Instrument for anterior intervertebral disk surgery

Details Instrument for anterior intervertebral disk surgery Instrument for anterior intervertebral disk surgery

A - Human Necessities

61

B

A61B 17/56 (2006.01) A61B 17/02 (2006.01) A61B 17/34 (2006.01) A61M 29/00 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2165457

An instrument including a guide needle (1), at least two nesting concentric tubes (2-6) placed over the guide needle, and an outer working tube (7) concentric with said tubes. The tip of the outer tube (7) is provided with a device (11) for spacing apart the bodies of vertebrae adjacent to the disk and keeping them apart during surgery, while its proximal end is provided with a hand grip (8). Anterior percutaneous nuclear incision performed with said instrument enables puncture of the disk, and particularly excision of the nucleus, to be performed easily, more quickly and more effectively than with the conventional posterolateral approach, while avoiding any damage to the anatomical environment of the patient.

Cet instrument comprend une aiguille-guide (1), au moins deux tubes gigognes concentriques (2-6) adaptés pour pouvoir être enfilés sur l'aiguille-guide et un tube extérieur (7) de travail concentrique aux tubes précites, l'extrémité apicale du tube (7) est pourvue d'un moyen (11) d'écartement des corps vertébraux contigus au disque et de maintien de cet écartement pendant le traitement chirurgical, tandis que son extrémité proximale est équipée d'une poignee (8) de préhension manuelle. La nucléotomie percutanée par voie antérieure effectuée grâce à cet instrument permet de réaliser aisément la ponction discale, notamment l'ablation du nucléus, de manière plus rapide et efficace que par la voie posté-latérale classiquement utilisée, et ce sans nuire à l'environnement anatomique du patient.

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