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US 6,139,549 AGranted
Spinal fixing device
AssigneeWaldemar Link GmbH & Co. KG
InventorArnold Keller
Life of this patent
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Abstract
Fixator for vertebra or bone fragments, with a rod and at least one pedicle screw which is to be secured thereon. The U-shaped head of the pedicle screw forms a receiving seat for the rod, which receives a fixing device for fixing the rod. The fixing device comprises a U-shaped clamping yoke whose legs can be connected with positive fit to the head of the pedicle screw and whose bridge holds a fixing screw. By means of the fixing screw, a U-shaped fixing yoke can be clamped with the ends of its legs against the rod, to the sides of the clamping yoke.
Claims12
A fixator for vertebra or bone fragments, comprising:
- (a) a rod;
- (b) at least one pedicle screw having a U-shaped head formed as a receiving seat for the rod;
- and
- (c) a fixing device for fixing the rod in the receiving seat, comprising:
- (i) a U-shaped clamping yoke having legs that can be connected to sides of the U-shaped head of the pedicle screw to provide a positive fit between said legs and said sides;
- (ii) a U-shaped fixing yoke;
- and
- (iii) a fixing screw that serves to connect a bridge of the fixing yoke to a bridge of the clamping yoke.
5 more elements
Dependencies are inferred from the claim text.