公开(公告)号：US20030229399A1

公开(公告)日：2003-12-11

申请号：US10166798

申请日：2002-06-11

Applicant: SPIRE CORPORATION

Inventor： Fereydoon Namavar

IPC: A61F002/28

CPC classification number: C23C8/02 ,  A61F2/30767 ,  A61F2/32 ,  A61F2/34 ,  A61F2/36 ,  A61F2/38 ,  A61F2/3804 ,  A61F2/3859 ,  A61F2/389 ,  A61F2/40 ,  A61F2002/30004 ,  A61F2002/30006 ,  A61F2002/30016 ,  A61F2002/30051 ,  A61F2002/30084 ,  A61F2002/30685 ,  A61F2002/30878 ,  A61F2002/30892 ,  A61F2002/30922 ,  A61F2002/30929 ,  A61F2002/30934 ,  A61F2002/3098 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2250/0014 ,  A61F2250/0015 ,  A61F2250/0018 ,  A61F2250/0019 ,  A61F2250/0054 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00407 ,  A61F2310/00413 ,  A61L27/04 ,  A61L27/30 ,  C23C8/36 ,  C23C14/16 ,  C23C14/22 ,  C23C26/00

Abstract: The present invention provides orthopedic prosthesis having at least one metallic component that includes a metallic substrate on which an integrally formed nano-crystalline coating is formed. The coating and the substrate have at least one metallic constituent in common having an average atomic concentration in the coating that differs from an average atomic concentration in the substrate by less than about 10 percent. Further, the nano-crystalline coatings includes crystalline grains with an average size in a range of about 1 to 999 nanometers, and more preferably in a range of about 10 to 200 nanometers. A transition region that exhibits a graded reduction in average grain size separates the coating from the substrate. The coating advantageously exhibits an enhanced hardness, and a high degree of resistance to corrosion and wear. In one application, the nano-crystalline coatings of the invention are utilized to form articulating surfaces of various orthopedic devices.

Abstract translation: 本发明提供具有至少一种金属成分的矫形假体，所述金属成分包括形成有整体形成的纳米晶体涂层的金属基底。 涂层和基材具有共同的至少一种金属成分，其在涂层中的平均原子浓度不同于基材中的平均原子浓度小于约10％。 此外，纳米晶体涂层包括平均尺寸在约1至999纳米范围内，更优选在约10至200纳米范围内的晶粒。 显示出平均粒度分级降低的过渡区域使涂层与基板分离。 涂层有利地表现出增强的硬度和高耐腐蚀性和耐磨性。 在一个应用中，本发明的纳米晶体涂层用于形成各种矫形装置的关节表面。