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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0406895 (2003-04-04) |
발명자 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 334 인용 특허 : 214 |
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
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.
1. 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 fir
1. 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 section disposed between said first end and said second end, wherein said section further comprises an inverted T-shaped region comprising a first pair of reverse bends and a second pair of reverse bends, said 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 section flexes when the patient bends their spine. 2. The subcombination as claimed in claim 1, wherein said first pair of reverse bends is at an angle of greater than about 135 degrees.3. The subcombination as claimed in claim 2, wherein said second pair of reverse bends is at an angle of greater than about 135 degrees.4. The subcombination as claimed in claim 1, wherein said rod portion comprises a metal alloy.
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