技术领域technical field
本发明属于医用假体制造技术领域，尤其涉及山羊腰椎椎体及邻近椎间盘切除术后进行假体移植，并可以保留腰椎活动功能的仿生防脱位山羊腰椎连接复合体。The invention belongs to the technical field of medical prosthesis manufacturing, and in particular relates to a bionic dislocation-preventing goat lumbar connection complex for prosthesis transplantation after goat lumbar vertebral body and adjacent intervertebral disc resection and which can retain the lumbar activity function.
背景技术Background technique
山羊属于哺乳纲，一般有6～7个腰椎椎体，与人体腰椎相比，其椎体较长，但冠状径与矢状径均较小，侧面观呈类“K”字形结构，各椎体之间亦通过椎间盘相连，从而保证了椎体的旋转、屈伸等运动功能。虽然山羊无法同人类一样直立行走，但是有学者研究发现因椎旁肌肉的作用其腰椎椎体的受力状况与人体腰椎相似，因此目前许多脊柱假体的开发研究在步入临床之前大都通过山羊体内外实验进行安全性评估。Goats belong to the class Mammalia, and generally have 6-7 lumbar vertebral bodies. Compared with human lumbar vertebrae, the vertebral bodies are longer, but the coronal and sagittal diameters are smaller. The bodies are also connected by intervertebral discs, thus ensuring the movement functions of the vertebral bodies such as rotation, flexion and extension. Although goats cannot walk upright like humans, some scholars have found that the force of the lumbar vertebrae is similar to that of the human lumbar spine due to the action of the paravertebral muscles. In vivo and in vitro experiments for safety assessment.
腰椎结核、肿瘤、陈旧性骨折常导致脊柱侧弯、脊髓压迫等严重并发症，是严重威胁人体健康的一类疾病。目前，针对上述疾患通常采取病灶清除术后行钛笼植骨融合联合钉棒内固定治疗，因该术式能够获得即刻及长期稳定性，被脊柱外科医生广泛采用。但是该手术一般至少融合三个邻近椎体，被融合椎体丧失了正常的活动功能，导致未融合节段应力集中及活动范围增加，长期可导致邻近椎间盘退变、继发性椎管狭窄、关节突关节退变、获得性脊椎滑脱、不稳等严重并发症。此外，有学者长期随访发现进行钛笼植骨融合的患者可能存在钛笼沉降等并发症，病情严重者需再次手术治疗。为克服上述缺陷，人工椎体以及人工椎间盘的研究一直备受关注，目前已取得了很大进展，但是仍存在难以保留脊柱生理功能或者造成脊柱不稳等并发症。Lumbar tuberculosis, tumors, and old fractures often lead to serious complications such as scoliosis and spinal cord compression, which are a type of disease that seriously threatens human health. At present, the above-mentioned diseases are usually treated with titanium cage bone graft fusion combined with screw rod internal fixation after debridement. Because this operation can obtain immediate and long-term stability, it is widely used by spine surgeons. However, this operation usually fuses at least three adjacent vertebral bodies, and the fused vertebral body loses its normal activity function, resulting in stress concentration and increased range of motion of the unfused segment, which can lead to adjacent intervertebral disc degeneration, secondary spinal stenosis, Facet joint degeneration, acquired spondylolisthesis, instability and other serious complications. In addition, some scholars have found in long-term follow-up that patients undergoing titanium cage bone graft fusion may have complications such as titanium cage subsidence, and those with severe conditions require reoperation. In order to overcome the above defects, research on artificial vertebral bodies and artificial intervertebral discs has been receiving much attention, and great progress has been made so far, but there are still complications such as difficulty in retaining the physiological functions of the spine or causing spinal instability.
为解决上述难题，国内贺西京、雷伟等教授首次着力于人工椎体及椎间盘系统的研究，目前在颈椎方面已取得了可喜的成绩，仿生寰枢椎假体及下颈椎的人工椎体及椎间盘复合体在山羊体内外研究中取得了比较满意的效果。但是因腰椎解剖结构及生理功能复杂，颈椎的人工椎体及椎间盘复合体难以应用于腰椎。腰椎复合体必需满足以下三点：1.保证植入后脊柱的即刻及长期稳定性。2.保留邻近椎体的运动功能。3.满足正常脊柱的承重功能。但是目前人工假体、人工椎间盘及下颈椎的人工椎体及椎间盘系统均难以做到。为解决此项难题，申请人设计出人工腰椎及椎间盘连接复合体，为评估其安全性，需行山羊体内外研究，但因山羊腰椎解剖与人体的差异，该连接复合体无法直接用于山羊，因此根据山羊腰椎解剖特点设计出一种仿生防脱山羊腰椎复合体，查阅国内外文献，此项设计尚属首例。In order to solve the above problems, domestic professors He Xijing and Lei Wei focused on the research of artificial vertebral body and intervertebral disc system for the first time. At present, gratifying achievements have been made in the cervical spine. The bionic atlantoaxial prosthesis and the artificial vertebral body of the lower cervical spine and The intervertebral disc complex has achieved satisfactory results in goat in vivo and in vitro studies. However, due to the complex anatomical structure and physiological functions of the lumbar spine, it is difficult to apply the artificial vertebral body and intervertebral disc complex of the cervical spine to the lumbar spine. The lumbar complex must meet the following three points: 1. Ensure the immediate and long-term stability of the spine after implantation. 2. Preserve the motor function of the adjacent vertebral body. 3. Meet the load-bearing function of the normal spine. But artificial prosthesis, artificial intervertebral disc and artificial vertebral body and intervertebral disc system of lower cervical vertebra are all difficult to accomplish at present. In order to solve this problem, the applicant designed an artificial lumbar spine and intervertebral disc connection complex. In order to evaluate its safety, it is necessary to conduct in vivo and in vitro studies in goats. However, due to the difference between the anatomy of the goat lumbar spine and the human body, the connection complex cannot be directly used in goats. , so according to the anatomical characteristics of the goat lumbar spine, a bionic anti-off goat lumbar complex was designed. After consulting domestic and foreign literature, this design is still the first case.
发明内容Contents of the invention
本发明的目的在于充分吸取目前人工椎间盘及人工椎体的优势，取长补短并综合山羊腰椎的解剖特点提供一种仿生防脱位山羊腰椎连接复合体。The purpose of the present invention is to fully absorb the advantages of the current artificial intervertebral disc and artificial vertebral body, learn from each other and integrate the anatomical characteristics of the goat lumbar vertebra to provide a bionic anti-dislocation goat lumbar connection complex.
为达到上述目的，本发明采用了以下技术方案：To achieve the above object, the present invention adopts the following technical solutions:
该山羊腰椎连接复合体包括椎体部件以及设置于椎体部件两端的椎间盘部件，所述椎体部件包括K字形几何体，所述椎间盘部件包括分别与腰椎椎体的终板以及侧面形状相应的底板以及弧形侧板，所述弧形侧板设置于所述底板上，所述椎间盘部件的底板与K字形几何体的对应侧端面之间通过球窝关节相连。The goat lumbar connection complex includes vertebral body parts and intervertebral disc parts arranged at both ends of the vertebral body parts, the vertebral body parts include a K-shaped geometry, and the intervertebral disc parts include bottom plates corresponding to the end plates and side shapes of the lumbar vertebral body respectively and an arc-shaped side plate, the arc-shaped side plate is arranged on the bottom plate, and the bottom plate of the intervertebral disc component is connected with the corresponding side end surface of the K-shaped geometric body through a ball joint.
所述底板的边缘由椭圆弧段以及与该椭圆弧段的两端连接的线段组成，所述椭圆弧段与线段的连接处圆滑处理，所述椭圆弧段以对应椭圆的长轴对称，所述弧形侧板设置于所述底板边缘的椭圆弧段上，所述弧形侧板向内倾斜并与所述底板呈60～70度夹角，所述弧形侧板上设置有螺孔。The edge of the bottom plate is composed of an elliptical arc segment and a line segment connected to the two ends of the elliptical arc segment. The connection between the elliptical arc segment and the line segment is smoothed. The arc-shaped side plate is arranged on the elliptical arc segment of the edge of the bottom plate, the arc-shaped side plate is inclined inward and forms an angle of 60-70 degrees with the bottom plate, and the arc-shaped side plate is provided with screw holes .
所述两个螺孔不在同一水平面上。The two screw holes are not on the same horizontal plane.
所述底板上设置有圆锥状齿突及圆柱状突起，圆锥状齿突与所述弧形侧板位于所述底板的同一侧表面，圆锥状齿突沿椭圆线间隔分布于所述底板上，圆柱状突起位于所述底板的另一侧表面上，圆柱状突起的中心线与所述底板平面中心重合。The bottom plate is provided with conical denticulations and cylindrical protrusions, the conical denticulations and the arc-shaped side plates are located on the same side surface of the bottom plate, and the conical denticulations are distributed on the bottom plate at intervals along elliptical lines, The cylindrical protrusion is located on the other side surface of the bottom plate, and the center line of the cylindrical protrusion coincides with the plane center of the bottom plate.
所述K字形几何体的侧面包括沿冠状面延伸的矩形平面以及与所述矩形平面相连的鞍状曲面，所述K字形几何体内设置有空腔，所述K字形几何体的侧面上设置有若干个圆槽以及与所述空腔连通的矩形贯通槽，所述K字形几何体的两个端面上设置有开口为圆形的凹槽，所述凹槽内设置有用于作为球窝关节关节头的球体，所述球体与所述凹槽之间留有间隙。The side of the K-shaped geometry includes a rectangular plane extending along the coronal plane and a saddle-shaped curved surface connected to the rectangular plane, a cavity is arranged in the K-shaped geometry, and several A circular groove and a rectangular through groove communicating with the cavity, the two end faces of the K-shaped geometric body are provided with a circular groove, and the groove is provided with a ball used as a ball joint joint head , there is a gap between the ball and the groove.
所述圆槽随机分布于所述K字形几何体的侧面上，所述矩形贯通槽分别沿矢状面及冠状面方向走行并关于中间水平面对称地分布于所述K字形几何体上，所述球体高出所述K字形几何体对应侧端面，所述间隙内设置有与所述球体配合的用于作为球窝关节关节窝的球壳，所述球壳与设置于所述底板上的圆柱状突起相连。The circular grooves are randomly distributed on the side of the K-shaped geometric body, the rectangular through grooves run along the sagittal plane and the coronal plane respectively and are symmetrically distributed on the K-shaped geometric body with respect to the middle horizontal plane, and the height of the sphere is Out of the corresponding side end surface of the K-shaped geometric body, a spherical shell for use as a socket of a ball-and-socket joint is provided in the gap to cooperate with the sphere, and the spherical shell is connected to the cylindrical protrusion provided on the bottom plate .
所述球壳的开口边缘处设置有两个弧形突起，所述两个弧形突起位置相对，并且关于正中矢状面对称分布，所述凹槽的壁面上设置有两个缺口，两个缺口位置相对并关于冠状面对称分布，两个弧形突起的外壁面的间距小于或者等于所述两个缺口之间的距离，并且该间距大于所述凹槽开口处的直径。Two arc-shaped protrusions are arranged on the edge of the opening of the spherical shell. The two arc-shaped protrusions are opposite and distributed symmetrically with respect to the median sagittal plane. Two notches are arranged on the wall surface of the groove. The positions of the two notches are opposite and distributed symmetrically with respect to the coronal plane, and the distance between the outer walls of the two arc-shaped protrusions is less than or equal to the distance between the two notches, and the distance is greater than the diameter of the opening of the groove.
所述椎体部件及椎间盘部件均采用一体成型。Both the vertebral body part and the intervertebral disc part are integrally formed.
所述山羊腰椎连接复合体采用医用钛合金材质，所述椎体部件的侧面及椎间盘部件上与骨面直接接触的表面均设置有羟基磷灰石涂层。The goat lumbar connection complex is made of medical titanium alloy, and the side surfaces of the vertebral body parts and the surfaces of the intervertebral disc parts that are in direct contact with the bone surface are all provided with hydroxyapatite coating.
所述球窝关节的关节面采用抛光处理。The articular surface of the ball and socket joint is polished.
本发明的有益效果体现在：The beneficial effects of the present invention are reflected in:
本发明所述仿生防脱位山羊腰椎连接复合体充分考虑了山羊腰椎的解剖特点，椎体部件采用K字形几何体，椎间盘部件上的底板及弧形侧板与邻近椎体紧密结合，有效减少接触面的应力集中，满足了正常腰椎的承重功能，因球窝关节的存在，保留了椎间盘的旋转、屈伸功能，更加接近生理状态。本发明可用于人工腰椎及椎间盘连接复合体的安全性评估。The bionic anti-dislocation goat lumbar connection complex of the present invention fully considers the anatomical characteristics of the goat lumbar vertebrae. The vertebral body parts adopt a K-shaped geometry, and the bottom plate and arc-shaped side plates on the intervertebral disc parts are closely combined with adjacent vertebral bodies, effectively reducing the contact surface. The stress concentration meets the load-bearing function of the normal lumbar spine. Due to the existence of the ball and socket joint, the rotation, flexion and extension functions of the intervertebral disc are preserved, which is closer to the physiological state. The invention can be used for the safety evaluation of the artificial lumbar vertebrae and the intervertebral disc connection complex.
本发明取得的进一步的技术效果如下：The further technical effect that the present invention obtains is as follows:
1、由钛合金铸造的球窝关节不但使活动中心恰好位于椎间隙中央，避免了因活动中心异位可能引起的潜在并发症，而且保留了椎体的旋转、侧弯、前屈、背伸功能，更加接近生理状态。本发明可以替代山羊腰椎手术中取掉的椎体及邻近的椎间盘，并且球窝关节结构设有防脱装置，既保证了术后的稳定性，又保留了腰椎的活动性，在仿生学上更接近山羊生理状态。1. The ball-and-socket joint made of titanium alloy not only makes the center of activity exactly in the center of the intervertebral space, avoiding potential complications caused by misalignment of the center of activity, but also retains the rotation, lateral bending, forward flexion and back extension of the vertebral body The function is closer to the physiological state. The present invention can replace the vertebral body and the adjacent intervertebral disc removed in goat lumbar surgery, and the ball-and-socket joint structure is equipped with an anti-off device, which not only ensures postoperative stability, but also retains the mobility of the lumbar spine. It is closer to the physiological state of goats.
2、本发明所述椎间盘部件的底板的形状与山羊腰椎终板前部形状类似，底板上设有圆锥状齿突，使底板与终板结合更加紧密、牢固。弧形侧板与椎体侧面紧密贴合，增大了接触面积，有效的避免了应力集中，底板上的圆柱状突起能够很好地承受因屈伸运动产生的横向剪切力，避免变形、折断等不良事件的发生。2. The shape of the bottom plate of the intervertebral disc component of the present invention is similar to that of the front part of the goat lumbar endplate, and the bottom plate is provided with a conical tooth process, which makes the combination of the bottom plate and the endplate more tightly and firmly. The arc-shaped side plate fits closely with the side of the vertebral body, which increases the contact area and effectively avoids stress concentration. The cylindrical protrusions on the bottom plate can well withstand the transverse shear force generated by flexion and extension, avoiding deformation and breaking and other adverse events.
3、本发明所述椎体部件侧面设有随机分布的小圆槽，利于周围组织的附着及残存骨质的长入，利用K字形几何体内部的空腔及矩形贯通槽可以容纳较多的植入骨，从而更利于与周围组织的融合，保证了术后长期的稳定性。3. The side of the vertebral body part of the present invention is provided with randomly distributed small circular grooves, which are beneficial to the attachment of surrounding tissues and the ingrowth of residual bone, and the cavity and rectangular through-holes inside the K-shaped geometry can accommodate more implants. It penetrates into the bone, which is more conducive to the fusion with the surrounding tissues and ensures long-term postoperative stability.
4、本发明所述球壳内外两面、球体表面及凹槽外壁面均经抛光处理，有效的减小了关节面的摩擦，椎间盘部件与骨面接触处以及椎体部件的侧面均有羟基磷灰石涂层，更加利于与周围组织的融合，保证了活动性与稳定性。4. The inner and outer sides of the spherical shell, the surface of the sphere and the outer wall of the groove of the present invention are all polished, which effectively reduces the friction on the articular surface. The gray stone coating is more conducive to the integration with the surrounding tissues, ensuring mobility and stability.
5、本发明所述弧形侧板上设有两个不在同一水平面上的螺孔，通过不同方向的螺钉植入，将弧形侧板牢固的固定于临近椎体上，降低了松动脱出的风险。5. The arc-shaped side plate of the present invention is provided with two screw holes not on the same horizontal plane, and the arc-shaped side plate is firmly fixed on the adjacent vertebral body by implanting screws in different directions, reducing the risk of loosening and prolapse. risk.
附图说明Description of drawings
图1为本发明的主视图；Fig. 1 is the front view of the present invention;
图2为本发明的后视图；Fig. 2 is the back view of the present invention;
图3为本发明的侧视图；Fig. 3 is a side view of the present invention;
图4为本发明的仰视图；Fig. 4 is the bottom view of the present invention;
图5为本发明的矢状面剖视图；Fig. 5 is the sagittal section view of the present invention;
图6为椎体部件的主视图；Fig. 6 is the front view of vertebral body part;
图7为椎体部件的矢状面剖视图；Fig. 7 is the sagittal section view of vertebral body part;
图8为椎体部件的等轴视图；Figure 8 is an isometric view of a vertebral body component;
图9为椎体部件的仰视图；Fig. 9 is the bottom view of vertebral body parts;
图10为椎间盘部件的后视图；Figure 10 is a rear view of an intervertebral disc component;
图11、图12为椎体部件各参数示意图；Figure 11 and Figure 12 are schematic diagrams of the parameters of the vertebral body parts;
图13、图14为椎间盘部件各参数示意图；Figure 13 and Figure 14 are schematic diagrams of the parameters of the intervertebral disc components;
图中：1为K字形几何体，2为底板，3为弧形侧板，4为球窝关节，6为椭圆弧段，7为线段，8为圆滑处理，9为螺孔，10为圆锥状齿突，11为圆柱状突起，12为空腔，13为圆槽，14为矩形贯通槽，15为端面，16为环形凹槽，17为大半球体结构，18为缺口，19为球壳，20为弧形突起，21为环形凹槽在K字形几何体端面的开口，22为螺钉。In the figure: 1 is the K-shaped geometry, 2 is the bottom plate, 3 is the curved side plate, 4 is the ball joint, 6 is the elliptical arc segment, 7 is the line segment, 8 is the smooth treatment, 9 is the screw hole, 10 is the conical shape Tooth process, 11 is a cylindrical protrusion, 12 is a cavity, 13 is a circular groove, 14 is a rectangular through groove, 15 is an end face, 16 is an annular groove, 17 is a large hemispherical structure, 18 is a gap, 19 is a spherical shell, 20 is an arc-shaped protrusion, 21 is an opening of an annular groove on the end face of a K-shaped geometric body, and 22 is a screw.
具体实施方式Detailed ways
下面结合附图和实施例对本发明做详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
参见图1～图10，本发明所述仿生防脱位山羊腰椎连接复合体，包括椎体部件、椎间盘部件及螺钉22。Referring to FIGS. 1 to 10 , the bionic anti-dislocation goat lumbar connection complex of the present invention includes vertebral body parts, intervertebral disc parts and screws 22 .
椎体部件由类山羊腰椎形态的K字形几何体1构成，K字形几何体1内部形成空腔12，侧面设有随机分布的小圆槽13、沿矢状面走行的两个开口相对的矩形贯通槽14以及沿冠状面走行的两个开口相对的矩形贯通槽14，矩形贯通槽14沿K字形几何体1中间水平面呈对称分布，K字形几何体1上下两端面15设有环形凹槽16，环形凹槽16内壁为大半球体结构17，所述大半球体结构17顶端高出于K字形几何体端面15，所述环形凹槽16外壁上前后设有两个关于冠状面对称分布的缺口18。The vertebral body part is composed of a K-shaped geometric body 1 in the shape of a goat lumbar vertebra. A cavity 12 is formed inside the K-shaped geometric body 1, and small circular grooves 13 are randomly distributed on the side, and two rectangular through grooves with opposite openings running along the sagittal plane 14 and two opposite rectangular through grooves 14 running along the coronal plane, the rectangular through grooves 14 are symmetrically distributed along the middle horizontal plane of the K-shaped geometric body 1, and the upper and lower ends 15 of the K-shaped geometric body 1 are provided with annular grooves 16, and the annular grooves The inner wall of 16 is a large hemispherical structure 17, the top of the large hemispherical structure 17 is higher than the end face 15 of the K-shaped geometry, and the outer wall of the annular groove 16 is provided with two gaps 18 symmetrically distributed about the coronal plane.
椎间盘部件包括与腰椎椎体的终板形状相应的底板2以及与腰椎椎体的侧面形状相应的弧形侧板3，所述底板2的边缘5由椭圆弧段6(弧度为180度)以及与该椭圆弧段的两端连接的线段7组成，端点处进行圆滑处理，椭圆弧段6以对应椭圆的长轴对称，弧形侧板3设置于底板2边缘的椭圆弧段上，弧形侧板3的延伸长度小于等于四分之一椭圆，所述底板2上设置有圆锥状齿突10及圆柱状突起11，圆锥状齿突10与弧形侧板3位于底板2的同一侧表面，圆锥状齿突10沿椭圆线均匀间隔分布于底板2上，圆柱状突起11位于底板2背离邻近腰椎终板的一侧表面上，其中心线与底板2平面中心重合，所述圆柱状突起11末端连接近半球壳19，所述近半球壳19边缘开口处连接两个弧形突起20，两个弧形突起20位置相对并关于正中矢状面对称分布，并且两个弧形突起20外壁面的间距小于或者等于所述两个缺口18之间的距离，大于所述环形凹槽在K字形几何体端面的开口处的外直径。通过两个缺口18两弧形突起20可以放入环形凹槽16内，进入后通过旋转，将弧形突起20远离缺口18，从而防止球壳19从环形凹槽16中脱出，不仅形成球窝关节4，而且保证了该球窝关节4的稳定性。所述弧形侧板3上设有两个不在同一水平面上的螺孔9，通过螺钉22将弧形侧板3牢固的固定于临近椎体上。该连接复合体中球壳19结构与大半球体结构17相配合构成球窝关节4，球窝关节4保证了术后临近椎体的旋转、侧弯、前屈、背伸功能，所述螺钉22分别位于螺孔9内。The intervertebral disc component comprises a base plate 2 corresponding to the shape of the end plate of the lumbar vertebral body and an arc-shaped side plate 3 corresponding to the side shape of the lumbar vertebral body. The line segment 7 connected to the two ends of the elliptical arc segment is composed of a rounded end point. The elliptical arc segment 6 is symmetrical to the major axis of the corresponding ellipse. The extension length of the side plate 3 is less than or equal to a quarter ellipse, and the bottom plate 2 is provided with a conical tooth process 10 and a cylindrical protrusion 11, and the conical tooth process 10 and the arc-shaped side plate 3 are located on the same side surface of the bottom plate 2 , the conical tooth processes 10 are evenly distributed on the bottom plate 2 along the elliptical line, and the cylindrical protrusions 11 are located on the surface of the bottom plate 2 away from the adjacent lumbar endplate, and its center line coincides with the center of the plane of the bottom plate 2. The cylindrical protrusions The end of 11 is connected to the proximal hemispherical shell 19, and the edge opening of the proximal hemispherical shell 19 is connected to two arc-shaped protrusions 20, the two arc-shaped protrusions 20 are opposite and distributed symmetrically about the median sagittal plane, and the two arc-shaped protrusions 20 The distance between the outer wall surfaces is less than or equal to the distance between the two notches 18 and greater than the outer diameter of the annular groove at the opening of the end face of the K-shaped geometric body. The two arc-shaped protrusions 20 can be put into the annular groove 16 through the two gaps 18. After entering, the arc-shaped protrusions 20 are kept away from the gap 18 by rotating, thereby preventing the spherical shell 19 from coming out of the annular groove 16, not only forming a ball socket joint 4, and ensure the stability of the ball joint 4. The curved side plate 3 is provided with two screw holes 9 that are not on the same level, and the curved side plate 3 is firmly fixed on the adjacent vertebral body by screws 22 . The structure of the spherical shell 19 in the connection complex cooperates with the large hemispherical structure 17 to form a ball joint 4. The ball joint 4 ensures the functions of rotation, side bending, flexion and dorsiflexion of the adjacent vertebral body after operation. The screw 22 They are respectively located in the screw holes 9.
从图5以及图7中可以看出，环形凹槽16就是用于安放球壳19的间隙，环形凹槽在K字形几何体端面的开口外直径小于所述弧形突起20外壁面的间距。It can be seen from FIG. 5 and FIG. 7 that the annular groove 16 is the gap for placing the spherical shell 19 , and the outer diameter of the opening of the annular groove on the end face of the K-shaped geometric body is smaller than the distance between the outer walls of the arc-shaped protrusions 20 .
椎体部件、椎间盘部件均采用医用钛合金材质一体成型，与骨面直接接触表面均设置有羟基磷灰石涂层，更利于与周围组织的融合，保证了术后的稳定性。所述球壳19内外表面、环形凹槽16内、外壁面均进行抛光处理，可以有效的降低接触面(关节面)的摩擦。The vertebral body parts and intervertebral disc parts are all made of medical titanium alloy, and the surface in direct contact with the bone surface is coated with hydroxyapatite, which is more conducive to the fusion with the surrounding tissues and ensures postoperative stability. The inner and outer surfaces of the spherical shell 19 and the inner and outer walls of the annular groove 16 are all polished, which can effectively reduce the friction of the contact surface (articular surface).
参见图6～图9，椎体部件的K字形几何体1体高40±3mm，中间水平面正中矢状径为10±1mm，后边冠状径为14±2mm，前面圆弧与后面线段连接的端点处经过平滑曲线进行连接，连接处进行半径R1＝1mm的圆角圆滑处理。距离中间水平面10mm的水平面正中矢状径为13±1mm，后边冠状径为18±2mm，前面圆弧与后面线段连接的端点处通过平滑曲线进行连接，连接处进行半径R2＝2mm的圆角圆滑处理。距离中间水平面15～20mm的水平面正中矢状径为15±1mm，后边冠状径为22±2mm，前面圆弧与后面线段连接的端点处通过平滑曲线进行连接，连接处进行半径R3＝3mm的圆角圆滑处理，上述各水平面后部边线位于同一冠状面上。在距离K字形几何体1中间水平面2～3mm的上下两侧内部进行挖空处理，使侧壁厚2～3mm，侧面四个矩形贯通槽14开口为4mm×6mm，侧面随机分布的小圆槽13深为1mm，半径为1mm。Referring to Figures 6 to 9, the K-shaped geometric body of the vertebral body has a body height of 40±3mm, a median sagittal diameter of the middle horizontal plane of 10±1mm, and a posterior coronal diameter of 14±2mm. Smooth curves are used for connection, and the connection is rounded and rounded with a radius of R1 = 1mm. The median sagittal diameter of the horizontal plane 10mm away from the middle horizontal plane is 13±1mm, and the posterior coronal diameter is 18±2mm. The endpoints connecting the front arc and the rear line segment are connected by a smooth curve, and the joint is rounded with a radius of R2=2mm. deal with. The median sagittal diameter of the horizontal plane 15-20mm away from the middle horizontal plane is 15±1mm, and the posterior coronal diameter is 22±2mm. The endpoints connecting the front arc and the rear line segment are connected by a smooth curve, and the connection is a circle with a radius of R3=3mm. The corners are rounded, and the rear edges of the above-mentioned horizontal planes are located on the same coronal plane. The upper and lower sides of the K-shaped geometric body 1 are hollowed out at a distance of 2 to 3 mm from the middle horizontal plane, so that the side wall thickness is 2 to 3 mm, and the openings of the four rectangular through-slots 14 on the side are 4 mm × 6 mm, and the small round slots 13 are randomly distributed on the side. The depth is 1mm and the radius is 1mm.
参见图11、图12，所述大半球体结构17直径D2＝10mm，大半球体结构17顶端与K字形几何体端面15的距离为H1＝2mm，所述环形凹槽16宽度W2＝1.5mm，环形凹槽在K字形几何体端面的开口21外直径D3＝11mm，环形凹槽16外壁上的缺口18间距D1＝13mm，宽度W＝6.2mm，深度H2＝3mm，缺口18底端距离环形凹槽16底端H3＝2mm，K字形几何体1两端内部挖空相距W1＝3～5mm，K字形几何体端面15后边冠状径为W3＝22±2mm。Referring to Fig. 11 and Fig. 12, the diameter of the large hemispherical structure 17 D2=10mm, the distance between the top of the large hemispherical structure 17 and the end face 15 of the K-shaped geometry is H1=2mm, the width of the annular groove 16 W2=1.5mm, the annular groove Groove is in the opening 21 outer diameter D3=11mm of K-shaped geometry end face, the gap 18 spacing D1=13mm on the outer wall of annular groove 16, width W=6.2mm, depth H2=3mm, gap 18 bottoms are apart from annular groove 16 bottoms End H3=2mm, K-shaped geometric body 1 internally hollowed out distance W1=3～5mm, K-shaped geometric body end surface 15 rear coronal diameter is W3=22±2mm.
参见图13、图14，所述椎间盘部件底板2及弧形侧板3厚H6＝1.5mm，底板2边缘椭圆弧段6短轴半径为13mm，长轴半径为15mm，椭圆弧段6与线段7的连接处进行半径R4＝2mm圆角圆滑处理，所述弧形侧板3高12mm，与底板2呈60～70度夹角，所述圆柱状突起11半径为4mm，高H4＝1mm，末端与球壳19相连接，球壳19厚度W5＝1.3mm，球壳19顶部距离开口边缘高度H5＝2mm，所述弧形突起20外壁面的间距W4＝12.8mm，弧形突起宽度W6＝6mm。Referring to Fig. 13 and Fig. 14, the thickness of the intervertebral disc component bottom plate 2 and arc side plate 3 is H6 = 1.5mm, the radius of the minor axis of the elliptical arc segment 6 on the edge of the base plate 2 is 13 mm, the radius of the major axis is 15 mm, and the radius of the elliptical arc segment 6 and the line segment The joints of 7 are rounded and smoothed with a radius of R4=2mm. The arc-shaped side plate 3 is 12mm high and forms an angle of 60-70 degrees with the bottom plate 2. The cylindrical protrusion 11 has a radius of 4mm and a height of H4=1mm. The end is connected with the spherical shell 19, the thickness of the spherical shell 19 is W5=1.3mm, the height of the spherical shell 19 from the edge of the opening is H5=2mm, the distance between the outer wall of the arc-shaped protrusion 20 is W4=12.8mm, and the arc-shaped protrusion width W6= 6mm.
所述羟基磷灰石涂层厚度为20μm。The thickness of the hydroxyapatite coating is 20 μm.
上述参数可根据山羊腰椎大小的差异进行适当变动。The above parameters can be changed appropriately according to the difference in the size of goat lumbar vertebrae.
本发明所述仿生防脱位山羊腰椎连接复合体装配关系如下：所述底板2上的圆柱状突起11末端的球壳19及弧形突起20结构与椎体部件上的大半球体结构17及环形凹槽16构成防脱球窝关节，球窝关节各接触面进行高度抛光处理，保证关节在运动过程中较小的摩擦与磨损，螺钉22分别通过螺孔9将弧形侧板3固定于邻近椎体上。椎间盘部件的底板2形状与山羊腰椎终板类似，圆锥状齿突10使底板2与邻近终板结合更加牢固，弧形侧板3增加了与邻近椎体的接触面积，有效的减小了应力集中，从而满足腰椎的承重功能。椎体部件内部进行挖空处理，可以容纳较多的植骨，侧面设有矩形贯通槽14及随机分布的小圆槽13，更利于周围组织的附着、生长，保证了术后的长期稳定性。防脱球窝关节不但保证了植入后椎间盘部位的稳定性，防止椎间盘部件与椎体部件分离，而且保留了椎体间的旋转、侧弯、前屈、背伸功能，更加符合山羊生理状态。The assembly relationship of the bionic anti-dislocation goat lumbar vertebra connection complex of the present invention is as follows: the spherical shell 19 and the arc-shaped protrusion 20 structure at the end of the cylindrical protrusion 11 on the base plate 2 and the large hemispherical structure 17 and the annular concave structure on the vertebral body parts The groove 16 constitutes the ball-and-socket joint, and each contact surface of the ball-and-socket joint is highly polished to ensure less friction and wear of the joint during movement. physically. The shape of the bottom plate 2 of the intervertebral disc component is similar to that of the goat lumbar vertebral endplate. The conical odontoid process 10 makes the connection between the bottom plate 2 and the adjacent endplate more firm, and the curved side plate 3 increases the contact area with the adjacent vertebral body, effectively reducing the stress Concentrate, so as to meet the load-bearing function of the lumbar spine. The interior of the vertebral body is hollowed out, which can accommodate more bone grafts. The side is provided with rectangular through-slots 14 and randomly distributed small circular slots 13, which is more conducive to the attachment and growth of surrounding tissues and ensures long-term postoperative stability. . The anti-falling ball and socket joint not only ensures the stability of the intervertebral disc after implantation, prevents the separation of the intervertebral disc and the vertebral body, but also retains the functions of rotation, lateral bending, forward flexion and dorsiflexion between the vertebrae, which is more in line with the physiological state of goats .
总之，本发明所述仿生防脱位山羊腰椎连接复合体，包括椎体部件、椎间盘部件及螺钉。椎体部件由类山羊腰椎形态的“K”字形几何体构成，几何体内部进行挖空处理，侧面设有小圆槽及矩形贯通槽，上下两端面设有环形凹槽，凹槽内壁为大半球体结构，外壁上前后设有两个小缺口。椎间盘部件由底板、弧形侧板与圆柱状突起构成，底板上设有圆锥状齿突，弧形侧板上设有两个不在同一水平面上的螺孔，圆柱状突起末端为带有两个弧形突起的近半球壳结构。该连接复合体中椎间盘部件上的近半球壳结构与椎体部件上的大半球体结构相配合构成防脱球窝关节，关节面进行抛光处理，复合体中与骨面接触处有羟基磷灰石涂层。本发明不但可以替代山羊腰椎手术中取掉的椎体及邻近的椎间盘，而且保留了椎间盘的旋转、屈伸功能，并且整个结构设有防脱装置，既保证了术后的稳定性，又保留了腰椎的活动性，在仿生学上更接近山羊生理状态，可以作为人用假体的安全性评估模型。In a word, the bionic anti-dislocation goat lumbar connection complex of the present invention includes vertebral body parts, intervertebral disc parts and screws. The vertebral parts are composed of a "K"-shaped geometric body similar to the lumbar vertebra of a goat. The interior of the geometric body is hollowed out. There are small round grooves and rectangular through grooves on the side, and annular grooves on the upper and lower ends. The inner wall of the groove is a large hemispherical structure. , There are two small gaps on the front and back of the outer wall. The intervertebral disc component is composed of a base plate, an arc-shaped side plate and a cylindrical protrusion. The base plate is provided with a conical tooth process, and the arc-shaped side plate is provided with two screw holes that are not on the same level. The end of the cylindrical protrusion has two A nearly hemispherical shell structure with arc-shaped protrusions. The proximal hemispherical shell structure on the intervertebral disc component in the connection complex cooperates with the large hemispherical structure on the vertebral body component to form an anti-falling ball-and-socket joint. The articular surface is polished, and there is hydroxyapatite in the complex that contacts the bone surface coating. The invention can not only replace the vertebral body and adjacent intervertebral discs removed in goat lumbar surgery, but also retain the functions of rotation, flexion and extension of the intervertebral discs, and the whole structure is equipped with an anti-off device, which not only ensures postoperative stability, but also retains The mobility of the lumbar spine is closer to the physiological state of goats in bionics, and can be used as a safety evaluation model for human prostheses.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285489.0ACN105997309B (en) | 2016-04-29 | 2016-04-29 | A kind of bionical anti-dislocation goat lumbar vertebrae junctional complex |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285489.0ACN105997309B (en) | 2016-04-29 | 2016-04-29 | A kind of bionical anti-dislocation goat lumbar vertebrae junctional complex |
| Publication Number | Publication Date |
|---|---|
| CN105997309A CN105997309A (en) | 2016-10-12 |
| CN105997309Btrue CN105997309B (en) | 2018-05-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610285489.0AActiveCN105997309B (en) | 2016-04-29 | 2016-04-29 | A kind of bionical anti-dislocation goat lumbar vertebrae junctional complex |
| Country | Link |
|---|---|
| CN (1) | CN105997309B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108685627A (en)* | 2018-06-15 | 2018-10-23 | 陕西东望科技有限公司 | A kind of spinal prostheses and preparation method thereof based on 3D printing |
| CN109758273A (en)* | 2019-02-28 | 2019-05-17 | 河南省人民医院 | An adjustable self-stabilizing lumbosacral artificial vertebral body |
| CN115192271B (en)* | 2022-07-12 | 2024-11-22 | 郝定均 | Double-segment bionic cervical disc and vertebral body connection system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205626206U (en)* | 2016-04-29 | 2016-10-12 | 西安交通大学第二附属医院 | Bionical anticreep position goat lumbar vertebrae junctional complex |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1018714B (en)* | 1991-01-18 | 1992-10-21 | 王芬 | L-shaped adjustable artificial vertebral body |
| DE10130798A1 (en)* | 2001-06-22 | 2003-07-10 | Thomas Rene | Endoprosthesis of an intervertebral disk comprises a bent plate with a U- or V-shaped cross section and tabs for fixing screws |
| US6908484B2 (en)* | 2003-03-06 | 2005-06-21 | Spinecore, Inc. | Cervical disc replacement |
| US8273129B2 (en)* | 2004-02-10 | 2012-09-25 | Atlas Spine, Inc. | PLIF opposing wedge ramp |
| CN101019787B (en)* | 2006-12-31 | 2012-09-05 | 中国人民解放军第四军医大学 | Physiological cervical vertebral reconstructing system |
| CN101627931B (en)* | 2009-08-06 | 2010-12-01 | 雷伟 | A kind of artificial cervical compound joint |
| CN102240234B (en)* | 2011-06-29 | 2013-07-10 | 西安交通大学 | Adjustable artificial cervical vertebra and intervertebral connecting complex |
| CN202537716U (en)* | 2012-04-24 | 2012-11-21 | 南方医科大学 | Artificial cervical vertebra |
| CN104207864A (en)* | 2013-05-29 | 2014-12-17 | 天津市威曼生物材料有限公司 | Dynamic stable mesh cage |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205626206U (en)* | 2016-04-29 | 2016-10-12 | 西安交通大学第二附属医院 | Bionical anticreep position goat lumbar vertebrae junctional complex |
| Publication number | Publication date |
|---|---|
| CN105997309A (en) | 2016-10-12 |
| Publication | Publication Date | Title |
|---|---|---|
| CN105853031B (en) | A kind of bionical anti-artificial lumbar vertebrae of dislocation and interverbebral disc junctional complex | |
| JP7019616B2 (en) | Expandable and angle adjustable intervertebral cage with range of motion joints | |
| JP5209661B2 (en) | Cervical disc replacement | |
| CN107049563B (en) | Intervertebral disc prosthesis | |
| CN204839838U (en) | Artifical neck intervertebral disc false body | |
| JP2004154549A (en) | Intervertebral disc | |
| CN107049562B (en) | A kind of double acting joint cervical prosthesis | |
| EP2765958B1 (en) | Anatomy accommodating prosthetic intervertebral disc with lower height | |
| JP2021072940A (en) | Hip joint device and method | |
| US11337822B2 (en) | Temporomandibular joint implants and methods of treating a temporomandibular joint | |
| CN105105889A (en) | Artificial lumbar intervertebral disc prosthesis | |
| CN105997309B (en) | A kind of bionical anti-dislocation goat lumbar vertebrae junctional complex | |
| CN217448145U (en) | 3D prints bionical artificial intervertebral joint prosthesis | |
| CN109157309B (en) | Proximal tibial filler block prosthesis | |
| CN117084832B (en) | A kind of spinal facet joint prosthesis | |
| CN114469458A (en) | A 3D printed bionic artificial intervertebral joint prosthesis | |
| CN205626206U (en) | Bionical anticreep position goat lumbar vertebrae junctional complex | |
| CN205683167U (en) | The bionical artificial lumbar vertebra of anti-dislocation and intervertebral disc junctional complex | |
| JP7701064B2 (en) | Hip implant | |
| CN207520241U (en) | Intervertebral disk prosthesis | |
| CN108969157B (en) | Highly bionic intervertebral motion retaining device | |
| CN210301308U (en) | Adjustable self-stability lumbosacral segment artificial vertebral body | |
| CN117814963B (en) | Lumbosacral fusion device | |
| CN205434005U (en) | Neck intervertebral disc false body | |
| CN117017590B (en) | Artificial vertebral prosthesis assembly |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20240524 Address after:Room 50503-4, Building 1, Wangzuo International City, No.1 Tangyan Road, High tech Zone, Xi'an City, Shaanxi Province, 710075 Patentee after:Shaanxi Zhongyi Weikang Medical Equipment Co.,Ltd. Country or region after:China Address before:710004 No. 157, five West Road, Shaanxi, Xi'an Patentee before:The Second Affiliated Hospital of Xi'an Jiaotong University Country or region before:China | |
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20250611 Address after:710075 Shaanxi Province, Xi'an City, Gaoxin District, No. 229 Zhangba North Road, Jiuding Cheng, Building 4-1-102 Patentee after:Xi'an Jingjian Medical Technology Co.,Ltd. Country or region after:China Address before:Room 50503-4, Building 1, Wangzuo International City, No.1 Tangyan Road, High tech Zone, Xi'an City, Shaanxi Province, 710075 Patentee before:Shaanxi Zhongyi Weikang Medical Equipment Co.,Ltd. Country or region before:China |