A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/70 (2006.01)
Patent
CA 2516323
Interspinous device for impeding the movements of two successive vertebrae (8, 9) of the spinal column, characterized in that it comprises: - two pads (2a, 2b; 11a, 11b; 20a, 20b) whose internal faces (3a, 3b; 12a, 12b) are intended to be pressed against the lateral faces of the spinous processes (6, 7) of the said vertebrae (8, 9), - and ligaments (4, 5a, 5b, 5c, 5d; 17a, 17b, 18, 19; 23, 24) which connect the said pads (2a, 2b; 11a, 11b; 20a, 20b) to each other and to the said spinous processes (6, 7), so that, during flexion and extension movements of the spinal column with respect to its normal position, the pressures exerted against the lateral faces of the spinous processes (6, 7) by the said pads (2a, 2b; 11a, 11b; 20a, 20b) increase as the spinal column moves away from the said normal position. Method for making a pad designed for such a device.
L'invention porte sur un dispositif interépineux destiné à entraver les déplacements de deux vertèbres successives (8, 9) de la colonne vertébrale, ce dispositif étant caractérisé en ce qu'il comprend: - deux plaques (2a, 2b; 11a, 11b; 20a, 20b) dont les faces internes (3a, 3b; 12a, 12b) sont destinées à être comprimées contre les faces latérales des apophyses épineuses (6, 7) des vertèbres précitées (8, 9), - et des ligaments (4, 5a, 5b, 5c, 5d; 17a, 17b, 18, 19; 23, 24) qui raccordent les plaques (2a, 2b; 11a, 11b; 20a, 20b) entre elles et aux apophyses épineuses (6, 7), de sorte que, lors des mouvements de flexion et d'extension de la colonne vertébrale par rapport à sa position normale, les pressions exercées contre les faces latérales des apophyses épineuses (6, 7) par lesdites plaques (2a, 2b; 11a, 11b; 20a, 20b) augmentent au moment où la colonne vertébrale s'écarte de sa position normale. L'invention porte également sur un procédé de fabrication d'une plaque conçue pour ce dispositif.
Gournay Jose
Maxy Philippe
Robic
Sdgi Holdings Inc.
Warsaw Orthopedic Inc.
LandOfFree
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