A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/86 (2006.01) A61B 17/80 (2006.01)
Patent
CA 2717336
A locking mechanism assembly to allow locking of a fastener in an orthopedic implant having its axis at a variable angle relative to the axis of a threaded through opening in the implant. The assembly includes a convexly rounded ring shaped locking insert which mates with the through opening. The head of the fastener includes a concentric flange that engages the locking ring into a locking relationship with the threads of the opening as the fastener is tightened into position. Preferably the locking ring is integral with the head of the fastener. The locking ring is made from a material that is more deformable than the material of the plate.
La présente invention concerne un ensemble mécanisme de blocage permettant de bloquer une pièce de fixation dans un implant orthopédique dont laxe présente un angle variable par rapport à laxe dune ouverture traversante filetée dans limplant. Lensemble inclut un insert de blocage en forme de bague arrondie de manière convexe, qui sapparie avec louverture traversante. La tête de la pièce de fixation inclut un rebord concentrique qui vient en contact avec la bague de blocage dans une relation de blocage avec la partie filetée de louverture lorsque la pièce de fixation est serrée en position. De préférence, la bague de blocage fait partie intégrante de la tête de la pièce de fixation. La bague de blocage est faite dans un matériau qui est plus déformable que le matériau de la plaque.
Kay David B.
Lewis Derek
Orthohelix Surgical Designs Inc.
Ridout & Maybee Llp
LandOfFree
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