Dynamic fixation device and method of use
OwnerStephen Ritlandinventor
Life of this patent
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Abstract
A dynamic fixation device is provided that allows the vertebrae to which it is attached to move in flexion within the normal physiological limits of motion, while also providing structural support that limits the amount of translation motion beyond normal physiological limits. The present invention includes a flexible portion and two ends that are adapted for connection to pedicle screws.
Claims20
An implant device for flexibly linking at least two vertebra of a spine of a patient, comprising:
- a rod portion including a first end having a first cross-sectional area, a second end having a second cross-section area, and a first center section disposed between said first end and said second end, said first center section having a smaller cross-sectional area than at least one of either said first cross-sectional area or said second cross-sectional area;
- and
- means for connecting said rod portion to the spine of the patient;
- wherein said first center section flexes when the patient bends their spine.
An implant device for flexibly linking at least two vertebra of a spine of a patient, comprising:
- a rod having a first end and second end;
- a flexible portion positioned between said first end and said second end, said flexible portion including an inverted T-shaped region comprising a first pair of reverse bends and a second pair of reverse bends.
In subcombination, an intervertebral bridge linkage device for flexibly fixating a first vertebra of a patient's spine to a second vertebra of the patient's spine, the linkage used in combination with a first connector mechanism and a first pedicle screw for interconnecting the linkage to the first vertebra, and a second connector mechanism and a second pedicle screw for interconnecting the linkage to the second vertebra, the linkage device comprising:
- a rod portion including a first end having a first cross-sectional area, a second end having a second cross-section area, and a first center section disposed between said first end and said second end, said first center section having a smaller cross-sectional area than at least one of either said first cross-sectional area or said second cross-sectional area;
- wherein said first center section flexes when the patient bends their spine.
Dependencies are inferred from the claim text.