Integral lumbar intervertebral titanium plate fusion apparatus

A technology of lumbar intervertebral titanium and fusion cages, applied in the field of intervertebral fusion cages, can solve the problems of not being able to fully expose the side of adjacent vertebral bodies, difficult to find the fixed position, and difficult screw operation, so as to reduce surgical trauma and reduce surgical costs. Cost, reduce the effect of surgical trauma

Active Publication Date: 2013-01-09
THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Even if the ordinary fixation plate is directly implanted on the side of the vertebral body without using the posterior pedicle screw for auxiliary fixation, there are still the following problems: the operation space under the expansion tube of the lateral approach is limited, and the exposed surgical area is mainly the target The side of the intervertebral disc and some parts adjacent to the side of the vertebral body up and down cannot fully expose the side of the adjacent vertebral body. This makes it difficult to find the fixed position after implanting the intervertebral fusion cage and then implanting the ordinary fixation plate through the placer, which also makes the screw fixation The operation is difficult, prolonging the operation time and increasing the operation trauma

Method used

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  • Integral lumbar intervertebral titanium plate fusion apparatus
  • Integral lumbar intervertebral titanium plate fusion apparatus
  • Integral lumbar intervertebral titanium plate fusion apparatus

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Embodiment 1

[0023] Such as figure 1 , Figure 5 The shown integrated lumbar intervertebral titanium plate fusion device includes a fusion device body 1 composed of a left support section, a right support section and a threaded section. The shape of the fusion device body 1 matches the contact surface of the vertebral body endplate. There is a cavity 101 in the fuser body 1, and the two sides of the threaded section have tooth-shaped threads 102 for strengthening the gripping force. There are through holes 103 communicated with the cavity 101 on the left supporting section, the right supporting section, and the threaded section. , for the entry of substances such as bone cells.

[0024] On the end face of the left support section, there is a titanium plate 11 integrally formed with the cage body 1, that is, the titanium plate 11 is integrally formed with the cage body 1, so as to save the operation of grasping the titanium plate 11 and aligning it with a fixed position with a placer , sh...

Embodiment 2

[0028] The difference between the second embodiment and the first embodiment is that the integrated lumbar intervertebral titanium plate fusion device of this embodiment is suitable for people with larger bones, wherein the oval major axis of the titanium plate 11 is 41mm, and the shortest The axial dimension is 14mm, and the width and height of the fusion device body 1 in this embodiment are all set to be smaller than the long axis dimension of the ellipse. Compared with the first embodiment, the titanium plate 11 with a larger area is used to increase the contact between the titanium plate 11 and the vertebral body. The contact area increases the stability of the fixation on the basis of taking up less space. The apertures of the two threaded through holes 112 on the titanium plate 11 are 7mm, and the center distance between the two threaded through holes 112 is 28mm. Correspondingly, the outer diameter of the two screws 2 matched with the threaded through holes 112 is 7mm, s...

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Abstract

The invention discloses an integral lumbar intervertebral titanium plate fusion apparatus, which comprises a fusion apparatus body consisting of a left support section, a right support section and a threaded section, wherein the end face of the left support section is provided with a titanium plate which is integrally molded with the fusion apparatus body; the middle part of the titanium plate is provided with a fusion apparatus holding interface; and threaded through holes are formed symmetrically in both sides of an accommodating device interface, and are positioned in both sides of the threaded section provided with screw threads. The titanium plate is integrally molded with the fusion apparatus body, so that aligning operation for accommodating the titanium plate through an accommodating device is eliminated, the surgery time is shortened, the surgical operation is simplified, and reduction in operation wounds is facilitated.

Description

technical field [0001] The invention relates to an intervertebral fusion device, in particular to an integrated lumbar intervertebral titanium plate fusion device. Background technique [0002] Low back pain caused by degenerative lumbar disc disease is a common disease affecting the health of modern humans, and minimally invasive spinal surgery is an extremely important treatment for this disease. There are many types of minimally invasive spinal surgery available, one of which is the extreme lateral approach lumbar interbody fusion (XLIF), which has the advantages of small incision, small trauma, less postoperative pain, shorter hospital stay, and faster recovery. Lumbar interbody fusion can implant an intervertebral fusion device in the intervertebral space, which can effectively restore the height of the intervertebral space and the volume of the intervertebral foramen, which is conducive to dispersing the load-bearing stress and reducing the pressure on the bone graft. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61B17/70
CPCA61F2/44A61F2002/30001
Inventor 戎利民杜江新董健文陆松
Owner THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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