Method and system for fusing a spinal region

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/16 (2006.01) A61B 17/17 (2006.01) A61F 2/44 (2006.01) A61F 2/46 (2006.01) A61B 19/00 (2006.01) A61L 27/24 (2006.01) A61L 27/38 (2006.01) A61L 27/54 (2006.01) A61L 27/58 (2006.01)

Patent

CA 2373715

A method and system for fusing a region in the spine involve the use of at least one guide tube (l0a) to pass instruments and substances into the spinal region in a minimally invasive manner. In the preferred practice of the method, a guide tube is anchored to a vertebra and the guide tube is moved to thereby position the vertebra. A steerable drilling tool (20a) is passed through the guide tube and steered into position to abrade at least a portion of an intervertebral disc, thereby creating a cavity in the disc. A flowing substance is passed into the cavity and permitted to solidify to establish fusion in the cavity. Optionally, an uninflated balloon (40) is inserted into the cavity and the balloon is filled with the flowing substance to contain the flowing substance.

Dans le cadre de cette technique et avec le système correspondant permettant de souder une région de l'épine dorsale, il est utilisé au moins un tube guide (10a) pour faire passer des instruments et des substances dans la région vertébrale de la façon la moins effractive possible. Dans le mode de réalisation préféré de cette invention, un tube guide est ancré à une vertèbre et il est déplacé afin de positionner la vertèbre. Un instrument à percer orientable (20a) passe par le tube et est orienté de manière à lui faire prendre une position lui permettant d'abraser au moins une partie d'un disque intervertébral et, partant, de ménager une cavité dans ce disque. On introduit dans la cavité une substance fluide que l'on laisse solidifier afin de constituer une soudure dans la cavité. On introduit, éventuellement, un ballonnet non gonflé (40) dans la cavité et on le remplit de substance fluide.

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