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US 12,702,449 B2Granted
Growing rod for treating spinal deformities and method for using same
AssigneeGlobus Medical, Inc.
InventorsJoshua Charest, Michael Meccariello, Francis Torrente, Derrick Bingaman, Jeffrey David Gordon, Jeff Nichols
Life of this patent
Estimating the term…
Abstract
An implantable growing rod assembly adapted to be secured along a length of a spine for treating deformities of the spine. The assembly includes a housing, a fixed rod extending along a longitudinal axis away from the housing, and an expansion rod extendible from the housing along the longitudinal axis. A driver assembly is fixed to the housing and adapted to translate the expansion rod along the longitudinal axis.
Claims17
An implantable growing rod assembly comprising:
- a housing;
- an internally threaded expansion tube mounted inside of the housing;
- a fixed rod extending along a longitudinal axis away from the housing;
- an expansion rod extendible from the housing along the longitudinal axis;
- a bevel gear assembly disposed in the housing and adapted to translate the expansion rod along the longitudinal axis, the bevel gear assembly including a bevel output gear having a plurality of gear teeth arranged circumferentially about the longitudinal axis and rotatable about the longitudinal axis;
- and
- a biased lock disposed in the housing and coupled to the bevel gear assembly, the biased lock including a locking bevel gear having a plurality of teeth arranged circumferentially around an axis which is lateral to the longitudinal axis and adapted to be coupled to the bevel output gear, the biased lock having a biased first position that prevents the bevel gear assembly from rotation and an unlocked second position configured to allow the bevel gear assembly to rotate to expand and collapse the expansion rod,
- wherein the bevel gear assembly includes a bevel pinion gear having teeth at one end and arranged to rotate simultaneously with the locking bevel gear.
5 more elements
An implantable growing rod assembly comprising:
- a housing;
- an internally threaded expansion tube mounted inside of the housing, wherein the internally threaded expansion tube is formed of PEEK;
- a fixed rod extending along a longitudinal axis away from the housing;
- an expansion rod extendible from the housing along the longitudinal axis;
- a bevel gear assembly disposed in the housing and adapted to translate the expansion rod along the longitudinal axis, the bevel gear assembly including a bevel output gear having a plurality of gear teeth arranged circumferentially about the longitudinal axis and rotatable about the longitudinal axis;
- and
- a biased lock disposed in the housing and coupled to the bevel gear assembly, the biased lock including a locking bevel gear having a plurality of teeth arranged circumferentially around an axis which is lateral to the longitudinal axis and adapted to be coupled to the bevel output gear, the biased lock having a biased first position that prevents the bevel gear assembly from rotation and an unlocked second position configured to allow the bevel gear assembly to rotate to expand and collapse the expansion rod,
- wherein the bevel gear assembly includes a bevel pinion gear having teeth at one end and arranged to rotate simultaneously with the locking bevel gear.
5 more elements
Dependencies are inferred from the claim text.