Return Electrode for a Flexible Circuit Electrode Array
    3.
    发明申请
    Return Electrode for a Flexible Circuit Electrode Array 审中-公开
    用于柔性电路电极阵列的返回电极

    公开(公告)号:US20090118805A1

    公开(公告)日:2009-05-07

    申请号:US12168740

    申请日:2008-07-07

    IPC分类号: A61F9/08 A61N1/05

    摘要: In a visual prosthesis electrodes stimulate retinal tissue to induce the perception of light to a user implanted with the prosthesis. The prosthesis must have a return, or common, electrode to make a complete circuit with the retinal tissue. To avoid stimulating tissue with the return electrode, it is advantageous if the electrode is large.The invention involver 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 return electrode separate from said stimulating electrodes.The flexible circuit electrode array comprises a secondary coil for receiving visual data; an electronics package electrically coupled to said receiving coil, and a plurality of stimulating electrode electrically coupled to said electronics package.

    摘要翻译: 在视觉假体中,电极刺激视网膜组织以诱导植入假体的使用者对光的感知。 假体必须具有返回或常见的电极以与视网膜组织形成完整的电路。 为了避免用返回电极刺激组织,如果电极很大,则是有利的。 本发明涉及柔性电路电极阵列,其包括聚合物基底层,沉积在所述聚合物基底层上的金属迹线,包括适于刺激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的神经组织的电极和分离的回流电极 从所述刺激电极。 柔性电路电极阵列包括用于接收视觉数据的次级线圈; 电耦合到所述接收线圈的电子封装,以及电耦合到所述电子封装的多个刺激电极。

    Cochlear Stimulation Device
    4.
    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

    IPC分类号: A61N1/05

    CPC分类号: A61N1/0541 A61N1/0472

    摘要: 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.

    摘要翻译: 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。

    Cochlear stimulation device
    5.
    发明授权
    Cochlear stimulation device 有权
    人工耳蜗刺激装置

    公开(公告)号:US08874239B2

    公开(公告)日:2014-10-28

    申请号:US12267489

    申请日:2008-11-07

    IPC分类号: A61N1/00 A61N1/05

    CPC分类号: A61N1/0541 A61N1/0472

    摘要: 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.

    摘要翻译: 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。

    Retinal prosthesis with a new configuration
    9.
    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:US08078284B2

    公开(公告)日:2011-12-13

    申请号:US11523965

    申请日:2006-09-19

    IPC分类号: A61N1/00

    摘要: 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.

    摘要翻译: 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。

    Retinal Prosthesis with a New Configuration
    10.
    发明申请
    Retinal Prosthesis with a New Configuration 有权
    具有新配置的视网膜假体

    公开(公告)号:US20080275527A1

    公开(公告)日:2008-11-06

    申请号:US11924696

    申请日:2007-10-26

    IPC分类号: A61N1/00

    摘要: 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.

    摘要翻译: 聚合物材料可用作用于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。