Retinal prosthesis with a new configuration
    31.
    发明授权
    Retinal prosthesis with a new configuration 有权
    视网膜假体具有新配置

    公开(公告)号:US08510939B2

    公开(公告)日:2013-08-20

    申请号:US11924696

    申请日:2007-10-26

    Abstract: Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, and cortical stimulation, and many related purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. By applying the right amount of heat to a completed array, a curve can be induced. With a thermoplastic polymer it may be further advantageous to repeatedly heat the flexible circuit in multiple molds, each with a decreasing radius. Further, it is advantageous to add material along the edges. It is further advantageous to provide a fold or twist in the flexible circuit array. Additional material may be added inside and outside the fold to promote a good seal with tissue.

    Abstract translation: 聚合物材料可用作神经刺激的电极阵列体。 它们特别有用于视网膜刺激以产生人造视觉,耳蜗刺激以产生人造听觉和皮质刺激以及许多相关目的。 通过电极阵列对视网膜或其他神经组织施加的压力是至关重要的。 太小的压力会导致电阻增加以及电场分散。 太大的压力可能会阻止血液流动。 通常的柔性电路制造技术通常需要使柔性电路电极阵列平坦。 由于神经组织几乎从不平坦,平面阵列必然会施加不均匀的压力。 此外,柔性电路聚合物阵列的边缘可以是尖锐的并切割精细的神经组织。 通过将适量的热应用于完整的阵列,可以引起曲线。 对于热塑性聚合物,可以进一步有利的是在多个模具中反复加热柔性电路,每个模具具有减小的半径。 此外,沿着边缘添加材料是有利的。 在柔性电路阵列中提供折叠或扭曲是更有利的。 可以在折叠内部和外部添加附加材料以促进与组织的良好密封。

    Flexible circuit electrode array device and a method for backside processing of a flexible circuit electrode device
    35.
    发明授权
    Flexible circuit electrode array device and a method for backside processing of a flexible circuit electrode device 有权
    柔性电路电极阵列器件及柔性电路电极器件的背面处理方法

    公开(公告)号:US08145322B1

    公开(公告)日:2012-03-27

    申请号:US12177038

    申请日:2008-07-21

    CPC classification number: A61N1/05 A61N1/0541 A61N1/0543 B23K26/361 B23K26/362

    Abstract: The invention involves a flexible circuit electrode array device comprising: a polymer layer; wherein the polymer layer includes one or more metal traces, an electrode array; one or more bond pads; and the electrode array is located on the opposite side of the polymer layer.The invention further involves a method for backside processing of a flexible circuit electrode device, comprising: applying polymer film on a substrate; processing the front side; releasing the polymer film from substrate; flipping over the polymer film and fixing it onto the substrate; processing the backside; and final releasing of the polymer film from the substrate.The invention further involves a method for backside processing of a flexible circuit electrode device, comprising: processing the front side without releasing the polymer; processing the backside by sacrificial substrate method, or by laser drilling method; and releasing the polymer film from the substrate.

    Abstract translation: 本发明涉及一种柔性电路电极阵列器件,包括:聚合物层; 其中所述聚合物层包括一个或多个金属迹线,电极阵列; 一个或多个接合垫; 并且电极阵列位于聚合物层的相对侧上。 本发明还涉及一种用于柔性电路电极器件的背面处理的方法,包括:在基底上施加聚合物膜; 正面加工; 从基材中释放聚合物膜; 翻转在聚合物膜上并将其固定在基底上; 处理背面; 并从基底中最终释放聚合物膜。 本发明还涉及一种用于柔性电路电极器件的背面处理的方法,包括:处理前侧而不释放聚合物; 通过牺牲基板方法或通过激光钻孔方法处理背面; 并从基板上释放聚合物膜。

    Cochlear Stimulation Device
    36.
    发明申请
    Cochlear Stimulation Device 有权
    耳蜗刺激装置

    公开(公告)号:US20090143848A1

    公开(公告)日:2009-06-04

    申请号:US12267489

    申请日:2008-11-07

    CPC classification number: A61N1/0541 A61N1/0472

    Abstract: A cochlear stimulation device comprising an electrode array designed to provide enhanced charge injection capacity necessary for neural stimulation. The electrode array comprises electrodes with high surface area or a fractal geometry and correspondingly high electrode capacitance and low electrical impedance. The resultant electrodes have a robust surface and sufficient mechanical strength to withstand physical stress vital for long term stability. The device further comprises wire traces having a multilayer structure which provides a reduced width for the conducting part of the electrode array. The cochlear prosthesis is attached by a grommet to the cochleostomy that is made from a single piece of biocompatible polymer. The device, designed to achieve optimum neural stimulation by appropriate electrode design, is a significant improvement over commercially available hand-built devices.

    Abstract translation: 耳蜗刺激装置包括设计成提供神经刺激所需的增强的电荷注入能力的电极阵列。 电极阵列包括具有高表面积或分形几何形状的电极以及相当高的电极电容和低的电阻抗。 所得电极具有坚固的表面和足够的机械强度以抵抗对于长期稳定性至关重要的物理应力。 该装置还包括具有多层结构的导线迹线,其为电极阵列的导电部分提供减小的宽度。 耳蜗假体通过索环连接到由单一生物相容性聚合物制成的耳蜗切开术。 该设备旨在通过适当的电极设计实现最佳神经刺激,这是相对于市售的手工设备的显着改进。

    Flexible Circuit Electrode Array with Wire or Film Support
    37.
    发明申请
    Flexible Circuit Electrode Array with Wire or Film Support 有权
    带电线或薄膜支架的柔性电路电极阵列

    公开(公告)号:US20080288036A1

    公开(公告)日:2008-11-20

    申请号:US12032627

    申请日:2008-02-15

    CPC classification number: A61N1/0543 A61N1/05 A61N1/0541 H05K1/0393 H05K1/118

    Abstract: The disclosure relates to a flexible circuit electrode array comprising: a polymer base layer; metal traces deposited on said polymer base layer, including electrodes suitable to stimulate neural tissue; a polymer top layer deposited on said polymer base layer and said metal traces; and at least one support embedded in said array. The disclosure further relates to a flexible circuit electrode array comprising: a polymer base layer; metal traces deposited on said polymer base layer, including electrodes suitable to stimulate neural tissue; a polymer top layer deposited on said polymer base layer and said metal traces; and a folded flexible circuit cable connecting the electrode array with an interconnection pad. The disclosure further relates to a method of making a flexible circuit electrode array comprising: depositing a polymer base layer; depositing metal on said polymer base layer; patterning said metal to form metal traces; depositing a polymer top layer on said polymer base layer and said metal traces; heating said flexible circuit electrode array in a mold to form a three dimensional shape in said flexible circuit electrode array, embedding a support at least in the base layer, top layer or between the base and top layer, and/or folding a flexible circuit cable at least once connecting the electrode array with an interconnection pad the array.

    Abstract translation: 本发明涉及柔性电路电极阵列,包括:聚合物基层; 沉积在所述聚合物基层上的金属痕迹,包括适于刺激神经组织的电极; 沉积在所述聚合物基底层和所述金属迹线上的聚合物顶层; 以及嵌入在所述阵列中的至少一个支撑。 本发明还涉及一种柔性电路电极阵列,包括:聚合物基层; 沉积在所述聚合物基层上的金属痕迹,包括适于刺激神经组织的电极; 沉积在所述聚合物基底层和所述金属迹线上的聚合物顶层; 以及将电极阵列与互连衬垫连接的折叠柔性电路电缆。 本公开还涉及一种制造柔性电路电极阵列的方法,包括:沉积聚合物基层; 在所述聚合物基层上沉积金属; 图案化所述金属以形成金属痕迹; 在所述聚合物基底层和所述金属迹线上沉积聚合物顶层; 将所述柔性电路电极阵列加热到模具中以在所述柔性电路电极阵列中形成三维形状,至少在基层,顶层或基底与顶层之间嵌入支撑件,和/或折叠柔性电路电缆 至少一次将电极阵列与互连衬垫连接在一起。

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