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    Flexible Circuit Electrode Array
    21.
    发明申请
    Flexible Circuit Electrode Array 审中-公开

    公开(公告)号：US20080057179A1

    公开(公告)日：2008-03-06

    申请号：US11926046

    申请日：2007-10-28

    Applicant: Robert Greenberg ,  Neil Talbot ,  Jordan Neysmith ,  Dilek Guven ,  James Little ,  Brian Mech ,  Mark Humayun

    Inventor： Robert Greenberg ,  Neil Talbot ,  Jordan Neysmith ,  Dilek Guven ,  James Little ,  Brian Mech ,  Mark Humayun

    IPC: B05D5/12

    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, or cortical stimulation many 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.

    Micro-miniature implantable coated device
    23.
    发明申请
    Micro-miniature implantable coated device 有权

    公开(公告)号：US20060173497A1

    公开(公告)日：2006-08-03

    申请号：US11343170

    申请日：2006-01-30

    Applicant: Brian Mech ,  Robert Greenberg ,  Honggang Jiang

    Inventor： Brian Mech ,  Robert Greenberg ,  Honggang Jiang

    IPC: A61N1/00

    CPC classification number: A61N1/37205 ,  A61N1/05 ,  A61N1/372 ,  A61N1/375 ,  C23C14/081 ,  C23C14/28

    Abstract: An implantable micro-miniature device is disclosed. The device comprises a thin hermetic insulating coating and at least one thin polymer or metal secondary coating over the hermetic insulating layer in order to protect the insulating layer from the erosive action of body fluids or the like. In one embodiment the insulating layer is ion beam assisted deposited (IBAD) alumina and the secondary coating is a parylene polymer. The device may be a small electronic device such as a silicon integrated circuit chip. The thickness of the insulating layer may be ten microns or less and the thickness of the secondary layer may be between about 0.1 and about 15 microns.

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