Mobile bearing knee prosthesis

Details Mobile bearing knee prosthesis Mobile bearing knee prosthesis

A - Human Necessities

61

F

A61F 2/38 (2006.01)

Patent

CA 2532877

A knee prosthesis having a mobile may include a spherical radius interface comprised of a concave superior surface on a tibial tray (102) and a convex inferior surface on a tibial insert (104). The knee prosthesis may also include a spherical radius interface comprised of a convex superior surface on a tibial tray and a concave inferior surface on a tibial insert. The mobile bearing knee prosthesis can additionally include a bi-concave interface (e.g., having a "wave" like surface geometry).

L'invention concerne une prothèse de genou à appui mobile. Ladite prothèse peut comprendre une interface à rayon sphérique composée d'une surface supérieure concave sur un plateau tibial (102) et d'une surface inférieure convexe sur un insert tibial (104). Cette prothèse peut également comprendre une interface à rayon sphérique composée d'une surface supérieure convexe sur le plateau tibial et d'une surface inférieure concave sur l'insert tibial. La prothèse selon l'invention peut également comprendre une interface biconcave (présentant une géométrie de surface de type ondulée, par exemple).

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