Multi-axial transverse rod connector
AssigneeAlphatec Spine, Inc.
InventorThomas Purcell
Life of this patent
Estimating the term…
Abstract
A multi-axial rod connector for connecting spinal rods is provided. The rod connector includes a poly-axial rod assembly configured to include a lateral translation mechanism and a fixed hook configured to be rigidly coupled to one end of the poly-axial rod assembly. The fixed hook includes a fixed hook cavity configured to secure a spinal rod. The rod connector also includes a variable hook configured to be rotatably coupled another end of the poly-axial rod. The variable hook includes a variable hook cavity configured to secure another spinal rod. The lateral translation mechanism is configured to change distance between the fixed hook and the variable hook.
Claims18
A multi-axial rod connector, comprising:
- a poly-axial rod assembly configured to include a lateral translation mechanism;
- a fixed hook configured to be rigidly coupled to a first end of said poly-axial rod assembly, wherein said fixed hook includes a fixed hook cavity configured to secure a first spinal rod;
- a variable hook configured to be rotatably coupled to a second end of said poly-axial rod assembly, wherein said variable hook includes a variable hook cavity configured to secure a second spinal rod;
- a bushing disposed between said second end of said poly-axial rod assembly and said second spinal rod;
- and
- a second rod locking setscrew disposed within said variable hook on an opposite side of said second spinal rod as said poly-axial rod assembly and configured to contact said second spinal rod to force said second spinal rod against said bushing and towards said second end of said poly-axial rod assembly,
- wherein said lateral translation mechanism is configured to change distance between said fixed hook and said variable hook.
A method of securing a plurality of spinal rods using a multi-axial rod connector,
- wherein the multi-axial rod connector includes
- a poly-axial rod assembly configured to include a lateral translation mechanism,
- a fixed hook configured to be rigidly coupled to a first end of the poly-axial rod assembly, wherein the fixed hook includes a fixed hook cavity configured to secure a first spinal rod,
- a variable hook configured to be rotatably coupled to a second end of the poly-axial rod assembly, wherein the variable hook includes a variable hook cavity configured to secure a second spinal rod;
- a bushing disposed between said second end of said poly-axial rod assembly and said second spinal rod;
- and
- a second rod locking setscrew disposed within said variable hook on an opposite side of said second spinal rod as said poly-axial rod assembly and configured to contact said second spinal rod to force second spinal rod against said bushing and towards said second end of said poly-axial rod assembly,
- and wherein the lateral translation mechanism is configured to change distance between the fixed hook and the variable hook,
- comprising the steps of
- adjusting and fixating the distance between the fixed hook and the variable hook using the lateral translation mechanism;
- inserting the first spinal rod into the fixed hook cavity and securing the first spinal rod in the fixed hook cavity using a first rod locking setscrew;
- inserting the second spinal rod into the variable hook cavity;
- rotatably adjusting an orientation of the variable hook;
- securing the second spinal rod in the variable hook cavity;
- and
- adjusting said second rod locking setscrew to force said second spinal rod and said bushing towards said second end of said poly-axial rod assembly.
Dependencies are inferred from the claim text.