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Backbone fixing system

A fixation system and spine technology, applied in the field of spinal fixation systems, can solve problems such as poor fixation effect, inability to solve the problem of spinal joint fixation, and no torsion of the affected part

Inactive Publication Date: 2011-07-27
林士闳 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] But said method also only solves the problem of fixing the vertebral joints between two bone nails, and cannot solve the problem of fixing the vertebral joints above three (including) bone nails, and this case connects the spherical body of the upper rod (the case label 10) (this case label 102), and the combination between the ball joint (this case label 111) connected to the lower rod (this case label 11), without a restraint mechanism, will cause the connection between the upper rod (this case label 10) and the connection of the lower rod. The angle between the rods (number 11 in this case) is not fixed, that is, the fixing effect is poor
In addition, the method does not have the function of twisting / stretching after the operation

Method used

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Examples

Experimental program
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Embodiment Construction

[0057] figure 1 It is a schematic diagram of a preferred specific exploded example of the spinal fixation system of the present invention. The number 110 is the first connecting rod, 111 is the blocking part, 120 is the second connecting rod, 121 is the blocking part, 122 is the groove, 200 is the disc-shaped adjusting washer, 210 is the raised part, and 220 is the disc part , 300 is a bone nail, 310 is a receiving portion, and 330 is a fixator. A disc-shaped adjusting washer 200 is installed between the first coupling rod 110 and the second coupling rod 120, and the disc-shaped adjusting washer 200 and the blocking portion 111 of the first coupling rod 110 are connected to the blocking portion 121 of the second coupling rod 120. The receiving portion 310 of the bone screw 300 is placed to limit the adjustable angle of the first coupling rod 110 and the second coupling rod 120 , and the disc portion 220 with an inclined angle of the disc-shaped adjusting washer 200 limits th...

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PUM

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Abstract

The invention relates to a backbone fixing system, in particular to an angle-adjustable backbone fixing system. The backbone fixing system disclosed by the invention comprises a plurality of bone fixing devices, an adjusting shim, a plurality of fixing devices and a plurality of connecting rods. A near end of each bone fixing device is a connecting end, a far end of each bone fixing device is used for fixing vertebra joints to be fixed, and the connecting end is provided with a bearing part. The adjusting shim is arranged between two adjacent connecting rods, and the adjusting shim and the connecting rods are arranged in the bearing parts of the bone fixing devices and are fixed in the bearing parts of the bon fixing devices by the plurality of fixing device.

Description

technical field [0001] The invention relates to a spinal fixation system, in particular to an angle-adjustable spinal fixation system. Background technique [0002] In spinal fixation, fixation rods are often used as auxiliary fixation devices, but because the spine is not in a straight line, the joints of the vertebrae are usually not parallel, such as lordosis in the lumbar spine. Therefore, if the fixed rods that are originally in a straight line are directly combined and fixed with a plurality of bone screws implanted in the vertebral joints to be fixed, it will force the vertebral joints to be fixed that are not in a straight line to become in a straight line, and make the original non-linear The parallel vertebrae to be fixed become parallel. [0003] In order to avoid the above deficiency, the medical community has proposed various improved structures, such as: [0004] 1. Solve the problem with angled screws (angled screw), such as US-5,176,679, US-5,196,014, US-5,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
Inventor 林士闳卢士钧林士斌
Owner 林士闳