Spinal hook
AssigneePhoenix Children's Hospital, Inc.
InventorDavid Bennett
Life of this patent
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Abstract
A hook anchor for anchoring a fixation rod to a bone is disclosed. The hook anchor includes a hook body shaped in a curve of diminishing radius and a locking mechanism. The locking mechanism is to securely fix the hook anchor to the fixation rod. The curve of diminishing radius may be the shape of at least a portion of a Fibonacci curve. The bone can include at least one of a rib, a pelvis, and a vertebra. The hook body can be configured to engage with at least one of a spinous process a transverse process, and a pedicle of the vertebra.
Claims14
A hook anchor for anchoring a fixation rod to a bone, comprising:
- a hook body shaped in a curve, wherein the curve is a closed logarithmic spiral and a first rotation vector defining a radius of curvature at a first end of the curve is rotated by at least 270 degrees from a second rotation vector defining a second radius of curvature at a second end of the curve;
- and
- a locking mechanism coupled to the hook body, the locking mechanism being configured to securely fix the hook anchor to the fixation rod.
A spine stabilization system, comprising:
- a fixation rod;
- a first hook anchor, including:
- a first hook body shaped in a curve, wherein the curve is a first closed logarithmic spiral and a first rotation vector defining a radius of curvature at a first end of the curve is rotated by at least 270 degrees from a second rotation vector defining a second radius of curvature at a second end of the curve, and
- a first locking mechanism coupled to the first hook body, the first locking mechanism being configured to securely fix the first hook anchor to the fixation rod at a first location on the fixation rod;
- and
- a second hook anchor, including:
- a second hook body shaped in a second curve, wherein the second curve is a second closed logarithmic spiral and a first rotation vector defining a radius of curvature at a first end of the curve is rotated by at least 270 degrees from a second rotation vector defining a second radius of curvature at a second end of the curve, and
- a second locking mechanism coupled to the second hook body, the second locking mechanism being configured to securely fix the second hook anchor to the fixation rod at a second location on the fixation rod.
Dependencies are inferred from the claim text.