Flexible implant using partially demineralized bone

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/44 (2006.01) A61F 2/46 (2006.01) A61L 27/36 (2006.01) A61B 17/88 (2006.01) A61F 2/00 (2006.01) A61F 2/28 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2358455

Implantable devices (10) useful for creating bony fusion particularly in intervertebral spinal fusion. The device (10) is formed of bone and has an at least partially demineralized portion (16) between two rigid bone portions (12 and 14) creating an area of flexibility. In one application, the area of flexibility may be used to move the device between a reduced size insertion configuration (Fig. 2) and an expanded implanted configuration (Fig. 3). In another use, the area of flexibility may be useful to dampen shock applied to the implant (Fig. 8). A method is also disclosed for making the implants and inserting the implants into an intervertebral disc space to promote interbody fusion.

L'invention porte sur des dispositifs implantables (10) utiles pour créer la fusion osseuse, plus particulièrement la fusion médullaire intervertébrale. Le dispositif (10) est formé d'os et comporte au moins une partie (16) partiellement déminéralisée située entre deux parties (12 et 14) d'os rigides formant une zone de flexibilité. Dans une application, la zone de flexibilité peut servir à déplacer le dispositif entre une configuration (figure 2) d'insertion de taille réduite et une configuration (figure 3) implantée élargie. Dans une autre utilisation, la zone de flexibilité peut être utile pour amortir le choc supporté par l'implant (figure 8). On décrit également un procédé de fabrication desdits implants et d'insertion de ces derniers dans un espace de disque intervertébral pour favoriser la fusion entre les corps.

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