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Lumbar interbody fusion cage

An intervertebral cage and cage technology are applied in the field of lumbar intervertebral cages and can solve the problems of inconvenient fixation of the lumbar intervertebral cage.

Inactive Publication Date: 2017-02-15
WINNTI MEDICAL TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned defects of the prior art, in order to solve the technical problem of inconvenient fixation of the lumbar intervertebral fusion device in the prior art, the present invention provides a lumbar fusion device that is easy to operate, does not increase surgical trauma, and can be fixed after implantation. Intervertebral Fusion

Method used

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  • Lumbar interbody fusion cage
  • Lumbar interbody fusion cage
  • Lumbar interbody fusion cage

Examples

Experimental program
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Embodiment 1

[0025] Such as figure 1 , 2 As shown, a lumbar intervertebral fusion device provided in this embodiment includes a fusion device body 1, a tail plate 2, and a spreader nail 3; Cavity, the upper, lower, left and right sides of the fusion device body 1 have perspective windows 11, and the upper and lower sides of the fusion device body 1 that are in contact with the upper and lower vertebrae respectively have protrusions that increase friction The tail plate 2 is detachably connected to the rear side of the fuser body 1, the expansion nail 3 includes a first expansion nail 31 and a second expansion nail 32, the tail plate 2 and the Between the fusion device body 1 there is a first expansion nail chamber for accommodating the first expansion nail 31 and a second expansion nail cavity for accommodating the second expansion nail 32, the first expansion nail cavity There is an upward opening, and the cavity of the second spreading nail 32 has a downward opening; the first spreadin...

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Abstract

The invention discloses a lumbar interbody fusion cage. The lumbar interbody fusion cage comprises a fusion cage body, a tail plate and a distraction nail, wherein a cavity for containing a bone graft is formed in the fusion cage body; the tail plate is detachably connected to the rear side surface of the fusion cage body; the distraction nail comprises a first distraction nail and a second distraction nail; the first distraction nail is configured to be driven into the upper segment of a vertebra; and the second distraction nail is configured to be driven into the lower segment of the vertebra. The lumbar interbody fusion cage has the beneficial effects that location moving such as withdrawal of the fusion cage can be prevented, so that the fusion cage can be located relatively well; meanwhile, the distraction nails are driven into the upper segment of the vertebra and lower segment of the vertebra in a vertical direction; and after the fusion cage is implanted, a human body is upright, and the possibility of stress fracture does not occur.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a lumbar intervertebral fusion device. Background technique [0002] Minimally invasive spinal surgery is an extremely important treatment for degenerative lumbar disc disease. There are many types of minimally invasive spinal surgery, among which lumbar interbody fusion has the advantages of small incision, small trauma, less postoperative pain, short hospital stay, and quick recovery. , The intervertebral fusion cage implanted in the intervertebral space of the lower vertebra can effectively restore the height of the intervertebral space and the volume of the intervertebral foramen, which is beneficial to disperse the load-bearing stress and reduce the pressure on the bone graft. [0003] The conventional intervertebral fusion cage is a hollow hexahedron. In the application of lumbar intervertebral fusion, the intervertebral fusion cage needs to be equipped with a fixed plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61B17/70
CPCA61B17/7074A61B2017/564A61F2/4455
Inventor 唐康来
Owner WINNTI MEDICAL TECH SHANGHAI CO LTD
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