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US 2022/0022919 A1Published application
Semi-constrained Anchoring System
AssigneeK2M, Inc.
InventorsSteven J. Seme, Thomas J. Gisel
Life of this patent
Estimating the term…
Abstract
Systems, devices, and associated methods for correcting spinal column deformities that help minimize a number of attachment anchors utilized for correction, facilitate use of straight or contoured rods, and/or help promote a more natural, physiologic motion of the spinal column.
Claims21
-20. (canceled)
A rod anchor for correcting a spinal deformity comprising:
- a mounting portion configured to secure the rod anchor to a first bony element and including a pedestal;
- a sleeve having a revolute, convex outer surface and a sleeve passage configured to receive a rod;
- and
- a ring-shaped receptacle portion supported by the pedestal, the ring shaped portion having a revolute concave inner surface defining a receptacle passage, the receptacle passage having a longitudinal axis passing through a center of the passage and configured to capture and substantially complementarily fit the sleeve.
1 more element
A rod anchor for correcting a spinal deformity comprising:
- a mounting portion configured to secure the rod anchor to a first bony element and including a pedestal and a stem extending from the pedestal;
- a substantially spherical sleeve defining a sleeve passage configured to receive a rod;
- and
- a ring-shaped receptacle portion fixed relative to the mounting portion and supported by the stem, the receptacle portion defining a receptacle passage, the receptacle passage having a longitudinal axis passing through a center of the receptacle passage, the receptacle passage defined by a substantially spherical mating race within the ring-shaped receptacle portion configured to allow the sleeve with the rod received therethrough to pivot in pitch and yaw about the longitudinal axis while being constrained from laterally translating relative to the longitudinal axis.
1 more element
A rod anchor for correcting a spinal deformity comprising:
- a mounting portion configured to secure the rod anchor to a first bony element and including a pedestal and a stem extending from the pedestal;
- and
- a ring-shaped receptacle portion having an inner surface defining a receptacle passage, the receptacle passage having a longitudinal axis passing through a center of the receptacle passage, the receptacle passage configured to receive a rod therethrough, and an outside surface from which the stem extends transverse to the longitudinal axis.
Dependencies are inferred from the claim text.