技术领域Technical field
本发明属于医疗器械技术领域，具体涉及一种寰枢椎侧块融合器假体。The invention belongs to the technical field of medical devices, and specifically relates to an atlantoaxial lateral mass fusion prosthesis.
背景技术Background technique
寰枢椎侧块关节融合器是一种用于治疗颈椎病变（如颈椎退行性病变、颈椎间盘突出等）的医疗设备。在传统手术中，患者通常需要进行颈椎椎间盘切除手术，然后通过植入骨移植物或人工椎间盘来实现椎体的融合。然而，这种手术方法导致寰枢椎假体植入物易脱位的问题。为了克服传统手术方法的缺陷，寰枢椎侧块关节融合器应运而生。融合器通常设计为一个具有特殊结构的植入物，能够被植入到颈椎的侧块关节处。它可以提供更稳固的支撑，促使椎体间的骨头生长，最终实现颈椎的融合。这种新型融合器的设计旨在减小手术创伤，缩短康复时间，并提高手术的成功率和患者的生活质量。The atlantoaxial lateral mass joint fusion cage is a medical device used to treat cervical spine lesions (such as cervical degenerative disease, cervical disc herniation, etc.). In traditional surgery, patients typically undergo a cervical discectomy and then fuse the vertebrae through the implantation of bone grafts or artificial discs. However, this surgical method leads to the problem of easy dislocation of the atlantoaxial prosthetic implant. In order to overcome the shortcomings of traditional surgical methods, the atlantoaxial lateral mass fusion device came into being. A cage is usually designed as a specially constructed implant that can be implanted into the lateral mass joint of the cervical spine. It can provide more stable support, promote the growth of bones between the vertebrae, and ultimately achieve the fusion of the cervical spine. This new cage is designed to reduce surgical trauma, shorten recovery time, and improve surgical success and patient quality of life.
但是现有的寰枢椎侧块关节融合器在植入的过程中，由于融合器的设计通常为固定形状设计导致融合器难以以合适的角度放置在寰枢椎之间，且将假体植入以后难以调整融合器的位置使其与椎关节面充分接触，且融合器要设置不同规格以适应不同的病变程度和身体的差异，大大地增加了制造成本。However, during the implantation process of the existing atlantoaxial lateral mass joint fusion cage, the fusion cage is usually designed with a fixed shape, which makes it difficult to place the fusion cage between the atlantoaxial and atlantoaxial vertebrae at an appropriate angle, and the prosthesis is implanted After insertion, it is difficult to adjust the position of the cage to fully contact the vertebral articular surface, and the cages must be set in different specifications to adapt to different degrees of disease and body differences, which greatly increases the manufacturing cost.
发明内容Contents of the invention
本发明的目的在于提供一种寰枢椎侧块关节融合器，以解决寰枢椎侧块关节融合器植入困难且稳定性不好的问题。The object of the present invention is to provide an atlantoaxial lateral mass joint fusion device to solve the problems of difficulty in implanting the atlantoaxial vertebral mass joint fusion device and poor stability.
为解决上述技术问题，本发明提供了一种寰枢椎侧块关节融合器，包括：第一连接块，所述第一连接块上设置有第一螺纹孔；卡爪，所述卡爪由上半部的圆柱体和下半部的长方体构成，其中，长方体的短边面设置有三角形卡扣，卡扣和长方体之间设置有弹性部件，卡爪的正中心设置有第二螺纹孔，卡爪和第一连接块通过第二螺纹孔和第一螺纹孔固定连接；第二连接块，所述第二连接块上设置有两个空心圆柱和空心长方体，用于放置卡爪，空心长方体的内壁上设置有多个斜刺体，将壳体固定在第二连接块上形成两个密闭腔室，密闭腔室之间通过管道连接；壳体，壳体上设置有第三螺纹孔，用于固定将壳体和第二连接块。In order to solve the above technical problems, the present invention provides an atlantoaxial lateral mass joint fusion device, which includes: a first connecting block, the first connecting block is provided with a first threaded hole; and a claw, the claw is composed of The upper half is composed of a cylinder and the lower half is a cuboid. The short side of the cuboid is provided with a triangular buckle. An elastic component is provided between the buckle and the cuboid. A second threaded hole is provided in the center of the claw. The claws and the first connecting block are fixedly connected through the second threaded hole and the first threaded hole; the second connecting block is provided with two hollow cylinders and a hollow rectangular parallelepiped for placing the claws and the hollow rectangular parallelepiped A plurality of oblique thorns are provided on the inner wall of the housing, and the housing is fixed on the second connecting block to form two sealed chambers. The sealed chambers are connected through pipes; the housing is provided with a third threaded hole, Used to fix the housing and the second connecting block.
进一步地，所述第二连接块的空心圆柱体和空心长方体内壁上设置有耐磨涂层，用于增加融合器的使用寿命和耐久性。Further, a wear-resistant coating is provided on the inner walls of the hollow cylinder and hollow cuboid of the second connecting block to increase the service life and durability of the fusion device.
进一步地，所述卡爪的下半部长方体上设置有密封部件，以保证密闭腔室形成气压，使卡爪向上移动。Further, a sealing component is provided on the lower half of the rectangular parallelepiped of the claw to ensure that air pressure is formed in the airtight chamber to cause the claw to move upward.
进一步地，所述壳体的外表面设置有生物相容性涂层，用于减少人体组织对融合器的异物反应，促进愈合过程，降低患者手术后的不适感和并发症风险。Furthermore, the outer surface of the shell is provided with a biocompatible coating, which is used to reduce the foreign body reaction of human tissue to the cage, promote the healing process, and reduce the patient's discomfort and risk of complications after surgery.
进一步地，所述壳体上还设置有磁共振成像透明材料，以便在需要进行医学影像检查时，不需要拆除融合器，方便医生进行随时的影像监测。Furthermore, the housing is also provided with a magnetic resonance imaging transparent material, so that when medical imaging examination is required, the fusion device does not need to be removed, making it convenient for doctors to perform image monitoring at any time.
进一步地，所述第一连接块的第一螺纹孔和卡爪的第二螺纹孔之间设置有锁紧垫圈，用于确保连接部位的紧固度，防止因外力震动导致的松动现象。Further, a locking washer is provided between the first threaded hole of the first connecting block and the second threaded hole of the claw to ensure the tightness of the connection part and prevent loosening caused by external vibration.
进一步地，所述第二连接块的外表面覆盖有生物陶瓷涂层，具有良好的生物相容性和耐磨性，促进融合器与周围骨组织的融合，提高手术效果和持久性。Furthermore, the outer surface of the second connecting block is covered with a bioceramic coating, which has good biocompatibility and wear resistance, promotes the fusion of the cage and surrounding bone tissue, and improves the surgical effect and durability.
进一步地，所述寰枢椎侧块关节融合器内部空腔填充有骨形态发生蛋白，用于刺激骨细胞增生和分化，促使新骨组织的形成，加速骨融合过程。Furthermore, the internal cavity of the atlantoaxial lateral mass joint cage is filled with bone morphogenetic protein, which is used to stimulate the proliferation and differentiation of bone cells, promote the formation of new bone tissue, and accelerate the bone fusion process.
应用本发明的技术方案，第一连接块和卡爪穿过第二连接块连接，壳体和第二连接块固定以后，在第二连接块的左右形成两个密闭腔室，通过管道将两个密闭腔室连通形成连通器，将寰枢椎侧块关节融合器放置在切口位置，调整至合适的角度，在气压的作用下，左右两个密闭腔室的气压相同，将左右两个卡爪向上移动顶起第一连接块使得第一连接块和第二连接块与寰枢椎充分的接触，与此同时，卡扣与第二连接块的斜刺体锁死，防止融合器向内收缩，以达到稳定固定的目的。其中使用气压进行调整相比较机械结构而言具有更好的稳定性，第二连接块和卡爪接触的部位设置有耐磨涂层，防止在卡爪向上移动的过程中产生金属碎屑，在卡爪和斜刺体接触的部位设置密封材料保证第二连接块腔室的气密性，为了保证术后的监测，在寰枢椎侧块关节融合器的表面设置有磁共振成像透明材料，方便观察术后恢复情况。在提高稳定性层面，由于在融合器上设置了生物陶瓷涂层，并且在空腔内设置了骨形态发生蛋白，可以有效地促进融合器和人体骨骼的融合生长，且在螺纹孔之间设置了锁紧垫圈，保证了融合器的机械稳定性。Applying the technical solution of the present invention, the first connecting block and the claw are connected through the second connecting block. After the housing and the second connecting block are fixed, two closed chambers are formed on the left and right sides of the second connecting block, and the two closed chambers are connected through pipes. The two sealed chambers are connected to form a connector. Place the atlantoaxial lateral mass joint fusion device at the incision position and adjust it to a suitable angle. Under the action of air pressure, the air pressure in the left and right sealed chambers is the same. The claws move upward and push up the first connecting block so that the first connecting block and the second connecting block are in full contact with the atlantoaxial vertebra. At the same time, the buckle is locked with the oblique spine of the second connecting block to prevent the fusion cage from moving inward. Shrink to achieve stable fixation. The use of air pressure for adjustment has better stability than the mechanical structure. The contact area between the second connecting block and the claw is provided with a wear-resistant coating to prevent metal debris from being generated during the upward movement of the claw. A sealing material is provided at the contact point between the claw and the oblique stab body to ensure the airtightness of the second connecting block chamber. In order to ensure postoperative monitoring, a magnetic resonance imaging transparent material is provided on the surface of the atlantoaxial lateral mass joint cage. It is convenient to observe the postoperative recovery situation. In terms of improving stability, due to the bioceramic coating on the cage and the bone morphogenetic protein in the cavity, it can effectively promote the fusion growth of the cage and human bones, and it is provided between the threaded holes. A locking washer is installed to ensure the mechanical stability of the fusion device.
附图说明Description of the drawings
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The description and drawings that constitute a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached picture:
图1是寰枢椎侧块关节融合器的装配图；Figure 1 is the assembly diagram of the atlantoaxial lateral mass joint fusion cage;
图2是第一连接块的正视图；Figure 2 is a front view of the first connection block;
图3是卡爪的正视图；Figure 3 is a front view of the claw;
图4是卡爪的仰视图；Figure 4 is a bottom view of the claw;
图5是第二连接块的正视图；Figure 5 is a front view of the second connection block;
图6是第二连接块的仰视图；Figure 6 is a bottom view of the second connecting block;
图7是密闭腔室的剖视图；Figure 7 is a cross-sectional view of the closed chamber;
图8是密闭腔室的连接示意图；Figure 8 is a schematic diagram of the connection of the closed chamber;
图9是壳体的正视图。Figure 9 is a front view of the housing.
其中，上述附图包括以下附图标记：10、第一连接块；101、第一螺纹孔；20、卡爪；201、卡扣；202、弹性部件；203、第二螺纹孔；30、第二连接块；301、空心圆柱；302、进气孔；303、斜刺体；304、密闭腔室；305、管道；40、壳体；401、第三螺纹孔。Among them, the above-mentioned drawings include the following reference signs: 10. First connecting block; 101. First threaded hole; 20. Claw; 201. Snap; 202. Elastic component; 203. Second threaded hole; 30. Two connecting blocks; 301, hollow cylinder; 302, air inlet; 303, oblique thorn body; 304, sealed chamber; 305, pipe; 40, shell; 401, third threaded hole.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, it will be understood that when the terms "comprises" and/or "includes" are used in this specification, they indicate There are features, steps, operations, means, components and/or combinations thereof.
除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为授权说明书的一部分。在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其他示例可以具有不同的值。应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。The relative arrangement of components and steps, numerical expressions, and numerical values set forth in these examples do not limit the scope of the invention unless specifically stated otherwise. At the same time, it should be understood that, for convenience of description, the dimensions of various parts shown in the drawings are not drawn according to actual proportional relationships. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the authorized specification. In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters refer to similar items in the following figures, so that once an item is defined in one figure, it does not need further discussion in subsequent figures.
如图1-9所示，一种寰枢椎侧块关节融合器包括：第一连接块10，第一连接块上设置有第一螺纹孔101；卡爪20，卡爪由上半部的圆柱体和下半部的长方体构成，其中，长方体的短边面设置有三角形卡扣201，卡扣和长方体之间设置有弹性部件202，卡爪的正中心设置有第二螺纹孔203，卡爪和第一连接块通过第二螺纹孔203和第一螺纹101固定连接；第二连接块30，第二连接块上设置有两个空心圆柱和空心长方体，用于放置卡爪，空心长方体的内壁上设置有多个斜刺体303，将壳体40固定在第二连接块上形成两个密闭腔室304，密闭腔室之间通过管道305连接；壳体，壳体上设置有第三螺纹孔401，用于固定将壳体40和第二连接块。第二连接块的空心圆柱体和空心长方体内壁上设置有耐磨涂层，用于增加融合器的使用寿命和耐久性。卡爪的下半部长方体上设置有密封部件，以保证密闭腔室形成气压，使卡爪向上移动。壳体的外表面设置有生物相容性涂层，用于减少人体组织对融合器的异物反应，促进愈合过程，降低患者手术后的不适感和并发症风险。壳体上还设置有磁共振成像透明材料，以便在需要进行医学影像检查时，不需要拆除融合器，方便医生进行随时的影像监测。第一连接块的第一螺纹和卡爪的第二螺纹孔之间设置有锁紧垫圈，用于确保连接部位的紧固度，防止因外力震动导致的松动现象。第二连接块的外表面覆盖有生物陶瓷涂层，具有良好的生物相容性和耐磨性，促进融合器与周围骨组织的融合，提高手术效果和持久性。寰枢椎侧块关节融合器内部空腔填充有骨形态发生蛋白，用于刺激骨细胞增生和分化，促使新骨组织的形成，加速骨融合过程。As shown in Figures 1-9, an atlantoaxial lateral mass joint fusion device includes: a first connecting block 10, which is provided with a first threaded hole 101; a claw 20, which is formed from the upper half of the It is composed of a cylinder and a rectangular parallelepiped in the lower half, in which a triangular buckle 201 is provided on the short side surface of the cuboid, an elastic component 202 is provided between the buckle and the cuboid, and a second threaded hole 203 is provided in the center of the claw. The claw and the first connecting block are fixedly connected through the second threaded hole 203 and the first thread 101; the second connecting block 30 is provided with two hollow cylinders and a hollow rectangular parallelepiped for placing the claws. A plurality of slanting bodies 303 are provided on the inner wall, and the shell 40 is fixed on the second connecting block to form two sealed chambers 304. The sealed chambers are connected through pipes 305; the shell is provided with a third The threaded hole 401 is used to fix the housing 40 and the second connecting block. The inner walls of the hollow cylinder and hollow cuboid of the second connecting block are provided with a wear-resistant coating to increase the service life and durability of the fusion device. The lower half of the rectangular parallelepiped of the claw is provided with a sealing component to ensure that air pressure is formed in the airtight chamber, causing the claw to move upward. The outer surface of the shell is provided with a biocompatible coating to reduce the foreign body reaction of human tissue to the cage, promote the healing process, and reduce the patient's discomfort and risk of complications after surgery. The shell is also provided with magnetic resonance imaging transparent material, so that when medical imaging examination is required, the fusion device does not need to be removed, making it convenient for doctors to perform image monitoring at any time. A locking washer is provided between the first thread of the first connecting block and the second threaded hole of the claw to ensure the tightness of the connection part and prevent loosening caused by external vibration. The outer surface of the second connecting block is covered with a bioceramic coating, which has good biocompatibility and wear resistance, promotes the fusion of the cage and surrounding bone tissue, and improves the surgical effect and durability. The internal cavity of the atlantoaxial lateral mass joint cage is filled with bone morphogenetic protein, which is used to stimulate the proliferation and differentiation of bone cells, promote the formation of new bone tissue, and accelerate the bone fusion process.
在使用的过程中，先将融合器进行初步的安装，把卡爪穿过第二连接块与第一连接块螺纹连接，然后将壳体固定在第二连接块上，以此在第二连接块的内部形成密闭腔室，然后把融合器放置在寰枢椎的位置，由于此时的融合器体积小，所以很容易放置在一个合适的位置，并且调整至合适的角度，然后从进气孔充入气体，由于两个密闭腔室是连通的，所以两个卡爪会同时向上移动，将融合器固定在寰枢椎之间，该发明的优点在于可调节的结构避免了规格化产品的生产，可以根据病患情况和身体结构做出调整，且由于卡扣的存在，寰枢椎关节侧块融合器的运动是不可逆的，在保证可调节的同时也提高了融合器的稳定性。During use, first perform a preliminary installation of the fusion device, thread the claws through the second connection block to the first connection block, and then fix the shell on the second connection block, thereby connecting the second connection block to the first connection block. A closed chamber is formed inside the block, and then the cage is placed at the atlantoaxial position. Since the cage is small in size at this time, it is easy to place it in a suitable position and adjust it to a suitable angle, and then from the air inlet The hole is filled with gas. Since the two sealed chambers are connected, the two claws will move upward at the same time to fix the fusion between the atlanto-axial vertebrae. The advantage of this invention is that the adjustable structure avoids standardized products. The production can be adjusted according to the patient's condition and body structure, and due to the existence of the buckle, the movement of the atlantoaxial joint lateral mass fusion cage is irreversible, which ensures the adjustability while also improving the stability of the fusion cage. .
如图3所示，弹性部件202可以是弹簧，其中，201的运动角度是受限制的，图3示的角度是卡爪的极限角度，在弹簧的作用下，卡爪可以向内伸缩，以保证卡爪可以沿纵向方向向上运动，弹性部件还可以是橡胶等结构。针对不同的病患程度，仅需通过进气孔加入不同体量的气体即可实现寰枢椎侧块关节融合器的高度调节，在手术完成后，借助本发明的磁共振成像透明材料可以更加清晰的观测融合器的融合效果，方便在二次植入的过程中作出相应的调整。在融合器与人体骨骼接触的部位设置有生物涂层或者骨小梁结构以更进一步的提高融合器的融合效果。As shown in Figure 3, the elastic component 202 can be a spring, in which the movement angle of 201 is limited. The angle shown in Figure 3 is the limit angle of the claw. Under the action of the spring, the claw can expand and contract inward to It is ensured that the claw can move upward in the longitudinal direction, and the elastic component can also be a rubber or other structure. For different patient conditions, the height of the atlantoaxial lateral mass joint fusion cage can be adjusted by adding different volumes of gas through the air inlet. After the operation is completed, the magnetic resonance imaging transparent material of the present invention can be used to adjust the height of the atlantoaxial lateral mass joint fusion device more accurately. Clearly observe the fusion effect of the fusion device, making it easy to make corresponding adjustments during the secondary implantation process. A biological coating or trabecular bone structure is provided at the contact point between the fusion cage and human bones to further improve the fusion effect of the cage.
在本发明的描述中，需要理解的是，方位词如“前、后、上、下、左、右”、“横向、竖向、垂直、水平”和“顶、底”等所指示的方位或位置关系通常是基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，在未作相反说明的情况下，这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作，因此不能理解为对本发明保护范围的限制；方位词“内、外”是指相对于各部件本身的轮廓的内外。In the description of the present invention, it should be understood that the orientation indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description. Without explanation to the contrary, these directional words do not indicate and imply the referred devices or components. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the scope of the present invention; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
为了便于描述，在这里可以使用空间相对术语，如“在……之上”、“在……上方”、“在……上表面”、“上面的”等，用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是，空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如，如果附图中的器件被倒置，则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而，示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位 ( 旋转 90 度或处于其他方位)，并且对这里所使用的空间相对描述作出相应解释。For the convenience of description, spatially relative terms can be used here, such as "on...", "on...", "on the upper surface of...", "above", etc., to describe what is shown in the figure. The spatial relationship between one device or feature and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a feature in the figure is turned upside down, then one feature described as "above" or "on top of" other features or features would then be oriented "below" or "below" the other features or features. under other devices or structures". Thus, the exemplary term "over" may include both orientations "above" and "below." The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
此外，需要说明的是，使用“第一”、“第二”等词语来限定零部件，仅仅是为了便于对相应零部件进行区别，如没有另行声明，上述词语并没有特殊含义，因此不能理解为对本发明保护范围的限制。In addition, it should be noted that the use of words such as "first" and "second" to define parts is only to facilitate the distinction between corresponding parts. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood. To limit the scope of protection of the present invention.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311481437.7ACN117204990A (en) | 2023-11-09 | 2023-11-09 | An atlantoaxial lateral mass joint fusion device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311481437.7ACN117204990A (en) | 2023-11-09 | 2023-11-09 | An atlantoaxial lateral mass joint fusion device |
| Publication Number | Publication Date |
|---|---|
| CN117204990Atrue CN117204990A (en) | 2023-12-12 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311481437.7APendingCN117204990A (en) | 2023-11-09 | 2023-11-09 | An atlantoaxial lateral mass joint fusion device |
| Country | Link |
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| CN (1) | CN117204990A (en) |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | Application publication date:20231212 |