Cervical vertebra anterior approach intervertebral 3D printing porous metal integrated fusion device

Abstract

The utility model discloses a cervical vertebra anterior approach interbody 3D printing porous metal integrated fusion device which comprises a fixator and a cervical vertebra interbody fusion cage, the inner side of the fixator is attached to an axis body and connected with the cervical vertebra body through a fixing insertion piece, and the cervical vertebra interbody fusion cage is connected with the inner side of the fixator. In the anterior cervical intervertebral disc resection fusion internal fixation, integration of bone fusion and internal fixation is achieved, so that the success rate of vertebral fusion is increased, the surgical bleeding amount and damage to muscular tissue are reduced, the surgical time is shortened, and a cervical vertebra complex can be safely and effectively fixed and fused.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to a 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach. Background Technology

[0002] Cervical spondylosis is the most common degenerative disease of nerve roots and spinal cord, seriously affecting the health and quality of life of the elderly. When spinal cord damage occurs, timely surgical treatment is necessary. Surgical treatments for cervical spondylosis include anterior and posterior approaches. In 1958, anterior cervical discectomy and fusion (ACDF) was first used to treat cervical spondylosis.

[0003] However, the current traditional anterior fixation method has its drawbacks: because the steel plate and fusion cage are independently implanted in the cervical spine, micro-movement of the vertebral body in the decompression segment can lead to an increased probability of postoperative nonfusion and pseudoarthrosis, as well as fusion failure due to fusion cage displacement. Utility Model Content

[0004] To address the aforementioned problems with existing fusion devices, this paper aims to provide a convenient and highly stable 3D-printed porous metal integrated fusion device for anterior cervical approach.

[0005] The specific technical solution is as follows:

[0006] A 3D-printed porous metal integrated intervertebral fusion device for anterior cervical approach includes: a fixator and a cervical intervertebral fusion device. The inner side of the fixator is attached to the axis vertebral body and connected to the cervical vertebral body through a fixation insert. The cervical intervertebral fusion device is connected to the inner side of the fixator.

[0007] As a further improvement and optimization of this solution, the fixing insert includes several inserts, the fixator has several channels, and the several inserts pass through the several channels and are connected to the cervical vertebrae.

[0008] As a further improvement and optimization of this solution, there are four inserts, which are located at the four corners of the fixer and are distributed in a rectangular structure.

[0009] As a further improvement and optimization of this solution, the fixture is made of steel plate.

[0010] As a further improvement and optimization of this solution, the steel plate is a titanium alloy steel plate.

[0011] As a further improvement and optimization of this solution, the cervical interbody fusion device is a 3D-printed porous metal cervical interbody fusion device.

[0012] As a further improvement and optimization of this solution, the cervical intervertebral fusion device is surrounded by titanium alloy.

[0013] As a further improvement and optimization of this solution, the middle part of the cervical interbody fusion device has porous metal.

[0014] The positive effects of the above technical solution compared with the existing technology are:

[0015] (1) In the anterior cervical discectomy and fusion internal fixation, this utility model achieves the integration of bone fusion and internal fixation, thereby increasing the success rate of vertebral fusion, reducing surgical bleeding and damage to muscle tissue, shortening the operation time, and safely and effectively fixing the fused cervical vertebral complex.

[0016] (2) The cervical intervertebral fusion device of this utility model is surrounded by titanium alloy metal to enhance the stability of fusion.

[0017] (3) The middle part of the cervical intervertebral fusion device of this utility model has porous metal for bone ingrowth, thereby obtaining a stable bony structure. Attached Figure Description

[0018] Figure 1 This is a top view of a 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to this utility model.

[0019] Figure 2 This is a front view of the cervical spine composite body in the implantation state of the 3D-printed porous metal integrated fusion device for cervical anterior approach intervertebral discectomy according to this utility model.

[0020] Figure 3 This is a side view of a 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to this utility model.

[0021] Figure 4 This is a side view of the cervical spine complex in the implantation state of the 3D-printed porous metal integrated fusion device for cervical anterior approach intervertebral discectomy according to this utility model.

[0022] In the attached diagram: 1. Insertion plate; 2. Cervical interbody fusion device; 3. Fixator. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Figure 1 This is a top view of a 3D-printed porous metal integrated fusion device for cervical anterior approach intervertebral discectomy according to this utility model. Figure 2 This is a front view of the cervical spine composite body in the implantation state of the 3D-printed porous metal integrated fusion device for anterior cervical spine approach, according to this utility model. Figure 3 This is a side view of a 3D-printed porous metal integrated fusion device for cervical anterior approach intervertebral discectomy according to this utility model. Figure 4 This is a side view of the cervical spine complex in its implanted state, as per the description of the 3D-printed porous metal integrated fusion device for anterior cervical spine approach according to this invention. Figure 1-4 As shown, a preferred embodiment of a cervical intervertebral fusion device with 3D printing porous metal is presented, comprising: a fixator 3 and a cervical intervertebral fusion device 2. The inner side of the fixator 3 is attached to the axis vertebral body and connected to the cervical vertebral body through a fixation insert. The cervical intervertebral fusion device 2 is connected to the inner side of the fixator 3.

[0027] In this procedure, anterior cervical discectomy and fusion with internal fixation is performed, achieving integrated bone fusion and internal fixation. This increases the success rate of vertebral fusion, reduces surgical bleeding and muscle tissue damage, shortens the operation time, and safely and effectively fixes the fused cervical vertebral complex.

[0028] Furthermore, as a preferred embodiment, the fixing insert includes a plurality of inserts 1, and the fixator 3 has a plurality of channels, with the plurality of inserts 1 passing through the plurality of channels and connected to the cervical vertebrae.

[0029] Specifically, insert 1 is inserted into the cervical vertebral body.

[0030] Furthermore, as a preferred embodiment, in order to improve the stability of the fastener 3, the insert 1 has four pieces, which are located at the four corners of the fastener 3 and are distributed in a rectangular structure.

[0031] Furthermore, as a preferred embodiment, the fixture 3 is a steel plate.

[0032] Furthermore, as a preferred embodiment, the steel plate is a titanium alloy steel plate.

[0033] Furthermore, as a preferred embodiment, the cervical interbody fusion device 2 is a 3D-printed porous metal cervical interbody fusion device 2.

[0034] Furthermore, as a preferred embodiment, the cervical interbody fusion cage 2 is surrounded by titanium alloy to enhance fusion stability.

[0035] Furthermore, as a preferred embodiment, the cervical interbody fusion device 2 has a porous metal in the middle for bone ingrowth, thereby obtaining a stable bony structure.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach, characterized in that, include: The fixator and the cervical intervertebral fusion device are described. The inner side of the fixator is fitted to the axis vertebral body and connected to the cervical vertebral body through a fixation insert. The cervical intervertebral fusion device is connected to the inner side of the fixator.

2. The 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to claim 1, characterized in that, The fixing insert includes several inserts, and the fixator has several channels. The several inserts pass through the several channels and are connected to the cervical vertebrae.

3. The 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to claim 2, characterized in that, The insert has four pieces, which are located at the four corners of the fixture and are distributed in a rectangular structure.

4. The 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to claim 1, characterized in that, The fastener is a steel plate.

5. The 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to claim 4, characterized in that, The steel plate is a titanium alloy steel plate.

6. The 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to claim 1, characterized in that, The cervical interbody fusion device is a 3D-printed porous metal cervical interbody fusion device.

7. The 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to claim 6, characterized in that, The cervical interbody fusion device is surrounded by titanium alloy.

8. The 3D-printed porous metal integrated fusion device for intervertebral discectomy via anterior cervical approach according to claim 6, characterized in that, The cervical interbody fusion device has a porous metal core in the middle.

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