A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/44 (2006.01) A61B 17/02 (2006.01) A61F 2/46 (2006.01) A61L 27/00 (2006.01)
Patent
CA 2540525
An intervertebral fusion device (10) includes a body (12, 20) having a proximal portion along a major axis of the body and a distal portion along the major axis, and supporting means (50) at the distal portion. The supporting means supports vertebrae in a distracted position while the vertebrae fuse. At least one of the body and the supporting means has a height distinct from a width, whereby the body or supporting means can distract vertebrae, between which the body or the supporting means has been placed, by rotation of the body or the supporting means about the major axis. A method of fusing vertebrae includes the steps of inserting between two vertebrae an intervertebral fusion device and rotating the body or the supporting means, whereby the vertebrae are supported in a distracted position while the vertebrae fuse.
L'invention concerne un dispositif de fusion intervertébrale (10) comprenant un corps (12, 20) doté d'une partie proximale sur un axe principal du corps et d'une partie distale le long de l'axe principal, ainsi qu'un élément support (50) sur la partie distale. L'élément support soutient la vertèbre en position de distraction pendant la fusion vertébrale. Le corps ou l'élément support au moins a une hauteur différente de la largeur, le corps ou l'élément support pouvant effectuer une distraction des vertèbres, entre lesquelles le corps ou l'élément support a été placé, par rotation du corps ou de l'élément support autour de l'axe principal. Dans un mode de réalisation courant, le corps du dispositif est un instrument d'implantation et l'élément support est un implant de fusion intervertébrale. L'invention concerne également un procédé de fusion vertébral consistant à insérer entre deux vertèbres un dispositif de fusion intervertébral et à faire tourner le corps ou l'élément support, les vertèbres étant maintenues dans une position de distraction pendant la fusion vertébrale.
Dimauro Thomas M.
Serhan Hassan
Slivka Michael
Depuy Spine Inc.
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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