PROCESS FOR CATHODIC PROTECTION OF ELECTRODE MATERIALS
    4.
    发明申请
    PROCESS FOR CATHODIC PROTECTION OF ELECTRODE MATERIALS 审中-公开
    电极材料阴极保护工艺

    公开(公告)号:WO2008013879A2

    公开(公告)日:2008-01-31

    申请号:PCT/US2007/016783

    申请日:2007-07-26

    CPC classification number: C23F13/00 A61N1/05 A61N1/08 C23F13/02

    Abstract: The present invention relates to a process for cathodic protection of electrode or electrode materials wherein negative bias is applied on the electrode, the negative bias is obtained by asymmetric current pulse. The asymmetric current pulse is obtained by performing negative phase with higher amplitude. The asymmetric current pulse is obtained by performing negative phase with wider pulse width than that of the anodic phase. The asymmetric current pulse is obtained by performing negative phase with higher amplitude and with wider pulse width than that of the anodic phase. The present invention further relates to a process for cathodic protection of electrode or electrode materials, wherein negative bias is applied on the electrode, wherein the negative bias is obtained by asymmetric current pulse, wherein the asymmetric current pulse is obtained by performing negative phase with wider pulse width than that of the anodic phase. The wider pulse width is obtained by pulse trains.

    Abstract translation: 本发明涉及一种用于对电极或电极材料进行阴极保护的方法,其中对电极施加负偏压,通过不对称电流脉冲获得负偏压。 通过执行具有较高振幅的负相来获得非对称电流脉冲。 通过执行具有比阳极相宽的脉冲宽度的负相来获得非对称电流脉冲。 通过执行具有更高幅度和宽于脉冲宽度的阳极相的负相位获得非对称电流脉冲。 本发明还涉及一种用于对电极或电极材料进行阴极保护的方法,其中在电极上施加负偏压,其中通过不对称电流脉冲获得负偏压,其中非对称电流脉冲通过执行具有更宽的负相 脉冲宽度大于阳极相。 通过脉冲串获得更宽的脉冲宽度。

    ELECTRODE WITH INCREASED STABILITY AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:WO2007149465A3

    公开(公告)日:2007-12-27

    申请号:PCT/US2007/014332

    申请日:2007-06-19

    Abstract: The present invention provides an implantable electrode with increased stability having a clustered structure wherein the surface of the electrode is covered with a material comprising openings which are filled with sticks or posts. The present invention provides an implantable electrode with increased stability wherein the surface is of the electrode comprises mesh grids which are filled with sticks which are filed with a conducting or insulating material. The present invention provides a method of manufacturing an electrode with increased stability, comprising: depositing a metal layer on an base layer; applying photoresist layer on the metal layer; patterning the photoresist layer providing openings; electroplating the openings with metal; removing the photoresist layer leaving spaces; and filling the spaces with polymer. The present invention provides a method of manufacturing an electrode with increased stability, comprising: depositing a metal layer on an base layer; applying a polymer layer on the metal layer; applying photoresist layer on the polymer layer; patterning the photoresist layer providing openings; electroplating the openings with metal; and removing the photoresist layer.

    DOWNLOADABLE FILTERS FOR A VISUAL PROSTHESIS

    公开(公告)号:WO2007035743A3

    公开(公告)日:2007-03-29

    申请号:PCT/US2006/036501

    申请日:2006-09-18

    Abstract: The present invention is a method of neural stimulation and more specifically an improved method of providing flexible video/image possessing in a visual prosthesis by providing downloadable video filters. In a visual prosthesis, the input video image will, for the foreseeable future, be higher resolution than the output stimulation of the retina, optic nerve or visual cortex. This is due to limits of electrode array technology and the rapid advancement of video camera technology. It is therefore, advantageous to apply video processing algorithms (filters) to help provide the most useful information to the lower resolution electrode array. Different filters are more effective in different environments and for different subjects. Furthermore, filters will continue to improve over time. Examples of situation dependent filters include reverse image, contrast increasing, edge detection, segmentation using chromatic information and motion detection. Filters loaded in the video processing unit may be selected dynamically to suit the situation or the user's preference. It is therefore advantageous to provide flexibility in applying filters. However, it is also important to maintain the security necessary for a medical device. The present invention provides for an external (not implanted) video processing unit with downloadable video filters.

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