A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/70 (2006.01)
Patent
CA 2669905
A vertebral support device (1) is disclosed, which in various embodiments comprises at least two osseous anchoring implants (2), each designed to be anchored to a vertebra, and at least one linking element (3) fixed to the osseous anchoring implants (2) by fasteners (20) that maintain a fixed angle between the longitudinal axis (L) of the linking element (3) passing through rigid elements (34) of the linking element (3) and the insertion axis (DV) of the implants (2). The linking element (3) includes at least one elastic dampening element (31) that that allows the implant-bearing vertebrae some freedom of movement. The dampening element (31) accommodates the stresses imposed on the linking element (3) during movement of the vertebrae and tends to return the support device (1) to its normal configuration.
L'invention concerne un dispositif de support vertébral (1), lequel, dans divers modes de réalisation, comprend au moins deux implants d'ancrage osseux (2), chacun étant mis au point pour être ancré à une vertèbre, et au moins un élément de liaison (3) fixé aux implants d'ancrage osseux (2) par des organes de fixation (20) qui maintiennent un angle fixe entre l'axe longitudinal (L) de l'élément de liaison (3) passant à travers des éléments rigides (34) de l'élément de liaison (3) et l'axe d'insertion (DV) des implants (2). L'élément de liaison (3) comprend au moins un élément d'amortissement élastique (31) qui permet aux vertèbres supportant l'implant une certaine liberté de mouvement. L'élément d'amortissement (31) reçoit les contraintes imposées à l'élément de liaison (3) pendant le mouvement des vertèbres et tend à ramener le dispositif de support (1) à sa configuration normale.
Bradley William Daniel
Chataigner Herve
Chen Zhongqiang
Cho Paul Henry
Davis Reginald James
Ldr Medical
Sim & Mcburney
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