技术领域technical field
本发明属于颈椎后路手术用导引性医疗器械，具体涉及为3D打印的颈椎侧块螺钉导向植入板。The invention belongs to a guiding medical device for posterior cervical surgery, in particular to a 3D-printed cervical lateral mass screw-guiding implant plate.
背景技术Background technique
目前临床上，针对患者的颈部疾病的后路手术治疗，经常考虑的术式包括颈椎后路“单开门”或“双开门”椎板扩大成形术或不同方式的减压手术。手术中，为保持颈椎运动节段的稳定和维持颈椎的生理前凸，通常在减压的同时加用颈椎侧块钉棒内固定系统的内固定，而连接金属棒用的侧块螺钉多在颈椎后路侧块上穿行，侧块螺钉的进钉方向及角度是有严格要求的，进钉方向的不准确可能对患者造成不可恢复的创伤，因此对侧块螺钉进钉方向和深度的掌握是非常关键的，对医生技术的要求也非常高，急需要一种辅助器械来辅助医生继续侧块螺钉进钉，以达到减小手术风险的目的。At present, clinically, for the posterior surgical treatment of patients with neck diseases, the surgical methods that are often considered include posterior cervical "single-door" or "double-door" laminoplasty or different methods of decompression surgery. During the operation, in order to maintain the stability of the cervical motion segment and maintain the physiological lordosis of the cervical spine, the internal fixation of the cervical lateral mass screw rod internal fixation system is usually added at the same time of decompression, and the lateral mass screw used to connect the metal rod is mostly in the When traveling on the lateral mass in the posterior cervical spine, there are strict requirements on the screw insertion direction and angle of the lateral mass screw. Inaccurate screw insertion direction may cause irreversible trauma to the patient. It is very critical, and the requirements for doctors' skills are also very high. There is an urgent need for an auxiliary device to assist the doctor to continue the lateral mass screw insertion, so as to reduce the surgical risk.
目前随着3D打印技术的进步，在医学领域，人们尝试将反向工程与3D打印技术相结合的方式，利用CT或核磁共振(MRI)等设备采集人体器官、骨骼、关节等部位的外形数据，重建三维数字化模型，然后用3D打印方式制造教学和手术参考用的模型，常用于帮助制造假肢或进行外科修复，因与器官、骨骼、关节等部位的吻合性高而使应用领域不断增加。目前存在利用此种方式制备胸腰椎椎弓根螺钉导向模板还不算普及，但还未发现利用此技术进行颈椎侧块螺钉进钉导向的器械。而且现有技术存在用于椎弓根螺钉进钉导向的装置的导航模板结构不规则且较薄，容易断裂，放置后无固定装置，给进钉的准确性造成影响。At present, with the advancement of 3D printing technology, in the medical field, people try to combine reverse engineering with 3D printing technology, using CT or nuclear magnetic resonance (MRI) and other equipment to collect shape data of human organs, bones, joints and other parts , reconstruct a three-dimensional digital model, and then use 3D printing to manufacture teaching and surgical reference models, which are often used to help manufacture prostheses or perform surgical repairs. Due to the high compatibility with organs, bones, joints and other parts, the application fields continue to increase. At present, it is not popular to use this method to prepare thoracolumbar pedicle screw guide templates, but there is no device that uses this technology to guide cervical lateral mass screws. Moreover, in the prior art, there is an irregular and thin navigation template structure for a device for guiding pedicle screw insertion, which is easy to break, and there is no fixing device after placement, which affects the accuracy of screw insertion.
而颈椎后路侧块螺钉固定导向器及螺钉固定方法专利，仅为含有1个定位孔的方形结构，且没有与椎板拟合使用不方便。在需要对连续多块颈椎侧块进行进钉固定时，现有技术还存在许多不合理的地方。因此需要一种应用3D打印技术制备的吻合性强的个体化侧块螺钉导向模板。However, the patent for screw fixation guide and screw fixation method of the posterior lateral mass of the cervical spine is only a square structure with one positioning hole, and it is inconvenient to use without fitting with the lamina. There are still many unreasonable places in the prior art when it is necessary to carry out screw fixation on multiple consecutive cervical lateral masses. Therefore, there is a need for an individualized lateral mass screw guide template prepared by 3D printing technology.
本发明针针对没有合理有效的颈椎侧块螺钉进钉导向的装置问题，提供一种结构合理，使用简单，可以很好为颈椎侧块螺钉进行导向，而且可以有效对1块至多块颈椎侧块进行进钉导向，可以实现对双侧或单侧颈椎侧块的进钉导向的医疗器械。Aiming at the problem that there is no reasonable and effective guiding device for cervical lateral mass screws, the present invention provides a device with reasonable structure and simple use, which can well guide cervical lateral mass screws and can effectively guide one or more cervical lateral mass screws. It is a medical device that guides the nails and can realize the nail-guiding of bilateral or unilateral cervical lateral masses.
发明内容Contents of the invention
为了克服现有的技术不能很好的对侧块螺钉进行进钉导向，不能对多块颈椎侧块进行导向的问题，本发明的目的是提供一种能解决上述问题的3D打印的颈(颈3-颈7)椎侧块螺钉导向植入板。In order to overcome the problem that the existing technology can not guide the lateral mass screws well and can not guide multiple cervical lateral masses, the purpose of the present invention is to provide a 3D printed neck (cervical) that can solve the above problems 3-Cervical 7) The lateral mass screw guides the implant plate.
本发明的目的通过以下技术方案实现：The object of the present invention is achieved through the following technical solutions:
一种3D打印的颈椎侧块螺钉导向植入板，包括一块或数块导板，一到数个设置于导板上的侧块螺钉导向钉道，所述导板上还设置一到数个棘突孔；所述导板上部为一平面，导板底部曲面与椎板反向一致；导板底部一侧延伸到侧块外侧，导板上部平面为底部平面的垂直增厚。侧块螺钉导向钉道方向与侧块螺钉进钉钉道方向一致，侧块螺钉导向钉道中轴线经过进钉钉道进钉点；多块导板间设置连接构件；棘突孔用于棘突的插入。侧块螺钉导向钉道为侧块螺钉提供进钉导向通道，可以使侧块螺钉准确进入侧块，防止发生侧块的断裂；导板上部的平面可以使手术操作更加容易。棘突插入棘突孔使植入板稳定性增加。A 3D-printed cervical lateral mass screw-guided implant plate, comprising one or several guide plates, one to several lateral mass screw guide tracks set on the guide plate, and one to several spinous process holes set on the guide plate The upper part of the guide plate is a plane, and the curved surface of the bottom of the guide plate is consistent with the reverse direction of the lamina; one side of the bottom of the guide plate extends to the outside of the side block, and the upper plane of the guide plate is the vertical thickening of the bottom plane. The direction of the guiding track of the lateral mass screw is consistent with the direction of the screwing track of the lateral mass screw. insert. The lateral mass screw guide channel provides a guide channel for the lateral mass screw to allow the lateral mass screw to accurately enter the lateral mass and prevent the fracture of the lateral mass; the upper plane of the guide plate can make the operation easier. The insertion of the spinous process into the spinous process hole increases the stability of the implant plate.
进一步，上述方案中所述的导板数目设置为一块或多块的方式，Further, the number of guide plates described in the above scheme is set in one or more ways,
导板数目为一块的技术方案为：The technical scheme in which the number of guide plates is one is:
进一步，所述导板可覆盖1-5块连续侧块(颈3-颈7)，可以实现对连续多块侧块同时进行手术的目的。Further, the guide plate can cover 1-5 consecutive lateral masses (neck 3-neck 7), which can achieve the purpose of simultaneously operating multiple consecutive lateral masses.
进一步，所述导板上设置与覆盖侧块数对应的侧块螺钉导向钉道及棘突孔。所述棘突孔设置在导板中央，设置1-5个棘突孔；所述侧块螺钉导向钉道设置在棘突孔两侧，设置1-5对侧块螺钉导向钉道，可实现对双侧多个侧块螺钉进行导向的目的。Further, the guide plate is provided with lateral mass screw guide tracks and spinous process holes corresponding to the number of covered lateral masses. The spinous process holes are set in the center of the guide plate, and 1-5 spinous process holes are set; the lateral mass screw guide tracks are set on both sides of the spinous process holes, and 1-5 pairs of lateral mass screw guide tracks are set, which can realize Multiple lateral mass screws on both sides for guiding purposes.
或者所述棘突孔设置在导板一侧，设置1-5个棘突孔；所述侧块螺钉导向钉道设置于棘突孔旁，设置1-5个侧块螺钉导向钉道，可实现单侧对侧块螺钉进行导向的目的。Or the spinous process hole is set on one side of the guide plate, and 1-5 spinous process holes are set; the lateral mass screw guide track is set next to the spinous process hole, and 1-5 lateral mass screw guide tracks are set, which can realize The purpose of guiding lateral mass screws unilaterally.
导板数目为多块时的技术方案为：The technical solution when the number of guide plates is multiple is:
进一步，所述导板数目设置1-5块，每个导板能覆盖一块侧块，每个导板上设置一个或一对侧块螺钉导向钉道与一个棘突孔，两导板间设置有起连接作用的连接构件。Further, the number of the guide plates is set to 1-5, and each guide plate can cover a side block, and each guide plate is provided with one or a pair of side block screw guide nail paths and a spinous process hole, and a connection function is provided between the two guide plates. connection components.
进一步，所述棘突孔位于每个导板中央，每个导板上设置1对所述侧块螺钉导向钉道，所述侧块螺钉导向钉道设置在棘突孔两侧；或者所述棘突孔位于每个导板一侧，每个导板上设置1个所述侧块螺钉导向钉道，所述侧块螺钉导向钉道设置于棘突孔旁。Further, the spinous process hole is located in the center of each guide plate, and each guide plate is provided with a pair of lateral mass screw guide tracks, and the lateral mass screw guide tracks are arranged on both sides of the spinous process hole; or the spinous process The holes are located on one side of each guide plate, and each guide plate is provided with one lateral mass screw guide channel, and the lateral mass screw guide channel is provided beside the spinous process hole.
进一步，所述连接构件用于连接两个相邻导板，连接构件可调节，使手术时更容易吻合各个椎板的位置。Further, the connecting member is used to connect two adjacent guide plates, and the connecting member can be adjusted to make it easier to anastomose the position of each vertebral plate during operation.
进一步，连接构件包括设置于导板上的连接孔及导板间的连接结构，连接结构为任意可以起到连接作用的材料，其中优选为软质的钢条或或尼龙绳，该设置可以调节导板间的远近，还可调节导板间的角度，手术时应用更加方便。Further, the connection member includes a connection hole arranged on the guide plate and a connection structure between the guide plates. The connection structure is any material that can play a connection role, and is preferably a soft steel bar or nylon rope. This setting can adjust the distance between the guide plates. The distance between the guide plates can also be adjusted, making it more convenient to use during surgery.
在上述一块导板与数块导板的设置方案基础上，进一步优化发明方案：On the basis of the above-mentioned setting scheme of one guide plate and several guide plates, the invention scheme is further optimized:
进一步，所述棘突孔形状与棘突形状拟合，棘突孔的内径与棘突的外径一致，棘突孔有效的套在棘突上。Further, the shape of the spinous process hole is fitted to the shape of the spinous process, the inner diameter of the spinous process hole is consistent with the outer diameter of the spinous process, and the spinous process hole is effectively set on the spinous process.
进一步，所述导板上部平面与底部曲面最高点的距离为2-5mm。Further, the distance between the upper plane of the guide plate and the highest point of the bottom curved surface is 2-5mm.
进一步，导板上还设置一到数个固定钉，固定钉因导板大小不同设置不同的数目，导板可覆盖一块颈椎侧块时设置2-4根固定钉，导板可覆盖2块或3块颈椎侧块时设置4-8根固定钉，固定钉设置在靠近侧块螺钉导向钉道的位置上，但不经过侧块螺钉导向钉道，及导板中间边缘位置。固定钉的设置可以有效保证导板在颈椎侧块上的吻合及稳定性。Furthermore, one to several fixing nails are set on the guide plate, and the number of fixing nails is different according to the size of the guide plate. When the guide plate can cover one cervical vertebral side mass, 2-4 fixing nails are set, and the guide plate can cover 2 or 3 cervical vertebra sides. Set 4-8 fixing nails during the block, and the fixing nails are set at the position close to the guiding nail track of the side mass screw, but not passing through the guiding nail track of the side mass screw and the middle edge of the guide plate. The setting of the fixing nail can effectively ensure the anastomosis and stability of the guide plate on the cervical lateral mass.
进一步，所述棘突孔位置设置有棘突固定夹，固定夹为弹性固定夹，可在使用时紧紧的夹住棘突，使导板与颈椎侧块更加贴合，稳定。Further, the spinous process hole is provided with a spinous process fixing clip, and the fixing clip is an elastic fixing clip, which can tightly clamp the spinous process during use, so that the guide plate and the cervical lateral mass are more fit and stable.
进一步，所述侧块螺钉导向钉道位置设有钉道卡扣，卡扣控制螺钉处于钉道的中心，并可调节不同尺寸的螺钉准确的通过侧块螺钉导向钉道。Further, the position of the guiding screw path of the lateral mass screw is provided with a screw track buckle, and the buckle control screw is located in the center of the screw track, and the screws of different sizes can be adjusted to accurately guide the screw track through the side mass screw.
本发明还公开了所述3D打印的颈椎侧块螺钉导向植入板的制备方法为，The invention also discloses the preparation method of the 3D printed cervical lateral mass screw-guided implant plate as follows:
步骤1：通过CT或核磁共振等扫描技术获取颈3—颈7运动节段的原始数据；Step 1: Obtain the original data of the C3-C7 motion segment through scanning techniques such as CT or MRI;
步骤2：利用三维重建软件，建立颈3—颈7运动节段的三维模型，并对颈3—颈7侧块进钉钉道的进钉点、进钉方向及棘突外径进行三维分析；Step 2: Use 3D reconstruction software to establish a 3D model of the C3-C7 motion segment, and conduct a 3D analysis of the screw entry point, screw entry direction, and spinous process outer diameter of the C3-C7 lateral mass. ;
步骤3：对侧块的三维模型、进钉钉道的进钉点及进钉方向进行反向拟合，形成一个与侧块吻合的拟合曲面，其上有侧块螺钉导向钉道口及棘突孔口；Step 3: Reversely fit the 3D model of the lateral mass, the screw entry point and the direction of the screw entry to form a fitting surface that matches the lateral mass. orifice;
步骤4：对曲面进行反向增厚，使各个点增厚到一个平面上，侧块螺钉导向钉道口沿进钉方向进行反向延伸，另一开口形成在平面上，棘突孔口沿棘突尺寸延伸，在平面上形成另一棘突孔口，建立颈3—颈7颈椎侧块螺钉导向植入板的三维模型；Step 4: Reversely thicken the curved surface, so that each point is thickened to a plane, and the side mass screw guides the nail path to extend in the opposite direction along the direction of the screw, and another opening is formed on the plane, and the spinous process opening is along the spine. The size of the protrusion is extended, another spinous process orifice is formed on the plane, and the three-dimensional model of the cervical lateral mass screw-guided implant plate of C3-C7 cervical vertebrae is established;
步骤5：将颈椎侧块螺钉导向植入板的三维模型数据导入三D打印机，装入打印材料，打印出导向植入板。Step 5: Import the 3D model data of the lateral mass screw guide implant plate into the 3D printer, load the printing materials, and print out the guide implant plate.
进一步，所述进钉钉道进钉点在侧块中点内上2-3mm,方向为：向上倾斜与上关节突关节面平行,向外倾斜25度,螺钉贯穿前后骨皮质,尖端位于关节突前面的上外侧(Magerl技术)。Further, the entry point of the screw path is 2-3mm above the midpoint of the lateral mass, and the direction is: tilt upward to be parallel to the articular surface of the superior articular facet, and tilt outward at 25 degrees, the screw penetrates the anterior and posterior bone cortex, and the tip is located at the joint Protruding anteriorly superolaterally (Magerl technique).
进一步，所述方法步骤3所述的拟合曲面在棘突处拟合至棘突底部。Further, the fitting curved surface described in step 3 of the method is fitted to the bottom of the spinous process at the spinous process.
进一步，所述方法步骤4各个点增厚到一个平面，使导板上部平面与底部曲面最高点的距离为2-5mm。Further, each point in step 4 of the method is thickened to a plane, so that the distance between the upper plane of the guide plate and the highest point of the bottom curved surface is 2-5 mm.
使用时，在手术开窗后或模拟手术时，将植入板放置在相应的颈椎侧块上，通过侧块螺钉导向钉道在颈椎侧块上钻孔，钻孔结束后取下颈椎侧块螺钉导向植入板，完成对装置的使用。When in use, place the implant plate on the corresponding cervical lateral mass after opening the surgical window or during simulated surgery, drill holes on the cervical lateral mass through the lateral mass screw guide, and remove the cervical lateral mass after drilling The screw guides the implant plate, completing the use of the device.
与现有技术相比，本发明的有益效果是：棘突孔的设置可以使导向植入板使用时与颈椎侧块拟合性更好，更稳定，而且拟合时不用拟合至棘突顶部，减少拟合难度；导板大小及不同数目侧块螺钉导向钉道的设置达到对不同数目及不同侧侧块螺钉的导向；导板上部平面的设置，使操作更加简单容易；固定钉及棘突固定夹的设置可使装置使用更加稳定；侧块螺钉导向钉道卡扣的设置可以有效保证进钉方向和深度(双皮质固定)的准确性；连接结构的设置使手术时更加方便调整，可以更快的给每个侧块拟合。Compared with the prior art, the beneficial effect of the present invention is: the setting of the spinous process hole can make the guide implant plate fit better and more stable with the cervical lateral mass when used, and it does not need to be fitted to the spinous process when fitting The top, reducing the difficulty of fitting; the size of the guide plate and the setting of the guiding screw path of different numbers of lateral mass screws can guide different numbers and different lateral mass screws; the setting of the upper plane of the guide plate makes the operation easier; The setting of the fixing clip can make the use of the device more stable; the setting of the lateral mass screw guide screw track buckle can effectively ensure the accuracy of the direction and depth of the screw (double cortex fixation); the setting of the connecting structure makes it more convenient to adjust during the operation, and can Faster fitting of each side block.
附图说明Description of drawings
图1为本发明实施例1结构示意图；Fig. 1 is the structural representation of embodiment 1 of the present invention;
图2本发明实施例2结构示意图；Fig. 2 structure schematic diagram of Embodiment 2 of the present invention;
图3本发明实施例3结构示意图；Fig. 3 is a schematic structural diagram of Embodiment 3 of the present invention;
图4本发明实施例4结构示意图；Figure 4 is a schematic structural view of Embodiment 4 of the present invention;
图5本发明实施例5结构示意图；Fig. 5 is a schematic structural diagram of Embodiment 5 of the present invention;
图6本发明实施例6结构示意图；Fig. 6 is a schematic structural diagram of Embodiment 6 of the present invention;
图中，1、导板；11、导板上部平面；12、导板底部曲面；2、侧块螺钉导向钉道；3、棘突孔；31、固定夹；4、固定钉；51、连接孔；52、软金属条。In the figure, 1, the guide plate; 11, the upper plane of the guide plate; 12, the curved surface of the bottom of the guide plate; 2, the guiding nail path of the side mass screw; 3, the spinous process hole; 31, the fixing clip; 4, the fixing nail; 51, the connecting hole; 52 , Soft metal strips.
具体实施方式detailed description
实施例1 3D打印的颈椎侧块螺钉导向植入板结构Example 1 3D printed cervical lateral mass screw-guided implant plate structure
一种3D打印的颈椎侧块螺钉导向植入板，包括一实体导板1，导板1大小可覆盖1个颈椎侧块；1个设置于导板1上的侧块螺钉导向钉道2，导板1上还设置1个棘突孔3；棘突孔3位于导板1一侧，侧块螺钉导向钉道2设置于棘突孔3旁，侧块螺钉导向钉道2方向与侧块螺钉进钉钉道方向一致，通过侧块螺钉导向钉道2，螺钉可以准确进入侧块。导板1上部为一平面11，导板1底部曲面12与手术椎板反向一致；导板1底部曲面12一侧至侧块外侧，一侧至棘突的另一侧，导板底部曲面垂直增厚至导板上部平面。棘突孔3形状与棘突形状一致，棘突孔3的内径与棘突的外径移一致，棘突孔3可有效的套在棘突上。导板1上部平面11与底部曲面12最高点的距离为3mm。导板1的材料为医用树脂。A 3D printed cervical lateral mass screw-guided implant plate, including a solid guide plate 1, the size of which can cover a cervical lateral mass; There is also a spinous process hole 3; the spinous process hole 3 is located on the side of the guide plate 1, and the lateral mass screw guide channel 2 is set beside the spinous process hole 3, and the direction of the lateral mass screw guide channel 2 is in line with the lateral mass screw entry channel. The direction is the same, and the screw can be accurately entered into the lateral mass through the guide channel 2 of the lateral mass screw. The upper part of the guide plate 1 is a flat surface 11, and the curved surface 12 at the bottom of the guide plate 1 is consistent with the opposite direction of the surgical lamina; one side of the bottom curved surface 12 of the guide plate 1 extends to the outside of the side mass, and one side extends to the other side of the spinous process, and the curved surface of the bottom of the guide plate is vertically thickened to The upper plane of the guide plate. The shape of the spinous process hole 3 is consistent with that of the spinous process, the inner diameter of the spinous process hole 3 is consistent with the outer diameter of the spinous process, and the spinous process hole 3 can be effectively set on the spinous process. The distance between the upper plane 11 of the guide plate 1 and the highest point of the bottom curved surface 12 is 3mm. The material of the guide plate 1 is medical resin.
使用时，在手术开窗后或模拟手术时，将导向板放置在相应的颈3--颈7侧块上，通过侧块螺钉导向钉道2在颈椎侧块上钻孔，钻孔结束后取下颈椎侧块螺钉导向植入板，完成对装置的使用。When in use, place the guide plate on the corresponding cervical 3--cervical 7 lateral mass after opening the surgical window or during simulated surgery, and drill holes on the cervical lateral mass through the lateral mass screw guide channel 2. Remove the cervical lateral mass screw-guided implant plate to complete use of the device.
实施例2 3D打印的颈椎侧块螺钉导向植入板结构Example 2 3D printed cervical lateral mass screw-guided implant plate structure
一种3D打印的颈椎侧块螺钉导向植入板，包括一实体导板1，导板1大小可覆盖1个颈椎侧块；2个设置于导板1上的侧块螺钉导向钉道2，导板1上还设置1个棘突孔3；棘突孔3位于导板1中央，2个侧块螺钉导向钉道2设置在棘突孔3两侧，侧块螺钉导向钉道2方向与侧块螺钉进钉钉道方向一致，通过侧块螺钉导向钉道2，螺钉可以准确进入侧块。导板1上部为一平面11，导板1底部曲面12可与手术椎板反向一致；导板1底部曲面12延伸至两侧侧块外侧，导板底部曲面垂直增厚至导板上部平面。棘突孔3形状与棘突形状一致，棘突孔3的内径与棘突的外径移一致，棘突孔3有效的套在棘突上。导板1上部平面11与底部曲面12最高点的距离为4mm。导板1上还设置4个固定钉4，2个设置在靠近侧块螺钉导向钉道2的位置上，2个导板1中间边缘位置。固定钉4的设置可以有效保证导板1在颈椎侧块上吻合及稳定性。导板1的材料为医用树脂。A 3D-printed cervical lateral mass screw-guided implant plate, including a solid guide plate 1, the size of which can cover a cervical lateral mass; There is also a spinous process hole 3; the spinous process hole 3 is located in the center of the guide plate 1, and two lateral mass screw guide channels 2 are set on both sides of the spinous process hole 3, and the direction of the lateral mass screw guide channel 2 is the same as that of the lateral mass screw. The direction of the screw track is consistent, and the screw can be accurately entered into the lateral mass by guiding the screw track 2 through the lateral mass. The upper part of the guide plate 1 is a plane 11, and the bottom curved surface 12 of the guide plate 1 can be consistent with the operation lamina; the bottom curved surface 12 of the guide plate 1 extends to the outside of the side blocks on both sides, and the bottom curved surface of the guide plate is vertically thickened to the upper plane of the guide plate. The shape of the spinous process hole 3 is consistent with that of the spinous process, the inner diameter of the spinous process hole 3 is consistent with the outer diameter of the spinous process, and the spinous process hole 3 is effectively set on the spinous process. The distance between the upper plane 11 of the guide plate 1 and the highest point of the bottom curved surface 12 is 4 mm. Four fixing nails 4 are also arranged on the guide plate 1, two of which are arranged on the position close to the guide nail path 2 of the side mass screw, and two of them are located at the middle edge of the guide plate 1. The setting of the fixing nail 4 can effectively ensure the anastomosis and stability of the guide plate 1 on the lateral mass of the cervical vertebrae. The material of the guide plate 1 is medical resin.
使用时，在手术减压后或模拟手术时，将植入板放置在相应的颈3--颈7侧块上，通过侧块螺钉导向钉道2在颈椎侧块上钻孔，钻孔结束后取下颈椎侧块螺钉导向植入板，完成对装置的使用。When in use, after surgical decompression or simulated surgery, place the implant plate on the corresponding C3--C7 lateral mass, drill holes on the cervical lateral mass through the lateral mass screw guide channel 2, and the drilling is completed Afterwards, the cervical lateral mass screw-guided implant plate was removed to complete the use of the device.
实施例3 3D打印的颈椎侧块螺钉导向植入板结构Example 3 3D printed cervical lateral mass screw-guided implant plate structure
一种3D打印的颈椎侧块螺钉导向植入板，包括一实体导板1，导板1大小可覆盖三个颈椎侧块；3个设置于导板1上的侧块螺钉导向钉道2，导板1上还设置3个棘突孔3；棘突孔3位于导板1一侧，侧块螺钉导向钉道2设置于导板1的另一侧，侧块螺钉导向钉道2方向与侧块螺钉进钉钉道方向一致，通过侧块螺钉导向钉道2，螺钉可以准确进入侧块。导板1上部为一平面11，导板1底部曲面12与手术椎板反向一致；导板1底部曲面12一侧至侧块外侧，一侧至棘突的另一侧，导板底部曲面垂直增厚至导板上部平面。棘突孔3形状分别与相应棘突形状一致，棘突孔3的内径与棘突的外径移一致，棘突孔3可有效的套在棘突上。导板1上部平面11与底部曲面12最高点的距离为3mm。导板1的材料为医用树脂。导板1上还设置6个固定钉4，3个设置在靠近相应侧块螺钉导向钉道2的位置上，3个设置在相应的棘突孔3旁。固定钉4的设置可以有效保证导板1在颈椎侧块上吻合及稳定性。每个棘突孔3位置设置有棘突固定夹31，固定夹31为弹性固定夹31，可在使用时紧紧的夹住棘突，使导板1与颈椎侧块更加贴合，稳定。A 3D-printed cervical lateral mass screw-guided implant plate, including a solid guide plate 1, the size of which can cover three cervical vertebral lateral masses; There are also three spinous process holes 3; the spinous process holes 3 are located on one side of the guide plate 1, and the side mass screw guide channel 2 is set on the other side of the guide plate 1, and the direction of the side mass screw guide track 2 is aligned with the direction of the side mass screw. The direction of the track is consistent, and the screw can be accurately entered into the lateral mass by guiding the screw track 2 through the lateral mass screw. The upper part of the guide plate 1 is a flat surface 11, and the curved surface 12 at the bottom of the guide plate 1 is consistent with the opposite direction of the surgical lamina; one side of the bottom curved surface 12 of the guide plate 1 extends to the outside of the side mass, and one side extends to the other side of the spinous process, and the curved surface of the bottom of the guide plate is vertically thickened to The upper plane of the guide plate. The shape of the spinous process hole 3 is consistent with that of the corresponding spinous process, the inner diameter of the spinous process hole 3 is consistent with the outer diameter of the spinous process, and the spinous process hole 3 can be effectively set on the spinous process. The distance between the upper plane 11 of the guide plate 1 and the highest point of the bottom curved surface 12 is 3 mm. The material of the guide plate 1 is medical resin. Six fixing nails 4 are also arranged on the guide plate 1, three of which are arranged near the corresponding lateral mass screw guide nail track 2, and three of which are arranged beside the corresponding spinous process hole 3. The setting of the fixing nail 4 can effectively ensure the anastomosis and stability of the guide plate 1 on the lateral mass of the cervical vertebrae. Each spinous process hole 3 is provided with a spinous process fixing clip 31, the fixing clip 31 is an elastic fixing clip 31, which can tightly clamp the spinous process during use, so that the guide plate 1 and the cervical vertebral side mass are more fit and stable.
使用时，在手术开窗后或模拟手术时，将植入板放置在相应的颈椎侧块上，通过侧块螺钉导向钉道2在颈椎侧块上钻孔，钻孔结束后取下颈椎侧块螺钉导向植入板，完成对装置的使用。When in use, place the implant plate on the corresponding cervical lateral mass after opening the surgical window or during simulated surgery, drill holes on the cervical lateral mass through the lateral mass screw guide channel 2, and remove the cervical lateral mass after drilling. A screw-guided implant plate completes the use of the device.
实施例4 3D打印的颈椎侧块螺钉导向植入板结构Example 4 3D printed cervical lateral mass screw-guided implant plate structure
一种3D打印的颈椎侧块螺钉导向植入板，包括一实体导板1，导板1大小可覆盖3个颈椎侧块；6个设置于导板1上的侧块螺钉导向钉道2，导板1上还设置3个棘突孔3；棘突孔3位于导板1中央，6个侧块螺钉导向钉道2设置在棘突孔3两侧，侧块螺钉导向钉道2方向与侧块螺钉进钉钉道方向一致，通过侧块螺钉导向钉道2，螺钉可以准确进入侧块。导板1上部为一平面11，导板1底部曲面12可与手术椎板反向一致；导板1底部曲面12延伸至两侧侧块外侧，导板底部曲面垂直增厚至导板上部平面。棘突孔3形状与棘突形状一致，棘突孔3的内径与棘突的外径移一致，棘突孔3有效的套在棘突上。导板1上部平面11与底部曲面12最高点的距离为4mm。导板1上还设置8个固定钉4，6个设置在靠近相应侧块螺钉导向钉道2的位置上，2个导板1中间边缘位置。固定钉4的设置可以有效保证导板1在颈椎侧块上吻合及稳定性。棘突孔3位置设置有棘突固定夹31，固定夹31为弹性固定夹31，可在使用时紧紧的夹住棘突，使导板1与颈椎侧块更加贴合，稳定。侧块螺钉导向钉道2位置设有侧块螺钉导向钉道2卡扣，卡扣控制螺钉处于钉道的中心，并可调节不同尺寸的螺钉准确的通过侧块螺钉导向钉道2。导板1的材料为医用树脂。A 3D printed cervical lateral mass screw-guided implant plate, including a solid guide plate 1, the size of which can cover 3 cervical lateral mass; Three spinous process holes 3 are also set; the spinous process hole 3 is located in the center of the guide plate 1, and the six lateral mass screw guide channels 2 are set on both sides of the spinous process hole 3, and the direction of the lateral mass screw guide channel 2 is the same as that of the lateral mass screw. The direction of the screw track is consistent, and the screw can be accurately entered into the lateral mass by guiding the screw track 2 through the lateral mass. The upper part of the guide plate 1 is a plane 11, and the bottom curved surface 12 of the guide plate 1 can be consistent with the operation lamina; the bottom curved surface 12 of the guide plate 1 extends to the outside of the side blocks on both sides, and the bottom curved surface of the guide plate is vertically thickened to the upper plane of the guide plate. The shape of the spinous process hole 3 is consistent with that of the spinous process, the inner diameter of the spinous process hole 3 is consistent with the outer diameter of the spinous process, and the spinous process hole 3 is effectively set on the spinous process. The distance between the upper plane 11 of the guide plate 1 and the highest point of the bottom curved surface 12 is 4 mm. There are also 8 fixing nails 4 arranged on the guide plate 1, 6 of which are arranged on the position close to the guide nail path 2 of the corresponding side mass screw, and 2 are located at the middle edge of the guide plate 1. The setting of the fixing nail 4 can effectively ensure the anastomosis and stability of the guide plate 1 on the lateral mass of the cervical vertebrae. The spinous process hole 3 is provided with a spinous process fixing clip 31. The fixing clip 31 is an elastic fixing clip 31, which can tightly clamp the spinous process during use, so that the guide plate 1 and the cervical vertebral side mass are more fit and stable. The side mass screw guide track 2 is provided with a buckle on the side mass screw guide track 2, and the buckle control screw is in the center of the screw track, and the screws of different sizes can be adjusted to pass through the side mass screw guide track 2 accurately. The material of the guide plate 1 is medical resin.
使用时，在手术开窗后或模拟手术时，将植入板放置在相应的颈椎侧块上，通过侧块螺钉导向钉道2在颈椎侧块上钻孔，钻孔结束后取下颈椎侧块螺钉导向植入板，完成对装置的使用。When in use, place the implant plate on the corresponding cervical lateral mass after opening the surgical window or during simulated surgery, drill holes on the cervical lateral mass through the lateral mass screw guide channel 2, and remove the cervical lateral mass after drilling. A screw-guided implant plate completes the use of the device.
实施例5 3D打印的颈椎侧块螺钉导向植入板结构Example 5 3D printed cervical lateral mass screw-guided implant plate structure
一种3D打印的颈椎侧块螺钉导向植入板，包括5块导板1，每个导板1上设置一个棘突孔3与一个侧块螺钉导向钉道2，棘突孔3位于导板1一侧，侧块螺钉导向钉道2设置于棘突孔3旁，侧块螺钉导向钉道2方向与侧块螺钉进钉钉道方向一致，通过侧块螺钉导向钉道2，螺钉可以准确进入侧块。导板侧面设置有连接孔，连接孔内设置连接软金属条；导板1上部为一平面11，导板1底部曲面12可与手术椎板反向拟合；导板1底部曲面12一侧延伸至侧块外侧，一侧延伸至棘突旁，导板1上部平面11一侧延伸至侧块螺钉导向钉道2在上部平面11出口处后，再向外延伸4mm，另一侧延伸至棘突旁。棘突孔3形状与棘突形状一致，棘突孔3的内径与棘突的外径移一致，棘突孔3有效的套在棘突上。导板1上部平面11与底部曲面12最高点的距离为4mm。每个导板1上设置2个固定钉，一个设置在靠近相应侧块螺钉导向钉道2的位置上，一个设置在棘突孔旁边。固定钉的设置可以有效保证导板1在颈椎侧块上吻合及稳定性。棘突孔3位置设置有棘突固定夹，固定夹为弹性固定夹，可在使用时紧紧的夹住棘突，使导板1与颈椎侧块更加贴合，稳定。侧块螺钉导向钉道2位置设有侧块螺钉导向钉道2卡扣，卡扣控制螺钉处于钉道的中心，并可调节不同尺寸的螺钉准确的通过侧块螺钉导向钉道2。导板1的材料为医用树脂。A 3D-printed cervical lateral mass screw-guided implant plate, including five guide plates 1, each guide plate 1 is provided with a spinous process hole 3 and a lateral mass screw guide track 2, and the spinous process hole 3 is located on the side of the guide plate 1 , the lateral mass screw guide track 2 is set beside the spinous process hole 3, the direction of the lateral mass screw guide track 2 is consistent with the direction of the lateral mass screw screw entry track, through the lateral mass screw guide track 2, the screw can accurately enter the lateral mass . There are connection holes on the side of the guide plate, and soft metal strips are arranged in the connection holes; the upper part of the guide plate 1 is a plane 11, and the curved surface 12 at the bottom of the guide plate 1 can be fitted in reverse with the surgical lamina; one side of the curved surface 12 at the bottom of the guide plate 1 extends to the side block On the outside, one side extends to the side of the spinous process, one side of the upper plane 11 of the guide plate 1 extends to the exit of the lateral mass screw guide track 2 at the exit of the upper plane 11, and then extends outward for 4 mm, and the other side extends to the side of the spinous process. The shape of the spinous process hole 3 is consistent with that of the spinous process, the inner diameter of the spinous process hole 3 is consistent with the outer diameter of the spinous process, and the spinous process hole 3 is effectively set on the spinous process. The distance between the upper plane 11 of the guide plate 1 and the highest point of the bottom curved surface 12 is 4 mm. Two fixing nails are arranged on each guide plate 1 , one is arranged at a position close to the guide nail channel 2 of the corresponding lateral mass screw, and the other is arranged beside the spinous process hole. The setting of the fixing nail can effectively ensure the anastomosis and stability of the guide plate 1 on the lateral mass of the cervical vertebrae. The spinous process hole 3 is provided with a spinous process fixing clip, and the fixing clip is an elastic fixing clip, which can tightly clamp the spinous process during use, so that the guide plate 1 and the lateral mass of the cervical spine are more fit and stable. The side mass screw guide track 2 is provided with a buckle on the side mass screw guide track 2, and the buckle control screw is in the center of the screw track, and the screws of different sizes can be adjusted to pass through the side mass screw guide track 2 accurately. The material of the guide plate 1 is medical resin.
使用时，在手术开窗后或模拟手术时，将植入板放置在相应的颈椎侧块上，通过侧块螺钉导向钉道2在颈椎侧块上钻孔，钻孔结束后取下颈椎侧块螺钉导向植入板，完成对装置的使用。When in use, place the implant plate on the corresponding cervical lateral mass after opening the surgical window or during simulated surgery, drill holes on the cervical lateral mass through the lateral mass screw guide channel 2, and remove the cervical lateral mass after drilling. A screw-guided implant plate completes the use of the device.
实施例6 3D打印的颈椎侧块螺钉导向植入板结构Example 6 3D printed cervical lateral mass screw-guided implant plate structure
一种3D打印的颈椎侧块螺钉导向植入板，包括5块导板1，每个导板1上设置一个棘突孔3与一对侧块螺钉导向钉道2，棘突孔3位于导板1中央，侧块螺钉导向钉道2设置在棘突孔3两侧，侧块螺钉导向钉道2方向与侧块螺钉进钉钉道方向一致，通过侧块螺钉导向钉道2，螺钉可以准确进入侧块。导板侧面设置有连接孔，连接孔内设置连接软金属条；导板1上部为一平面11，导板1底部曲面12可与手术椎板反向拟合；导板1底部曲面12延伸至两侧侧块外侧，导板1上部平面11延伸至两侧侧块螺钉导向钉道2在上部平面11出口处后，再向外延伸4mm。棘突孔3形状与棘突形状一致，棘突孔3的内径与棘突的外径移一致，棘突孔3有效的套在棘突上。导板1上部平面11与底部曲面12最高点的距离为4mm。导板1上还设置8个固定钉4，6个设置在靠近相应侧块螺钉导向钉道2的位置上，2个导板1中间边缘位置。固定钉4的设置可以有效保证导板1在颈椎侧块上吻合及稳定性。棘突孔3位置设置有棘突固定夹31，固定夹31为弹性固定夹31，可在使用时紧紧的夹住棘突，使导板1与颈椎侧块更加贴合，稳定。侧块螺钉导向钉道2位置设有侧块螺钉导向钉道2卡扣，卡扣控制螺钉处于钉道的中心，并可调节不同尺寸的螺钉准确的通过侧块螺钉导向钉道2。导板1的材料为医用树脂。A 3D-printed cervical lateral mass screw-guided implant plate, including five guide plates 1, each guide plate 1 is provided with a spinous process hole 3 and a pair of lateral mass screw guide channels 2, and the spinous process hole 3 is located in the center of the guide plate 1 , the lateral mass screw guide track 2 is set on both sides of the spinous process hole 3, the direction of the lateral mass screw guide track 2 is consistent with the direction of the lateral mass screw screw entry track, through the lateral mass screw guide track 2, the screw can accurately enter the side piece. There are connection holes on the side of the guide plate, and soft metal strips are arranged in the connection holes; the upper part of the guide plate 1 is a plane 11, and the curved surface 12 at the bottom of the guide plate 1 can be fitted in reverse with the surgical lamina; the curved surface 12 at the bottom of the guide plate 1 extends to the side blocks on both sides Outer side, the upper plane 11 of the guide plate 1 extends to the exit of the upper plane 11 after the guide nail channel 2 of the lateral mass screws on both sides, and then extends outward by 4 mm. The shape of the spinous process hole 3 is consistent with that of the spinous process, the inner diameter of the spinous process hole 3 is consistent with the outer diameter of the spinous process, and the spinous process hole 3 is effectively set on the spinous process. The distance between the upper plane 11 of the guide plate 1 and the highest point of the bottom curved surface 12 is 4mm. There are also 8 fixing nails 4 arranged on the guide plate 1, 6 of which are arranged on the position close to the guide nail path 2 of the corresponding side mass screw, and 2 are located at the middle edge of the guide plate 1. The setting of the fixing nail 4 can effectively ensure the anastomosis and stability of the guide plate 1 on the lateral mass of the cervical vertebrae. The spinous process hole 3 is provided with a spinous process fixing clip 31. The fixing clip 31 is an elastic fixing clip 31, which can tightly clamp the spinous process during use, so that the guide plate 1 and the cervical vertebral side mass are more fit and stable. The side mass screw guide track 2 is provided with a buckle on the side mass screw guide track 2, and the buckle control screw is in the center of the screw track, and the screws of different sizes can be adjusted to pass through the side mass screw guide track 2 accurately. The material of the guide plate 1 is medical resin.
使用时，在手术开窗后或模拟手术时，将植入板放置在相应的颈椎侧块上，通过侧块螺钉导向钉道2在颈椎侧块上钻孔，钻孔结束后取下颈椎侧块螺钉导向植入板，完成对装置的使用。When in use, place the implant plate on the corresponding cervical lateral mass after opening the surgical window or during simulated surgery, drill holes on the cervical lateral mass through the lateral mass screw guide channel 2, and remove the cervical lateral mass after drilling. A screw-guided implant plate completes the use of the device.
实施例7 3D打印的颈椎侧块螺钉导向植入板的制备方法Example 7 Preparation method of 3D printed cervical lateral mass screw-guided implant plate
3D打印的颈椎侧块螺钉导向植入板的制备方法为，The preparation method of the 3D printed cervical lateral mass screw-guided implant plate is as follows:
步骤1：通过CT或核磁共振等扫描技术获取患者颈3—颈7运动节段的原始数据；Step 1: Obtain the original data of the patient's C3-C7 motion segment through scanning techniques such as CT or MRI;
步骤2：利用三维重建软件，建立颈椎颈3—颈7侧块的三维模型，并对侧块的进钉钉道及棘突外径进行三维分析；Step 2: Using 3D reconstruction software, establish a 3D model of the cervical 3-7 lateral mass, and conduct a 3D analysis of the screw path and spinous process outer diameter of the lateral mass;
步骤3：对颈椎侧块的三维模型及进钉钉道进行反向拟合，形成一个与颈3—颈7颈椎侧块及椎板吻合的拟合曲面12，其上有侧块螺钉导向钉道2口及棘突孔3口；拟合曲面12在棘突处拟合至棘突底部。Step 3: Reversely fit the 3D model of the cervical lateral mass and the screw path to form a fitting surface 12 that fits the cervical lateral mass and lamina of C3-C7, on which there are lateral mass screw guide screws There are 2 openings of the channel and 3 openings of the spinous process hole; the fitting curved surface 12 is fitted to the bottom of the spinous process at the spinous process.
步骤4：对曲面12进行反向增厚，使各个点增厚到一个平面11上，进钉钉道反向延伸，另一开口形成在平面11上，棘突孔3口沿棘突尺寸延伸在导向板上形成棘突孔3，建立颈椎侧块螺钉导向植入板的三维模型；各点增厚的平面11距离曲面12最高点为2-5mm。Step 4: Reversely thicken the curved surface 12, so that each point is thickened to a plane 11, the nail path extends in the opposite direction, another opening is formed on the plane 11, and the opening of the spinous process hole 3 extends along the size of the spinous process Spinous process holes 3 are formed on the guide plate, and a three-dimensional model of the cervical lateral mass screw-guided implant plate is established; the distance between the thickened plane 11 and the highest point of the curved surface 12 at each point is 2-5 mm.
步骤5：将颈椎侧块螺钉导向植入板的三维模型数据导入三D打印机，装入打印材料，打印出颈椎侧块螺钉导向植入板。Step 5: Import the 3D model data of the cervical lateral mass screw-guided implant plate into the 3D printer, load the printing materials, and print out the cervical lateral mass screw-guided implant plate.
打印出的颈椎侧块螺钉导向植入板共手术或模拟手术时使用。The printed cervical lateral mass screw-guided implant plate is used during surgery or simulated surgery.
上述实施例的说明只是用于理解本发明。应当指出，对于本领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进，这些改进也将落入本发明权利要求的保护范围内。The above descriptions of the embodiments are only for the understanding of the present invention. It should be pointed out that those skilled in the art can make some improvements to the present invention without departing from the principles of the present invention, and these improvements will also fall within the protection scope of the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149005.5ACN104688323B (en) | 2015-03-31 | 2015-03-31 | 3D printed cervical lateral mass screw-guided implant plate and its preparation method |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149005.5ACN104688323B (en) | 2015-03-31 | 2015-03-31 | 3D printed cervical lateral mass screw-guided implant plate and its preparation method |
| Publication Number | Publication Date |
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| CN104688323A CN104688323A (en) | 2015-06-10 |
| CN104688323Btrue CN104688323B (en) | 2017-01-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149005.5AActiveCN104688323B (en) | 2015-03-31 | 2015-03-31 | 3D printed cervical lateral mass screw-guided implant plate and its preparation method |
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| TR01 | Transfer of patent right | Effective date of registration:20241202 Address after:Building 5, Courtyard 8, Liangshuihe Second Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing 102600 Patentee after:Beijing Changmugu Medical Technology Co.,Ltd. Country or region after:China Address before:100050 Yongan Road, Xicheng District, Xicheng District, Beijing Patentee before:BEIJING FRIENDSHIP HOSPITAL, CAPITAL MEDICAL University Country or region before:China |