Hip prosthesis with a tight seal

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/36 (2006.01) A61F 2/30 (2006.01) A61F 2/46 (2006.01) A61F 2/00 (2006.01) A61F 2/28 (2006.01)

Patent

CA 2174405

La prothèse selon l'invention, destinée à former la partie mâle de l'articulation du fémur, comprend une tête (1) reliée par un col (2) à une tige (3). Dans la zone de transition (4) entre la partie extra osseuse et la partie intra-osseuse de prothèse, on réalise une surface annulaire (5) en une matière poreuse réhabitable, permettant la formation naturelle d'un joint d'étanchéite fibreux entre l'extrémité supérieure du fémur et ladite surface annulaire (5), s'opposant à la pénétration de corps étrangers entre l'os et la tige (3) de prothèse. On réduit ainsi sensiblement les risques d'ostéolyse.

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