The invention discloses a modified biomedical implant surface (e.g., orthopedic implants) and methods of making and using such implants, the surface modification can enhance bone cement with strength (such as tensile strength, shear strength and / or fatigue strength). The implant may exhibit a variety of physical, chemical, or process derived features that can enhance bone cement bonding. For example, the implant surface may present specific roughness values, and / or essentially non native materials. A method of making such an implant may include providing a first rough implant surface that can be prepared by sandblasting with particles such as particles. A processing agent can be applied to the first rough surface to generate a second rough surface exhibiting an enhanced bone cement bonding property relative to the first rough surface. The second rough surface is formed on the first rough surface. In some cases, the first rough surface and the second rough surface can present substantially similar Ra values. The second rough surface can present a negative Rsk value.
【技术实现步骤摘要】
【技术保护点】
1.一种制备生物医学植入物的方法,包括:制备具有第一粗糙表面的植入物,所述第一粗糙表面表现出介于约0.1微米和约100微米之间的第一Ra值;以及将所述植入物的所述第一粗糙表面暴露于处理制剂,以形成第二粗糙表面,所述第二粗糙表面表现出与所述第一Ra值基本上类似的第二Ra值,其中所述植入物的所述第二粗糙表面在与骨水泥接触时表现出增强的骨水泥/植入物机械联锁。
【技术特征摘要】
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【专利技术属性】
技术研发人员:W·童,S·莱辛格,L·萨尔瓦蒂,J·博尼塔蒂,
申请(专利权)人:德普伊产品公司,
类型:发明
国别省市:US
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