技术领域Technical field
本发明带钉道的连体式腰椎融合器，涉及医疗器械技术领域，具体而言椎间融合内固定植入物，尤其涉及一种带钉道的连体式腰椎融合器。The one-piece lumbar fusion device with screw channels of the present invention relates to the technical field of medical devices, specifically intervertebral fusion internal fixation implants, and particularly relates to a one-piece lumbar fusion device with screw channels.
背景技术Background technique
后路椎间融合手术的主要思路为减压、复位、内固定、融合四部分。其主要步骤为通过去除病变的椎间盘，骨赘和骨化韧带来减轻脊髓或神经根的压迫，以减轻患者的疼痛，再通过植入适当的融合器来稳定减压的节段，以最大程度地减少融合节段之间的相对运动。最后，通过形成外科节段的皮质骨、骨小梁等结构结合来消除相邻椎骨之间的运动，使其连接成一个整体。因此后路腰椎椎间融合术具有前柱支撑、间接减压和恢复脊柱前凸角等优势，术中视野相对较好，可行双侧减压及植骨，并取得良好的临床疗效及融合率因此被广泛使用。The main idea of posterior intervertebral fusion surgery is four parts: decompression, reduction, internal fixation and fusion. The main steps are to reduce the compression of the spinal cord or nerve roots by removing the diseased intervertebral disc, osteophytes and ossified ligaments to reduce the patient's pain, and then stabilize the decompressed segments by implanting appropriate cages to maximize Reduce relative motion between fused segments. Finally, the movement between adjacent vertebrae is eliminated by combining the cortical bone, trabecular bone and other structures that form the surgical segment, connecting them into a whole. Therefore, posterior lumbar interbody fusion has the advantages of anterior column support, indirect decompression, and restoration of lordosis angle. The intraoperative field of view is relatively good, bilateral decompression and bone grafting are feasible, and good clinical efficacy and fusion rate are achieved. Therefore it is widely used.
但后路手术需在减压侧行手术节段的椎板、关节突关节内侧及棘突进行部分切除，破坏脊柱后柱结构，严重影响其稳定性。传统方式一般需采用双侧椎弓根螺钉与钛棒内固定系统配合植入的椎间融合器一起使用，才能维持融合过程的稳定性，这种方式增大了手术创伤面积。However, posterior surgery requires partial resection of the lamina, inner facet joints, and spinous processes of the surgical segment on the decompression side, which destroys the structure of the posterior column of the spine and seriously affects its stability. Traditional methods generally require the use of bilateral pedicle screws and titanium rod internal fixation systems in conjunction with implanted intervertebral cages to maintain the stability of the fusion process. This method increases the surgical trauma area.
由于后路空间内椎管等结构地限制了融合器体积的大小，两枚对称放置的后路椎间融合器不能完美闭合，导致内部填充的骨移植材料容易从椎间隙中脱落至椎管附近，甚至影响神经根及脊髓。Since the spinal canal and other structures in the posterior space limit the size of the cage, two symmetrically placed posterior intervertebral cages cannot be perfectly closed, causing the internally filled bone graft material to easily fall out of the intervertebral space and reach the vicinity of the spinal canal. , even affecting the nerve roots and spinal cord.
针对上述现有技术中所存在的问题，研究设计一种新型的带钉道的连体式腰椎融合器，从而克服现有技术中所存在的问题是十分必要的。In view of the above-mentioned problems existing in the prior art, it is necessary to research and design a new type of one-piece lumbar fusion device with nail channels to overcome the problems existing in the prior art.
发明内容Contents of the invention
根据上述现有技术提出的传统椎间融合器手术创伤面大、两枚对称放置的融合器不能完美闭合，导致内部填充的骨移植材料由椎间隙脱落至椎管附近，影响神经根及脊髓的技术问题，而提供一种带钉道的连体式腰椎融合器，从而实现融合器尾端闭合的同时达到更高的稳定性。The traditional intervertebral fusion surgery proposed based on the above-mentioned existing technology has large trauma, and the two symmetrically placed fusion cages cannot be perfectly closed, causing the internally filled bone graft material to fall from the intervertebral space to the vicinity of the spinal canal, affecting the nerve roots and spinal cord. Technical problems are solved, and a one-piece lumbar fusion cage with screw channels is provided to achieve higher stability while closing the tail end of the fusion cage.
本发明采用的技术手段如下：The technical means adopted in the present invention are as follows:
一种带钉道的连体式腰椎融合器包括：融合器本体、内部滑块和上封盖；A one-piece lumbar fusion with nail channels includes: a fusion body, an internal slide block and an upper cover;
进一步地，融合器本体是由前部的融合部分和后部的组装部分一体加工而成；Further, the cage body is integrally processed from the front fusion part and the rear assembly part;
进一步地，融合部分上设置有楔形植入端、用于骨移植的植骨窗、以及与上下椎体终板接触的斜齿状凸起A和斜齿状凸起B；Further, the fusion part is provided with a wedge-shaped implant end, a bone grafting window for bone grafting, and bevel-shaped protrusions A and bevel-shaped protrusions B that are in contact with the upper and lower vertebral body endplates;
进一步地，组装部分上设置有内部滑块空间以及用于夹持器械平移滑动的滑道孔；Further, the assembly part is provided with an internal slider space and a slideway hole for the translational sliding of the holding instrument;
进一步地，融合器本体的内部开设有从后向前斜向贯穿上下端面的固定螺纹孔；Further, a fixing threaded hole is provided in the interior of the fusion cage body and penetrates the upper and lower end surfaces obliquely from back to front;
进一步地，内部滑块的前端面和后端面上设置有对称的滑动轴A和滑动轴B、楔形滑齿A和楔形滑齿B以及贯穿的夹持螺纹孔；Further, the front and rear end surfaces of the inner slide block are provided with symmetrical sliding shafts A and B, wedge-shaped sliding teeth A and wedge-shaped sliding teeth B, and penetrating clamping threaded holes;
进一步地，上封盖上设置有固定圆柱杆、滑块松弛孔及卡扣A和卡扣B；Further, the upper cover is provided with a fixed cylindrical rod, a slider slack hole, and buckles A and B;
进一步地，内部滑块装于组装部分的内部滑块空间中，并通过上封盖进行封盖。Further, the inner slider is installed in the inner slider space of the assembly part and is covered by the upper cover.
进一步地，融合器本体的外侧面轮廓形状与相邻椎体终板轮廓相近；Further, the outer surface contour shape of the fusion cage body is similar to the contour shape of the adjacent vertebral body endplate;
进一步地，融合器本体的上下端面设计有与患者腰椎生理曲度相符的夹角。Furthermore, the upper and lower end surfaces of the fusion cage body are designed with an included angle consistent with the physiological curvature of the patient's lumbar spine.
进一步地，融合部分的前端为楔形植入端，楔形植入端上设置有放置显影针的显影针孔，显影针利于医师定位融合器本体的置入位置。Further, the front end of the fusion part is a wedge-shaped implant end, and the wedge-shaped implant end is provided with a developing pinhole for placing a developing needle. The developing needle facilitates the physician to locate the insertion position of the fusion device body.
进一步地，融合部分的上端面设置有未贯通下端面的第一植骨窗，下端面对称位置设置有未贯通上端面的第二植骨窗；Further, the upper end surface of the fusion part is provided with a first bone grafting window that does not penetrate the lower end surface, and the lower end surface is provided with a second bone grafting window at a symmetrical position that does not penetrate the upper end surface;
进一步地，融合部分设置有一个贯通内外侧面的第三植骨窗；Further, the fusion part is provided with a third bone grafting window penetrating the inner and outer sides;
进一步地，融合部分的内部，第三植骨窗分别与第一植骨窗、第二植骨窗相连通。Further, inside the fusion part, the third bone grafting window is connected with the first bone grafting window and the second bone grafting window respectively.
进一步地，融合部分与上、下椎体终板接触的上、下端面分别设置有防止产生移位的斜齿状凸起A和斜齿状凸起B；Further, the upper and lower end surfaces of the fusion part in contact with the upper and lower vertebral body endplates are respectively provided with bevel-shaped protrusions A and bevel-shaped protrusions B to prevent displacement;
进一步地，斜齿状凸起A和斜齿状凸起B的形状为梯形，且在前端面一侧的梯形斜面与竖直面的夹角较后端面一侧的梯形斜面与竖直面的夹角大。Further, the shapes of the bevel-toothed protrusions A and the bevel-toothed protrusions B are trapezoidal, and the angle between the trapezoidal bevel and the vertical surface on the front end surface side is smaller than the angle between the trapezoidal bevel and the vertical surface on the rear end surface side. The angle is large.
进一步地，组装部分的内部滑块空间内设置有对称的滑动轴通道；Further, a symmetrical sliding shaft channel is provided in the internal slider space of the assembly part;
进一步地，组装部分前后端面设置与内部滑块外型相符的内倾角；Further, the front and rear end surfaces of the assembly part are set with an inclination angle consistent with the appearance of the internal slider;
进一步地，组装部分靠近融合器本体内侧面的位置存在两枚相对的楔形滑齿凸起A和楔形滑齿凸起B；Further, there are two opposite wedge-shaped sliding tooth protrusions A and wedge-shaped sliding tooth protrusions B near the inner surface of the cage body in the assembly part;
进一步地，组装部分靠近内部滑块空间内侧的滑齿斜面与竖直面的夹角大于外侧的滑齿斜面与竖直面的夹角。Further, the angle between the inclined surface of the sliding tooth and the vertical surface on the inside of the inner slider space of the assembly part is greater than the angle between the inclined surface of the sliding tooth and the vertical surface on the outside.
进一步地，组装部分的后端面设置有贯穿的滑道孔；Further, the rear end surface of the assembly part is provided with a penetrating slide hole;
进一步地，组装部分的下端面设置有贯穿的滑块松弛孔；Further, the lower end surface of the assembly part is provided with a penetrating slider relaxation hole;
进一步地，组装部分的前后端面上均设置有两个用于配合的卡孔A和卡孔B；Further, two clamping holes A and B for matching are provided on the front and rear end surfaces of the assembly part;
进一步地，组装部分的上端面上设置有用于固定上封盖的固定圆柱孔。Further, a fixing cylindrical hole for fixing the upper cover is provided on the upper end surface of the assembly part.
进一步地，融合器本体上设置有由组装部分的后端面靠下区域至融合部分上端面区域，斜向贯穿融合器本体的固定螺纹孔；Further, the cage body is provided with a fixing threaded hole that runs diagonally through the cage body from the lower area of the rear end surface of the assembly part to the upper end surface area of the fusion part;
进一步地，固定螺纹孔为椎弓根螺钉钉道孔。Further, the fixing threaded hole is a pedicle screw hole.
进一步地，内部滑块的前端面、后端面与竖直面分别存在向内的1°夹角以增强内部滑块滑出后的固定效果；Further, the front end surface, rear end surface and vertical surface of the internal slider each have an inward angle of 1° to enhance the fixing effect after the internal slider slides out;
进一步地，前端面上设置有一个滑动轴A；Further, a sliding shaft A is provided on the front end surface;
进一步地，后端面上设置有一个与滑动轴A对称的滑动轴B；Further, a sliding axis B symmetrical to the sliding axis A is provided on the rear end surface;
进一步地，内部滑块上设置有贯穿前端面和后端面的夹持螺纹孔，与夹持器械的前端螺纹相配合，将内部滑块滑出融合器本体；Further, the internal slider is provided with a clamping threaded hole that penetrates the front end surface and the rear end surface, and cooperates with the front end thread of the clamping instrument to slide the internal slider out of the fusion device body;
进一步地，内部滑块的前端面和后端面分别设有一排对称的滑槽，滑槽内设有楔形滑齿A和楔形滑齿B；Further, the front end face and the rear end face of the internal slide block are respectively provided with a row of symmetrical chute, and the chute is provided with wedge-shaped sliding teeth A and wedge-shaped sliding teeth B;
进一步地，楔形滑齿A和楔形滑齿B外侧面一侧的斜面与竖直面的夹角较内端面一侧的斜面与竖直面的夹角大，有利于内部滑块的滑出固定并减少滑出后反向移位的可能。Furthermore, the angle between the inclined surface on the outer side of the wedge-shaped sliding tooth A and the wedge-shaped sliding tooth B and the vertical surface is larger than the angle between the inclined surface on the inner end surface and the vertical surface, which is beneficial to the sliding out and fixing of the internal slider. And reduce the possibility of reverse displacement after sliding out.
进一步地，上封盖上、下端面设置有贯穿的滑块松弛孔；Further, the upper and lower end surfaces of the upper cover are provided with penetrating slider relaxation holes;
进一步地，上封盖通过下端面上的固定圆柱杆与融合器本体上的固定圆柱孔实现嵌合，并通过前端面卡扣和后端面卡扣卡住融合器本体上的卡孔A和卡孔B，以避免上封盖滑移脱落的现象。Further, the upper cover is fitted with the fixed cylindrical hole on the fusion cage body through the fixed cylindrical rod on the lower end surface, and the clamping hole A and the clamping hole A on the fusion cage body are clamped through the front end surface buckle and the rear end surface buckle. Hole B to prevent the upper cover from slipping off.
本发明的使用(手术)过程为：The use (surgery) process of the present invention is:
将患者在后腰部需手术的位置进行手术切口，剥开附着的软组织显露出腰椎骨性结构；将椎体后部附着的肌肉、韧带等组织及部分椎板、关节突进行切除使其显露出可以容纳融合器植入的空间通道；将刮刀从椎间隙伸入，使其将椎间盘内的髓核及后部纤维环刮除干净,待融合器植入。The patient will make a surgical incision in the lower back where surgery is required, peel off the attached soft tissue to reveal the bony structure of the lumbar spine; remove the muscles, ligaments and other tissues attached to the back of the vertebral body as well as part of the lamina and articular processes to expose them The space channel that can accommodate the implantation of the cage; extend the scraper from the intervertebral space to scrape out the nucleus pulposus and posterior annulus fibrosus in the intervertebral disc, waiting for the cage to be implanted.
将显影针放入融合器本体上的显影针孔，并将所需的骨移植材料填满三个植骨窗中；接下来利用夹持器械前端螺纹旋入融合器内部滑块的夹持螺纹孔，将融合器置入处理干净且填充部分骨移植材料后的椎间隙中，通过观察显影针的位置来判断融合器本体是否达到计划区域；将椎弓根螺钉从预定进钉点斜向内上旋入，使其经过椎弓根内部皮质上缘，穿透下锥体的上表面与融合器本体的固定螺纹孔相匹配，实现下锥体与融合器本体的固定；椎弓根螺钉旋出固定螺纹孔，继续旋入，穿透上锥体的下表面一定距离后，停止旋入；用相同方法将另一侧融合器置入椎间隙并固定于上下椎体之间。将夹持器向椎体中心方向移动，使融合器内部滑块滑出内部滑块空间，至与另一侧滑出的内部滑块产生贴合后停止移动。之后，将夹持器械反向旋出融合器本体尾端，完成带钉道的连体式腰椎融合器的植入与固定。Place the developing needle into the developing pinhole on the fusion cage body, and fill the three bone grafting windows with the required bone graft material; then use the front thread of the clamping instrument to screw into the clamping thread of the internal slide of the fusion cage hole, place the cage into the intervertebral space that has been cleaned and filled with part of the bone graft material, and judge whether the cage body has reached the planned area by observing the position of the developing needle; move the pedicle screws obliquely inward from the predetermined screw entry point Screw upward so that it passes through the upper edge of the inner cortex of the vertebral pedicle, penetrates the upper surface of the lower cone, and matches the fixing threaded hole of the fusion body to achieve the fixation of the lower cone and the fusion body; the pedicle screw is screwed Exit the fixed threaded hole, continue to screw in, and after penetrating the lower surface of the upper cone for a certain distance, stop screwing in; use the same method to insert the other side of the fusion cage into the intervertebral space and fix it between the upper and lower vertebral bodies. Move the holder toward the center of the vertebral body so that the internal slider of the fusion cage slides out of the internal slider space until it fits the internal slider that slides out on the other side and then stops moving. Afterwards, the clamping instrument is reversely rotated out of the tail end of the fusion body to complete the implantation and fixation of the one-piece lumbar fusion with screw channels.
较现有技术相比，本发明带钉道的连体式腰椎椎间融合器在后路椎间融合术PLIF应用中的显著优势在于：Compared with the existing technology, the significant advantages of the one-piece lumbar interbody fusion cage with screw channels of the present invention in the application of posterior interbody fusion PLIF are:
1、本发明提供的带钉道的连体式腰椎融合器，固定螺纹孔的设计在减少了椎弓根螺钉及钛棒的使用量的同时能保证融合器本体与上下椎体之间存在更高的融合稳定性；1. In the one-piece lumbar fusion with screw channels provided by the present invention, the design of the fixed threaded holes reduces the use of pedicle screws and titanium rods while ensuring that there is more space between the fusion body and the upper and lower vertebral bodies. High fusion stability;
2、本发明提供的带钉道的连体式腰椎融合器，带有内部滑块结构，可与另一侧融合器滑出的内部滑块相贴合，使两枚融合器之间的骨移植材料稳定存在于椎间隙中，降低了骨移植物掉落出椎间隙的可能。2. The one-piece lumbar fusion cage with nail channels provided by the present invention has an internal slider structure, which can fit with the internal slider of the fusion cage on the other side, so that the bone between the two fusion cages can be The graft material is stably present in the intervertebral space, reducing the possibility of the bone graft falling out of the intervertebral space.
综上，应用本发明的技术方案解决了现有技术中的传统椎间融合器手术创伤面大、两枚对称放置的融合器不能完美闭合，导致内部填充的骨移植材料由椎间隙脱落至椎管附近，影响神经根及脊髓的问题。In summary, the technical solution of the present invention is applied to solve the problem in the prior art that the traditional intervertebral fusion surgery has a large trauma surface and the two symmetrically placed fusion cages cannot be perfectly closed, causing the internally filled bone graft material to fall off from the intervertebral space to the vertebrae. Near the tube, problems affecting nerve roots and spinal cord.
附图说明Description of the drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图做以简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.
图1为本发明立体结构示意图；Figure 1 is a schematic diagram of the three-dimensional structure of the present invention;
图2为本发明融合器本体的立体结构示意图；Figure 2 is a schematic three-dimensional structural diagram of the fusion device body of the present invention;
图3为本发明融合器本体上端面结构示意图；Figure 3 is a schematic structural diagram of the upper end surface of the fusion device body of the present invention;
图4为本发明融合器本体下端面结构示意图；Figure 4 is a schematic structural diagram of the lower end surface of the fusion device body of the present invention;
图5为本发明融合器本体外侧面结构示意图；Figure 5 is a schematic structural diagram of the outer side of the fusion device body of the present invention;
图6为本发明融合器本体内侧面结构示意图；Figure 6 is a schematic structural diagram of the inner side of the fusion device body of the present invention;
图7为本发明融合器本体前端面结构示意图；Figure 7 is a schematic structural diagram of the front end surface of the fusion device body of the present invention;
图8为本发明融合器本体后端面结构示意图；Figure 8 is a schematic structural diagram of the rear end surface of the fusion device body of the present invention;
图9为本发明图2中固定螺纹孔的轴剖图；Figure 9 is an axial cross-sectional view of the fixed threaded hole in Figure 2 of the present invention;
图10为本发明融合器表面斜齿状凸起局部放大示意图；Figure 10 is a partially enlarged schematic diagram of the oblique tooth-like protrusions on the surface of the cage of the present invention;
图11为本发明融合器本体内部滑块空间的局部放大示意图；Figure 11 is a partially enlarged schematic diagram of the slider space inside the cage body of the present invention;
图12为本发明内部滑块的下端面示意图；Figure 12 is a schematic view of the lower end face of the internal slider of the present invention;
图13为本发明内部滑块的前端面示意图；Figure 13 is a schematic view of the front end of the internal slider of the present invention;
图14为本发明内部滑块的外侧面示意图；Figure 14 is a schematic view of the outer side of the internal slider of the present invention;
图15为本发明内部滑块的楔形滑齿局部放大示意图；Figure 15 is a partially enlarged schematic diagram of the wedge-shaped sliding teeth of the internal slider of the present invention;
图16为本发明上封盖的下端面示意图；Figure 16 is a schematic view of the lower end of the upper cover of the present invention;
图17为本发明上封盖的前端面示意图；Figure 17 is a schematic view of the front end of the upper cover of the present invention;
图18为本发明上封盖的内侧面示意图。Figure 18 is a schematic view of the inner side of the upper cover of the present invention.
图中：In the picture:
1、融合器本体；1. Fusion device body;
11、融合部分111、楔形植入端112、显影针孔113、第一植骨窗114、第二植骨窗115、第三植骨窗116、斜齿状凸起A 117、斜齿状凸起B 118、固定螺纹孔；11. Fusion part 111, wedge-shaped implant end 112, developing pinhole 113, first bone grafting window 114, second bone grafting window 115, third bone grafting window 116, beveled dentate protrusion A 117, beveled dentate protrusion From B 118, fixed threaded hole;
12、组装部分121、内部滑块空间122、滑道孔123、楔形滑齿凸起A 124、楔形滑齿凸起B 125、滑块松弛孔126、卡孔A 127、卡孔B 128、固定圆柱孔129、滑动轴通道；12. Assembly part 121, internal slider space 122, slide hole 123, wedge-shaped sliding tooth protrusion A 124, wedge-shaped sliding tooth protrusion B 125, slider slack hole 126, card hole A 127, card hole B 128, fixation Cylindrical hole 129, sliding shaft channel;
2、内部滑块；2. Internal slider;
21、前端面211、滑动轴A 212、楔形滑齿A 213、夹持螺纹孔；21. Front end face 211, sliding shaft A 212, wedge-shaped sliding tooth A 213, clamping threaded hole;
22、后端面221、滑动轴B 222、楔形滑齿B；22. Rear end face 221, sliding shaft B 222, wedge-shaped sliding tooth B;
3、上封盖；3. Upper cover;
31、固定圆柱杆；31. Fixed cylindrical rod;
32、滑块松弛孔；32. Slider relaxation hole;
33、卡扣A；33. Buckle A;
34、卡扣B。34. Buckle B.
具体实施方式Detailed ways
需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
为使本发明实施例的目的、技术方案和优点更加清楚，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、完整地描述，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做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。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments These are only some embodiments of the present invention, rather than all embodiments. 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 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发明的示例性实施方式。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 for the purpose of describing specific embodiments only, and are not intended to limit the exemplary embodiments according to the present invention. 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，应当清楚，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己知的技术、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，示例性实施例的其它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 equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and equipment 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.
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. Must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the scope of the 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“在其位器件或构造之下”。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. It lies beneath the device or structure." 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.
如图1-8所示，本发明提供了一种带钉道的连体式腰椎融合器包括：融合器本体1、内部滑块2和上封盖3；融合器本体1是由前部的融合部分11和后部的组装部分12一体加工而成；融合部分11上设置有楔形植入端111、用于骨移植的植骨窗、以及与上下椎体终板接触的斜齿状凸起A116和斜齿状凸起B117；组装部分12上设置有内部滑块空间121以及用于夹持器械平移滑动的滑道孔122；融合器本体1的内部开设有从后向前斜向贯穿上下端面的固定螺纹孔118；内部滑块2的前端面21和后端面22上设置有对称的滑动轴A211和滑动轴B221、楔形滑齿A212和楔形滑齿B222以及贯穿的夹持螺纹孔213；上封盖3上设置有固定圆柱杆31、滑块松弛孔32及卡扣A33和卡扣B34；内部滑块2装于组装部分12的内部滑块空间121中，并通过上封盖3进行封盖。As shown in Figures 1-8, the present invention provides a one-piece lumbar fusion cage with nail channels, including: a cage body 1, an internal slider 2 and an upper cover 3; the cage body 1 is composed of a front part The fusion part 11 and the rear assembly part 12 are integrally processed; the fusion part 11 is provided with a wedge-shaped implant end 111, a bone grafting window for bone transplantation, and a bevel-shaped protrusion in contact with the upper and lower vertebral body endplates. A116 and bevel-toothed protrusion B117; the assembly part 12 is provided with an internal slider space 121 and a slideway hole 122 for holding instruments for translational sliding; the interior of the cage body 1 is provided with an internal slider space 121 that runs diagonally from back to front and runs through the upper and lower parts. The fixed threaded hole 118 on the end face; the front end face 21 and the rear end face 22 of the inner slide block 2 are provided with symmetrical sliding shafts A211 and B221, wedge-shaped sliding teeth A212 and wedge-shaped sliding teeth B222, and penetrating clamping threaded holes 213; The upper cover 3 is provided with a fixed cylindrical rod 31, a slider slack hole 32, buckles A33 and B34; the inner slider 2 is installed in the inner slider space 121 of the assembly part 12, and is carried out through the upper cover 3 Cover.
如图1所示，融合器本体1的外侧面轮廓形状与相邻椎体终板轮廓相近；融合器本体1的上下端面设计有与患者腰椎生理曲度相符的夹角。As shown in Figure 1, the outer surface contour shape of the cage body 1 is similar to the contour of the adjacent vertebral body endplate; the upper and lower end surfaces of the cage body 1 are designed with an included angle consistent with the physiological curvature of the patient's lumbar spine.
如图3-7所示，融合部分11的前端为楔形植入端111，楔形植入端111上设置有放置显影针的显影针孔112，显影针利于医师定位融合器本体1的置入位置。As shown in Figure 3-7, the front end of the fusion part 11 is a wedge-shaped implant end 111. The wedge-shaped implant end 111 is provided with a developing pinhole 112 for placing a developing needle. The developing needle facilitates the physician in locating the insertion position of the cage body 1 .
如图3-7、9所示，融合部分11的上端面设置有未贯通下端面的第一植骨窗113，下端面对称位置设置有未贯通上端面的第二植骨窗114；融合部分11设置有一个贯通内外侧面的第三植骨窗115；融合部分11的内部，第三植骨窗115分别与第一植骨窗113、第二植骨窗114相连通。As shown in Figures 3-7 and 9, the upper end surface of the fusion part 11 is provided with a first bone graft window 113 that does not penetrate the lower end surface, and a second bone graft window 114 that does not penetrate the upper end surface is provided at a symmetrical position on the lower end surface; fusion The part 11 is provided with a third bone grafting window 115 that penetrates the inner and outer surfaces; inside the fusion part 11, the third bone grafting window 115 is connected to the first bone grafting window 113 and the second bone grafting window 114 respectively.
如图3-6、9-10所示，融合部分11与上、下椎体终板接触的上、下端面分别设置有防止产生移位的斜齿状凸起A116和斜齿状凸起B117；斜齿状凸起A116和斜齿状凸起B117的形状为梯形，且在前端面一侧的梯形斜面与竖直面的夹角较后端面一侧的梯形斜面与竖直面的夹角大。As shown in Figures 3-6 and 9-10, the upper and lower end surfaces of the fusion part 11 that are in contact with the upper and lower vertebral body endplates are respectively provided with bevel-shaped protrusions A116 and bevel-shaped protrusions B117 to prevent displacement. ; The shapes of the bevel-toothed protrusion A116 and the bevel-toothed protrusion B117 are trapezoidal, and the angle between the trapezoidal bevel on the front end face side and the vertical face is larger than the angle between the trapezoidal bevel on the rear end face side and the vertical face. big.
如图6-8、11-12所示，组装部分12的内部滑块空间121内设置有对称的滑动轴通道129；组装部分12前后端面设置与内部滑块2外型相符的内倾角；组装部分12靠近融合器本体1内侧面的位置存在两枚相对的楔形滑齿凸起A123和楔形滑齿凸起B124；组装部分12靠近内部滑块空间121内侧的滑齿斜面与竖直面的夹角大于外侧的滑齿斜面与竖直面的夹角。As shown in Figures 6-8 and 11-12, the internal slider space 121 of the assembly part 12 is provided with a symmetrical sliding shaft channel 129; the front and rear end surfaces of the assembly part 12 are provided with an inclination angle consistent with the appearance of the internal slider 2; assembly There are two opposite wedge-shaped sliding tooth protrusions A123 and wedge-shaped sliding tooth protrusions B124 in the position of the part 12 close to the inner surface of the cage body 1; the assembly part 12 is close to the sandwiching between the sliding tooth bevel and the vertical surface on the inside of the internal slider space 121. The angle is greater than the angle between the outer sliding tooth slope and the vertical surface.
如图6-8、11-12所示，组装部分12的后端面设置有贯穿的滑道孔122；组装部分12的下端面设置有贯穿的滑块松弛孔125；组装部分12的前后端面上均设置有两个用于配合的卡孔A126和卡孔B 127；组装部分12的上端面上设置有用于固定上封盖的固定圆柱孔128。As shown in Figures 6-8 and 11-12, the rear end surface of the assembly part 12 is provided with a through slide hole 122; the lower end surface of the assembly part 12 is provided with a through slider relaxation hole 125; the front and rear end surfaces of the assembly part 12 Both are provided with two clamping holes A126 and B127 for mating; the upper end surface of the assembly part 12 is provided with a fixing cylindrical hole 128 for fixing the upper cover.
如图3-5、8-9所示，融合器本体1上设置有由组装部分12的后端面靠下区域至融合部分11上端面区域，斜向贯穿融合器本体1的固定螺纹孔118；固定螺纹孔118为椎弓根螺钉钉道孔。As shown in Figures 3-5 and 8-9, the cage body 1 is provided with a fixing threaded hole 118 that runs diagonally through the cage body 1 from the lower area of the rear end surface of the assembly part 12 to the upper end surface area of the fusion part 11; The fixed threaded hole 118 is a pedicle screw hole.
如图13-15所示，内部滑块2的前端面21、后端面22与竖直面分别存在向内的1°夹角以增强内部滑块2滑出后的固定效果；前端面21上设置有一个滑动轴A211；后端面22上设置有一个与滑动轴A211对称的滑动轴B 221；内部滑块2上设置有贯穿前端面21和后端面22的夹持螺纹孔213，与夹持器械的前端螺纹相配合，将内部滑块2滑出融合器本体1；内部滑块2的前端面21和后端面22分别设有一排对称的滑槽，滑槽内设有楔形滑齿A212和楔形滑齿B222；楔形滑齿A212和楔形滑齿B222外侧面一侧的斜面与竖直面的夹角较内端面一侧的斜面与竖直面的夹角大，有利于内部滑块2的滑出固定并减少滑出后反向移位的可能。As shown in Figure 13-15, the front end surface 21, the rear end surface 22 of the inner slider 2 and the vertical surface respectively have an inward angle of 1° to enhance the fixing effect of the inner slider 2 after it slides out; on the front end surface 21 A sliding shaft A211 is provided; the rear end face 22 is provided with a sliding shaft B 221 that is symmetrical with the sliding shaft A211; the inner slider 2 is provided with a clamping threaded hole 213 that penetrates the front end face 21 and the rear end face 22, and is connected with the clamping The front end threads of the instrument cooperate to slide the internal slide block 2 out of the fusion device body 1; the front end surface 21 and the rear end surface 22 of the internal slide block 2 are respectively provided with a row of symmetrical slide grooves, and the slide grooves are provided with wedge-shaped sliding teeth A212 and The angle between the bevel on the outer side of the wedge-shaped sliding tooth B222, the wedge-shaped sliding tooth A212 and the wedge-shaped sliding tooth B222 and the vertical surface is larger than the angle between the bevel on the inner end surface and the vertical surface, which is beneficial to the internal slider 2 The slide out is fixed and reduces the possibility of reverse displacement after sliding out.
如图16-18所示，上封盖3上、下端面设置有贯穿的滑块松弛孔32；上封盖3通过下端面上的固定圆柱杆31与融合器本体1上的固定圆柱孔128实现嵌合，并通过前端面卡扣33和后端面卡扣34卡住融合器本体1上的卡孔A126和卡孔B 127，以避免上封盖3滑移脱落的现象。As shown in Figures 16-18, the upper and lower end surfaces of the upper cover 3 are provided with penetrating slider relaxation holes 32; the upper cover 3 connects to the fixed cylindrical hole 128 on the fusion vessel body 1 through the fixed cylindrical rod 31 on the lower end surface. To achieve fitting, the front end surface buckle 33 and the rear end surface buckle 34 are used to catch the clamping holes A126 and B127 on the cage body 1 to prevent the upper cover 3 from slipping off.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention. scope.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310744071.1ACN116898642A (en) | 2023-06-21 | 2023-06-21 | Integrated lumbar fusion device with nail path |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310744071.1ACN116898642A (en) | 2023-06-21 | 2023-06-21 | Integrated lumbar fusion device with nail path |
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| CN116898642Atrue CN116898642A (en) | 2023-10-20 |
| Application Number | Title | Priority Date | Filing Date |
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| CN202310744071.1APendingCN116898642A (en) | 2023-06-21 | 2023-06-21 | Integrated lumbar fusion device with nail path |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120114233A (en)* | 2025-05-14 | 2025-06-10 | 北京爱康宜诚医疗器材有限公司 | Intervertebral fusion prosthesis and intervertebral fusion prosthesis components |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120114233A (en)* | 2025-05-14 | 2025-06-10 | 北京爱康宜诚医疗器材有限公司 | Intervertebral fusion prosthesis and intervertebral fusion prosthesis components |
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