A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/70 (2006.01)
Patent
CA 2476335
The present invention is directed to a device for connecting a longitudinal member to a bone, the device having a bone fixation means including a lower part for fixation to the bone and an upper part having a transverse channel for receiving the longitudinal member. The upper part also including a slit defining a pair of elastically displaceable sidewalls. The device further includes a locking ring which may be connected to the device before implantation and, after the longitudinal member is introduced into the transverse channel, the device may be locked simply by shifting the locking ring from a first position to a second position. That is, the locking ring is moveable from a first position, wherein the sidewalls are elastically displaceable so that the longitudinal member can be moved into the channel, to a second position, wherein the sidewalls are substantially fixed with respect to each other so that the longitudinal member placed within the channel is fixed with respect thereto. The device further including a first groove sized and configured to receive the locking ring when in the first position and a second groove sized and configured to receive the locking ring when in the second position.
L'invention concerne un dispositif pour relier un support longitudinal (11) à un os ou à un fragment d'os. Ce dispositif comprend A) un moyen de fixation pour os (1) comportant une partie inférieure (3) servant à la fixation à un os et une partie supérieure (2) servant à la liaison avec un support longitudinal (11), ainsi que B) une bague de serrage (15) qui peut être déplacée coaxialement sur la partie supérieure (2) et comporte un alésage central (22) de diamètre d. C) la partie supérieure (2) présente un canal (12) ouvert à l'extrémité supérieure (13) de la partie supérieure (2) et comportant un axe (21), transversal par rapport à l'axe longitudinal (5), destiné à recevoir un support longitudinal (11), ainsi que deux languettes (19) élastiquement déformables transversalement par rapport à l'axe (21) du canal. D) la bague de serrage (15) peut être mise dans une position dans laquelle les deux languettes (19) peuvent être pressées en direction de l'axe (21) du canal. Et E) la partie supérieure (2) comporte, entre son extrémité inférieure (14) et le canal (12), une gorge (8) concentrique par rapport à l'axe central (5) et présentant un diamètre de noyau DK1 qui est plus petit que le diamètre d de l'alésage central (22) de la bague de serrage (15).
Osler Hoskin & Harcourt Llp
Synthes (u.s.a.)
Synthes Usa Llc
LandOfFree
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