A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/17 (2006.01) A61F 2/46 (2006.01) A61B 17/00 (2006.01) A61B 17/02 (2006.01) A61B 17/70 (2006.01) A61F 2/44 (2006.01)
Patent
CA 2476578
The invention relates to an apparatus for preparing an intervertbral space in order to receive an intervertebral-joint prosthesis. Said apparatus comprises a fixing and guiding device (4) which is fixed to the two vertebral bodies (2) concerned. Said device is used for fixing the vertebral bodies to each other and for guiding a processing tool. An adjusting instrument (11, 12) is provided so that the fixing and guiding device (4) can be arranged exactly on the vertebral body clip (2) despite difficult operating conditions. With the help of said adjusting instrument, the fixing and guiding device (4) is positioned before being fixed to the vertebral bodies. Said adjusting instrument (11, 12) comprises a intervertebral plate (11), the extension thereof corresponding approximately to the intervertebral area. As a result, the adjusting device is positioned exactly in relation to the vertebral body (2).
Dispositif destiné à préparer un espace intervertébral en vue de la pose d'une prothèse articulaire intervertébrale, qui comporte un élément de fixation et de guidage (4) destiné à être fixé sur les deux corps vertébraux concernés (2), ledit élément servant à fixer les corps vertébraux l'un contre l'autre et à guider un outil de traitement. Pour que l'élément de fixation et de guidage (4) puisse être placé précisément sur les corps (2) vertébraux, malgré des conditions opératoires difficiles, le dispositif selon la présente invention comporte un instrument d'alignement (11, 12) à l'aide duquel l'élément de fixation et de guidage est positionné avant d'être fixé aux corps vertébraux. L'instrument d'alignement (11, 12) comporte une plaque intervertébrale (11) dont l'extension correspond environ à l'espace intervertébral, ce qui permet un positionnement précis de l'instrument d'alignement par rapport aux corps vertébraux (2).
Keller Arnold
Mcafee Paul C.
Cervitech Inc.
Marks & Clerk
LandOfFree
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