Electrically-charged nerve guidance channels
    23.
    发明授权
    Electrically-charged nerve guidance channels 失效
    电荷神经引导通道

    公开(公告)号:US5030225A

    公开(公告)日:1991-07-09

    申请号:US621081

    申请日:1990-11-30

    Abstract: A medical device is disclosed for use in regenerating a severed nerve. The device includes an implantable, tubular, electrically-charged membrane having openings adapted to receive the ends of the severed nerve and a lumen having a diameter ranging from about 0.5 millimeters to about 2.0 centimeters to permit regeneration of the nerve therethrough. The membrane is fabricated such that an electric charge is exhibited at the inner membrane surface to stimulate regeneration by axonal sprouting and process extension. Also disclosed are methods for repairing a severed nerve and for preparing a medical device for use in regeneration of a severed nerve.

    Abstract translation: 公开了用于再生切断的神经的医疗装置。 该装置包括可植入的,管状带电的膜,其具有适于接纳切断的神经的端部的开口和具有约0.5毫米至约2.0厘米的直径的内腔,以允许神经通过其再生。 制造膜,使得在内膜表面显示电荷,以通过轴突发芽和加工延伸来刺激再生。 还公开了修复切断的神经和用于制备用于再次切断的神经的医疗装置的方法。

    Composite nerve guidance channels
    24.
    发明授权
    Composite nerve guidance channels 失效
    复合神经引导通道

    公开(公告)号:US5011486A

    公开(公告)日:1991-04-30

    申请号:US273236

    申请日:1988-11-18

    Abstract: Medical devices and methods employing biocompatible polymers and nerve growth-enhancing active factors are disclosed for use as guidance channels for regenerating nerves. The devices are formed from a porous, tubular membrane containing active factor incorporated within the membrane and having openings adapted to receive the ends of the severed nerve. In one aspect of the invention, the membrane has an impermeable, outer membrane surface and a porous, inner membrane surface through which the active factor can diffuse and which defines the boundary of a lumen through which said nerve may regenerate. Methods for fabricating such devices are also disclosed.

    Abstract translation: 公开了使用生物相容性聚合物和神经生长增强活性因子的医疗装置和方法用作神经再生的引导通道。 该装置由多孔的管状膜形成,该多孔的管状膜含有并入膜内的活性因子并且具有适于接收切断的神经的末端的开口。 在本发明的一个方面,所述膜具有不可透过的外膜表面和多孔的内膜表面,所述活性因子可通过所述内膜表面扩散并限定所述神经可再生的内腔的边界。 还公开了制造这种装置的方法。

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