Interbody fusion cage

A technology of intervertebral cage and plate body is applied in the field of intervertebral cage, which can solve the problems of poor position of the prosthesis and unattainable shape of the prosthesis, and achieve the effect of easy implantation

A technology of intervertebral cage and plate body is applied in the field of intervertebral cage, which can solve the problems of poor position of the prosthesis and unattainable shape of the prosthesis, and achieve the effect of easy implantation

CN111134913APending Publication Date: 2020-05-12BEIJING AKEC MEDICAL
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  • Interbody fusion cage
  • Interbody fusion cage
  • Interbody fusion cage

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The intervertebral fusion device of this embodiment includes an intervertebral fusion device body, and the intervertebral fusion device body includes a frame structure. The frame structure has an initial state that makes the intervertebral fusion device body have a curved shape and makes the intervertebral fusion device straight. The assembled state, under the preset conditions, the frame structure can transform from the assembled state to the initial state.

[0029] Applying the technical solution of this embodiment, the body of the intervertebral fusion device is implanted between the two vertebral bodies of the patient to be fused when the frame structure is in the straight state, so that the body of the intervertebral fusion device is flat. The straight shape enters the affected area for easy implantation. When the preset condition is reached after implantation, the frame structure changes to the initial state, so that the body of the intervertebral fusion cage can ...

Embodiment 2

[0038] The intervertebral cage of this embodiment adjusts the shapes of the first plate body 10 and the second plate body 20, specifically as Figure 4As shown, the first plate body 10 of this embodiment is in the shape of a corrugated plate, and the second plate body 20 is in the shape of a flat plate. In the initial state, the first plate body 10 extends along a curve, and the second plate body 20 is in a curved state, so that the body of the intervertebral cage is curved; in the assembled state, the first plate body 10 shrinks and extends along a straight line, and the second plate body 20 shrinks and extends along a straight line. The second plate body 20 is straightened in a straight state, so that the body of the intervertebral cage is straight.

Embodiment 3

[0040] The intervertebral cage of this embodiment adjusts the shapes of the first plate body 10 and the second plate body 20, specifically as Figure 5 As shown, the first plate body 10 and the second plate body 20 of this embodiment are both in the shape of a wave plate. In the initial state, the first plate body 10 and the second plate body 20 extend along a curve, so that the body of the intervertebral fusion cage The overall shape is curved; in the assembled state, the first plate body 10 shrinks and the second plate body 20 stretches so that the body of the intervertebral cage is straight as a whole.

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Abstract

The invention provides an interbody fusion cage, comprising an interbody fusion cage body, wherein the interbody fusion cage body comprises a frame structure; and the frame structure has an initial state enabling the interbody fusion cage body to be bent and an assembling state enabling the interbody fusion cage to be straight, and under a preset condition, the frame structure can be converted from the assembling state to the initial state. According to such a technical scheme, the problems that the position of a prosthesis is poor, and the shape of the prosthesis cannot achieve the maximum bone support in the prior art are effectively solved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an intervertebral fusion device. Background technique [0002] Posterior lumbar decompression and interbody fusion is the most commonly used surgical method for the treatment of lumbar disc herniation, lumbar spinal stenosis and other common diseases of the lumbar spine. Lumbar interbody fusion Transforaminal Lumbar Interbody Fusion, TLIF, minimally invasive transforaminal approach lumbar interbody fusion Minimally Invasive Surgery——Transforaminal Lumbar Interbody Fusion, MIS-TLIF three surgical methods were implemented. In recent decades of clinical practice, the three surgical methods have achieved good clinical efficacy; however, the entrance and direction of the operation are still difficult points in the implantation of the prosthesis. The best position of the prosthesis should be between the prosthesis and the coronal plane. Placed in parallel, the shape of the prosthesi...

Claims

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Application Information

Patent Timeline
12 May 2020
Publication
CN111134913A
IPC
A61F2/44; A61F2/30
CPC
A61F2/30771; A61F2/30942; A61F2/4455; A61F2002/30092; A61F2002/30329; A61F2002/30772; A61F2002/30985
Inventors
王彩梅