Spinal fixation system

Details Spinal fixation system Spinal fixation system

A - Human Necessities

61

B

A61B 17/70 (2006.01)

Patent

CA 2416115

The present invention relates to a fastener assembly (10) for a spinal fixation system and is particularly useful in treatment of pediatric and small- statured patients. The fastener assembly (10) includes a fastener (12), an attachment member (14), and a locking member (16). The fastener (12) has a lower portion (20) for contacting a bone and a upper portion (22) integral with the lower portion (20) and having two open channels (35). Each channel (35) is configured and dimensioned for receiving a portion of the longitudinal member (18) along its circumference. The attachment member (14) is positionable on the fastener (12) and at least partially covers the channel (35) that receives the longitudinal member (18). The attachment member (14) is configured and dimensioned for receiving another portion of the longitudinal member (18) along its circumference. The locking member (16) is operatively associated with the upper portion (22) of the fastener (12) and secures the attachment member (14) and longitudinal member (18) to the fastener (12).

L'invention concerne un ensemble fixateur (10) destiné un système de fixation vertébrale et particulièrement utile dans le traitement de patients pédiatriques et de petite taille. L'ensemble fixateur (10) comprend une attache (12), un élément de fixation (14) et un élément de verrouillage (16). L'attache (12) comporte une partie inférieure (20) destinée à entrer au contact d'un os et une partie supérieure (22) solidaire de la partie inférieure (20) et dotée de deux canaux ouverts (35). Chaque canal (35) est conçu et dimensionné pour recevoir une partie de l'élément longitudinal (18) le long de sa circonférence. L'élément de fixation (14) peut être positionné sur l'attache (12) et recouvre au moins partiellement le canal (35) qui reçoit l'élément longitudinal (18). L'élément de fixation (14) est conçu et dimensionné pour recevoir une autre partie de l'élément longitudinal (18) le long de sa circonférence. L'élément de verrouillage (16) est associé de manière fonctionnelle à la partie supérieure (22) de l'attache (12) et assujettit l'élément de fixation (14) et l'élément longitudinal (18) à l'attache (12).

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