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Interbody fusion cage

A fusion device and inter-cone technology, applied in the direction of spinal implants, etc., can solve the problems of affecting the surgical effect, small bone grafting area, affecting the amount of bone grafting and fusion rate, etc., so as to reduce the probability of subsidence and increase the amount of bone grafting Effect

Active Publication Date: 2021-04-20
湖南华翔医疗科技有限公司
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AI Technical Summary

Problems solved by technology

The current intervertebral fusion device mainly has the following disadvantages: 1. The area of ​​bone grafting is small, which affects the amount of bone grafting and fusion rate; 2. It is prone to subsidence and sinks into the vertebral body, resulting in the loss of intervertebral height and lordosis angle, which affects the operation. Effect

Method used

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specific Embodiment approach

[0032] The application also provides specific implementations of the interconical fusion device, including:

[0033] Step 1, such as Figure 5 As shown, pushing the cone fixed wing 12 makes the second angle joint part 10 rotate, the second angle adjustment part 3 and the second length adjustment part 5 produce angle changes, and the first angle adjustment part 2 and the first length adjustment part on the other side 4 Similarly, the angle changes.

[0034] Step 2: Implant the intervertebral fusion cage at the position of the intervertebral disc, and rotate the depth adjustment screw rotation groove 22 with a straight line to make the depth adjustment screw 6 rotate, and make the second screw thread 21 and base body length adjustment rod 11 rotate. The relative displacement of the angle adjustment part 3 and the second length adjustment part 5 occurs, and the displacement of the first angle adjustment part 2 and the first length adjustment part 4 is the same. (The structure o...

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Abstract

The invention provides an interbody fusion cage. According to the interbody fusion cage, the bone grafting amount is large, initial stability can be achieved without fixation of a nail plate, the sedimentation probability of the center of a vertebral body is larger than that of the edge, bone filling is adopted in the center, the periphery is supported by the fusion cage, the height is guaranteed, mechanical support is provided, and the sedimentation probability is reduced. The fusion cage is implanted firstly, the size, shape and position of the fusion cage are adjusted to be matched with a lesion excision part, and then a U-shaped part is filled with bone, so that the fusion cage has an adjusting function on different excision sizes and shapes thereof.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an interconical fusion device. Background technique [0002] Intervertebral fusion surgery is one of the most common procedures for this type of disease. It is performed as follows: First, the intervertebral disc is removed to release the compression of the spinal nerve, that is, "decompression", and then the intervertebral space is reconstructed by implanting fusion material Intervertebral stability, ie "reconstruction". The clinical effect of "reconstruction" mainly depends on the intervertebral fusion material. Common materials for intervertebral fusion include ① autologous bone, ② allograft bone, and ③ intervertebral fusion cage. Complications in the autologous bone harvesting area are inevitable with the use of autologous bone (the incidence rate is as high as 25%). The use of allogeneic bone avoids complications related to the bone harvesting area, but there are risks s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
Inventor 蒋金位邹炜民向小伟郭凯旋申宇王凯侯凯宋坤刘江
Owner 湖南华翔医疗科技有限公司
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