External fixation apparatus

A - Human Necessities – 61 – B

Patent

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A61B 17/64 (2006.01)

Patent

CA 2512074

Apparatuses for externally fixing and precisely adjusting fractures, such as fractures near the ankle, are disclosed. In one embodiment, an external fixation apparatus includes a first member attachable to a first bone segment through pins, a second member coupled to the first member through a lockable ball joint, wherein first and second ends of the second member may be translated transversely relative to a longitudinal axis of the second member, and a pin clamp coupled to and rotatable about the second member through a lockable joint and attachable to a second bone segment. The pin clamp and the second member may be releasably coupled.

L'invention concerne des appareils permettant de fixer de manière externe et d'ajuster de manière précise des fractures, telles que celles situées à proximité de la cheville. Dans un mode de réalisation, un appareil de fixation externe comprend un premier élément pouvant être fixé sur un premier segment d'un os par l'intermédiaire de broches, un second élément couplé au premier élément par l'intermédiaire d'un joint à rotule pouvant être verrouillé, les première et seconde extrémités du second élément pouvant être soumises à une translation transversale par rapport à un axe longitudinal du second élément, ainsi qu'un étrier de broche couplé au second élément et rotatif autour de celui-ci par l'intermédiaire d'un joint pouvant être verrouillé et fixé sur le second segment de l'os. L'étrier de broche et le second élément peuvent être couplés de manière amovible.

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