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Four-side distractible interbody fusion cage

An intervertebral cage and wedge surface technology, applied in medical science, prosthesis, spinal implants, etc., can solve the problem of low stability of the intervertebral cage, restore the physiological curvature of the spine, relieve compression, and ensure The effect of spinal stabilization

Active Publication Date: 2018-06-01
博能华医疗器械(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intervertebral fusion device has a good curative effect on the above spinal diseases. It is simple to operate, easy to use, has a high fusion rate, and has no complications of bone graft fusion. It has been widely used and clinically, but the existing intervertebral fusion device is stable. Not advanced defect

Method used

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  • Four-side distractible interbody fusion cage
  • Four-side distractible interbody fusion cage
  • Four-side distractible interbody fusion cage

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Experimental program
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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention is further described:

[0017] As shown in the accompanying drawings, a four-sided expandable intervertebral fusion device is characterized in that the intervertebral fusion device is composed of a fusion contact mechanism and a drive expansion mechanism, and the fusion contact mechanism is composed of an upper fusion contact assembly and a lower fusion contact assembly. Composed of fusion contact components, the upper fusion contact component is composed of a front upper fusion block 1 and a rear upper fusion block 2, and the two ends of the front upper fusion block 1 and the rear upper fusion block 2 are respectively provided with upper Wedge surface 3, the wedge surface at both ends of the front upper fusion block 1 is provided with an upward convex sliding column 4 that is gradually inclined towards the front from the bottom up, and the wedge surface at both ends of the rear upper fusion block 2 is...

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Abstract

The invention relates to the technical field of interbody fusion cage medical apparatuses, and in particular to a four-side distractible interbody fusion cage. The interbody fusion cage is composed ofa fusion contact mechanism and a driving distraction mechanism, wherein the fusion contact mechanism is composed of an upper fusion contact component and a lower fusion contact component; the upper fusion contact is composed of a front upper fusion block and a rear upper fusion block; the lower fusion contact component is composed of a front lower fusion block and a rear lower fusion block; grooves are kept in the inner sides of the front upper fusion block, the rear upper fusion block, the front lower fusion block and the rear lower fusion block; the driving distraction mechanism is composedof a left push component and a right push component; the left push component is composed of a left push block and a driving pull pipe; the right push component is composed of a right push block, a driving screw rod and a retainer ring. The interbody fusion cage provided by the invention has the advantages of recovering height and tension of a vertebral section, relieving compression, recovering physiological curvature of a spine, promoting synostosis, guaranteeing spine stability and the like.

Description

technical field [0001] The invention relates to the technical field of intervertebral fusion device medical equipment, in particular to a method of utilizing the distraction force of the intervertebral fusion device to restore the height and tension of the vertebral joints, realize the release of compression, restore the physiological curvature of the spine, and intervertebral fusion Organ bone fusion, a four-sided expandable intervertebral fusion device that ensures spinal stability. Background technique [0002] As we all know, degeneration of the spine is more common in orthopedic clinics. Common degeneration of the intervertebral disc, spinal stenosis, spondylolisthesis, and compression of the spinal cord or nerve roots often require surgical treatment to completely relieve the compression, restore the physiological curvature of the spine, and protect the spine. Stablize. In addition, some patients with spinal deformity, trauma, tumor, revision surgery and infection som...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2002/30518
Inventor 许振山齐继宗
Owner 博能华医疗器械(北京)有限公司
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