Endoscopic reset type lumbar spondylolisthesis interbody fusion cage

A technology for intervertebral cage and lumbar spondylolisthesis, which is applied in the direction of spinal implants, etc., can solve problems such as being unsuitable for minimally invasive surgery, and achieve the effect of increasing height, maintaining height, and reducing combined height.

Active Publication Date: 2020-04-10
THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, with the rapid development of clinical medicine, biomechanics and material science, in order to treat people's diseases, therapists use posterior lumbar intervertebral fusion to treat patients, and the fusion device is a necessary equipment for treatment. However, new types of fusion devices continue to emerge. Taking materials as examples, carbon fiber polyetheretherketone and absorbable material intervertebral fusion devices have appeared; taking shapes as examples, there have been rectangular, bullet-shaped, anatomical intervertebral fusion devices, etc. However, many lumbar intervertebral fusion devices are designed based on open surgery and are not suitable for minimally invasive surgery.

Method used

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  • Endoscopic reset type lumbar spondylolisthesis interbody fusion cage
  • Endoscopic reset type lumbar spondylolisthesis interbody fusion cage
  • Endoscopic reset type lumbar spondylolisthesis interbody fusion cage

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Embodiment Construction

[0022] Such as figure 1 , 2 , 3, 4, 5, 6, and 7, a kind of endoscopic reduction type spondylolisthesis intervertebral fusion device, including a fusion device and a holding device, and a threaded connection is adopted between the fusion device and the holding device; the fusion device includes Fixed plate 1, fixed plate 1 adopts a right-angled trapezoidal truss structure, one side of the inclined surface of fixed plate 1 is provided with a moving plate 2, the shape of the moving plate 2 is symmetrical to that of the fixed plate 1, and the moving plate 2 and the fixed plate 1 form a cuboid structure , the inclined surface of the fixed plate 1 is provided with a limit guide rail 3, the limit guide rail 3 and the fixed plate 1 are integrally structured, and the corresponding limit guide rail 3 on the side wall of the movable plate 2 is provided with a limit groove 4, and the shape of the limit groove 4 Consistent with the outer shape of the limit guide rail 3, the fixed plate 1 ...

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Abstract

The invention relates to the technical field of medical treatment equipment, and in particular to an endoscopic reset type lumbar spondylolisthesis interbody fusion cage which comprises a fusion device and a holding device. The fusion device is in threaded connection with the holding device. The invention provides the endoscopic reset type lumbar spondylolisthesis interbody fusion cage which is convenient to use, small in combination height, convenient to pass through a narrow working channel, capable of increasing the height after intervertebral space combination, capable of achieving the purposes of expanding and maintaining the intervertebral space height, capable of preventing the fusion cage from retreating, reliable in fixation and convenient to disassemble and assemble, and is usedfor overcoming the defects in the prior art.

Description

technical field [0001] The invention relates to the technical field of medical treatment equipment, in particular to a mirror-reduced lumbar spondylolisthesis intervertebral fusion device. Background technique [0002] With the development of society, as people work for a long time, people's spine will have scoliosis, degenerative disc disease, disc herniation, osteoporosis, spondylolisthesis and other lesions, resulting in spinal deformation, pain, nerve damage and Partial or complete loss of mobility. [0003] In recent years, with the rapid development of clinical medicine, biomechanics and materials science, in order to treat people's diseases, therapists use posterior lumbar intervertebral fusion to treat patients, and the fusion device is a necessary equipment for treatment. However, new types of fusion devices continue to emerge. Taking materials as examples, carbon fiber polyetheretherketone and absorbable material intervertebral fusion devices have appeared; taking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2/447
Inventor 李峰许志明谢政皮国富
Owner THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV
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