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US 12,582,447 B2Granted
Orthopedic extendable rods
AssigneeGlobus Medical, Inc.
InventorsBobby Lynch, Kurt Faulhaber
Life of this patent
Estimating the term…
Abstract
Embodiments herein are generally directed to extendable rods for use in orthopedic assemblies. In some embodiments, these implants may be used in conjunction with procedures to treat spinal deformities, including, but not limited to, early onset scoliosis.
Claims15
An extendable rod assembly, comprising:
- an elongate sleeve having a first end and a second end;
- a fixed rod attached to the elongate sleeve and extending in a second direction,
- an actuating rod at least partially disposed within the elongate sleeve and extending in a first direction, an annular space between the actuating rod and an interior surface of the elongate sleeve defining a first chamber, an interior space in the elongate sleeve between the fixed rod and the actuating rod defining a second chamber;
- and
- a valve assembly disposed within the elongate sleeve and adapted to automatically regulate a flow of fluid between the first and second chambers as the actuating rod grows
- wherein the valve assembly is adapted to regulate the flow in response to a change in fluid pressure between the two chambers
- wherein the valve assembly includes:
- an elongate valve body extending along a longitudinal axis of the elongate sleeve and slidably coupled to the actuating rod, the elongate valve body in communication with the second chamber
- a duct disposed in the actuating rod and in communication with the first chamber.
6 more elements
An extendable rod assembly, comprising:
- an elongate sleeve having a first end and a second end;
- a fixed rod attached to the elongate sleeve and extending in a second direction,
- an actuating rod at least partially disposed within the elongate sleeve and extending in a first direction, the actuating rod including a head and a rod extending from the head in the first direction, an annular space between the rod and an interior surface of the elongate sleeve defining a first chamber, an interior space in the elongate sleeve between the fixed rod and the actuating rod defining a second chamber, the head having a larger diameter than the rod and dividing the first chamber from the second chamber;
- and
- a valve assembly disposed within the elongate sleeve and adapted to automatically regulate a flow of fluid between the first and second chambers as the actuating rod grows,
- wherein the valve assembly includes a needle valve assembly disposed in the actuating rod.
3 more elements
Dependencies are inferred from the claim text.