Prosthetic joint with diamond coated interfaces

Details Prosthetic joint with diamond coated interfaces Prosthetic joint with diamond coated interfaces

A - Human Necessities

61

F

A61F 2/30 (2006.01) A61F 2/32 (2006.01) A61L 27/00 (2006.01) A61L 27/30 (2006.01) B24D 3/02 (2006.01) A61F 2/00 (2006.01) A61F 2/34 (2006.01) A61F 2/36 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2197307

A prosthetic joint (108, 130) with polycrystalline diamond compact coated interfaces (150, 158) and a method for making the same are disclosed. The prosthetic joint (108, 130) has a diamond layer (150, 158) formed on at least one of the interacting, load-bearing surfaces of the joint (108, 130). The diamond layer (150, 158) adds resistance to damage from impacts and, when polished, gives the joint a low coefficient of friction, thereby increasing the life of the joint (108, 130). In accordance with one aspect of the invention, the diamond layer is formed of polycrystalline diamond compact having a common diamond particle diameter of less than 1 micron to further reduce friction.

Articulation prothétique (108, 130) pourvue d'interfaces (150, 158) recouvertes d'une compression de diamants polycristallins et son procédé de fabrication. Cette articulation (108, 130) présente une couche (150, 158) de diamants formée sur au moins une de ses surfaces porteuses, en interaction avec l'autre. La couche (150, 158) de diamants accroît la résistance de l'articulation aux dommages causés par des chocs, et, lorsqu'elle est polie, confère à cette articulation un faible coefficient de friction, accroissant ainsi la vie utile de celle-ci (108, 130). Selon un aspect de l'invention, la couche de diamants est formée à partir d'une compression de diamants polycristallins possédant un diamètre de particule commun inférieur à 1 micron afin de réduire davantage la friction.

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