Modular prosthesis

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/36 (2006.01) A61F 2/38 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2296552

A kit for producing a modular prosthesis (10) is provided, the kit including a first prosthesis member (12) having a cavity such as a bore (14) formed in it, and a clamp (30) releasably clamped in the cavity (14). The clamp (30), which may be a rod having an axial bore (32) through a portion of its length, is subjected to a stretching force to cause the diameter of the clamp (30) to be reduced enough so that the clamp (30) is received in the cavity (14). As the stimulus is withdrawn, the clamp (30) returns towards its initial configuration, and in so doing, expands against the walls of the cavity (14). A second prosthesis member (16) may be configured to receive a portion of the first member (12) such that expansion of the clamp (30) in the cavity (14) of the first member (12) concurrently causes that member (12) to expand into contact with the second member (16) to clamp the members (12, 16) together.

L'invention concerne un kit destiné à la production d'une prothèse modulaire (10), lequel kit comprend un premier élément de prothèse (12) présentant une cavité de type alésage (14) formé en son intérieur ainsi qu'une pince (30) fixée de manière amovible à l'intérieur de la cavité (14). La pince (30), qui peut être une tige présentant un alésage axial (32) sur une partie de sa longueur, est soumise à une force d'étirement afin de réduire suffisamment son diamètre de façon à ce que ladite pince (30) puisse être introduite dans la cavité (14). A mesure que la force diminue, la pince (30) revient à sa configuration initiale et, de ce fait, se déploie contre les parois de la cavité (14). Un second élément de prothèse (16) peut être configuré pour recevoir une partie du premier élément (12), ceci de façon à ce que le déploiement de la pince (30) dans la cavité (14) du premier élément (12) provoque simultanément le déploiememt de cet élément (12) et à ce que ce dernier entre en contact avec le second élément (16) afin de bloquer lesdits éléments (12, 16) l'un contre l'autre.

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