A glenoid component of a shoulder joint prosthesis

A - Human Necessities – 61 – F

Patent

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A61F 2/40 (2006.01)

Patent

CA 2643112

A glenoid component (2) of a shoulder joint prosthesis for fixation to the glenoid region of a scapula, comprises a body part (16) of the prosthesis which presents a surface for articulation with the corresponding articulating surface of a humeral component, and a frame part (4). The frame part has a lateral surface (20) on which the body part can be mounted, and a medial surface (22) generally opposite the lateral surface. First and second bores (24,26) extend between the lateral and medial surfaces for receiving screws (16, 18) so as to fasten the frame part to the scapula. The bores are configured so that their axes (28, 30) converge, so that the distance measured between the axes decreases with increasing distance away from the medial surface of the frame towards the scapula.

L'invention concerne un composant glénoïde d'une prothèse d'articulation de l'épaule destiné à être fixé à la région glénoïde d'une omoplate, qui comprend une partie de corps de la prothèse qui présente une surface pour l'articulation avec la surface d'articulation correspondante d'un composant huméral, ainsi qu'une partie de cadre. La partie de cadre a une surface latérale sur laquelle la partie de corps peut être montée, et une surface médiale généralement en face de la surface latérale. Des premier et deuxième alésages s'étendent entre les surfaces latérale et médiale pour recevoir des vis de manière à fixer la partie de cadre à l'omoplate. Les alésages sont configurés de manière à ce que leurs axes convergent, de sorte que la distance mesurée entre les axes diminue au fur et à mesure que la distance à la surface médiale du cadre augmente, en direction de l'omoplate.

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