Artificial intervertebral disc

Details Artificial intervertebral disc Artificial intervertebral disc

A - Human Necessities

61

F

A61F 2/44 (2006.01)

Patent

CA 2607315

An artificial intervertebral disc for implantation between two adjacent vertebrae includes an outer casing, an inner casing contained within the outer casing, and a resilient nucleus contained within the inner casing. The inner and outer casings are formed, respectively, by two interlocking members. The resilient nucleus is biased against the two members forming the inner casing, thereby elastically separating same. The artificial disc includes various resistance means for restricting and limiting the range of rotational and translational motion between

L'invention concerne un disque intervertébral artificiel pour implantation entre deux vertèbres contiguës, qui comporte une enveloppe externe, une enveloppe interne logée à l'intérieur de l'enveloppe externe, et un noyau élastique logé dans l'enveloppe interne. Les enveloppes interne et externe sont formées, respectivement, par deux éléments autobloquants. Le noyau élastique est incliné contre les deux éléments formant l'enveloppe interne, les séparant ainsi de manière élastique. Le disque artificiel comporte divers moyens de résistance pour restreindre et limiter la portée du déplacement rotationnel et translationnel entre les deux.

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