Modular disc device

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/44 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2585417

The disclosure generally relates to a modular disc (300) that is insertable by- sections into a disc space located between vertebral bodies. The primary segments of the modular disc are one or more middle members (302) engageable with first and second side members (302,304) . The first and second side members are successively inserted into and positioned in the disc space one at a time. The middle member is then slidably engaged on rails extending from the respective first and second side members. Eventually, the middle member is moved along the guides and positioned between the respective first and second side members and the guides or rails are detached. Optionally, a cushioning and/or biasing member (308) may be located between upper and lower portions of the side members and/or middle member.

La présente invention se rapporte en général à un disque modulaire qui peut être introduit par sections dans un espace intervertébral situé entre des corps vertébraux. Les segments primaires du disque modulaire se présentent sous la forme d'un ou plusieurs éléments centraux pouvant venir en prise avec des premier et second élément latéraux. Les premier et second éléments latéraux sont introduits et positionnés successivement, un par un, dans l'espace intervertébral. L'élément central est ensuite engagé de manière coulissante sur des rails qui s'étendent depuis les premier et second éléments latéraux respectifs. Enfin, l'élément central est déplacé le long des guides, et est positionné entre les premier et second éléments latéraux respectifs, et les guides ou rails sont détachés. Un élément d'amortissement et/ou de sollicitation peut être placé entre les parties supérieure et inférieure des éléments latéraux et/ou de l'élément central.

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