System for stabilizing at least three vertebrae

Details System for stabilizing at least three vertebrae System for stabilizing at least three vertebrae

A - Human Necessities

61

B

A61B 17/70 (2006.01)

Patent

CA 2722966

A stabilization system for stabilizing at least three vertebrae, comprising a single flexible tie (28) having two free end portions (28e, 28f) and intermediate portions (28a, 28c, 28d) therebetween, said tie being adapted to form a single loop around the spinous processes of said vertebrae (V1, V2, V3). The stabilization system further comprises a group of at least two spacers (12, 110), each spacer being adapted to be interposed between the spinous processes of two adjacent vertebrae. The group of spacers (12, 110) comprises at least: a first spacer (12) having guiding means for guiding two intermediate portions (28c, 28d) of the tie, and a second spacer (110) with a tie-securing system through which the two free end portions (28e, 28f) of the tie can be inserted and pulled, the tie- securing system allowing said free end portions (28e, 28f) to be fixedly secured to the second spacer (110).

La présente invention concerne un système de stabilisation permettant de stabiliser au moins trois vertèbres, comprenant un lien unique flexible (28) ayant deux extrémités libres (28e, 28f) et des parties intermédiaires (28a, 28c, 28d) entre les deux, ledit lien étant conçu pour former une seule boucle autour des apophyses épineuses desdites vertèbres (V1, V2, V3). Le système de stabilisation comprend en outre un groupe dau moins deux cales (12, 110), chaque cale étant conçue pour être interposée entre les apophyses épineuses de deux vertèbres adjacentes. Le groupe de cales (12, 110) comprend au moins une première cale (12) ayant un moyen de guidage pour guider les deux parties intermédiaires (28c, 28d) du lien, et une seconde cale (110) avec un système de serrage du lien à travers lequel les deux extrémités libres (28e, 28f) du lien peuvent être insérées et tirées, le système de serrage du lien permettant que lesdites extrémités libres (28e, 28f) soient fixées à la seconde cale (110).

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