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    • 92. 发明申请
    • CERAMIC IMPLANTS AFFORDING CONTROLLED RELEASE OF ACTIVE MATERIALS
    • 陶瓷植入物处理活性材料的控制释放
    • US20100047318A1
    • 2010-02-25
    • US12195789
    • 2008-08-21
    • Mukesh Kumar
    • Mukesh Kumar
    • A61K9/00A61P43/00
    • A61K9/0024A61K9/5031
    • Implantable compositions capable of providing release of bioactive agents according to a predetermined release profile and methods for their use. Such compositions include at least one ceramic substrate; a bioactive substance loaded on a surface of a said ceramic substrate forming a loaded surface zone operable to release said bioactive substance according to a release profile under physiological conditions; and a biodegradable polymer having an in vivo degradation period, forming a continuous or discontinuous coating on an area of a said ceramic substrate. The composition comprises at least two said loaded surface zones having different release profiles, or at least two said coatings having different in vivo degradation periods.
    • 能够根据预定释放特征提供生物活性剂释放的植入物组合物及其使用方法。 这样的组合物包括至少一个陶瓷衬底; 负载在所述陶瓷基材的表面上的生物活性物质,其形成负载表面区域,其可操作以在生理条件下根据释放曲线释放所述生物活性物质; 以及具有体内降解期的可生物降解聚合物,在所述陶瓷基材的区域上形成连续或不连续的涂层。 所述组合物包含至少两个所述负载的表面区域具有不同的释放曲线,或至少两个所述涂层具有不同的体内降解期。
    • 95. 发明申请
    • Acetabular shell system and method for making
    • ular壳系统及制作方法
    • US20060198943A1
    • 2006-09-07
    • US11366727
    • 2006-03-02
    • Mukesh Kumar
    • Mukesh Kumar
    • A61L27/32B05D1/02B05D1/08
    • A61L27/306
    • A method for forming an acetabular shell includes providing a working surface such as a mandrel, and spraying the working surface with a first layer of material having a first composition such as aluminum oxide. After a suitable thickness is generated, the spray composition is gradually changed to other compositions having desired particle sizes and distribution. In one example, the composition is changed to a mixture of aluminum oxide and titanium oxide and/or titanium. As thickness builds up, the relative amount of aluminum oxide is decreased such that the composition is all titanium and titanium oxide. After a desired thickness is generated, the acetabular shell is extracted off the mandrel.
    • 一种用于形成髋臼壳的方法包括提供诸如心轴的工作表面,并且用具有第一组成的第一层材料如氧化铝喷涂工作表面。 在产生合适的厚度之后,将喷雾组合物逐渐变为具有所需粒度和分布的其它组合物。 在一个实例中,将组合物改变为氧化铝和氧化钛和/或钛的混合物。 随着厚度的增加,氧化铝的相对量降低,使得组合物全部为钛和氧化钛。 在产生期望的厚度之后,将髋臼壳从芯轴上取出。