Anchoring means for a joint prosthesis or other component

A - Human Necessities – 61 – F

Patent

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A61F 2/36 (2006.01) A61F 2/30 (2006.01) A61F 2/46 (2006.01) A61B 17/74 (2006.01) A61B 17/80 (2006.01) A61F 2/00 (2006.01) A61F 2/32 (2006.01)

Patent

CA 2340155

An anchoring means for a joint prosthesis (4) tapers in a direction away from the joint prosthesis (4) but may be mounted in a bore through an inlet opening distal from the joint to be replaced. The anchoring means may comprise a tapering pin (53) which is cemented in place. Alternatively, the anchoring means may comprise a pin (3) and one or more retaining means (2, 3) which can be placed in the bore separately and manoeuvered such that the anchoring means tapers. Thus, a tapering anchoring pin is provided for a minimally invasive joint replacement technique.

On décrit un moyen d'ancrage d'une prothèse articulaire (4), qui s'évase en s'éloignant de la prothèse articulaire (4) mais peut être monté dans un trou à travers un orifice d'entrée distal de l'articulation à remplacer. Ce moyen d'ancrage peut comprendre une broche conique (53) mise en place par cimentation. Dans une forme de réalisation différente, le moyen d'ancrage peut comprendre une broche (3) et un ou plusieurs moyens de retenue (2, 3), lesquels peuvent être placés dans le trou séparément, et manoeuvrés de manière à ce qu'ils présentent un aspect conique. On obtient ainsi une broche d'ancrage conique pouvant être utilisée dans une technique de remplacement d'articulation avec effraction minimale.

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