Flexible spinal fixation elements

Details Flexible spinal fixation elements Flexible spinal fixation elements

A - Human Necessities

61

B

A61B 17/56 (2006.01)

Patent

CA 2548726

A flexible spinal fixation element is provided that is movable between a first position, in which the spinal fixation element is adapted to be angularly manipulated, and a second, locked position, in which the spinal fixation element is aligned in a desired orientation and is immovable. The configuration of the flexible spinal fixation element can vary, but the fixation element is preferably formed from a bioimplantable member having segments or a bellows configuration that allows the fixation element to be selectively configurable between the first and second positions. In use, the flexibility of the spinal fixation element allows the fixation element to be introduced through a percutaneous access device, thereby advantageously allowing the fixation element to be implanted using minimally invasive techniques.

La présente invention concerne un élément de fixation vertébrale souple mobile entre une première position, dans laquelle il peut être manipulé de manière angulaire, et une seconde position verrouillée, dans laquelle il est aligné dans une orientation souhaitée et dans laquelle il est immobile. La configuration de cet élément de fixation peut varier, mais il est, de préférence, constitué d'un élément bio-implantable qui présente des segments ou une configuration à soufflets qui lui permet d'être placé sélectivement entre la première position et la seconde position. Pendant l'utilisation de l'élément de fixation vertébrale souple, sa souplesse permet de l'introduire par l'intermédiaire d'un dispositif d'accès percutané, ce qui permet d'implanter avantageusement cet élément de fixation selon des techniques peu invasives.

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