System and method for insertion of flexible spinal...

A - Human Necessities – 61 – B

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A61B 17/70 (2006.01)

Patent

CA 2680657

Insertion of a spinal stabilization element (10) into a patient generally includes positioning a cord (30) within a sheath (70) and inserting the sheath (70) and cord (30) through the patient's body (12) along a path generally toward an anchor member 20, 22. An advancement member (84) may be mounted on the leading end of the cord (30) to further facilitate this insertion. The sheath (70) is then retracted to expose a first portion of the cord (30) within the patient's body (12), and the first portion of the cord (30) is moved into a desired position relative to the anchor member (20, 22). After advancing a spacer (32) over the sheath (70) and cord (30), the sheath (70) is retracted to expose a second portion of the cord (90). The second portion of the cord (90) is then moved into a desired position relative to another anchor member such that the spacer (32) is positioned between the two anchor members.

L'invention concerne l'insertion d'un élément de stabilisation spinale (10) dans un patient qui comprend, d'une manière générale, le positionnement d'un cordon (30) dans une gaine (70) et l'insertion de la gaine (70) et du cordon (30) à travers le corps (12) du patient le long d'un trajet généralement vers un élément d'ancrage (20, 22). Un élément d'avancement (84) peut être monté sur l'extrémité de tête du cordon (30) pour faciliter davantage cette insertion. La gaine (70) est ensuite retirée pour exposer une première partie du cordon (30) dans le corps (12) du patient et la première partie du cordon (30) est déplacée jusqu'à une position souhaitée par rapport à l'élément d'ancrage (20, 22). Après l'avancement d'une pièce d'écartement (32) sur la gaine (70) et le cordon (30), la gaine (70) est retirée pour exposer une seconde partie du cordon (90). La seconde partie du cordon (90) est ensuite déplacée jusqu'à une position souhaitée par rapport à un autre élément d'ancrage de telle sorte que la pièce d'écartement (32) est positionnée entre les deux éléments d'ancrage.

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