Instrument set for inserting an intervertebral joint prosthesis

Details Instrument set for inserting an intervertebral joint prosthesis Instrument set for inserting an intervertebral joint prosthesis

A - Human Necessities

61

B

A61B 17/02 (2006.01) A61B 17/16 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2547986

The invention relates to an instrument for the insertion of an intervertebral articular prosthesis in an intervertebral space between two vertebral bodies. Said inventive instrument comprises; a) an adjusting device which is provided with an intervertebral plate (11) and an adjusting bar (31) which protrudes therefrom, b) a guiding device (34) which is supported, in a detachable manner, by the adjusting device (31), said guiding device forming two guiding axes (37, 38) for a treatment instrument in the vertebral bodies, said guiding axes being arranged above and below the adjusting bar (31) on the median plane, c) two fixing means which can be introduced into the vertebral bodies (2) in the direction of the guiding axes (37, 38) by means of the treatment instrument and d) a distraction instrument which maintains the fixing means in a fixed direction.

L'invention concerne un instrument d'insertion d'une prothèse articulaire intervertébrale dans un espace intervertébral entre deux vertèbres. L'instrument selon l'invention comporte a) un dispositif d'ajustage composé d'une plaque intervertébrale (11) et d'une tige d'ajustage (31) faisant saillie vers l'avant par rapport à la plaque, b) un dispositif de guidage (34) porté de façon amovible par la tige d'ajustage (31), formant deux axes de guidage (37, 38) d'un instrument de traitement, situés dans le plan médian, au-dessus et en-dessous de la tige d'ajustage (31), c) deux éléments de fixation pouvant être introduits dans les vertèbres (2) en direction des axes de guidage (37, 38) par l'intermédiaire de l'instrument de traitement, et d) un instrument de distraction maintenant les éléments de fixation dans une direction fixe.

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