Spinal fixation system and pedicle clamp
AssigneeAMEI Technologies Inc.
InventorsCasey K. Lee, Erik J. Wagner
Life of this patent
Estimating the term…
Abstract
A spinal fixation system is provided with pedicle clamps having multiple hooks for engagement with selected portions of a patient's vertebrae. The pedicle clamp includes three hooks which may be slidably positioned relative to each other to securely engage exterior surfaces of the lamina. A surgical tool is also provided to securely position the hooks with respect to each other on the exterior of the lamina. The surgical tool includes a fork for engaging the movable hooks of the pedicle clamp and a wrench for locking the movable hooks relative to each other and the pedicle clamp.
Claims27
A surgically implanted posterior spinal fixation system comprising:
- a plurality of pedicle clamps with each pedicle clamp having three hooks for attaching the respective pedicle clamps to selected vertebrae of a patient's spinel
- each of the pedicle clamps having a body means with one of the three hooks comprising a fixed hook extending therefrom from the body means:
- the three hooks further comprising a pair of movable hooks slidably attached to the body means;
- and
- means for releasably locking the pair of movable hooks to the respective body means.
A surgically implanted posterior spinal fixation system having a plurality of pedicle clamps with each pedicle clamp comprising:
- a fixed hook extending therefrom;
- a pair of movable hooks slidably attached thereto;
- and
- means for releasably locking the movable hooks with respect to the fixed hook for attaching the respective pedicle clamp to a selected vertebrae of a patient's spine.
A pedicle clamp for attaching a surgical construct to a selected portion of a patient's spine comprising:
- a fixed hook and a pair of movable hooks for attaching the clamp to the selected portion of the patient's spine;
- a clamp body with the fixed hook extending therefrom;
- the pair of movable hooks slidably attached to the clamp body;
- means for releasably locking the movable hooks relative to each other and the clamp body;
- matching tongues and grooves on the exterior of the clamp body and the interior of each movable hook;
- the tongues and grooves cooperating to provide a portion of the means for releasably locking the movable hooks to the clamp body;
- and
- a locking screw engaged with a threaded opening in the clamp body providing an additional portion of the means for releasably locking the movable hooks to the clamp body.
Dependencies are inferred from the claim text.