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US 12,690,894 B2Granted
Systems and methods for correcting spinal deformities
AssigneeNuVasive, Inc.
InventorsNiall Casey, Robert German, Scott Lish
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Abstract
The present invention relates generally to medical devices and methods generally aimed at spinal surgery. In particular, the disclosed system and associated methods relate to performing spinal fixation with the use of a deformity system.
Claims14
An anchor assembly comprising:
- a bone anchor;
- and
- a receiver assembly configured to polyaxially engage with the bone anchor, wherein the receiver assembly comprises:
- a receiver;
- and
- a collar positioned within the receiver, the collar configured to couple the bone anchor to the receiver, the collar comprising a first outer convex surface and a second outer convex surface opposite the first outer convex surface, wherein the first outer convex surface and the second outer convex surface are connected by two opposing exterior planar faceted surfaces configured to mate with a rounded feature of the receiver such that an outer shape of the collar is non-circular,
- wherein the receiver comprises a base and a pair of arms extending distally from the base.
4 more elements
Dependencies are inferred from the claim text.