发明名称 |
TRANSPEDICULAR SCREW SYSTEM AND METHOD OF USE |
摘要 |
An apparatus is provided for the internal fixation of the spine. The apparatus comprises two sets of implants (8) each consisting of a rod (18) and a plurality of vertebral anchors (16). The rod (18) is secured to the vertebral elements by the vertebral anchors (16). The anchor (16) includes a transpedicular screw (21) which is secured to a vertebrae. The anchor (16) further includes an anchor seat (23) which captures the screw (21) and permits micromotion between the anchor seat (23) and screw (21). This seat (23) has a rod-receiving channel (51, 52) which captures the rod (18). A cap (25) cooperates with the seat (23) to secure the rod (18) in the anchor (16). A nut (27) screws down from the top of the assembly onto the seat (23) to cause rod (18) receiving flanges (46, 47) in the cap (23) to apply a compressive force to the rod (18). A method of therapy is presented in which the present implants (8) are inserted surgically into a patient. |
申请公布号 |
WO9116020(A1) |
申请公布日期 |
1991.10.31 |
申请号 |
WO1990US02286 |
申请日期 |
1990.04.26 |
申请人 |
DANNINGER MEDICAL TECHNOLOGY, INC. |
发明人 |
PUNO, ROLANDO, M.;MELLINGER, PHILLIP, A. |
分类号 |
A61B17/70;A61B17/86;A61B17/88;C12N9/12 |
主分类号 |
A61B17/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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