Dynamic spinal internal fixation system
A technology for fixing system and spine, applied in the field of dynamic spinal internal fixation system, can solve the problems of affecting physiological function, aggravating the degeneration of adjacent segments, etc., and achieve the effects of convenient clinical operation, simple production and processing, and recovery of activity.
Inactive Publication Date: 2009-12-16
KANGHUI MEDICAL INNOVATION
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Problems solved by technology
Disadvantages are: aggravated degeneration of adjacent segments, conversion syndrome, and may affect some physiological functions
Method used
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[0029] Refer to attached Figure 1-10 , The dynamic spinal internal fixation system is composed of connecting rod 3, U-shaped pedicle screw 7, locking screw 8, ball head pedicle screw 1, limit screw 2 and so on. Wherein, one end of the connecting rod 3 is provided with a long-waisted connection block 3-1, a long-waisted through hole 3-2 is arranged in the long-waisted connection block 3-1, and a long-waisted through-hole 3-2 is provided at the bottom of the long-waisted through-hole. The spherical hole 3-3, the section 3-4 of the connecting rod 3 is cylindrical, waist-shaped or square; the head of the ball-headed pedicle screw 1 is hemispherical 1-2, and a Hexagonal hole or plum blossom hole 1-4, a section of threaded hole 1-3 is provided under the hole, a section of bone thread is provided at the tail 1-1 of the ball head pedicle screw, and the ball head pedicle screw 1 is installed on the length of the connecting rod 3 In the waist-shaped spherical hole 3-3, and can slide i...
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The invention relates to a dynamic spinal internal fixation system, belonging to the technical field of medical apparatus and instruments in spinal surgery; the dynamic spinal internal fixation system is composed of a connecting rod, a U-shaped pedicle of vertebral arch nail, a locking screw, a ball joint pedicle of vertebral arch nail, and a limit screw; wherein one end of the connecting rod is provided with a long-waist connecting block, a long-waist through hole is arranged in the long-waist connecting block, a long-waist spherical hole is arranged at the lower part of the long-waist through hole; the ball joint pedicle of vertebral arch nail is arranged in the long-waist spherical hole of the connecting rod and can slide in the hole, the limit screw is connected with a screwed hole limit in the head part of the ball joint pedicle of vertebral arch nail by the long-waist through hole of the connecting rod, the connecting rod is arranged on a U-shaped groove of a plurality of the U-shaped pedicle of vertebral arch nails and is pressed by the locking screw, and leads the U-shaped pedicle of vertebral arch nail and the ball joint pedicle of vertebral arch nail to be connected, thereby forming a dynamic spinal pedicle group of vertebral arch nails, and two dynamic spinal pedicle groups of the vertebral arch nails form the dynamic spinal internal fixation system.
Description
technical field [0001] The invention relates to a dynamic spinal internal fixation system, which belongs to the technical field of spinal surgery medical instruments. Background technique [0002] With the development of medical foundation, related disciplines and industrial technology, many basic concepts, diagnostic standards, treatment concepts and treatment methods in the field of spinal surgery have been continuously improved, and the level of diagnosis and treatment of spinal surgery has continued to improve. A variety of spinal internal fixation systems have appeared on the market . In the 1980s, the pedicle screw technology was used to treat various spinal diseases. In the 1990s, the fusion device system was applied. One or two adjacent vertebrae are fused to form a whole. Currently, spinal fusion is still the main treatment for degenerative spinal instability. The advantages of this fusion surgery technique are: bony fusion of the diseased segment, elimination of ...
Claims
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Inventor 杨利波山卫东王志敏王彤王小祥蒋庆幸丁伟王爱平蒋凯崔建培彭豪
Owner KANGHUI MEDICAL INNOVATION