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    • 1. 发明授权
    • Implantable microelectrode
    • 可植入微电极
    • US5515848A
    • 1996-05-14
    • US482189
    • 1995-06-07
    • Scott S. Corbett, IIIJerry MartyniukGerald E. LoebKlaus MewesW. Eugene SkiensJohn J. StobieDoris A. Beck
    • Scott S. Corbett, IIIJerry MartyniukGerald E. LoebKlaus MewesW. Eugene SkiensJohn J. StobieDoris A. Beck
    • A61B18/14A61F11/04A61N1/05H01B7/00H01B7/02H01B7/04H01R13/50H01R43/24H04R25/00A61B5/042
    • A61F11/04A61N1/0551H01R13/50H01R43/24A61B2018/00107Y10T29/49117
    • A miniature, electrically-insulated multi-conductor electrical cable suitable for implantation in living bodies and readily connected to sensors or electrodes, and implantable microelectrodes attached to such cables. Individual electrical conductors are coated with at least one layer of, insulating material and stranded together, or optionally bound together by an additional layer of insulating material which is compatible with implantation in living bodies. The individual conductors are separated from one another in terminal portions of the cable and are held by a ribbonizing resin at a predetermined pitch to facilitate connection of each of the conductors. The terminal portions may define microelectrodes. Another microelectrode includes an electrically conductive electrode core member sharpened and coated with a thin layer of a dielectric material. An extremely small area of the core at the sharpened point is exposed by ablating the dielectric material by the use of an ultraviolet laser beam scanned over the material. Multiple conductor microelectrodes may also be supported within a hollow needle or in flat ribbon configuration, with openings in dielectric material defining active electrode sites. Multiple active electrode sites may be defined on a microelectrode accompanied by an integrated circuit after connection of the integrated circuit to a multiconductor cable.
    • 适用于植入生物体并容易连接到传感器或电极的微型电绝缘多导体电缆,以及连接到这种电缆的可植入微电极。 单个电导体涂覆有至少一层绝缘材料并且绞合在一起,或者可选地通过与植入在活体中相容的附加绝缘材料层结合在一起。 单个导体在电缆的端子部分彼此分离,并且以预定间距由带状树脂保持,以便于每个导体的连接。 端子部分可以限定微电极。 另一个微电极包括一个导电电极芯件,它被削尖并涂覆有一层介电材料。 通过使用在材料上扫描的紫外激光束来烧蚀电介质材料,在锐化点处的芯的极小区域被暴露。 多导体微电极也可以支撑在空心针或扁平带状结构中,电介质材料中的开口限定活性电极位置。 在集成电路连接到多导体电缆之后,可以在伴随着集成电路的微电极上限定多个活性电极位置。