技术领域technical field
本实用新型涉及医疗器械领域，特别是涉及榫卯式胸腰椎椎间固定器。The utility model relates to the field of medical equipment, in particular to a mortise and tenon type thoracolumbar intervertebral fixator.
背景技术Background technique
榫卯是在两个构件上所采用的一种凹凸结合的连接方式。凸出部分叫榫(或榫头)；凹进部分叫卯(或榫眼、榫槽)，榫和卯咬合，起到连接作用。这是中国古代建筑、家具及其它木制器械的主要结构方式。榫卯结构是榫和卯的结合，是各部件之间多与少、高与低、长与短之间的巧妙组合，可有效地限制构成部件向各个方向的扭动。最基本的榫卯结构由两个构件组成，其中一个的榫头插入另一个的卯眼中，使两个构件连接并固定。Mortise and tenon is a concave-convex connection method used on two components. The protruding part is called tenon (or tenon); the concave part is called tenon (or tenon, tenon and groove), and the tenon and tenon bite together to play a connecting role. This is the main structure of ancient Chinese buildings, furniture and other wooden instruments. The mortise and tenon structure is a combination of tenon and tenon. It is an ingenious combination of more and less, high and low, long and short parts, which can effectively limit the twisting of components in all directions. The most basic mortise and tenon structure is composed of two components, the mortise of one is inserted into the mortise of the other, so that the two components are connected and fixed.
榫卯结构是古代中国建筑施工、传统家具制作过程中使用的主要结构方式。每个构件通过互相结合，互相支撑，将单薄的个体变成严丝合缝的整体，它克服了个体单薄的缺点，组合而成的整体能承受巨大的应力。除此之外，这种特殊的柔性结构体在承受较大荷载的同时还允许产生一定的形变。这也是许多中国古建筑不用一枚铁钉固定，却能岿然屹立百年的原因。榫卯是中国传统文化博大精深的缩影，是古代工匠技艺的精髓，是极为精巧的实用新型创造。Mortise and tenon structure is the main structural method used in ancient Chinese architectural construction and traditional furniture production. Each component is combined and supported by each other, turning the thin individual into a seamless whole. It overcomes the shortcomings of individual thinness, and the combined whole can withstand huge stress. In addition, this special flexible structure allows a certain amount of deformation while bearing a large load. This is also the reason why many ancient Chinese buildings can stand for a hundred years without being fixed with an iron nail. Mortise and tenon is the epitome of the broad and profound Chinese traditional culture, the essence of ancient craftsman skills, and an extremely delicate utility model creation.
椎间融合器在椎体间融合术中发挥了积极作用。它具有提高融合率，维持椎间隙高度和生理曲度，满足患者术后早期下地活动等优点。在30多年的发展历程中，种类繁多的椎间融合器不断问世并应用于临床。总的来说包括生物型椎间融合器、金属型椎间融合器、复合材料型椎间融合器、可吸收型椎间融合器等四大类。不同手术方式加之不同椎间融合器的应用往往意味着不同的临床效果。理想的椎间融合器应能纠正脊柱畸形，保持节段稳定并提供有利融合的理想力学环境。但随着随访时间的延长，椎间融合器移位、沉降、应力遮挡、邻近部位骨吸收、迟发性炎症反应等并发症时有报道。因此椎间融合器在材料学、生物力学和仿生学等领域的研究还有很长一段路要走。Intervertebral cages have played an active role in interbody fusion. It has the advantages of improving the fusion rate, maintaining the height of the intervertebral space and the physiological curvature, and satisfying the early movement of patients after surgery. In the course of more than 30 years of development, a wide variety of intervertebral fusion devices have come out and been used clinically. In general, it includes four categories: biological intervertebral fusion, metal intervertebral fusion, composite intervertebral fusion, and absorbable intervertebral fusion. Different surgical methods combined with the application of different intervertebral fusion devices often mean different clinical effects. An ideal interbody fusion cage should correct spinal deformities, maintain segmental stability and provide an ideal mechanical environment for fusion. However, with the prolongation of the follow-up period, complications such as intervertebral fusion cage displacement, subsidence, stress shielding, bone resorption in adjacent parts, and delayed inflammatory response have been reported from time to time. Therefore, there is still a long way to go in the research of intervertebral fusion in the fields of materials science, biomechanics and bionics.
实用新型内容Utility model content
针对现有技术中存在的技术问题，本实用新型的目的是：提供榫卯式胸腰椎椎间固定器，其适用于胸椎侧前方减压手术及腰椎后路减压手术中病变节段的椎间融合固定，将上下椎体组合成牢固的整体，达到限制固定器深度与防止其回退的目的，稳定性及牢靠性较好。Aiming at the technical problems existing in the prior art, the purpose of this utility model is to provide a mortise and tenon type thoracolumbar intervertebral fixator, which is suitable for the vertebrae of the diseased segment in the decompression operation on the side of the thoracic side and the posterior decompression operation of the lumbar spine. Interfacial fusion fixation, the upper and lower vertebral bodies are combined into a solid whole, to achieve the purpose of limiting the depth of the fixator and preventing its regression, with good stability and reliability.
为了达到上述目的，本实用新型采用如下技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
榫卯式胸腰椎椎间固定器，包括用于插入胸椎或者腰椎的椎间隙的椎间固定器体部，及固定连接于椎间固定器体部的一端的垂直翼状部件，垂直翼状部件包括连接部和榫头，连接部用于与椎间固定器体部固定连接，连接部沿人体脊椎的长度方向、向椎间固定器体部的两侧分别延伸出榫头。采用这种结构后，椎间固定器体部与椎体榫卯式组合方式，以垂直翼状部件为榫头，骨刀凿取胸椎的上下椎体的侧缘或腰椎的上下椎体的后缘骨槽做榫眼，将椎间固定器体部嵌入椎间隙中，将上下椎体组合成牢固的整体，达到限制固定器深度与防止其回退的目的。Mortise and tenon type thoracolumbar intervertebral fixator, including the intervertebral fixator body for inserting into the intervertebral space of the thoracic or lumbar spine, and a vertical wing-shaped part fixedly connected to one end of the intervertebral fixator body, the vertical wing-shaped part includes a connecting The connecting part is used for fixed connection with the body of the intervertebral fixator, and the connecting part extends out tenons respectively along the length direction of the human spine to both sides of the body of the intervertebral fixator. After adopting this structure, the body of the intervertebral fixator and the vertebral body are combined in a mortise-and-mortise manner, and the vertical wing-shaped part is used as the mortise head, and the bone knife chisels the side edge of the upper and lower vertebral bodies of the thoracic vertebrae or the posterior border bone of the upper and lower vertebral bodies of the lumbar vertebrae. The groove is used as a mortise, and the body of the intervertebral fixator is embedded in the intervertebral space, and the upper and lower vertebral bodies are combined into a solid whole, so as to limit the depth of the fixator and prevent its regression.
椎间固定器体部与垂直翼状部件为一体成型。结构更为稳固。The body of the intervertebral fixator and the vertical wing parts are integrally formed. The structure is more stable.
椎间固定器体部的一端设有凹槽，连接部位于凹槽内，连接部抵接于凹槽的底面。分开设置便于开模加工，制造工艺简单。One end of the body of the intervertebral fixer is provided with a groove, the connecting part is located in the groove, and the connecting part abuts against the bottom surface of the groove. The separate setting is convenient for mold opening and processing, and the manufacturing process is simple.
连接部的下部位于凹槽内，连接部的上部突出于凹槽。根据人体胸椎和腰椎的特点设置，使垂直翼状部件嵌入上下椎体的深度更合适。The lower part of the connecting part is located in the groove, and the upper part of the connecting part protrudes from the groove. According to the characteristics of the thoracic and lumbar vertebrae of the human body, the depth of the vertical wing-shaped parts embedded in the upper and lower vertebral bodies is more appropriate.
椎间固定器体部的两侧设有若干个卡齿，卡齿的方向朝向人体脊椎的长度方向，位于椎间固定器体部两侧的卡齿呈对称设置。为椎间固定器体部提供良好的支撑和把持作用。The two sides of the body of the intervertebral fixer are provided with several locking teeth. The direction of the locking teeth faces the length direction of the human spine, and the locking teeth located on both sides of the body of the intervertebral fixer are arranged symmetrically. Provide good support and grip for the body of the intervertebral fixator.
卡齿为直角三棱柱结构，卡齿的斜面朝向椎间固定器体部的插入方向。进一步提供更佳的稳固性和把持作用，上述为卡齿结构最优选的实施方式。The locking tooth is a right-angled triangular prism structure, and the slope of the locking tooth faces the insertion direction of the body of the intervertebral fixator. To further provide better stability and holding effect, the above is the most preferred implementation of the snap-tooth structure.
卡齿包括大卡齿和小卡齿，大卡齿设置于小卡齿的两侧，靠近椎间固定器体部的两端。上述为卡齿排列方式最优选的实施方式。The locking teeth include large locking teeth and small locking teeth, and the large locking teeth are arranged on both sides of the small locking teeth, close to the two ends of the body of the intervertebral fixator. The above is the most preferred embodiment of the bayonet arrangement.
椎间固定器体部设有镂空。既可以用于放置骨粒利于骨间融合又能够减轻椎间固定器整体重量。The body of the intervertebral fixer is provided with a hollow. It can not only be used to place bone grains to facilitate interosseous fusion, but also reduce the overall weight of the intervertebral fixator.
镂空为扁圆形镂空。上述结构为较佳的实施方式。The cutout is an oblate round cutout. The above structure is a preferred embodiment.
椎间固定器体部两侧设有把持器卡口，两个把持器卡口的连线垂直于人体脊椎的长度方向。用于手术时固定把持器。The two sides of the body of the intervertebral fixer are provided with gripper bayonets, and the connection line between the two gripper bayonets is perpendicular to the length direction of the human spine. Used to fix the gripper during surgery.
总的说来，本实用新型具有如下优点：In general, the utility model has the following advantages:
与现有技术的胸腰椎椎间固定装置相比，本装置适用于胸椎侧前方减压手术及腰椎后路减压手术中病变节段的椎间融合固定，使用中垂直翼状部件的榫头与上下椎体骨槽间的榫卯固定会将上下椎体向椎间固定器体部挤压，使上下椎体与椎间固定器三者形成一个牢固稳定的整体，稳定性及牢靠性较好，限制固定器深度与防止其回退，并为最终融合提供有利条件。Compared with the thoracolumbar intervertebral fixation device in the prior art, this device is suitable for intervertebral fusion and fixation of diseased segments in thoracic side anterior decompression surgery and lumbar posterior decompression surgery. The mortise and tenon fixation between the vertebral bone grooves will squeeze the upper and lower vertebral bodies to the body of the intervertebral fixator, so that the upper and lower vertebral bodies and the intervertebral fixator form a firm and stable whole, with good stability and reliability. Limit the depth of the fixator and prevent its regression, and provide favorable conditions for the final fusion.
附图说明Description of drawings
图1为本实用新型榫卯式胸腰椎椎间固定器的立体结构示意图。Fig. 1 is a three-dimensional structural schematic diagram of the mortise and tenon type thoracolumbar intervertebral fixator of the present invention.
图2为本实用新型榫卯式胸腰椎椎间固定器的另外一个角度的立体结构示意图。Fig. 2 is a three-dimensional structural schematic diagram of another angle of the mortise and tenon type thoracolumbar intervertebral fixator of the present invention.
图3为图2中所示角度的水平面示意图。FIG. 3 is a schematic diagram of a horizontal plane at the angles shown in FIG. 2 .
图4为图2中所述角度的矢状面示意图。FIG. 4 is a schematic sagittal view of the angle described in FIG. 2 .
其中图1至图4中包括有：Among them, Figures 1 to 4 include:
1为椎间固定器体部、1-1为大卡齿、1-2为小卡齿、1-3为扁圆形镂空、1-4为把持器卡口、1-5为圆柱状小孔；1 is the body of the intervertebral fixator, 1-1 is the large locking teeth, 1-2 is the small locking teeth, 1-3 is the oblate hollow, 1-4 is the holder bayonet, 1-5 is the cylindrical small hole;
2为垂直翼状部件、2-1为连接部、2-2为榫头、2-3刃口。2 is a vertical wing part, 2-1 is a connecting part, 2-2 is a tenon, and 2-3 is a cutting edge.
具体实施方式Detailed ways
下面来对本实用新型做进一步详细的说明。The utility model is described in further detail below.
实施例1。Example 1.
如图1至图4所示，榫卯式胸腰椎椎间固定器，包括用于插入胸椎或者腰椎的椎间隙的椎间固定器体部1，及固定连接于椎间固定器体部1的一端的垂直翼状部件2，垂直翼状部件2包括连接部2-1和榫头2-2，连接部2-1用于与椎间固定器体部1固定连接，连接部2-1沿人体脊椎的长度方向、向椎间固定器体部1的两侧分别延伸出榫头2-2。采用这种结构后，椎间固定器体部1与椎体榫卯式组合方式，以垂直翼状部件2为榫头2-2，骨刀凿取胸椎的上下椎体的侧缘或腰椎的上下椎体的后缘骨槽做榫眼，将椎间固定器体部1嵌入椎间隙中，将上下椎体组合成牢固的整体，达到限制固定器深度与防止其回退的目的。椎间固定器体部1与垂直翼状部件2为一体成型。结构更为稳固。连接部2-1的下部位于凹槽内，连接部2-1的上部突出于凹槽。根据人体胸椎和腰椎的特点设置，使垂直翼状部件2嵌入上下椎体的深度更合适。垂直翼状部件2朝向椎间固定器体部1的反方向的一面为平滑弧面，榫头2-2朝向椎间固定器体部1的方向设有锐利的刃口2-3。锐利的刃口2-3在椎间固定器植入椎间隙时便于榫头2-2插入骨槽间隙内。As shown in Figures 1 to 4, the mortise and tenon type thoracolumbar intervertebral fixator includes an intervertebral fixator body 1 for inserting into the intervertebral space of the thoracic or lumbar vertebrae, and an intervertebral fixator body 1 that is fixedly connected to the intervertebral fixator body 1. The vertical wing-shaped part 2 at one end, the vertical wing-shaped part 2 includes a connection part 2-1 and a tenon 2-2, the connection part 2-1 is used for fixed connection with the intervertebral fixator body 1, and the connection part 2-1 is along the spine of the human body. Tenons 2-2 are respectively extended to both sides of the intervertebral fixator body 1 in the length direction. After adopting this structure, the intervertebral fixator body 1 is combined with the vertebral body in a mortise-and-mortise manner, and the vertical wing-shaped part 2 is used as the tenon 2-2, and the bone knife chisels the side edges of the upper and lower thoracic vertebrae or the upper and lower vertebrae of the lumbar vertebrae. Mortise the posterior bone groove of the body, insert the intervertebral fixator body 1 into the intervertebral space, combine the upper and lower vertebral bodies into a firm whole, and achieve the purpose of limiting the depth of the fixator and preventing its regression. The body part 1 of the intervertebral fixator and the vertical wing part 2 are integrally formed. The structure is more stable. The lower part of the connecting part 2-1 is located in the groove, and the upper part of the connecting part 2-1 protrudes from the groove. According to the characteristics of the thoracic and lumbar vertebrae of the human body, the depth of the vertical wing-shaped part 2 embedded in the upper and lower vertebral bodies is more appropriate. The side of the vertical wing part 2 facing the opposite direction of the intervertebral fixator body 1 is a smooth arc surface, and the tenon 2-2 is provided with a sharp cutting edge 2-3 facing the direction of the intervertebral fixator body 1 . The sharp cutting edge 2-3 is convenient for the tenon 2-2 to be inserted into the intervertebral space when the intervertebral fixator is implanted into the intervertebral space.
如图1所示，椎间固定器体部1的两侧设有若干个卡齿，卡齿的方向朝向人体脊椎的长度方向，位于椎间固定器体部1两侧的卡齿呈对称设置。为椎间固定器体部1提供良好的支撑和把持作用。卡齿为直角三棱柱结构，卡齿的斜面朝向椎间固定器体部1的插入方向。进一步提供更佳的稳固性和把持作用，上述为卡齿结构最优选的实施方式。卡齿包括大卡齿1-1和小卡齿1-2，大卡齿1-1设置于小卡齿1-2的两侧，靠近椎间固定器体部1的两端。上述为卡齿排列方式最优选的实施方式。As shown in Figure 1, there are a number of locking teeth on both sides of the intervertebral fixator body 1, and the direction of the locking teeth faces the length direction of the human spine, and the locking teeth on both sides of the intervertebral fixator body 1 are arranged symmetrically. . Good support and holding effect are provided for the body part 1 of the intervertebral fixator. The locking teeth are in a right-angled triangular prism structure, and the slopes of the locking teeth face the insertion direction of the intervertebral fixator body 1 . To further provide better stability and holding effect, the above is the most preferred implementation of the snap-tooth structure. The locking teeth include a large locking tooth 1-1 and a small locking tooth 1-2, and the large locking tooth 1-1 is arranged on both sides of the small locking tooth 1-2, close to the two ends of the body 1 of the intervertebral fixator. The above is the most preferred embodiment of the bayonet arrangement.
如图1、图2、图4所示，椎间固定器体部1设有镂空。既可以用于放置骨粒利于骨间融合又能够减轻椎间固定器整体重量。镂空为扁圆形镂空1-3。上述结构为较佳的实施方式。扁圆形镂空1-3的两侧各设有一个圆柱状小孔1-5，便于观察扁圆形镂空1-3内部情况。As shown in Fig. 1 , Fig. 2 and Fig. 4 , the body 1 of the intervertebral fixator is hollowed out. It can be used to place bone grains to facilitate interosseous fusion and reduce the overall weight of the intervertebral fixator. Hollow out is oblate hollow out 1-3. The above structure is a preferred embodiment. Both sides of the oblate hollow 1-3 are respectively provided with a cylindrical small hole 1-5, which is convenient for observing the internal conditions of the oblate hollow 1-3.
如图1至图3所示，椎间固定器体部1两侧设有把持器卡口1-4，两个把持器卡口1-4的连线垂直于人体脊椎的长度方向。用于手术时固定把持器。As shown in Fig. 1 to Fig. 3, there are gripper bayonets 1-4 on both sides of the intervertebral fixator body 1, and the connecting line between the two gripper bayonets 1-4 is perpendicular to the length direction of the human spine. Used to fix the gripper during surgery.
总的说来，本实用新型具有如下优点：与现有技术的胸腰椎椎间固定装置相比，本装置适用于胸椎侧前方减压手术及腰椎后路减压手术中病变节段的椎间融合固定，使用中垂直翼状部件2的榫头2-2与上下椎体骨槽间的榫卯固定会将上下椎体向椎间固定器体部1挤压，使上下椎体与椎间固定器三者形成一个牢固稳定的整体，稳定性及牢靠性较好，限制固定器深度与防止其回退，并为最终融合提供有利条件。In general, the utility model has the following advantages: compared with the thoracolumbar intervertebral fixation device of the prior art, the device is suitable for the intervertebral region of the diseased segment in the thoracic side front decompression operation and the lumbar posterior decompression operation. Fusion fixation, the mortise and tenon fixation between the mortise and tenon 2-2 of the vertical wing-shaped part 2 and the bone groove of the upper and lower vertebrae will push the upper and lower vertebral bodies to the intervertebral fixator body 1, so that the upper and lower vertebral bodies and the intervertebral fixator The three form a solid and stable whole with good stability and reliability, which limits the depth of the fixator and prevents its regression, and provides favorable conditions for the final fusion.
胸椎侧路及腰椎后路手术减压完成后，选取适合高度的垂直翼状部件2，如需要多节段固定，榫头2-2高度小于椎体高度的二分之一。以榫头2-2高度为参考用骨刀分别在操作节段椎间隙上下椎体侧缘(胸椎)或后缘(腰椎)凿开相应高度、宽度和深度的骨槽制备榫眼，注意骨槽方向与椎间隙保持垂直。After the decompression of the thoracic lateral approach and the posterior lumbar approach is completed, a vertical wing-shaped part 2 of suitable height is selected. If multi-segment fixation is required, the height of the tenons 2-2 is less than half of the height of the vertebral body. Taking the height of the mortise 2-2 as a reference, use a bone knife to carve out bone grooves of corresponding height, width and depth on the side edge (thoracic vertebra) or posterior edge (lumbar vertebra) of the upper and lower vertebral bodies in the intervertebral space of the operating segment to prepare the mortise. Pay attention to the bone groove The direction is perpendicular to the intervertebral space.
根据手术试模检测椎间隙高度和宽度，结合术者经验确定最适合的胸腰椎用椎间固定器体部1规格。选取椎间固定器体部1后，将制备榫眼凿取的骨片(或自体髂骨、同种异体骨粒)植入椎间固定器体部1的扁圆形镂空1-3空间内并打压密实，以植骨块填满椎间固定器体部1并与顶底面平齐为宜。The height and width of the intervertebral space were detected according to the surgical trial model, and the most suitable specification of the body part 1 of the intervertebral fixator for the thoracolumbar spine was determined in combination with the experience of the surgeon. After the body part 1 of the intervertebral fixator is selected, the bone slice (or autologous iliac crest, allogeneic bone grains) obtained by preparing a mortise is implanted into the oblate hollow space 1-3 of the body part 1 of the intervertebral fixator And compact it, it is advisable to fill up the body part 1 of the intervertebral fixator with the bone graft and make it flush with the top and bottom surfaces.
将把持器(与现有椎间融合器所使用的产品通用)远端叉状结构放入椎间固定器体部1两侧的水平凹槽后部的把持器卡口1-4内，旋紧把持器近端螺栓确保把持器与椎间固定器固定良好。Put the fork-shaped structure at the distal end of the holder (common to the products used in the existing intervertebral fusion device) into the holder bayonet 1-4 at the rear of the horizontal groove on both sides of the body of the intervertebral fixator 1, and rotate Tighten the proximal bolt of the gripper to ensure a good fixation of the gripper and the intervertebral fixator.
将椎间固定器体部1前缘对准椎间隙，垂直翼状部件2上下两侧榫头2-2对准骨槽，击打把持器近端，控制击打力度和节奏，密切观察椎间固定器植入方向和深度。保持椎间固定器体部1后缘植入椎体内并确定垂直翼状部件2底面与上下椎体侧缘(胸椎)或后缘(腰椎)平齐，榫卯式胸腰椎椎间固定器植入到位。Align the front edge of the body 1 of the intervertebral fixator with the intervertebral space, align the mortise 2-2 on the upper and lower sides of the vertical wing 2 with the bone groove, hit the proximal end of the gripper, control the strength and rhythm of the blow, and closely observe the intervertebral fixation implantation direction and depth. Keep the posterior edge of the intervertebral fixator body 1 implanted in the vertebral body and make sure that the bottom surface of the vertical wing part 2 is flush with the side edge (thoracic vertebra) or posterior edge (lumbar vertebra) of the upper and lower vertebral body. into place.
适度提拉把持器手柄，检查椎间固定器体部1固定深度及牢靠程度，旋松把持器近端螺栓。榫卯式胸腰椎椎间固定器安放完毕。Moderately pull the handle of the gripper, check the fixation depth and firmness of the intervertebral fixator body 1, and loosen the proximal bolt of the gripper. The mortise and tenon thoracolumbar intervertebral fixator was placed.
榫卯式胸腰椎椎间固定器可在胸椎前路减压手术中配合前路钉棒系统使用，或在腰椎后路减压手术中联合椎弓根钉棒系统内固定手术使用。同时，垂直翼状部件2高度不超过椎体高度的一半，因此亦可用于实施连续两个及以上节段椎间病变手术。具体情况需要结合患者病情和手术者经验综合考量。将椎间固定器体部1和垂直翼状部件2做成不同的规格，以适应不同胸腰椎节段和不同患者个体差异所需。Mortise and tenon thoracolumbar intervertebral fixator can be used with anterior screw-rod system in anterior thoracic decompression surgery, or combined with pedicle screw-rod system internal fixation in posterior lumbar decompression surgery. At the same time, the height of the vertical wing-shaped part 2 does not exceed half of the height of the vertebral body, so it can also be used to perform operations on two or more consecutive segments of intervertebral lesions. The specific situation needs to be considered comprehensively in combination with the patient's condition and the experience of the surgeon. The body part 1 and the vertical wing part 2 of the intervertebral fixator are made into different specifications to meet the needs of different thoracolumbar segments and individual differences of different patients.
实施例2。Example 2.
榫卯式胸腰椎椎间固定器，其它结构与实施例1相同，不再赘述，不同之处在于：椎间固定器体部1的一端设有凹槽，连接部2-1位于凹槽内，连接部2-1抵接于凹槽的底面。分开设置便于开模加工，制造工艺简单。Mortise and tenon type thoracolumbar intervertebral fixer, other structures are the same as in Embodiment 1, and will not be described again, the difference is that one end of the intervertebral fixator body 1 is provided with a groove, and the connecting part 2-1 is located in the groove , the connecting portion 2-1 abuts against the bottom surface of the groove. The separate setting is convenient for mold opening and processing, and the manufacturing process is simple.
上述实施例为本实用新型较佳的实施方式，但本实用新型的实施方式并不受上述实施例的限制，其他的任何未背离本实用新型的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本实用新型的保护范围之内。The above-mentioned embodiment is a preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the above-mentioned embodiment, and any other changes, modifications and substitutions made without departing from the spirit and principle of the present utility model , combination, and simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544222.9UCN207886319U (en) | 2017-05-17 | 2017-05-17 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544222.9UCN207886319U (en) | 2017-05-17 | 2017-05-17 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| Publication Number | Publication Date |
|---|---|
| CN207886319Utrue CN207886319U (en) | 2018-09-21 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720544222.9UActiveCN207886319U (en) | 2017-05-17 | 2017-05-17 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| Country | Link |
|---|---|
| CN (1) | CN207886319U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157627A (en)* | 2017-05-17 | 2017-09-15 | 暨南大学 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157627A (en)* | 2017-05-17 | 2017-09-15 | 暨南大学 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| CN107157627B (en)* | 2017-05-17 | 2023-12-29 | 暨南大学 | Mortise and tenon type thoracolumbar intervertebral fixer |
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| GR01 | Patent grant | ||
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