技术领域Technical Field
本发明涉及骨科植入物技术领域，特别是指一种颈椎前路固定板及系统。The invention relates to the technical field of orthopedic implants, in particular to an anterior cervical vertebra fixation plate and a system.
背景技术Background Art
颈椎后纵韧带骨化症(OPLL)是临床上常见的病，具体的手术分为颈椎前路、后路和前后路联合手术。例如使用颈椎后路椎管成形术、颈椎椎板成形术、颈椎前路椎体次全切除术等，这些手术各有优缺点。Ossification of the posterior longitudinal ligament (OPLL) is a common disease in clinical practice. The specific surgeries are divided into anterior cervical surgery, posterior cervical surgery, and combined anterior and posterior cervical surgery. For example, posterior cervical laminoplasty, cervical laminoplasty, anterior cervical corpectomy, etc., each of these surgeries has its own advantages and disadvantages.
前路手术：可以直接切除骨化物，达到有效根治的目的，但是技术要求高、风险大，若骨化物厚度超过5mm，则不适宜进行前路手术。Anterior approach surgery: The ossification can be directly removed to achieve the purpose of effective radical cure, but it has high technical requirements and high risks. If the thickness of the ossification exceeds 5mm, anterior approach surgery is not suitable.
后路手术：安全性高，但是破坏了椎管内完整的血液供应，不利于脊髓康复，并且无法切除骨化物，仅能通过间接减压达到缓轻病情的效果，手术疗效难以保证；后路减压后脊髓向后漂移，可能过度牵拉神经根，引起术后神经根麻痹，导致上肢痛麻及活动障碍。Posterior approach surgery: It is highly safe, but it destroys the complete blood supply in the spinal canal, is not conducive to spinal cord rehabilitation, and cannot remove ossified materials. It can only alleviate the condition through indirect decompression, and the surgical efficacy is difficult to guarantee. After posterior decompression, the spinal cord drifts backward, which may over-twist the nerve roots, causing postoperative nerve root paralysis, leading to pain and numbness in the upper limbs and movement disorders.
ACAF(颈椎前路椎体骨化物复合体前移融合术)手术技术立足于“骨化物前移”的理念，完成椎管解剖成形，既达到了减压的目的，又避免了直接切除骨化物的风险，极大的降低了前路手术的风险和难度，大大减少了脑脊液漏及脊髓损伤的并发症。ACAF (Anterior Cervical Ossified Vertebral Complex Anterior fusion) surgical technique is based on the concept of "anterior displacement of ossified matter" and completes the anatomical shaping of the spinal canal, which not only achieves the purpose of decompression but also avoids the risk of direct removal of ossified matter, greatly reducing the risk and difficulty of anterior surgery and greatly reducing the complications of cerebrospinal fluid leakage and spinal cord injury.
现有ACAF颈椎前路固定板系统通常包括颈前路板和多个融合器，颈前路板板体一般跨度节段比较多，其纵向两侧设有多组椎体连接螺钉孔，椎体连接螺钉孔内设有椎体连接螺钉，颈前路板板体中部设有融合器(cage)连接螺钉孔，融合器连接螺钉孔内设有用于连接融合器后部的融合器连接螺钉。The existing ACAF anterior cervical fixation plate system usually includes an anterior cervical plate and multiple fusion devices. The anterior cervical plate body generally spans more segments, and is provided with multiple groups of vertebral connecting screw holes on both longitudinal sides. The vertebral connecting screw holes are provided with vertebral connecting screws. A fusion device (cage) connecting screw hole is provided in the middle of the anterior cervical plate body, and the fusion device connecting screw hole is provided with a fusion device connecting screw for connecting the back of the fusion device.
发明人在研究过程中发现，由于椎体连接螺钉数目较多，若按照现有技术对椎体连接螺钉进行逐个防退锁定，则需要较长的手术时间，增加了手术风险。During the research, the inventors found that due to the large number of vertebral connecting screws, if the vertebral connecting screws were locked one by one to prevent retreat according to the existing technology, it would take a long operation time and increase the surgical risk.
发明内容Summary of the invention
本发明要解决的技术问题是提供一种能够快速实现椎体连接螺钉防退锁定的颈椎前路固定板及系统。The technical problem to be solved by the present invention is to provide an anterior cervical fixation plate and system capable of quickly realizing anti-retraction locking of vertebral connecting screws.
为解决上述技术问题，本发明提供技术方案如下：In order to solve the above technical problems, the present invention provides the following technical solutions:
一方面，提供一种颈椎前路固定板，包括板体，所述板体的纵向两侧设有椎体连接螺钉孔，所述板体的中部设有融合器连接螺钉孔，所述板体上沿长度方向并列设有第一挡片和第二挡片，其中：On the one hand, a cervical anterior fixation plate is provided, comprising a plate body, vertebral body connection screw holes are arranged on both longitudinal sides of the plate body, a fusion device connection screw hole is arranged in the middle of the plate body, and a first baffle and a second baffle are arranged in parallel along the length direction of the plate body, wherein:
所述板体上针对第一挡片设置有至少一个第一摆臂，所述第一摆臂一端与板体活动连接，另一端与第一挡片铰接以与第一挡片形成平行四边形结构，摆动第一摆臂能够使得第一挡片在板体一侧的椎体连接螺钉孔遮挡位和让开位之间移动；At least one first swing arm is provided on the plate body for the first baffle, one end of the first swing arm is movably connected to the plate body, and the other end is hinged to the first baffle to form a parallelogram structure with the first baffle, and swinging the first swing arm can make the first baffle move between a blocking position and a clearing position of the vertebral body connection screw hole on one side of the plate body;
所述板体上针对第二挡片设置有至少一个第二摆臂，所述第二摆臂一端与板体活动连接，另一端与第二挡片铰接以与第二挡片形成平行四边形结构，摆动第二摆臂能够使得第二挡片在板体另一侧的椎体连接螺钉孔遮挡位和让开位之间移动。At least one second swing arm is arranged on the plate body for the second baffle, one end of the second swing arm is movably connected to the plate body, and the other end is hinged to the second baffle to form a parallelogram structure with the second baffle, and swinging the second swing arm can make the second baffle move between the blocking position and the clearing position of the vertebral connection screw hole on the other side of the plate body.
所述第一摆臂和第二摆臂一体设置形成旋转臂，所述旋转臂的中部与板体连接。The first swing arm and the second swing arm are integrally arranged to form a rotating arm, and the middle portion of the rotating arm is connected to the plate body.
进一步的，所述旋转臂有两个，两个旋转臂分别位于板体的两端。Furthermore, there are two rotating arms, which are respectively located at two ends of the plate body.
进一步的，所述板体上设有螺纹孔，所述旋转臂上设置有螺钉安装孔，所述旋转臂通过穿装在所述螺钉安装孔中的锁紧螺钉安装在板体上。Furthermore, the plate body is provided with a threaded hole, the rotating arm is provided with a screw mounting hole, and the rotating arm is mounted on the plate body by means of a locking screw inserted into the screw mounting hole.
进一步的，所述锁紧螺钉的头部下表面为平面，该平面上设有径向凸齿，所述旋转臂上设有与所述径向凸齿相配合的环形齿槽，所述环形齿槽由在所述旋转臂上挖设的两个以上径向凸齿形成。Furthermore, the lower surface of the head of the locking screw is a plane, on which radial convex teeth are provided, and the rotating arm is provided with an annular tooth groove matching the radial convex teeth, and the annular tooth groove is formed by more than two radial convex teeth dug on the rotating arm.
进一步的，所述第一挡片和第二挡片对应侧面每个椎体连接螺钉孔的部位设置有向侧边凸起的凸片。Furthermore, the first blocking piece and the second blocking piece are provided with convex pieces protruding toward the side at the positions corresponding to the side where each vertebral body is connected to the screw hole.
进一步的，所述板体的中部挖设有用于容纳所述第一挡片和第二挡片的纵向凹槽。Furthermore, a longitudinal groove for accommodating the first baffle and the second baffle is dug in the middle of the plate body.
进一步的，所述纵向凹槽的内侧设有用于避让所述椎体连接螺钉孔内椎体连接螺钉的半圆形开孔。Furthermore, a semicircular opening is provided on the inner side of the longitudinal groove for accommodating the vertebral connecting screw in the vertebral connecting screw hole.
另一方面，提供一种颈椎前路固定板系统，包括颈前路固定板、融合器以及椎体连接螺钉，所述颈前路固定板为上述的颈椎前路固定板。On the other hand, a cervical anterior fixation plate system is provided, comprising an anterior cervical fixation plate, a fusion device and vertebral connecting screws, wherein the anterior cervical fixation plate is the anterior cervical fixation plate mentioned above.
进一步的，椎体连接螺钉安装在所述颈椎前路固定板的椎体连接螺钉孔中，所述板体纵向两侧的椎体连接螺钉的螺旋方向相反。Furthermore, the vertebral connecting screws are installed in the vertebral connecting screw holes of the anterior cervical fixation plate, and the spiral directions of the vertebral connecting screws on both sides of the plate body are opposite.
本发明具有以下有益效果：The present invention has the following beneficial effects:
本发明的颈椎前路固定板及系统，包括板体，板体上沿长度方向并列设有第一挡片和第二挡片，板体上针对第一挡片设置有至少一个第一摆臂，摆动第一摆臂能够使得第一挡片在板体一侧的椎体连接螺钉孔遮挡位和让开位之间移动；板体上针对第二挡片设置有至少一个第二摆臂，摆动第二摆臂能够使得第二挡片在板体另一侧的椎体连接螺钉孔遮挡位和让开位之间移动。本发明无需对椎体连接螺钉进行逐个防退锁定，不需要较长的手术时间，操作方便，能够快速实现椎体连接螺钉防退锁定，降低了手术风险。The anterior cervical fixation plate and system of the present invention include a plate body, a first baffle and a second baffle are arranged in parallel along the length direction of the plate body, at least one first swing arm is arranged on the plate body for the first baffle, and swinging the first swing arm can make the first baffle move between the blocking position and the clearing position of the vertebral body connection screw hole on one side of the plate body; at least one second swing arm is arranged on the plate body for the second baffle, and swinging the second swing arm can make the second baffle move between the blocking position and the clearing position of the vertebral body connection screw hole on the other side of the plate body. The present invention does not need to lock the vertebral body connection screws one by one, does not require a long operation time, is easy to operate, can quickly realize the anti-retraction locking of the vertebral body connection screws, and reduces the surgical risk.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明颈椎前路固定板系统的整体结构示意图；FIG1 is a schematic diagram of the overall structure of the anterior cervical fixation plate system of the present invention;
图2为图1所示颈椎前路固定板系统去掉第一挡片和第二挡片后的结构示意图；FIG2 is a schematic structural diagram of the anterior cervical fixation plate system shown in FIG1 after removing the first baffle and the second baffle;
图3为图1所示颈椎前路固定板系统的端部结构示意图；FIG3 is a schematic diagram of the end structure of the anterior cervical fixation plate system shown in FIG1 ;
图4为本发明颈椎前路固定板系统中第一挡片和第二挡片在板体上的初始位置示意图；FIG4 is a schematic diagram of the initial positions of the first baffle and the second baffle on the plate body in the anterior cervical fixation plate system of the present invention;
图5为本发明颈椎前路固定板系统中板体的结构示意图，其中(a)为一个方向的侧视图，(b)为正视图，(c)为另一方向的侧视图，(b)和(c)中暂时未示出融合器连接螺钉孔；FIG5 is a schematic diagram of the structure of the plate body in the anterior cervical fixation plate system of the present invention, wherein (a) is a side view in one direction, (b) is a front view, and (c) is a side view in another direction, and the screw holes for connecting the fusion device are temporarily not shown in (b) and (c);
图6为本发明颈椎前路固定板系统中第一挡片的结构示意图，其中(a)为侧视图，(b)为正视图；FIG6 is a schematic diagram of the structure of the first baffle in the anterior cervical fixation plate system of the present invention, wherein (a) is a side view and (b) is a front view;
图7为本发明颈椎前路固定板系统中锁紧螺钉的结构示意图，其中(a)为正视图，(b)为俯视图，(c)为立体图；FIG7 is a schematic diagram of the structure of the locking screw in the anterior cervical fixation plate system of the present invention, wherein (a) is a front view, (b) is a top view, and (c) is a stereogram;
图8为本发明颈椎前路固定板系统中旋转臂的结构示意图，其中(a)为正视图，(b)为侧视图，(c)为立体图；FIG8 is a schematic structural diagram of a rotating arm in the anterior cervical fixation plate system of the present invention, wherein (a) is a front view, (b) is a side view, and (c) is a stereogram;
图9为本发明颈椎前路固定板系统中球型帽的结构示意图，其中(a)为正视图，(b)为俯视图，(c)为立体图；FIG9 is a schematic diagram of the structure of a spherical cap in the anterior cervical fixation plate system of the present invention, wherein (a) is a front view, (b) is a top view, and (c) is a stereogram;
图10为本发明颈椎前路固定板系统中融合器连接螺钉的结构示意图，其中(a)为正视图，(b)为立体图；FIG10 is a schematic diagram of the structure of the fusion device connecting screws in the anterior cervical fixation plate system of the present invention, wherein (a) is a front view and (b) is a stereogram;
图11为本发明颈椎前路固定板系统中融合器的结构示意图；FIG11 is a schematic diagram of the structure of a fusion device in the anterior cervical fixation plate system of the present invention;
图12为本发明颈椎前路固定板系统中沿融合器连接螺钉孔横向的剖视图。12 is a cross-sectional view along the transverse direction of the screw hole connecting the fusion device in the anterior cervical fixation plate system of the present invention.
具体实施方式DETAILED DESCRIPTION
为使本发明要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.
一方面，本发明提供一种颈椎前路固定板，如图1-12所示，包括板体1，板体1的纵向(长度方向，也即图1中箭头所示方向)两侧设有椎体连接螺钉孔11，板体1的中部设有融合器连接螺钉孔12，板体1上沿长度方向并列设有第一挡片13和第二挡片13’，其中：On the one hand, the present invention provides an anterior cervical vertebrae fixation plate, as shown in FIGS. 1-12 , comprising a plate body 1, vertebral body connection screw holes 11 are provided on both sides of the plate body 1 in the longitudinal direction (length direction, i.e., the direction indicated by the arrow in FIG. 1 ), a fusion device connection screw hole 12 is provided in the middle of the plate body 1, and a first baffle 13 and a second baffle 13′ are provided in parallel along the length direction on the plate body 1, wherein:
板体1上针对第一挡片13设置有至少一个第一摆臂5(图中所示实施例中在第一挡片13的两端个设有一个第一摆臂5)，第一摆臂5一端与板体1活动连接，另一端与第一挡片13铰接以与第一挡片13形成平行四边形结构，摆动第一摆臂5能够使得第一挡片13在板体1一侧的椎体连接螺钉孔11遮挡位和让开位之间移动；At least one first swing arm 5 is provided on the plate body 1 for the first baffle 13 (in the embodiment shown in the figure, one first swing arm 5 is provided at both ends of the first baffle 13), one end of the first swing arm 5 is movably connected to the plate body 1, and the other end is hinged to the first baffle 13 to form a parallelogram structure with the first baffle 13, and swinging the first swing arm 5 can make the first baffle 13 move between the blocking position and the clearing position of the vertebral body connection screw hole 11 on one side of the plate body 1;
板体1上针对第二挡片13’设置有至少一个第二摆臂5’(图中所示实施例中在第一挡片13’的两端个设有一个第一摆臂5’)，第二摆臂5’一端与板体1活动连接，另一端与第二挡片5’铰接以与第二挡片13’形成平行四边形结构，摆动第二摆臂2’能够使得第二挡片13’在板体1另一侧的椎体连接螺钉孔11遮挡位和让开位之间移动。At least one second swing arm 5' is provided on the plate body 1 for the second baffle 13' (in the embodiment shown in the figure, a first swing arm 5' is provided at both ends of the first baffle 13'), one end of the second swing arm 5' is movably connected to the plate body 1, and the other end is hinged to the second baffle 5' to form a parallelogram structure with the second baffle 13'. Swinging the second swing arm 2' can make the second baffle 13' move between the blocking position and the clearing position of the vertebral connecting screw hole 11 on the other side of the plate body 1.
初始时，第一挡片13和第二挡片13’均位于让开位(具体的，如图4所示，板体1的中部且不遮挡椎体连接螺钉孔11)，使用时，驱动第一摆臂5和第二摆臂5’，第一摆臂5和第二摆臂5’带动第一挡片13和第二挡片13’向遮挡位(即板体1的纵向两侧)移动，从而使第一挡片13和第二挡片13’遮挡住板体1纵向两侧的椎体连接螺钉2(如图1所示)。Initially, the first baffle 13 and the second baffle 13' are both located in the clear position (specifically, as shown in FIG4 , the middle of the plate body 1 and do not block the vertebral connecting screw hole 11). When in use, the first swing arm 5 and the second swing arm 5' are driven, and the first swing arm 5 and the second swing arm 5' drive the first baffle 13 and the second baffle 13' to move to the blocking position (i.e., the longitudinal sides of the plate body 1), so that the first baffle 13 and the second baffle 13' block the vertebral connecting screws 2 on the longitudinal sides of the plate body 1 (as shown in FIG1 ).
本发明的颈椎前路固定板，包括板体，板体上沿长度方向并列设有第一挡片和第二挡片，板体上针对第一挡片设置有至少一个第一摆臂，摆动第一摆臂能够使得第一挡片在板体一侧的椎体连接螺钉孔遮挡位和让开位之间移动；板体上针对第二挡片设置有至少一个第二摆臂，摆动第二摆臂能够使得第二挡片在板体另一侧的椎体连接螺钉孔遮挡位和让开位之间移动。本发明无需对椎体连接螺钉进行逐个防退锁定，不需要较长的手术时间，操作方便，能够快速实现椎体连接螺钉防退锁定，降低了手术风险。The anterior cervical fixation plate of the present invention comprises a plate body, a first baffle and a second baffle are arranged in parallel along the length direction of the plate body, at least one first swing arm is arranged on the plate body for the first baffle, and swinging the first swing arm can make the first baffle move between the blocking position and the clearing position of the vertebral body connection screw hole on one side of the plate body; at least one second swing arm is arranged on the plate body for the second baffle, and swinging the second swing arm can make the second baffle move between the blocking position and the clearing position of the vertebral body connection screw hole on the other side of the plate body. The present invention does not need to lock the vertebral body connection screws one by one, does not require a long operation time, is easy to operate, can quickly realize the anti-retraction locking of the vertebral body connection screws, and reduces the surgical risk.
如图1-2所示，为便于驱动第一挡片13和第二挡片13’，第一摆臂5和第二摆臂5’一体设置形成旋转臂(为一体结构)，在图中所示实施例中，旋转臂有两个，两个旋转臂分别位于板体1的两端，此时两旋转臂与第一挡片13、第二挡片13’形成平行四边形铰链结构，旋转臂的中部与板体1连接。在图中所示实施例中，A、B分别是其中一个旋转臂与第一挡片13、第二挡片13’的铰接轴，C、D分别是另一个旋转臂与第一挡片13、第二挡片13’的铰接轴。As shown in Fig. 1-2, in order to facilitate driving the first baffle 13 and the second baffle 13', the first swing arm 5 and the second swing arm 5' are integrally arranged to form a rotating arm (an integral structure). In the embodiment shown in the figure, there are two rotating arms, which are respectively located at the two ends of the plate body 1. At this time, the two rotating arms and the first baffle 13 and the second baffle 13' form a parallelogram hinge structure, and the middle part of the rotating arm is connected to the plate body 1. In the embodiment shown in the figure, A and B are respectively the hinge axes of one of the rotating arms and the first baffle 13 and the second baffle 13', and C and D are respectively the hinge axes of the other rotating arm and the first baffle 13 and the second baffle 13'.
为便于将旋转臂安装在板体1上，板体1上设有螺纹孔14，旋转臂上设置有螺钉安装孔，旋转臂通过穿装在螺钉安装孔中的锁紧螺钉52安装在板体1上，锁紧螺钉52一方面可以将旋转臂安装在板体1上，另一方面还可以在旋转臂驱动第一挡片13和第二挡片13’移动后锁定旋转臂，从而将第一挡片13和第二挡片13’也锁定在板体1上。In order to facilitate the installation of the rotating arm on the plate body 1, a threaded hole 14 is provided on the plate body 1, and a screw mounting hole is provided on the rotating arm. The rotating arm is installed on the plate body 1 by a locking screw 52 inserted into the screw mounting hole. The locking screw 52 can install the rotating arm on the plate body 1 on the one hand, and on the other hand, it can also lock the rotating arm after the rotating arm drives the first baffle 13 and the second baffle 13' to move, thereby also locking the first baffle 13 and the second baffle 13' on the plate body 1.
如图1和图7-8所示，锁紧螺钉52的头部下表面可以为平面，该平面上可以设有径向凸齿521，旋转臂上设有与径向凸齿521相配合的环形齿槽51，环形齿槽51具体可以由在旋转臂上挖设的两个以上径向凸齿形成。As shown in Figures 1 and 7-8, the lower surface of the head of the locking screw 52 can be a plane, on which a radial convex tooth 521 can be provided, and the rotating arm is provided with an annular tooth groove 51 that matches the radial convex tooth 521. The annular tooth groove 51 can be specifically formed by two or more radial convex teeth dug on the rotating arm.
使用时，利用器械先将锁紧螺钉52旋入板体1上的螺纹孔14，初始时锁紧螺钉52头部上的径向凸齿521与旋转臂上的环形齿槽51不啮合，待锁紧螺钉52旋入板体1一定距离后，锁紧螺钉52头部上的径向凸齿521与旋转臂上的环形齿槽51开始啮合，此时继续旋入锁紧螺钉52，锁紧螺钉52带动旋转臂转动，使位于让开位的第一挡片13和第二挡片13’分别向遮挡位移动，当两挡片遮挡住板体1纵向两侧的椎体连接螺钉孔11时(图1所示位置)，旋转臂及两挡片保持不动，继续旋转锁紧螺钉52，直至防退结构全部锁紧。旋转臂上的径向凸齿采用挖设方式形成，可保证产品整体有较低的切迹。When in use, the locking screw 52 is first screwed into the threaded hole 14 on the plate body 1 using an instrument. Initially, the radial protruding teeth 521 on the head of the locking screw 52 do not mesh with the annular tooth groove 51 on the rotating arm. After the locking screw 52 is screwed into the plate body 1 for a certain distance, the radial protruding teeth 521 on the head of the locking screw 52 begin to mesh with the annular tooth groove 51 on the rotating arm. At this time, the locking screw 52 is continued to be screwed in, and the locking screw 52 drives the rotating arm to rotate, so that the first baffle 13 and the second baffle 13' located in the clearing position move to the blocking position respectively. When the two baffles block the vertebral connecting screw holes 11 on both sides of the plate body 1 in the longitudinal direction (the position shown in Figure 1), the rotating arm and the two baffles remain stationary, and the locking screw 52 is continued to be rotated until the anti-retraction structure is completely locked. The radial protruding teeth on the rotating arm are formed by digging, which can ensure that the product has a lower notch as a whole.
为了较好的遮挡椎体连接螺钉孔11，第一挡片13和第二挡片13’对应侧面每个椎体连接螺钉孔11的部位可以设置有向侧边凸起的凸片131。In order to better cover the vertebral body connecting screw hole 11, the first blocking piece 13 and the second blocking piece 13' may be provided with a convex piece 131 protruding toward the side at the position of each vertebral body connecting screw hole 11 corresponding to the side.
如图1-2所示，为进一步降低切迹，板体1的中部可以挖设有用于容纳第一挡片13和第二挡片13’的纵向凹槽15。并且，纵向凹槽15的内侧可以设有用于避让椎体连接螺钉2的半圆形开孔151，相应的，第一挡片13和第二挡片13’上的凸片131优选为半圆形，这样当第一挡片13和第二挡片13’分别向板体1的纵向两侧移动(由于为平行四边形铰链结构，此时为斜向移动)的过程中，第一挡片13和第二挡片13’上的凸片131逐步卡入(由于是斜向移动，故存在摩擦阻力)板体1的纵向两侧的半圆形开孔151，半圆形开孔151与凸片131形成卡接结构，当椎体连接螺钉2受力要向后退钉时，其需要推动第一挡片13和第二挡片13’离开椎体连接螺钉孔11，此时纵向凹槽15的半圆形开孔151与挡片上的凸片131形成的卡接结构会阻止挡片移位，这样相对于只依赖板体1两端的锁紧螺钉52进行锁定的方案，该方式由于形成了卡接结构，能够大大提高第一挡片13和第二挡片13’的牢固性，增加防退效果。As shown in Fig. 1-2, in order to further reduce the notch, a longitudinal groove 15 for accommodating the first baffle 13 and the second baffle 13' can be dug in the middle of the plate body 1. In addition, a semicircular opening 151 for avoiding the vertebral connecting screw 2 can be provided on the inner side of the longitudinal groove 15. Accordingly, the protrusions 131 on the first baffle 13 and the second baffle 13' are preferably semicircular, so that when the first baffle 13 and the second baffle 13' move to the longitudinal sides of the plate body 1 respectively (due to the parallelogram hinge structure, it is an oblique movement at this time), the protrusions 131 on the first baffle 13 and the second baffle 13' are gradually inserted into the semicircular openings 151 on the longitudinal sides of the plate body 1 (due to the oblique movement, there is friction resistance) The semicircular opening 151 and the protruding piece 131 form a snap-fitting structure. When the vertebral connecting screw 2 is subjected to force to retract the screw, it needs to push the first blocking piece 13 and the second blocking piece 13' to leave the vertebral connecting screw hole 11. At this time, the snap-fitting structure formed by the semicircular opening 151 of the longitudinal groove 15 and the protruding piece 131 on the blocking piece will prevent the blocking piece from shifting. Compared with the solution that only relies on the locking screws 52 at both ends of the plate body 1 for locking, this method can greatly improve the firmness of the first blocking piece 13 and the second blocking piece 13' and increase the anti-retraction effect due to the formation of the snap-fitting structure.
另一方面，本发明提供一种颈椎前路固定板系统，包括颈前固定路板、融合器3以及椎体连接螺钉2，颈前路固定板为上述的颈椎前路固定板，由于颈椎前路固定板的结构与上相同，故此处不再赘述。On the other hand, the present invention provides an anterior cervical fixation plate system, including an anterior cervical fixation plate, a fusion device 3 and a vertebral connecting screw 2. The anterior cervical fixation plate is the above-mentioned anterior cervical fixation plate. Since the structure of the anterior cervical fixation plate is the same as above, it will not be repeated here.
本发明的颈椎前路固定板系统，包括板体，板体上沿长度方向并列设有第一挡片和第二挡片，板体上针对第一挡片设置有至少一个第一摆臂，摆动第一摆臂能够使得第一挡片在板体一侧的椎体连接螺钉孔遮挡位和让开位之间移动；板体上针对第二挡片设置有至少一个第二摆臂，摆动第二摆臂能够使得第二挡片在板体另一侧的椎体连接螺钉孔遮挡位和让开位之间移动。本发明无需对椎体连接螺钉进行逐个防退锁定，不需要较长的手术时间，操作方便，能够快速实现椎体连接螺钉防退锁定，降低了手术风险。The anterior cervical fixation plate system of the present invention comprises a plate body, a first baffle and a second baffle are arranged in parallel along the length direction of the plate body, at least one first swing arm is arranged on the plate body for the first baffle, and swinging the first swing arm can make the first baffle move between the blocking position and the clearing position of the vertebral body connection screw hole on one side of the plate body; at least one second swing arm is arranged on the plate body for the second baffle, and swinging the second swing arm can make the second baffle move between the blocking position and the clearing position of the vertebral body connection screw hole on the other side of the plate body. The present invention does not need to lock the vertebral body connection screws one by one, does not require a long operation time, is easy to operate, can quickly realize the anti-retraction locking of the vertebral body connection screws, and reduces the surgical risk.
如图3所示，椎体连接螺钉2安装在颈椎前路固定板的椎体连接螺钉孔11中，板体1纵向两侧的椎体连接螺钉2的螺旋优选方向相反，这样椎体连接螺钉2受到某一方向的扭矩时，保证有一侧椎体连接螺钉2是锁紧状态，防止椎体连接螺钉2退出。As shown in Figure 3, the vertebral connecting screw 2 is installed in the vertebral connecting screw hole 11 of the anterior cervical fixation plate, and the spiral directions of the vertebral connecting screws 2 on both sides of the plate body 1 are preferably opposite. In this way, when the vertebral connecting screw 2 is subjected to torque in a certain direction, it is ensured that one side of the vertebral connecting screw 2 is in a locked state to prevent the vertebral connecting screw 2 from withdrawing.
如图9-10和图12所示，融合器连接螺钉孔12的内侧壁设有定位凹槽121(该定位凹槽121具有上下侧壁/收口结构，以使球型帽6外表面的环形凸起61卡接在定位凹槽121内之后会受到上下侧壁/收口结构的阻挡从而不会从上下两个方向脱出)，融合器连接螺钉4的螺钉头上设有球型帽6，球型帽6的外表面设有与定位凹槽121相配合的环形凸起61。As shown in Figures 9-10 and 12, the inner wall of the fusion device connecting screw hole 12 is provided with a positioning groove 121 (the positioning groove 121 has an upper and lower side wall/closing structure, so that the annular protrusion 61 on the outer surface of the spherical cap 6 will be blocked by the upper and lower side wall/closing structure after being snapped into the positioning groove 121 and will not fall out from the upper and lower directions), and the fusion device connecting screw 4 is provided with a spherical cap 6 on the screw head, and the outer surface of the spherical cap 6 is provided with an annular protrusion 61 that matches the positioning groove 121.
组装时，可以先将球型帽6的环形凸起61卡入定位凹槽121内，再将融合器连接螺钉4的尾部穿过球型帽6与融合器3连接，这样当融合器连接螺钉4与融合器3连接后，定位凹槽121与环形凸起61相配合使得融合器连接螺钉4的螺钉头作为支点，可调节融合器3前后方向与板体1间的距离，从而可根据术中需要灵活方便的调节融合器3位置。During assembly, the annular protrusion 61 of the spherical cap 6 can be first inserted into the positioning groove 121, and then the tail of the fusion device connecting screw 4 can be passed through the spherical cap 6 to connect with the fusion device 3. In this way, when the fusion device connecting screw 4 is connected to the fusion device 3, the positioning groove 121 and the annular protrusion 61 cooperate with each other so that the screw head of the fusion device connecting screw 4 can be used as a fulcrum to adjust the distance between the fusion device 3 and the plate body 1 in the front-to-back direction, so that the position of the fusion device 3 can be flexibly and conveniently adjusted according to the needs during the operation.
进一步的，球型帽6内侧可以设有带内螺纹的螺纹孔62，融合器连接螺钉4的螺钉头上设有与内螺纹相配合的外螺纹42，这样内螺纹与外螺纹42相配合使融合器连接螺钉4和球型帽6连接在一起。球型帽6的螺纹孔和融合器连接螺钉4的螺钉头具体可以均为上大下小的锥形。Furthermore, a threaded hole 62 with an internal thread may be provided on the inner side of the spherical cap 6, and an external thread 42 matching the internal thread may be provided on the screw head of the fusion device connecting screw 4, so that the internal thread and the external thread 42 match to connect the fusion device connecting screw 4 and the spherical cap 6. Specifically, the threaded hole of the spherical cap 6 and the screw head of the fusion device connecting screw 4 may both be tapered with a larger top and a smaller bottom.
为方便融合器3沿板体1纵向方向的位置调整，融合器连接螺钉孔12可以为纵向长圆孔(如图1和图2所示)。并且，定位凹槽121的高度优选大于环形凸起61的厚度，这样环形凸起61可以在定位凹槽121内有一定的摆动，便于微调融合器3的位置。In order to facilitate the position adjustment of the fusion device 3 along the longitudinal direction of the plate body 1, the fusion device connecting screw hole 12 can be a longitudinal oblong hole (as shown in Figures 1 and 2). In addition, the height of the positioning groove 121 is preferably greater than the thickness of the annular protrusion 61, so that the annular protrusion 61 can have a certain swing in the positioning groove 121, which is convenient for fine-tuning the position of the fusion device 3.
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412057.2ACN113576634B (en) | 2021-04-16 | 2021-04-16 | Anterior cervical fixation plates and systems |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412057.2ACN113576634B (en) | 2021-04-16 | 2021-04-16 | Anterior cervical fixation plates and systems |
| Publication Number | Publication Date |
|---|---|
| CN113576634A CN113576634A (en) | 2021-11-02 |
| CN113576634Btrue CN113576634B (en) | 2024-09-20 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110412057.2AActiveCN113576634B (en) | 2021-04-16 | 2021-04-16 | Anterior cervical fixation plates and systems |
| Country | Link |
|---|---|
| CN (1) | CN113576634B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288614A (en)* | 2018-11-09 | 2019-02-01 | 中国人民解放军第二军医大学第二附属医院 | A cervical vertebra natural height anterior fixation and fusion system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7008426B2 (en)* | 2001-12-14 | 2006-03-07 | Paul Kamaljit S | Bone treatment plate assembly |
| US20050177160A1 (en)* | 2004-02-10 | 2005-08-11 | Baynham Bret O. | Dynamic cervical plate |
| US8002809B2 (en)* | 2004-02-10 | 2011-08-23 | Atlas Spine, Inc. | Dynamic cervical plate |
| CN102038545B (en)* | 2009-10-16 | 2015-04-15 | 上海微创骨科医疗科技有限公司 | Locking device of anterior cervical vertebra steel plate |
| US9918759B2 (en)* | 2013-11-13 | 2018-03-20 | Kamaljit S. Paul | Bone treatment implants, and springs therefore |
| CN205758686U (en)* | 2016-06-02 | 2016-12-07 | 武汉德骼拜尔外科植入物有限公司 | A kind of cervical anterior bone plate system |
| CN108720916A (en)* | 2018-05-25 | 2018-11-02 | 东莞市联洲知识产权运营管理有限公司 | A kind of angle bone plate |
| US11076892B2 (en)* | 2018-08-03 | 2021-08-03 | Neurostructures, Inc. | Anterior cervical plate |
| CN211325494U (en)* | 2019-12-17 | 2020-08-25 | 杨小平 | Orthopedics backbone fixing device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288614A (en)* | 2018-11-09 | 2019-02-01 | 中国人民解放军第二军医大学第二附属医院 | A cervical vertebra natural height anterior fixation and fusion system |
| Publication number | Publication date |
|---|---|
| CN113576634A (en) | 2021-11-02 |
| Publication | Publication Date | Title |
|---|---|---|
| US11730462B2 (en) | Orthopedic tools for implantation | |
| US11903621B2 (en) | Rod reduction device and method of use | |
| US7618424B2 (en) | Orthopedic instrument | |
| US7588579B2 (en) | Apparatus for intraoral distraction osteotomy to widen the upper jaw | |
| JP4741141B2 (en) | System and method for stabilizing a human spine with a bone plate | |
| US8617213B2 (en) | Low profile transverse connector | |
| US9629664B2 (en) | Anterior cervical plate | |
| EP1727477B1 (en) | Instruments for minimally invasive tissue retraction and surgery | |
| EP0267959A1 (en) | Distraction rods | |
| JP2018534056A (en) | Interspinous universal dynamic holder | |
| US10314627B2 (en) | Alignment guide for cervical spine plate | |
| CN113576634B (en) | Anterior cervical fixation plates and systems | |
| BR112017009487B1 (en) | Detachable actuator arm for distractor devices | |
| CN113693697B (en) | Bone block lifting system, bone block lifting auxiliary instrument and vertebral body fixing plate | |
| CN209091578U (en) | Cervical vertebra natural height fixation plate | |
| JP6710696B2 (en) | Device and method for treating spinous processes | |
| CN116919680B (en) | Spinal orthopaedics implant with extension mechanism | |
| CN105455888A (en) | Thoracolumbar spine anterior adjustable zero-incisura minimally-invasive supporting steel plate | |
| CN215129877U (en) | Adjustable growth valve and posterior spinal internal fixation system | |
| CN111888057A (en) | Cervical vertebra posterior joint intertrochanteric dissection type fusion cage | |
| RU2100977C1 (en) | Device for skeletal extension | |
| UA35075A (en) | The device for the backbone fixation |
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |