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公开(公告)号:US20150148911A1
公开(公告)日:2015-05-28
申请号:US14411881
申请日:2013-06-27
申请人: Witold Lojkowski , Tadeusz Chudoba , Elzbieta Pietrzykowska , Aleksandra Kedzierska , Dariusz Smolen , Wojciech Swieszkowski , Krzysztof Kurzydlowski
发明人: Witold Lojkowski , Tadeusz Chudoba , Elzbieta Pietrzykowska , Aleksandra Kedzierska , Dariusz Smolen , Wojciech Swieszkowski , Krzysztof Kurzydlowski
IPC分类号: A61F2/28 , C04B35/447
CPC分类号: A61F2/28 , A61F2310/00293 , A61L27/12 , A61L2400/12 , C04B35/447 , C04B35/62655 , C04B35/645 , C04B2235/3212 , C04B2235/5409 , C04B2235/5445 , C04B2235/604 , C04B2235/6562 , C04B2235/6567 , C04B2235/662 , C04B2235/767 , C04B2235/77 , C04B2235/781 , C04B2235/96
摘要: To manufacture the implant a nanopowder of synthetic hydroxyapatite (Hap) is used having a hexagonal structure, average grain size in a range from 3 to 30 nm and the specific surface area greater than 200 m2/g. First the nanopowder is formed to the desired geometric shape, and then the shape is fixed. In the step of shape information the dried nanopowder is pressed in the mold under the pressure ranging from 50 Mpa to 2 GPa. In the step of fixing the pressed nanopowder at room temperature is subjected to the pressure rising from the ambient value to the peak value selected from a range of 1 to 8 GPa and to a temperature selected from a range of 100° C. to 600° C. for a period of time selected from a range from 30 seconds to 5 minutes. The density of thus produced implant, determined by helium method, is not less than 75% of the theoretical density.
摘要翻译: 为了制造植入物,使用具有六方结构的合成羟基磷灰石(Hap)的纳米粉末,平均粒度在3至30nm的范围内,比表面积大于200m 2 / g。 首先,将纳米粉末形成为所需的几何形状,然后形状固定。 在形状信息的步骤中,将干燥的纳米粉末在50Mpa至2GPa的压力下在模具中压制。 在将压制的纳米粉末在室温下固定的步骤经受从环境值升高到选自1至8GPa范围内的峰值的压力和从100℃至600℃范围内的温度 从30秒到5分钟的范围内选择一段时间。 由此产生的植入物的密度由氦法确定,不小于理论密度的75%。