发明授权
- 专利标题: Vertebral disc annular fibrosis tensioning and lengthening device
- 专利标题(中): 椎间盘环状纤维化张力加长装置
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申请号: US11646750申请日: 2006-12-28
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公开(公告)号: US07666211B2公开(公告)日: 2010-02-23
- 发明人: Miquelangelo J. Perez-Cruet , John R. Pepper , John A. Miller
- 申请人: Miquelangelo J. Perez-Cruet , John R. Pepper , John A. Miller
- 申请人地址: US MI Bloomfield Hills
- 专利权人: MI4SPINE, LLC
- 当前专利权人: MI4SPINE, LLC
- 当前专利权人地址: US MI Bloomfield Hills
- 代理机构: Miller IP Group, PLC
- 代理商 John A. Miller
- 主分类号: A61B17/70
- IPC分类号: A61B17/70
摘要:
A vertebral disc annular fibrosis tensioning and lengthening device that restores the loss of disc height as a result of disc degeneration and other factors. The vertebral disc annular fibrosis tensioning and lengthening device includes pedicle screws having heads with cup-shaped cavities. The pedicle screws are threaded into the vertebral bodies of adjacent vertebrae through the pedicles so that open parts of the heads of the pedicle screws face each other. A spring is inserted into the cup-shaped cavities in compression so that the spring bias forces the pedicle screws apart, thus increasing the height of the disc space.
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