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Minimally invasive lateral approach interbody fusion device

An intervertebral cage and lateral technology, which is used in the research field of thoracolumbar intervertebral disc implants, can solve the problems of long incision and heavy bleeding, and achieve the effects of reducing occlusion, convenient implantation and increasing friction.

Inactive Publication Date: 2014-03-05
广州聚生生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional open posterior lumbar fusion and transforaminal posterolateral fusion require long incisions and a lot of bleeding, requiring extensive muscle stripping and long-term stretching. Therefore, looking for a minimally invasive method is currently being used in clinical practice. has become a development trend

Method used

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  • Minimally invasive lateral approach interbody fusion device
  • Minimally invasive lateral approach interbody fusion device
  • Minimally invasive lateral approach interbody fusion device

Examples

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Embodiment 1

[0028] like figure 1 As shown, the fusion device for thoracolumbar interbody in this embodiment includes a main body and developing needles (21, 22, 23). The cross section of the main body is rectangular, and the inside is vertically hollow. The main body includes a head end 3, a terminal end 4, a front side wall 1, a rear side wall 8 and a central wall 10. The central wall 10 is arranged inside the main body and divides the main body cavity into a front bone graft cavity 11 and a rear bone graft cavity 12. During use, the fusion device is implanted between the vertebral bodies through a minimally invasive surgical channel. Since the fusion device connects the anterior column and the middle column area of ​​the vertebral body, in order to make the fusion device have a larger contact area, the length of the fusion device in this embodiment is the same as The length of the coronal plane of the human vertebral body is the same, the width is 70% to 80% of the width of the sagittal...

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Abstract

The invention discloses a minimally invasive lateral approach interbody fusion device used for interbody fusion operations. The interbody fusion device comprises a device body and a developing needle, the cross section of the device body is rectangular, the inside of the device body is hollow vertically and comprises a head end, a tail end and a center wall, the center wall is arranged in the device body and divides a device body cavity into a front bone grafting cavity and a rear bone grafting cavity, reversed teeth and a plurality of through holes are formed in the side wall of the device body, the tail end of the device body is provided with threaded through holes used for being connected with fusion device installing equipment, and the developing needle is arranged on the device body. The side face of the head end of the device body is in a bullet shape, the length of the fusion device is consistent with the length of the coronal plane of the human body centrum, the width of the fusion device is slightly smaller than that of the sagittal plane, and the height of the fusion device is consistent with that of interbody spaces. The minimally invasive lateral approach interbody fusion device fits human body characteristics in size, convenient to implant and easy to install, does not need to peel the erector spinae in a large range, maintains physiology and mechanics stability of the lumbar vertebra and creates good conditions for bone graft fusion of an outer side thoracolumbar spine fusion device and stabling and recovering the physiological curvature of the spinal column for the long time.

Description

technical field [0001] The invention relates to the research field of thoracolumbar intervertebral disc implants, in particular to a minimally invasive lateral approach intervertebral fusion device. Background technique [0002] With the aging of my country's population, adult degenerative scoliosis secondary to intervertebral disc and articular process degeneration has become a common disease among middle-aged and elderly people over 50 years old. Canal stenosis and segmental instability, although the course of the disease progresses slowly, the low back and leg pain will aggravate year by year, causing trouble to the patient. In particular, the detection rate of intervertebral disc herniation in the lower thoracic spine and thoracolumbar segment (T10-T12) has a clear upward trend. Once it occurs clinically, it is often accompanied by damage to the spinal cord, conus cone, and cauda equina. In severe cases, it can lead to paralysis. [0003] At present, there are two kinds ...

Claims

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Application Information

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IPC IPC(8): A61F2/44A61B17/70
CPCA61F2/44A61F2002/30001
Inventor 程顺巧尹泖谢坤张培发邹巍伟
Owner 广州聚生生物科技有限公司
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