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公开(公告)号:US20040054413A1
公开(公告)日:2004-03-18
申请号:US10244306
申请日:2002-09-16
IPC分类号: A61F002/44
CPC分类号: A61L27/52 , A61F2/30965 , A61F2/441 , A61F2/442 , A61F2002/3008 , A61F2002/30616 , A61F2002/30971 , A61F2002/444 , A61F2250/0064 , A61F2250/0098 , A61F2310/00023 , A61F2310/00131 , A61F2310/00137 , A61F2310/00149 , A61F2310/00155 , A61L27/50 , A61L2430/38
摘要: A spinal implant for replacing the natural nucleus of the disc made from a polymer such as hydrogel having a radiopaque material located within the polymer. The material may be in the form of a powder disbursed throughout the polymer or may be in he form of a powder disbursed in layers or in other specific locations within the polymer. The radiopaque material is metal such as gold, tungsten, titanium, tantalum or platinum. The metal may also be in the form of a foil or wire located within the hydrogel such as polyurethane, thereby making the implant visible on x-rays. Other polymers besides hydrogel may be used with the radiopaque material being disbursed therein.
摘要翻译: 用于替换由诸如水凝胶的聚合物制成的盘的天然核的脊椎植入物,其具有位于聚合物内的不透射线材料。 该材料可以是分散在整个聚合物中的粉末的形式,或者可以是分层形式或分散在聚合物内的其它特定位置的形式。 不透射线的材料是诸如金,钨,钛,钽或铂的金属。 金属也可以是位于水凝胶内的箔或线的形式,例如聚氨酯,从而使植入物在x射线上可见。 可以使用除水凝胶之外的其它聚合物,其中不透射材料被分配。