极阵列的位置进行客观观察,并进行相应的调整。 调整可以是空间调整,其包括执行的重新映射,以减少由于患者对视网膜的不同区域的刺激的感知的差异而导致的图像失真。 这种变形可能由患者对黄斑内的刺激感知以及落在黄斑周围周边的刺激之间的差异引起。 该调整还可以补偿视网膜上的电极阵列的平移或旋转。

    Field Focusing and Mapping in a Visual Prosthesis
    3.
    发明申请
    Field Focusing and Mapping in a Visual Prosthesis 有权
    视觉假体中的场聚焦和绘图

    公开(公告)号:US20090259276A1

    公开(公告)日:2009-10-15

    申请号:US12487498

    申请日:2009-06-18

    IPC分类号: A61F9/08 A61N1/36

    摘要: The present invention is a system for mapping a high resolution image to a lower resolution electrode array and, by applying varying stimulus to neighboring electrodes, creating a perceived image greater in resolution than the electrode array. The invention is applicable to a wide range of neural stimulation devices including artificial vision and artificial hearing. By applying a sub-threshold stimulus to two neighboring electrodes where the sum of the stimuli is above the threshold of perception, a perception is created in neural tissue between the two electrodes. By adjusting the stimulus on neighboring electrodes, the location of stimulation can be altered. Further, noise can be applied to the stimulating electrode or its neighboring electrodes to reduce the threshold of stimulation.

    摘要翻译: 本发明是一种用于将高分辨率图像映射到较低分辨率电极阵列的系统,并且通过对相邻电极施加变化的刺激,产生比电极阵列更大的分辨率的感知图像。 本发明适用于包括人造视觉和人造听觉在内的各种神经刺激装置。 通过对刺激总和高于感知阈值的两个相邻电极施加亚阈值刺激,在两个电极之间的神经组织中产生感知。 通过调整相邻电极的刺激,可以改变刺激的位置。 此外,可以将刺激电极或其相邻电极施加噪声以降低刺激阈值。

    Pixel re-mapping for visual prosthesis

    公开(公告)号:US08014869B2

    公开(公告)日:2011-09-06

    申请号:US11493474

    申请日:2006-07-25

    IPC分类号: A61N1/36

    CPC分类号: A61N1/36046

    摘要: A method and apparatus for adjusting a visual image provided to a patient. In one embodiment, an image may be presented to the patient to obtain the patient's subjective perception of the image, and the patient may either manipulate the image to obtain a desired adjustment, or guide a clinician performing the adjustment. In another embodiment, the clinician may make objective observations of, for example, the position of an electrode array on the patient's retina, and make adjustments accordingly. The adjustment may be a spatial adjustment comprising a re-mapping performed to decreases image distortion resulting from differences in the patient's perception of stimulation of different areas of the retina. Such distortion may result from differences between the patient's perception of stimulation falling within the macula, and stimulation falling within the periphery surrounding the macula. The adjustment may also compensate for translations or rotations of the electrode array on the retina.

    Pixel re-mapping for visual prosthesis
    5.
    发明授权
    Pixel re-mapping for visual prosthesis 有权
    视觉假体的像素重新映射

    公开(公告)号:US07574263B2

    公开(公告)日:2009-08-11

    申请号:US10355791

    申请日:2003-01-31

    IPC分类号: A61N1/36

    CPC分类号: A61N1/36046

    摘要: A method and apparatus for adjusting a visual image provided to a patient. In one embodiment, an image may be presented to the patient to obtain the patient's subjective perception of the image, and the patient may either manipulate the image to obtain a desired adjustment, or guide a clinician performing the adjustment. In another embodiment, the clinician may make objective observations of, for example, the position of an electrode array on the patient's retina, and make adjustments accordingly. The adjustment may be a spatial adjustment comprising a re-mapping performed to decreases image distortion resulting from differences in the patient's perception of stimulation of different areas of the retina. Such distortion may result from differences between the patient's perception of stimulation falling within the macula, and stimulation falling within the periphery surrounding the macula. The adjustment may also compensate for translations or rotations of the electrode array on the retina.

    摘要翻译: 一种用于调整提供给患者的视觉图像的方法和装置。 在一个实施例中,可以向患者呈现图像以获得患者对图像的主观感知,并且患者可以操纵图像以获得期望的调整,或指导进行调整的临床医师。 在另一个实施例中,临床医生可以对例如患者视网膜上的电极阵列的位置进行客观观察,并进行相应的调整。 调整可以是空间调整,其包括执行的重新映射,以减少由于患者对视网膜的不同区域的刺激的感知的差异而导致的图像失真。 这种变形可能由患者对黄斑内的刺激感知以及落在黄斑周围周边的刺激之间的差异引起。 该调整还可以补偿视网膜上的电极阵列的平移或旋转。

    Field focusing and mapping in an electrode array
    6.
    发明授权
    Field focusing and mapping in an electrode array 有权
    电极阵列中的场聚焦和映射

    公开(公告)号:US07565202B2

    公开(公告)日:2009-07-21

    申请号:US10355793

    申请日:2003-01-31

    IPC分类号: A61N1/18

    摘要: The present invention is a system for mapping a high resolution image to a lower resolution electrode array and, by applying varying stimulus to neighboring electrodes, creating a perceived image greater in resolution than the electrode array. The invention is applicable to a wide range of neural stimulation devices including artificial vision and artificial hearing. By applying a sub-threshold stimulus to two neighboring electrodes where the sum of the stimuli is above the threshold of perception, a perception is created in neural tissue between the two electrodes. By adjusting the stimulus on neighboring electrodes, the location of stimulation can be altered. Further, noise can be applied to the stimulating electrode or its neighboring electrodes to reduce the threshold of stimulation.

    摘要翻译: 本发明是一种用于将高分辨率图像映射到较低分辨率电极阵列的系统,并且通过对相邻电极施加变化的刺激,产生比电极阵列更大的分辨率的感知图像。 本发明适用于包括人造视觉和人造听觉在内的各种神经刺激装置。 通过对刺激总和高于感知阈值的两个相邻电极施加亚阈值刺激,在两个电极之间的神经组织中产生感知。 通过调整相邻电极的刺激,可以改变刺激的位置。 此外,可以将刺激电极或其相邻电极施加噪声以降低刺激阈值。