技术领域technical field
本发明属于医疗器械技术领域，具体涉及一种采用内置物法修复胸腰椎骨折部位的专用工具。The invention belongs to the technical field of medical devices, and in particular relates to a special tool for repairing thoracolumbar fractures by adopting the built-in method.
背景技术Background technique
胸腰椎压缩性骨折是脊柱外科多发性损伤，对胸腰椎压缩性骨折的认识和治疗一直存在争议。对于神经功能正常的不稳定性胸腰椎压缩性骨折，大部分学者建议行胸腰椎后路开放复位并结合椎弓根螺钉内固定，从而尽可能恢复脊柱正常序列及重建脊柱稳定。随着此类手术的大量开展，有学者发现损伤椎体术后随访过程中出现椎弓根钉松动、断钉、椎体复位不理想、术后取出内固定椎体矫正角度丢失等情况。出现上述并发症的主要原因是应用该系统复位固定后，椎体内出现空壳样改变，前中柱支撑作用丢失，应力过度集中于钉棒内固定系统，导致载荷分布不合理。为防止后路钉棒内固定失败，目前常采用的措施有：后外侧植骨融合、经椎弓根伤椎内植骨、骨水泥伤椎成形术、经伤椎椎弓根螺钉固定术及Pillar“支柱块”置入。后外侧植骨不能重建伤椎前中柱，起不到及时的力学支撑作用，不能有效防止后路钉棒系统固定失败。经椎弓根伤椎内植骨，不具有前中柱力学支撑作用，难以降低内固定失败和矫正角度丢失的发生率，而且存在植骨纤维化、植骨不愈合等问题。临床采用的后路钉棒系统内固定同时行骨水泥伤椎成形术，重建伤椎高度及前中柱支撑功能的方法，由于骨水泥渗漏率较高，易导致肺栓塞及神经根、脊髓损伤，而且骨水泥的弹性模量远远大于椎体内的松质骨，大大增加了相邻椎体骨折的概率。经伤椎椎弓根螺钉固定可减少内固定失败率，可能与螺钉重建伤椎部分支撑功能有关，但仍不是伤椎重建的有效方法。Thoracolumbar compression fractures are multiple injuries in spinal surgery. The understanding and treatment of thoracolumbar compression fractures have always been controversial. For unstable thoracolumbar compression fractures with normal neurological function, most scholars recommend open reduction through the posterior approach of the thoracolumbar spine combined with internal fixation with pedicle screws, so as to restore the normal sequence of the spine and restore spinal stability as much as possible. With the development of a large number of such operations, some scholars have found that pedicle screw loosening, broken nails, unsatisfactory vertebral body reduction, and loss of corrected angle of vertebral body after removal of internal fixation occurred during follow-up of injured vertebral bodies. The main reason for the above-mentioned complications is that after reduction and fixation with this system, there are shell-like changes in the vertebral body, the supporting function of the anterior and middle columns is lost, and the stress is excessively concentrated on the screw-rod internal fixation system, resulting in unreasonable load distribution. In order to prevent the failure of posterior screw fixation, currently commonly used measures include: posterolateral bone graft fusion, transpedicular bone grafting in injured vertebra, bone cement injured vertebroplasty, transpedicular pedicle screw fixation and Pillar "pillar block" placement. The posterolateral bone graft cannot reconstruct the anterior and middle column of the injured vertebra, cannot provide timely mechanical support, and cannot effectively prevent the failure of posterior screw-rod system fixation. Internal bone grafting through pedicle injury does not have the mechanical support of the anterior and middle columns, and it is difficult to reduce the incidence of internal fixation failure and correction angle loss, and there are problems such as bone graft fibrosis and bone graft nonunion. The clinical method of internal fixation with posterior screw-rod system and bone cement injury vertebroplasty to reconstruct the height of the injured vertebra and the support function of the anterior and middle columns, due to the high leakage rate of bone cement, can easily lead to pulmonary embolism, nerve roots, and spinal cord. Injury, and the elastic modulus of bone cement is much larger than that of the cancellous bone in the vertebral body, which greatly increases the probability of adjacent vertebral fractures. Pedicle screw fixation through the injured vertebra can reduce the failure rate of internal fixation, which may be related to the reconstruction of part of the support function of the injured vertebra with screws, but it is still not an effective method for the reconstruction of the injured vertebra.
植入Pillar“支柱块”既可以克服传统后路钉棒系统复位后“空壳样”椎体这一缺点，又对伤椎本身畸形有不同程度的矫正作用。然而其平均直径较椎弓根大，植入过程中需用扩张器逐级扩张通道，术中发生椎弓根破裂的概率较高。一旦椎弓根内侧壁破裂，将对神经根造成损伤从而出现神经症状。且其撑开复位能力欠佳，对椎体前柱高度的复位作用有限。因此，寻找安全、有效的重建胸腰椎骨折患者伤椎前中柱的手术方法是目前治疗胸腰椎压缩性骨折的首要问题。The implantation of Pillar "pillar block" can not only overcome the disadvantage of "empty shell-like" vertebral body after the reduction of traditional posterior screw-rod system, but also have different degrees of corrective effect on the deformity of the injured vertebra itself. However, its average diameter is larger than that of the pedicle, and a dilator needs to be used to expand the channel step by step during the implantation process, and the probability of pedicle rupture during the operation is high. Once the medial wall of the pedicle ruptures, it will damage the nerve root and cause neurological symptoms. Moreover, its ability to expand and reduce is not good, and its effect on the reduction of the height of the anterior column of the vertebral body is limited. Therefore, finding a safe and effective surgical method to reconstruct the anterior and middle columns of injured vertebrae in patients with thoracolumbar fractures is the primary problem in the treatment of thoracolumbar compression fractures.
发明内容Contents of the invention
发明目的：本发明目的在于针对现有技术的不足，提供一种结构简单、手术效率高且创伤小、有益于伤口快速愈合的胸腰椎骨折修复手术的专用工具。Purpose of the invention: The purpose of the present invention is to address the deficiencies of the prior art and provide a special tool for thoracolumbar fracture repair surgery with simple structure, high operation efficiency, small trauma, and benefit for rapid wound healing.
技术方案：本发明所述的一种胸腰椎骨折修复手术的专用工具，包括修复轮廓固定组件和定型填充块，所述修复轮廓固定组件植入骨折部位形成修复目标轮廓，所述定型填充块置入所述修复轮廓固定组件内形成稳定的修复填充物。Technical solution: A special tool for thoracolumbar fracture repair surgery according to the present invention, including a repair contour fixation component and a shaped filler block, the repair contour fixation component is implanted into the fracture site to form a repair target contour, and the shaped filler block is placed into the repair contour fixation component to form a stable repair filler.
进一步地，为便于手术操作，所述修复轮廓固定组件与定型填充块通过键连接固定相对位置；所述修复轮廓固定组件包括至少一对上固定块和下固定块，所述上固定块底部开设第一键槽，所述下固定块顶部开设第二键槽，所述定型填充块的顶部和底部分别设有与所述键槽配合的第一键体，所述定型填充块上、下表面的第一键体分别插入上固定块和下固定块的键槽内固定上、下固定块以及定型填充块的相对位置。Further, in order to facilitate the operation, the relative position of the repair contour fixation assembly and the shaped filling block is fixed through key connection; the repair contour fixation assembly includes at least a pair of upper and lower fixation blocks, and the bottom of the upper fixation block is opened The first keyway, the top of the lower fixing block is provided with the second keyway, the top and bottom of the shaped filling block are respectively provided with the first key body matched with the keyway, the first key on the upper and lower surfaces of the shaped filling block The key bodies are respectively inserted into the key grooves of the upper and lower fixing blocks to fix the relative positions of the upper and lower fixing blocks and the shaped filling blocks.
进一步地，所述定型填充块的上、下表面还设有0～n个扩张垫块，所述扩张垫块上具有与所述上、下固定块上的第一、第二键槽配合的第二键体以及与所述定型填充块上第一键体配合的第三键槽。Further, the upper and lower surfaces of the shaped filling block are also provided with 0-n expansion pads, and the expansion pads have a first and second keyway matching the upper and lower fixing blocks. The second key body and the third key groove matched with the first key body on the shaped filling block.
进一步地，为尽量减小手术创伤面，便于内植物置入骨折部位，又防止内植物坍塌，所述上固定块与下固定块大小一致，尺寸为15～30mm*4～8mm*4～8mm；所述第一键槽与第二键槽的大小一致，截面为方形，长度为上固定块长度的0.7～0.85倍，宽度为上固定块宽度的0.4～0.6倍，深度为上固定块高度的0.3～0.6倍；所述定型填充块的尺寸为15～30mm*4～8mm*4～8mm；第一键体的尺寸与所述第一、第二键槽相配套；所述扩张垫块的长度与定型填充块一致，厚度为0.5～2mm，第二键体与第一、第二键槽相配套；第三键槽与第一键体相配套。Further, in order to minimize the surgical trauma surface, facilitate implant insertion into the fracture site, and prevent implant collapse, the size of the upper fixation block and the lower fixation block are the same, and the size is 15-30mm*4-8mm*4-8mm The size of the first keyway and the second keyway are consistent, the cross section is square, the length is 0.7 to 0.85 times the length of the upper fixed block, the width is 0.4 to 0.6 times the width of the upper fixed block, and the depth is 0.3 times the height of the upper fixed block ～0.6 times; the size of the shaped filling block is 15～30mm*4～8mm*4～8mm; the size of the first key body is matched with the first and second keyways; the length of the expansion pad is in accordance with The shaped filling blocks are consistent and have a thickness of 0.5-2mm. The second key body is matched with the first and second key grooves; the third key groove is matched with the first key body.
进一步地，为便于将定型填充块送入修复轮廓固定组件内部，所述定型填充块上设有推送接口。Further, in order to facilitate sending the shaped filling block into the repair contour fixing assembly, the shaped filling block is provided with a push interface.
进一步地，为便于将定型填充块送入修复轮廓固定组件内部，还包括推送器，所述推送器包括推送操作手柄、推杆和推送头，所述操作手柄和推送头分别固定于所述推杆两端，所述推送头与所述推送装置配合将定型填充块置入修复轮廓固定组件内。Further, in order to facilitate sending the shaped filling block into the repair contour fixing assembly, a pusher is also included, and the pusher includes a push operation handle, a push rod and a push head, and the operation handle and the push head are respectively fixed on the push At both ends of the rod, the pushing head cooperates with the pushing device to put the shaped filling block into the repair contour fixing component.
进一步地，所述推送头与推杆为可拆卸式连接方式，推送头损坏时仅需更换推送头，节降手术工具成本。Further, the push head and the push rod are detachably connected, and when the push head is damaged, only the push head needs to be replaced, which saves the cost of surgical tools.
进一步地，所述推送接口为螺纹孔，所述推送头上开设与所述螺纹孔配套的螺纹。Further, the pushing interface is a threaded hole, and the pushing head is provided with threads matching the threaded hole.
进一步地，为提高本工具的生物相容性，所述修复轮廓固定组件、定型填充块和扩张垫块均为多孔钽材质。Further, in order to improve the biocompatibility of the tool, the repair contour fixation component, shaped filling block and expansion spacer are all made of porous tantalum.
进一步地，为便于将修复轮廓固定组件固定在椎骨骨折部位，所述修复轮廓固定组件的外表面设有防滑条纹，防滑条纹有助于修复轮廓固定组件很好的嵌入在骨折部位骨质内，防止滑动导致的修复轮廓不稳定的状况。Further, in order to facilitate fixing the repair contour fixation component on the vertebral fracture site, the outer surface of the repair contour fixation component is provided with anti-slip stripes, which help the repair contour fixation component to be well embedded in the bone of the fracture site, Prevents slippage-induced instability of the repair profile.
有益效果：(1)本发明提供的专用工具结构简单，便于手术操作，可有效缩短手术时间，因本工具结构灵活度高，可根据骨折部位的具体情况选择置入块的尺寸，创伤面小、治疗后患者恢复快；(2)本工具可以根据实际状况选择扩张垫块的加入量，有效填补损伤椎体内的空腔，恢复伤椎高度，使骨折椎体复位满意，增加椎体的负载能力，提高骨折的愈合率；(3)本工具有助于重建损伤椎体的前、中柱，减少受损骨节矢状面内塌陷的发生，避免术后远期矫正角度的丢失；内置物弹性模量与正常骨节的弹性模量基本一致，保留了脊柱的运动节段，使得正常骨节与受损骨节之间保持力传递，刺激受损骨节的运动功能，加快痊愈；(4)本发明工具选用多孔钽材质，其在体内形成了惰性氧化涂层，使其能适应体内的各种酸碱环境，表现出良好的稳定性；多孔钽还可以促进细胞增殖，提高成骨细胞的造骨能力，且多孔钽弹性模量低，不易造成相邻椎体骨折。Beneficial effects: (1) The special tool provided by the present invention has a simple structure, is convenient for operation, and can effectively shorten the operation time. Because the tool has a high structural flexibility, the size of the inserted block can be selected according to the specific conditions of the fracture site, and the wound surface is small. , The patient recovers quickly after treatment; (2) This tool can choose the amount of expansion pads according to the actual situation, effectively fill the cavity in the injured vertebral body, restore the height of the injured vertebral body, make the fractured vertebral body reset satisfactorily, and increase the vertebral body. Load capacity, improve fracture healing rate; (3) This tool helps to rebuild the anterior and middle columns of the damaged vertebral body, reduce the occurrence of collapse in the sagittal plane of the damaged joints, and avoid the loss of long-term correction angle after surgery; built-in The elastic modulus of the body is basically the same as that of the normal joints, and the motion segment of the spine is preserved, so that the force transmission between the normal joints and the damaged joints is maintained, the motor function of the damaged joints is stimulated, and the recovery is accelerated; (4) this The invention tool is made of porous tantalum, which forms an inert oxidation coating in the body, so that it can adapt to various acid-base environments in the body and exhibit good stability; porous tantalum can also promote cell proliferation and improve osteoblast formation. Bone capacity, and the porous tantalum has a low elastic modulus, which is not easy to cause adjacent vertebral fractures.
附图说明Description of drawings
图1为修复轮廓固定组件的整体结构示意图；FIG. 1 is a schematic diagram of the overall structure of the repair contour fixing component;
图2为上固定块的结构侧视图；Fig. 2 is the structural side view of upper fixed block;
图3为上固定块的结构仰视图；Fig. 3 is the bottom view of the structure of the upper fixed block;
图4为定型填充块的正视图；Fig. 4 is the front view of shaped filling block;
图5为定型填充块的侧视图；Fig. 5 is the side view of shaped filling block;
图6为扩张垫块的正视图；Fig. 6 is the front view of expansion spacer;
图7为扩张垫块的侧视图；Fig. 7 is the side view of expansion spacer;
图8为推送器的结构示意图；Fig. 8 is the structural representation of pusher;
图9为改装后扩张器的头部结构示意图；Fig. 9 is a schematic diagram of the head structure of the refitted dilator;
其中：1、定型填充块，2、上固定块，3、下固定块，4、第一键槽，6、第一键体，7、螺纹孔，8、推送器，81、推送操作手柄，82、推杆，83、推送头，9、配合盲道，10、扩张垫块，11、第二键体，12、第三键槽，13、扩张板，14、插件。Among them: 1. Shaped filling block, 2. Upper fixing block, 3. Lower fixing block, 4. First keyway, 6. First key body, 7. Threaded hole, 8. Pusher, 81. Push operation handle, 82 , push rod, 83, push head, 9, cooperate blind passage, 10, expansion block, 11, the second key body, 12, the third key groove, 13, expansion plate, 14, plug-in unit.
具体实施方式detailed description
下面通过附图对本发明技术方案进行详细说明，但是本发明的保护范围不局限于所述实施例。The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.
实施例1：一种胸腰椎骨折修复手术的专用工具，包括修复轮廓固定组件和定型填充块1，修复轮廓固定组件植入骨折部位形成修复目标轮廓，定型填充块置入修复轮廓固定组件内形成稳定的修复填充物；修复轮廓固定组件包括至少一对上固定块2和下固定块3，上固定块2底部开设第一键槽4，下固定块3顶部开设第二键槽，定型填充块1的顶部和底部分别设有与键槽配合的第一键体6，定型填充块1上、下表面的第一键体6分别插入上固定块2和下固定块3的键槽内固定上、下固定块以及定型填充块的相对位置；定型填充块上设有推送螺纹孔7，采用推送器8与该推送螺纹孔7配合将定型填充块1推送入修复轮廓固定组件内部。Embodiment 1: A special tool for thoracolumbar fracture repair surgery, including a repair contour fixation component and a shaped filler block 1, the repair contour fixation component is implanted into the fracture site to form a repair target contour, and the shaped filler block is inserted into the repair contour fixation component to form Stable repair filling; the repair contour fixing assembly includes at least one pair of upper fixing blocks 2 and lower fixing blocks 3, the bottom of the upper fixing block 2 is provided with a first keyway 4, the top of the lower fixing block 3 is provided with a second keyway, and the shape of the filling block 1 The top and the bottom are respectively provided with the first key body 6 matched with the key groove, and the first key body 6 on the upper and lower surfaces of the shaped filling block 1 is respectively inserted into the key groove of the upper fixed block 2 and the lower fixed block 3 to fix the upper and lower fixed blocks And the relative position of the shaped filler block; the shaped filler block is provided with a push threaded hole 7, and the pusher 8 is used to cooperate with the push threaded hole 7 to push the shaped filler block 1 into the interior of the repair contour fixing assembly.
本实施例中推送器8包括推送操作手柄81、推杆82和推送头83，操作手柄81和推送头83分别固定于推杆82两端，推送头83与推杆82为可拆卸式连接方式；便于推送头的更换，为便于不同体型的患者，推杆82为可伸缩式结构。In this embodiment, the pusher 8 includes a push operation handle 81, a push rod 82 and a push head 83, the operation handle 81 and the push head 83 are respectively fixed at both ends of the push rod 82, and the push head 83 and the push rod 82 are detachably connected. ; To facilitate the replacement of the push head, for the convenience of patients of different sizes, the push rod 82 is a retractable structure.
本工具需借助专利CN1748654A中公开的扩张器将上、下固定块送入受损椎体，在使用之前需要对现有的扩张器进行改装，使得第一、二键槽卡接在扩张器的头部，且能和第一、二键槽的尾部的配合盲道9良好配合；改装点在于：(1)扩张器头部的扩张板尺寸与本发明工具尺寸配套，使扩张器头部的扩张板可插入第一、二键槽内；(2)扩张器的扩张板顶部加设插件，该插件的尺寸可以插入配合盲道9内；改装完成后即可使用。This tool needs to use the expander disclosed in the patent CN1748654A to send the upper and lower fixing blocks into the damaged vertebral body. Before use, the existing expander needs to be refitted so that the first and second key grooves are clamped on the head of the expander. part, and can cooperate well with the blind passage 9 at the afterbody of the first and second keyways; the modification points are: (1) the expansion plate size of the expander head is matched with the tool size of the present invention, so that the expansion plate of the expander head can be Insert into the first and second keyways; (2) add a plug-in on the top of the expansion plate of the expander, the size of the plug-in can be inserted into the matching blind channel 9; it can be used after the modification is completed.
本实施例中，上固定块与下固定块大小一致，且头部具有圆弧倒角，上、下固定块的尺寸为25mm*5mm*5mm；第一键槽与第二键槽的大小一致，长度为18mm，方形截面的宽度为2.5mm，深度为上固定块高度的0.4倍，第一、二键槽的尾部的配合盲道的尺寸为1.5mm*1.5mm；定型填充块的尺寸为25*58mm*5mm；第一键体的尺寸与第一、第二键槽相配套。修复轮廓固定组件、定型填充块均为多孔钽材质，且修复轮廓固定组件的外表面设有防滑条纹，防滑条纹有助于修复轮廓固定组件很好的嵌入在骨折部位骨质内，防止滑动导致的修复轮廓不稳定的状况。In this embodiment, the size of the upper fixed block is the same as that of the lower fixed block, and the head has arc chamfering. The size of the upper and lower fixed blocks is 25mm*5mm*5mm; the size of the first keyway and the second keyway are the same, and the length The width of the square section is 18mm, the width of the square section is 2.5mm, and the depth is 0.4 times the height of the upper fixed block. The size of the matching blind channel at the tail of the first and second key grooves is 1.5mm*1.5mm; the size of the shaped filling block is 25*58mm* 5mm; the size of the first key body matches the first and second key grooves. The repair contour fixation component and shaped filling block are all made of porous tantalum, and the outer surface of the repair contour fixation component is provided with anti-slip stripes, which help the restoration contour fixation component to be well embedded in the bone of the fracture site, preventing slipping and causing The repair profile instability condition.
采用本工具进行胸腰椎骨折修复手术的具体操作过程包括如下步骤：The specific operation process of using this tool for thoracolumbar fracture repair surgery includes the following steps:
(1)首先需要对专利CN1748654A中公开的扩张器进行适当改装，然后借助改装后的扩张器将受损椎体扩至目标轮廓，然后将上、下固定块的第一、二键槽同时卡接在扩张器的扩张板13上，并使扩张器头部的插件14伸入配合盲道，将上、下固定块送入骨折部位，并使上、下固定块嵌入受损骨节上、下部骨质，形成修复目标轮廓；(1) Firstly, the dilator disclosed in the patent CN1748654A needs to be properly refitted, and then the damaged vertebral body is expanded to the target contour with the help of the refitted dilator, and then the first and second key grooves of the upper and lower fixing blocks are snapped together at the same time On the expansion plate 13 of the dilator, and let the plug-in 14 of the dilator head extend into the blind path, send the upper and lower fixing blocks into the fracture site, and make the upper and lower fixing blocks embedded in the upper and lower bone of the damaged joint , forming the contour of the repair target;
(2)将推杆调节至最佳长度，推送器的推送头旋入定型填充块上的推送螺纹孔内，然后使定型填充块上的第一键体对准上、下固定块上的第一、二键槽后推入上、下固定块之间；(2) Adjust the push rod to the optimal length, screw the push head of the pusher into the push threaded hole on the shaped filling block, and then align the first key body on the shaped filling block with the first key on the upper and lower fixing blocks Push the first and second key slots between the upper and lower fixed blocks;
(3)定型填充块推送结束后，将推送器旋出，手术结束。(3) After the shaped filling block is pushed, unscrew the pusher, and the operation is over.
实施例2：本实施例与实施例1中结构基本一致，其不同在于，本结构中定型填充块的上、下表面还分别设有1个扩张垫块10，扩张垫块上具有与上、下固定块上的第一、第二键槽配合的第二键体11以及与定型填充块上第一键体配合的第三键槽12，其中，扩张垫块的长度与定型填充块一致，厚度为1.5mm；第二键体与第一、第二键槽相配套；第三键槽与第一键体相配套。Embodiment 2: The structure of this embodiment is basically the same as that of Embodiment 1. The difference is that the upper and lower surfaces of the shaped filling block in this structure are respectively provided with an expansion spacer 10, and the expansion spacer has the upper and lower surfaces respectively. The second key body 11 matched with the first and second key grooves on the lower fixed block and the third key groove 12 matched with the first key body on the shaped filling block, wherein the length of the expansion spacer is consistent with the shaped filling block, and the thickness is 1.5mm; the second key body is matched with the first and second key grooves; the third key groove is matched with the first key body.
采用本实施例工具进行胸腰椎骨折修复手术的具体操作过程包括如下步骤：The specific operation process of performing the thoracolumbar fracture repair operation using the tool of this embodiment includes the following steps:
(1)首先需要对专利CN1748654A中公开的扩张器进行适当改装，然后借助改装后的扩张器将受损骨节阔至目标轮廓，然后将上、下固定块的第一、二键槽同时卡接在扩张器的扩张板13上，并使扩张器头部的插件14伸入配合盲道，将上、下固定块送入骨折部位，并使上、下固定块嵌入受损骨节上、下部骨质，形成修复目标轮廓；(1) Firstly, the dilator disclosed in the patent CN1748654A needs to be properly refitted, and then the damaged condyle is widened to the target contour with the help of the refitted dilator, and then the first and second key grooves of the upper and lower fixing blocks are snapped together at the same time The expansion plate 13 of the dilator, and the plug-in 14 of the head of the dilator is extended into the cooperating blind path, the upper and lower fixation blocks are sent into the fracture site, and the upper and lower fixation blocks are embedded in the upper and lower bone of the damaged condyle, Form the contour of the repair target;
(2)将两个扩张垫块分别卡接在定型填充块的上、下表面，然后将推杆调节至最佳长度，推送器的推送头旋入定型填充块上的推送螺纹孔内，然后使定型填充块上的第一键体对准上、下固定块上的第一、二键槽后推入上、下固定块之间；(2) Connect the two expansion pads to the upper and lower surfaces of the shaped filling block respectively, then adjust the push rod to the optimum length, screw the pushing head of the pusher into the pushing threaded hole on the shaped filling block, and then Align the first key body on the shaped filling block with the first and second key grooves on the upper and lower fixing blocks, and then push it between the upper and lower fixing blocks;
(3)定型填充块推送结束后，将推送器旋出，手术结束。(3) After the shaped filling block is pushed, unscrew the pusher, and the operation is over.
如上所述，尽管参照特定的优选实施例已经表示和表述了本发明，但其不得解释为对本发明自身的限制。在不脱离所附权利要求定义的本发明的精神和范围前提下，可对其在形式上和细节上作出各种变化。As stated above, while the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198707.3ACN106580414A (en) | 2016-12-22 | 2016-12-22 | Special tool for thoracolumbar vertebral fracture repair surgery |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198707.3ACN106580414A (en) | 2016-12-22 | 2016-12-22 | Special tool for thoracolumbar vertebral fracture repair surgery |
| Publication Number | Publication Date |
|---|---|
| CN106580414Atrue CN106580414A (en) | 2017-04-26 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611198707.3AWithdrawnCN106580414A (en) | 2016-12-22 | 2016-12-22 | Special tool for thoracolumbar vertebral fracture repair surgery |
| Country | Link |
|---|---|
| CN (1) | CN106580414A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392250A (en)* | 2018-04-12 | 2018-08-14 | 江苏省人民医院（南京医科大学第附属医院） | Operation gun for removing soft tissue in lumbar intervertebral space |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748654A (en)* | 2005-09-19 | 2006-03-22 | 吴乃庆 | bone expander |
| US20070050030A1 (en)* | 2005-08-23 | 2007-03-01 | Kim Richard C | Expandable implant device with interchangeable spacer |
| US20130166028A1 (en)* | 2011-12-22 | 2013-06-27 | A-Spine Asia Co., Ltd. | Composite layer intervertebral retrieving device |
| US20150018952A1 (en)* | 2013-03-14 | 2015-01-15 | Raed M. Ali, M.D., Inc. | Lateral interbody fusion devices, systems and methods |
| US20160128843A1 (en)* | 2014-11-07 | 2016-05-12 | Industrial Technology Research Institute | Medical composite material, method for fabricating the same and applications thereof |
| CN206924104U (en)* | 2016-12-22 | 2018-01-26 | 江苏省人民医院 | A kind of specific purpose tool of thoracolumbar fracture prosthesis |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070050030A1 (en)* | 2005-08-23 | 2007-03-01 | Kim Richard C | Expandable implant device with interchangeable spacer |
| CN1748654A (en)* | 2005-09-19 | 2006-03-22 | 吴乃庆 | bone expander |
| US20130166028A1 (en)* | 2011-12-22 | 2013-06-27 | A-Spine Asia Co., Ltd. | Composite layer intervertebral retrieving device |
| US20150018952A1 (en)* | 2013-03-14 | 2015-01-15 | Raed M. Ali, M.D., Inc. | Lateral interbody fusion devices, systems and methods |
| US20160128843A1 (en)* | 2014-11-07 | 2016-05-12 | Industrial Technology Research Institute | Medical composite material, method for fabricating the same and applications thereof |
| CN206924104U (en)* | 2016-12-22 | 2018-01-26 | 江苏省人民医院 | A kind of specific purpose tool of thoracolumbar fracture prosthesis |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392250A (en)* | 2018-04-12 | 2018-08-14 | 江苏省人民医院（南京医科大学第附属医院） | Operation gun for removing soft tissue in lumbar intervertebral space |
| Publication | Publication Date | Title |
|---|---|---|
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | Application publication date:20170426 | |
| WW01 | Invention patent application withdrawn after publication |