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    • 1. 发明授权
    • Apparatus and methods for embedding a biocompatible material in a
polymer bone implant
    • 用于将生物相容性材料嵌入聚合物骨植入物中的装置和方法
    • US6058590A
    • 2000-05-09
    • US267448
    • 1999-03-12
    • Jack C. RobertsPaul J. BiermannAmy A. Corvelli
    • Jack C. RobertsPaul J. BiermannAmy A. Corvelli
    • A61F2/00A61F2/30A61F2/46B29C70/82B23D11/02A61F2/28
    • A61F2/30907A61F2/30965B29C70/82A61F2/30767A61F2/3094A61F2/468A61F2002/30011A61F2002/30065A61F2002/30171A61F2002/30233A61F2002/30289A61F2002/30347A61F2002/30367A61F2002/30448A61F2002/3054A61F2002/30822A61F2002/30828A61F2002/30975A61F2210/0071A61F2220/0033A61F2220/005A61F2230/005A61F2230/0069A61F2230/0091A61F2250/0023A61F2310/00407B29L2031/7532Y10S623/901Y10T29/4981Y10T29/49863Y10T29/49925Y10T29/51
    • Apparatus and methods for partially embedding a biocompatible material, such as a titanium coil, in the surface of a polymer bone implant to provide a porous coating for bone cells to grow through thereby promoting long term stabilization of the implant. In one embodiment, the coil is wrapped around the implant and placed in a manifold where rollers biased by springs press against the coil. The coil-implant is rotated and heated by a hot gas stream, the rollers-springs pushing the coil into the surface of the implant. In a second embodiment, the coil is compressed and placed onto a needle wire which is placed against the surface of the implant. The point of contact is heated and the implant is rotated with the needle wire creating a channel in the softened polymer and feeding the coil, which is simultaneously stretched, therein. The needle wire then pulls the polymer over a portion of the coil as it passes. In a third embodiment, the coil is wrapped around the implant with an optional titanium foil then wrapped around the coil-implant. A ceramic clamp comprising at least two ceramic parts is placed around the foil(if used)-coil-implant and held in place by a nonconductive, elastic material. The coil-implant is then inductively heated with the coil being pushed into the softened surface of the implant by the pressure applied by the ceramic parts being compressed together by the elastic material. Alternatively, the titanium coil may be wrapped around the implant in sufficient tension that it will embed itself when inductively heated, without using the ceramic clamp and elastic material to apply pressure.
    • 用于将生物相容性材料(例如钛线圈)部分地嵌入聚合物骨植入物的表面中的装置和方法,以提供用于骨细胞生长的多孔涂层,从而促进植入物的长期稳定化。 在一个实施例中,线圈缠绕在植入物周围并且放置在歧管中,其中由弹簧偏置的辊压靠在线圈上。 线圈植入物通过热气流旋转和加热,辊弹簧将线圈推入植入物的表面。 在第二实施例中,线圈被压缩并放置在抵靠植入物表面的针线上。 接触点被加热并且植入物随着针线旋转,在软化的聚合物中形成通道并且在其中同时拉伸线圈。 针线然后在聚合物通过线圈的一部分时拉动聚合物。 在第三实施例中,线圈用可选的钛箔缠绕在植入物周围,然后缠绕在线圈植入物上。 将包括至少两个陶瓷部件的陶瓷夹具放置在箔片周围(如果使用) - 线圈植入物并通过非导电弹性材料保持就位。 然后线圈植入物通过由被弹性材料压缩在一起的陶瓷部分施加的压力被感应加热,线圈被推入植入物的软化表面。 或者,钛线圈可以以足够的张力缠绕在植入物上,当感应加热时它将嵌入其中,而不使用陶瓷夹具和弹性材料施加压力。