CN204016461U - A kind of Wicresoft waist sacral locking axis is to merging internal fixation system - Google Patents
- ️Wed Dec 17 2014
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- CN204016461U CN204016461U CN201420495182.XU CN201420495182U CN204016461U CN 204016461 U CN204016461 U CN 204016461U CN 201420495182 U CN201420495182 U CN 201420495182U CN 204016461 U CN204016461 U CN 204016461U Authority
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- 238000005516 engineering process Methods 0.000 description 2
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Abstract
本实用新型公开了一种微创腰骶椎带锁轴向融合内固定系统，其特征在于：包括多孔连接块，多孔连接块上分别安装有定位瞄准装置和螺钉植入装置，定位瞄准装置上设置有定位瞄准机构；所述多孔连接块与螺钉植入装置之间设置有固定装置。作为一种改进，所述多孔连接块上均匀设置有通孔，所述定位瞄准装置和螺钉植入装置分别安装在多孔连接块上的通孔上；所述多孔连接块上设置有与通孔相对应的紧固孔，紧固孔上螺纹连接有紧固螺栓。本实用新型结构简单，使用时可调节部位少，操作简单方便，并且能够保证移位偏差小，提高了植入的精度。
The utility model discloses a minimally invasive lumbosacral vertebral axial fusion internal fixation system with locks, which is characterized in that it includes a porous connection block, a positioning and aiming device and a screw implantation device are respectively installed on the porous connecting block, and the positioning and aiming device is A positioning and aiming mechanism is provided; a fixing device is provided between the porous connection block and the screw implantation device. As an improvement, the porous connection block is evenly provided with through holes, and the positioning and aiming device and the screw implantation device are respectively installed on the through holes on the porous connection block; the porous connection block is provided with through holes The corresponding fastening holes are threaded with fastening bolts. The utility model has the advantages of simple structure, few adjustable parts, simple and convenient operation, small displacement deviation and improved implantation precision.
Description
技术领域：Technical field:
本实用新型涉及一种微创腰骶椎带锁轴向融合内固定系统。The utility model relates to a minimally invasive lumbosacral vertebral lock axial fusion internal fixation system.
背景技术：Background technique:
腰骶椎融合是临床上治疗腰骶椎退变性、不稳等疾病的一种常见手术方式。目前临床常规前路手术易损伤内脏、血管和神经，后路手术对脊柱生理功能干扰大,不符合脊柱的生物力学结构。近十余年来,随着微创理念和科学技术的发展,以腹腔镜前路锁孔、微创小切口、经皮内固定融合等为代表的新型腰椎前路微创手术取得了长足进步。Lumbosacral fusion is a common surgical method for the clinical treatment of lumbosacral degenerative and unstable diseases. At present, conventional clinical anterior surgery is easy to damage viscera, blood vessels and nerves, while posterior surgery greatly interferes with the physiological functions of the spine and does not conform to the biomechanical structure of the spine. Over the past ten years, with the development of minimally invasive concepts and science and technology, the new minimally invasive anterior lumbar surgery represented by laparoscopic anterior keyhole, minimally invasive small incision, percutaneous internal fixation and fusion has made great progress. .
目前国内外对腰骶椎间融合内固定都采用外放性手术，它创伤大，出血多，易感染，康复时间长等。2004年由美国的Cragg等人提出，腰骶椎间轴向融合内固定的微创术是近年来出现的一种新的微创融合内固定技术，并在欧美国家中得到广泛应用，在我国从2006年开始在临床中应用，它具有创伤小，出血少，不易感染，康复快并保留了脊柱的完整结构，它的融合内固定率更高、住院时间短等众多优点。因此，倍受脊柱外科医生的青睐，其临床应用也呈逐年增加的趋势。At present, the internal fixation of lumbosacral intervertebral fusion is performed externally, which involves large trauma, frequent bleeding, easy infection, and long recovery time. In 2004, proposed by Cragg et al. in the United States, minimally invasive internal fixation of lumbosacral intervertebral fusion is a new minimally invasive fusion internal fixation technology that has emerged in recent years, and has been widely used in European and American countries. It has been used clinically since 2006. It has many advantages such as less trauma, less bleeding, less infection, faster recovery and the preservation of the complete structure of the spine, higher fusion and internal fixation rate, and shorter hospital stay. Therefore, it is favored by spine surgeons, and its clinical application is also increasing year by year.
但是在临床研究中发现腰骶椎轴向融合内固定虽具有更好的前屈和侧向稳定性，而在旋转稳定性上较差。为提高抗旋转的稳定性往往需要辅以腰骶椎后路的钉棒系统内固定，这样轴向融合内固定手术和后路钉棒内固定手术，而手术费用昂贵，众多国人难以承担，且该手术操作繁锁，手术时间长，创伤随之增大，出血也增多。However, in clinical studies, it was found that although the internal fixation of the axial fusion of the lumbosacral spine has better flexion and lateral stability, it has poor rotational stability. In order to improve the stability against rotation, it is often necessary to supplement the internal fixation of the lumbosacral spine with the screw-rod system. In this way, the axial fusion internal fixation and the posterior screw-rod internal fixation are expensive and difficult for many Chinese to afford. The operation is cumbersome, the operation time is long, the trauma increases, and the bleeding also increases.
设计出一套合理的腰椎间带锁轴向融合内固定装置，为临床应用以及后期的改进提供理论依据，填补腰椎间带锁轴向融合内固定装置的空白，成为一个亟待解决的问题。It is an urgent problem to design a set of reasonable lumbar intervertebral locking axial fusion internal fixation device to provide a theoretical basis for clinical application and later improvement, and to fill the gap in the lumbar intervertebral intervertebral interlocking axial fusion internal fixation device.
实用新型内容Utility model content
为解决现有技术的不足，本实用新型的目的在于提供一种消除联合后路椎弓根螺钉内固定术以缩短手术时间，降低治疗费用，便于推广并且扩大微创技术治疗范围的一种微创腰骶椎带锁轴向融合内固定系统。In order to solve the deficiencies of the prior art, the purpose of this utility model is to provide a minimally invasive technique that eliminates combined posterior pedicle screw internal fixation to shorten the operation time, reduce treatment costs, facilitate popularization and expand the treatment range of minimally invasive techniques. A lumbosacral locking axial fusion internal fixation system.
为了实现上述目标，本实用新型采用如下的技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
一种微创腰骶椎带锁轴向融合内固定系统，其特征在于：包括多孔连接块，多孔连接块上分别安装有定位瞄准装置和螺钉植入装置，定位瞄准装置上设置有定位瞄准机构；所述多孔连接块与螺钉植入装置之间设置有固定装置。A minimally invasive lumbosacral axial fusion internal fixation system with locks, characterized in that it includes a porous connection block, a positioning and aiming device and a screw implantation device are respectively installed on the porous connecting block, and a positioning and aiming mechanism is arranged on the positioning and aiming device ; There is a fixing device between the porous connection block and the screw implantation device.
作为一种改进，所述多孔连接块上均匀设置有通孔，所述定位瞄准装置和螺钉植入装置分别安装在多孔连接块上的通孔上；所述多孔连接块上设置有与通孔相对应的紧固孔，紧固孔上螺纹连接有紧固螺栓。As an improvement, the porous connection block is uniformly provided with through holes, and the positioning and aiming device and the screw implantation device are respectively installed on the through holes on the porous connection block; the porous connection block is provided with through holes The corresponding fastening holes are threaded with fastening bolts.
作为一种改进，所述螺钉植入装置包括安装在多孔连接块上的植入杆，植入杆为空心设计，在植入杆内插接有植入芯杆，植入芯杆的一端设置有旋转手柄，另一端设置有钉杆连接扣，钉杆连接扣连接有腰骶椎带锁轴向融合内固定器；所述植入杆上设置有定位扣。As an improvement, the screw implantation device includes an implant rod installed on the porous connecting block, the implant rod is hollow in design, an implant core rod is inserted into the implant rod, and one end of the implant core rod is set There is a rotary handle, and the other end is provided with a nail rod connecting buckle, which is connected with a lumbosacral axial fusion internal fixator with a lock; the implant rod is provided with a positioning buckle.
作为一种改进，所述腰骶椎带锁轴向融合内固定器包括与钉杆连接扣连接的轴向固定螺钉，轴向固定螺钉包括螺钉前部和螺钉后部，螺钉前部和螺钉后部上分别设置有轴向通孔，轴向通孔上安装有单向锁定螺钉。As an improvement, the lumbosacral interlocking axial fusion internal fixator includes an axial fixation screw connected with a nail rod connecting buckle, the axial fixation screw includes a screw front part and a screw rear part, and the screw front part and the screw rear part Axial through holes are respectively arranged on the upper parts, and one-way locking screws are installed on the axial through holes.
作为一种改进，所述螺钉前部直径小于螺钉后部直径，螺钉前部和螺钉后部分别设置有螺纹。As an improvement, the diameter of the front part of the screw is smaller than the diameter of the rear part of the screw, and the front part of the screw and the rear part of the screw are respectively provided with threads.
作为一种改进，所述定位瞄准装置包括安装在多孔连接块上的定位瞄准杆，定位瞄准杆上设置有定位瞄准管和植入管，定位瞄准杆通过管定位瞄准锁定扣连接定位瞄准管和植入管，并且定位瞄准管的一端设置有锁定扳手。As an improvement, the positioning and aiming device includes a positioning and aiming rod installed on the porous connection block, the positioning and aiming rod is provided with a positioning and aiming tube and an implant tube, and the positioning and aiming rod is connected to the positioning and aiming tube and the The implant tube is positioned and one end of the sighting tube is provided with a locking wrench.
作为一种改进，所述轴向固定螺钉一端设置有咬合缺口，咬合缺口连接钉杆连接扣。As an improvement, one end of the axial fixing screw is provided with an occlusal notch, and the occlusal notch is connected to the screw rod to connect the buckle.
作为一种改进，所述固定装置包括设置在多孔连接块上的销轴，在植入杆的定位扣内设置有销孔，销轴与销孔相对应。As an improvement, the fixing device includes a pin shaft arranged on the porous connecting block, and a pin hole is provided in the positioning buckle of the implant rod, and the pin shaft corresponds to the pin hole.
由于采用了上述技术方案，与现有技术相比较，本实用新型的有益效果是：Owing to adopting above-mentioned technical scheme, compared with prior art, the beneficial effect of the utility model is:
轴向固定螺钉上设有两个轴向通孔，轴向通孔连接有单向锁定螺钉，单向锁定螺钉设计有小端螺纹、大端螺纹和六柱体。单向锁定螺钉的大端螺纹连接六柱体，在六柱体上套固内六角板手，把单向锁定螺钉旋转入轴向固定螺钉的两个轴向通孔内进行单向交锁固定，小端螺纹旋转交锁于轴向固定螺钉上的两个轴向通孔内进行单向锁定，使之不易退出，具有抗旋转、抗压缩、抗拉伸、抗弯曲功能。The axial fixing screw is provided with two axial through holes, the axial through holes are connected with a one-way locking screw, and the one-way locking screw is designed with a small end thread, a large end thread and a hexagonal body. The large end of the one-way locking screw is threaded to connect the hexagonal body, and the hexagonal wrench is set on the hexagonal body, and the one-way locking screw is rotated into the two axial through holes of the axial fixing screw for one-way interlocking and fixing , The small end thread rotation interlocks in the two axial through holes on the axial fixing screw for one-way locking, making it difficult to withdraw, and has the functions of anti-rotation, anti-compression, anti-stretch, and anti-bending.
轴向融合固定螺钉植入器和定位瞄准植入器组合成腰骶椎带锁轴向融合固定系统，使得轴向固定螺钉经骶椎前入路行轴向融合固定，再用定位瞄准套管对位瞄准，通过植入套管使单向锁定螺钉经皮椎弓根对轴向固定螺钉进行单向锁定固定，以使腰骶椎体融合固定起到抗曲屈、抗旋转、抗压缩的功能作用。Axial fusion fixation screw implanter and positioning aiming implanter are combined into a lumbosacral axial fusion fixation system with lock, so that the axial fixation screw can be axially fused and fixed through the anterior approach of the sacrum, and then the positioning and aiming sleeve can be used Alignment and aiming, one-way locking screw fixed by percutaneous pedicle to axial fixed screw by implanting sleeve, so that fusion and fixation of lumbosacral vertebrae can resist flexion, rotation and compression function.
本实用新型结构简单，使用时可调节部位少，操作简单方便，并且能够保证移位偏差小，提高了植入的精度。The utility model has the advantages of simple structure, few adjustable parts, simple and convenient operation, small displacement deviation and improved implantation precision.
附图说明Description of drawings
图1为本实用新型一种实施例的整体结构示意图；Fig. 1 is the overall structure schematic diagram of a kind of embodiment of the utility model;
图2为本实用新型一种实施例的螺钉植入装置的结构示意图；2 is a schematic structural view of a screw implantation device according to an embodiment of the present invention;
图3为本实用新型一种实施例的腰骶椎带锁轴向融合内固定器结构示意图；Fig. 3 is a structural schematic diagram of a lumbosacral interlocking axial fusion internal fixator according to an embodiment of the present invention;
图4为图1中A部分的局部放大结构示意图；Fig. 4 is the partially enlarged structural schematic diagram of part A in Fig. 1;
图5为图3中轴向固定螺钉的结构示意图；Fig. 5 is a structural schematic diagram of the axial fixing screw in Fig. 3;
图6为图3中单向锁定螺钉的结构示意图；Fig. 6 is a schematic structural view of the one-way locking screw in Fig. 3;
图7为本图3中螺钉后部尾部的内孔的结构示意图。FIG. 7 is a schematic structural view of the inner hole at the rear tail of the screw in FIG. 3 .
具体实施方式Detailed ways
实施例Example
如图1、图2、图3、图4所示，一种微创腰骶椎带锁轴向融合内固定系统，包括多孔连接块1，多孔连接块1上分别安装有定位瞄准装置和螺钉植入装置，定位瞄准装置上设置有定位瞄准机构。所述多孔连接块与螺钉植入装置之间设置有固定装置。固定装置的作用是固定多孔连接块与螺钉植入装置，保证使用时两者的相对位置不会发现变化。As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a minimally invasive lumbosacral vertebral locking axial fusion internal fixation system includes a porous connecting block 1, and positioning and aiming devices and screws are installed on the porous connecting block 1 respectively. The implant device is provided with a positioning and aiming mechanism on the positioning and aiming device. A fixing device is arranged between the porous connection block and the screw implantation device. The function of the fixing device is to fix the porous connection block and the screw implantation device, so as to ensure that the relative positions of the two will not change during use.
在本实施例中，所述多孔连接块1上均匀设置有通孔，所述定位瞄准装置和螺钉植入装置分别安装在多孔连接块上的通孔上。所述多孔连接块1上设置有与通孔相对应的紧固孔14，紧固孔14上螺纹连接有紧固螺栓13。使用时，当定位瞄准装置和螺钉植入装置分别安装在多孔连接块上的通孔时，拧紧紧固螺栓13，将其紧固在多孔连接块1上。In this embodiment, the porous connection block 1 is evenly provided with through holes, and the positioning and aiming device and the screw implantation device are respectively installed on the through holes of the porous connection block. The porous connection block 1 is provided with a fastening hole 14 corresponding to the through hole, and a fastening bolt 13 is threaded on the fastening hole 14 . When in use, when the aiming device and the screw implanting device are respectively installed in the through holes on the porous connecting block, the fastening bolts 13 are tightened to fasten it on the porous connecting block 1 .
所述螺钉植入装置包括安装在多孔连接块1上的植入杆4，植入杆为空心设计，在植入杆内插接有植入芯杆41，植入芯杆41的一端设置有旋转手柄2，另一端设置有钉杆连接扣5。钉杆连接扣5连接有腰骶椎带锁轴向融合内固定器6。所述植入杆4上设置有定位扣3。The screw implantation device includes an implant rod 4 installed on the porous connection block 1, the implant rod is hollow in design, an implant core rod 41 is inserted in the implant rod, and one end of the implant core rod 41 is provided with Rotate the handle 2, and the other end is provided with a nail bar connecting buckle 5. The nail rod connecting buckle 5 is connected with a lumbosacral vertebral lock axial fusion internal fixator 6 . The implant rod 4 is provided with a positioning buckle 3 .
所述腰骶椎带锁轴向融合内固定器6包括与钉杆连接扣5连接的轴向固定螺钉，轴向固定螺钉包括螺钉前部61和螺钉后部62，螺钉前部61和螺钉后部62上分别设置有轴向通孔63，轴向通孔63上安装有单向锁定螺钉7。The lumbosacral interlocking axial fusion internal fixator 6 includes an axial fixation screw connected with the nail rod connecting buckle 5, the axial fixation screw includes a screw front 61 and a screw rear 62, and the screw front 61 and the screw rear Axial through-holes 63 are arranged on the parts 62 respectively, and one-way locking screws 7 are mounted on the axial through-holes 63 .
所述螺钉前部61直径小于螺钉后部直径62，螺钉前部61和螺钉后部62分别设置有螺纹。The diameter of the screw front part 61 is smaller than the screw rear part diameter 62, and the screw front part 61 and the screw rear part 62 are respectively provided with threads.
如图5、图6、图7所示，所述轴向固定螺钉前部61直径小于螺钉后部62直径，螺钉前部61和螺钉后部62分别设置有螺纹。所述螺钉后部62的尾部的内孔65设置有螺纹和内六角，并且设置有咬合缺口64。咬合缺口64的形状可以由实际需要来确定，咬合缺口64的截面形状可以是内六角形状，还可以是矩形。As shown in FIG. 5 , FIG. 6 , and FIG. 7 , the diameter of the front portion 61 of the axial fixing screw is smaller than that of the rear portion 62 of the screw, and the front portion 61 and the rear portion 62 of the screw are respectively provided with threads. The inner hole 65 at the tail portion of the screw rear portion 62 is provided with a screw thread and an inner hexagon, and is provided with an engaging notch 64 . The shape of the engaging notch 64 can be determined according to actual needs, and the cross-sectional shape of the engaging notch 64 can be an inner hexagon or a rectangle.
所述单向锁定螺钉包括六柱体端部71、小端螺纹部分72和大端螺纹部分73，大端螺纹部分73的螺纹为松质骨螺纹，小端螺纹部分72的底部为圆底。所述小端螺纹部分72与轴向固定螺钉上的通孔63螺纹连接。The one-way locking screw includes a hexagonal end 71, a small end threaded portion 72 and a large end threaded portion 73, the thread of the large end threaded portion 73 is a cancellous bone thread, and the bottom of the small end threaded portion 72 is a round bottom. The threaded portion 72 of the small end is threadedly connected with the through hole 63 on the axial fixing screw.
考虑到实际使用的问题，小端螺纹部分72和大端螺纹部分73的长度比在(1:3)-(1:5)之间是最恰当的选择，并且小端螺纹部分72和大端螺纹部分73的直径比为(1:1.5)-(1:2)。同时，螺钉前部61和螺钉后部62的长度比在(1:1.5)-(1:5)之间是最恰当的选择，并且小端螺纹部分62和大端螺纹部分63的直径比为(1:1)-(1:2)。上述比例内，锁定螺钉的抗压缩、抗拉伸、抗弯曲性能是最好的，而且具有最佳的抗旋转稳定性。Considering the problem of actual use, the length ratio of the small end threaded part 72 and the big end threaded part 73 is the most appropriate selection between (1:3)-(1:5), and the small end threaded part 72 and the big end The diameter ratio of the threaded portion 73 is (1:1.5)-(1:2). At the same time, the length ratio of the screw front portion 61 and the screw rear portion 62 is the most appropriate selection between (1:1.5)-(1:5), and the diameter ratio of the small end threaded portion 62 and the large end threaded portion 63 is (1:1)-(1:2). Within the above ratio, the locking screw has the best resistance to compression, tension and bending, and has the best stability against rotation.
所述定位瞄准装置包括安装在多孔连接块1上的定位瞄准杆12，定位瞄准杆12上设置有定位瞄准管9和植入管8，定位瞄准杆12通过管定位瞄准锁定扣11连接定位瞄准管9和植入管8，并且定位瞄准管9的一端设置有锁定扳手10。The positioning and aiming device includes a positioning and aiming rod 12 installed on the porous connection block 1. The positioning and aiming rod 12 is provided with a positioning and aiming tube 9 and an implant tube 8. The positioning and aiming rod 12 is connected to the positioning and aiming rod 11 through the tube positioning and aiming locking buckle 11. Tube 9 and implant tube 8, and one end of positioning sight tube 9 is provided with locking wrench 10.
所述轴向固定螺钉一端设置有咬合缺口，咬合缺口连接钉杆连接扣5。One end of the axial fixing screw is provided with an occlusal notch, and the occlusal notch is connected to the nail rod connecting buckle 5 .
固定装置的方式有多种，其中在本实施例中采用的是销轴的方式。具体结构为：设置在多孔连接块1上的销轴16，在植入杆的定位扣内设置有销孔15，销轴15与销孔16相对应。There are many ways of fixing device, among which the way of pin shaft is adopted in this embodiment. The specific structure is: a pin shaft 16 arranged on the porous connection block 1, a pin hole 15 is arranged in the positioning buckle of the implant rod, and the pin shaft 15 corresponds to the pin hole 16.
使用时，植入杆的前端为轴向固定螺钉，后端为旋转手柄。将植入杆伸入到需要固定的部位，利用植入杆上的旋转手柄旋转将轴向固定螺钉固定在所需部位。接下来将多孔连接块和定位瞄准杆的组合连接在植入杆的后端，并保证多孔连接块上的销轴插入到定位扣上的销孔中，利用定位瞄准杆上的定位瞄准管将单向锁定螺钉连接在轴向固定螺钉上的轴向通孔上。等单向锁定螺钉和轴向固定螺钉固定结束后，依次取下定位瞄准杆和多孔连接块，再通过反向旋转旋转手柄，将植入杆退出，最后单向锁定螺钉和轴向固定螺钉固定在所需部位实现固定。During use, the front end of the implant rod is an axial fixing screw, and the rear end is a rotating handle. Extend the implant rod to the site to be fixed, and use the rotating handle on the implant rod to rotate the axial fixation screw to the desired site. Next, connect the combination of the porous connecting block and the positioning aiming rod to the rear end of the implant rod, and ensure that the pin shaft on the porous connecting block is inserted into the pin hole on the positioning buckle, and use the positioning aiming tube on the positioning aiming rod to place the The one-way locking screw is connected to the axial through hole on the axial fixing screw. After the one-way locking screw and the axial fixing screw are fixed, remove the positioning aiming rod and the porous connection block in sequence, and then reversely rotate the rotating handle to withdraw the implant rod, and finally the one-way locking screw and the axial fixing screw are fixed Fixation is achieved at the desired location.
轴向固定螺钉上设有两个轴向通孔，轴向通孔连接有单向锁定螺钉，单向锁定螺钉设计有小端螺纹、大端螺纹和六柱体。单向锁定螺钉的大端螺纹连接六柱体，在六柱体上套固内六角板手，把单向锁定螺钉旋转入轴向固定螺钉的两个轴向通孔内进行单向交锁固定，小端螺纹旋转交锁于轴向固定螺钉上的两个轴向通孔内进行单向锁定，使之不易退出，具有抗旋转、抗压缩、抗拉伸、抗弯曲功能。The axial fixing screw is provided with two axial through holes, the axial through holes are connected with a one-way locking screw, and the one-way locking screw is designed with a small end thread, a large end thread and a hexagonal body. The large end of the one-way locking screw is threaded to connect the hexagonal body, and the hexagonal wrench is set on the hexagonal body, and the one-way locking screw is rotated into the two axial through holes of the axial fixing screw for one-way interlocking and fixing , The small end thread rotation interlocks in the two axial through holes on the axial fixing screw for one-way locking, making it difficult to withdraw, and has the functions of anti-rotation, anti-compression, anti-stretch, and anti-bending.
轴向融合固定螺钉植入器和定位瞄准植入器组合成腰骶椎带锁轴向融合固定系统，使得轴向固定螺钉经骶椎前入路行轴向融合固定，再用定位瞄准套管对位瞄准，通过植入管使单向锁定螺钉经皮椎弓根对轴向固定螺钉进行单向锁定固定，以使腰骶椎体融合固定起到抗曲屈、抗旋转、抗压缩的功能作用。Axial fusion fixation screw implanter and positioning aiming implanter are combined into a lumbosacral axial fusion fixation system with lock, so that the axial fixation screw can be axially fused and fixed through the anterior approach of the sacrum, and then the positioning and aiming sleeve can be used Alignment and aiming, through the implant tube, the one-way locking screw can be locked and fixed by the percutaneous pedicle to the axial fixed screw, so that the fusion and fixation of the lumbosacral vertebra can play the functions of anti-flexion, anti-rotation, and anti-compression effect.
需要说明的是，上述实施例不以任何形式限制本实用新型，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本实用新型的保护范围内。It should be noted that the above-mentioned embodiments do not limit the utility model in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the utility model.
Claims (8)
1.一种微创腰骶椎带锁轴向融合内固定系统，其特征在于：包括多孔连接块，多孔连接块上分别安装有定位瞄准装置和螺钉植入装置，定位瞄准装置上设置有定位瞄准机构；所述多孔连接块与螺钉植入装置之间设置有固定装置。1. A minimally invasive lumbosacral vertebral lock axial fusion internal fixation system, characterized in that: it comprises a porous connection block, a positioning and aiming device and a screw implantation device are respectively installed on the porous connecting block, and a positioning and aiming device is arranged on the positioning and aiming device. An aiming mechanism; a fixing device is arranged between the porous connection block and the screw implantation device. 2.根据权利要求1中所述的微创腰骶椎带锁轴向融合内固定系统，其特征在于：所述多孔连接块上均匀设置有通孔，所述定位瞄准装置和螺钉植入装置分别安装在多孔连接块上的通孔上；所述多孔连接块上设置有与通孔相对应的紧固孔，紧固孔上螺纹连接有紧固螺栓。2. The minimally invasive lumbosacral axial fusion internal fixation system with locks according to claim 1, characterized in that: through holes are evenly arranged on the porous connecting block, and the positioning and aiming device and the screw implantation device They are respectively installed on the through holes on the porous connection block; fastening holes corresponding to the through holes are arranged on the porous connection block, and fastening bolts are threaded on the fastening holes. 3.根据权利要求2中所述的微创腰骶椎带锁轴向融合内固定系统，其特征在于：所述螺钉植入装置包括安装在多孔连接块上的植入杆，植入杆的一端设置有旋转手柄，另一端设置有钉杆连接扣，钉杆连接扣连接有腰骶椎带锁轴向融合内固定器；所述植入杆上设置有定位扣。3. The minimally invasive lumbosacral vertebral axial fusion internal fixation system with locks according to claim 2, characterized in that: the screw implantation device comprises an implant rod installed on the porous connecting block, the implant rod One end is provided with a rotating handle, and the other end is provided with a nail rod connecting buckle, which is connected with a lumbosacral axial fusion internal fixator with a lock; the implant rod is provided with a positioning buckle. 4.根据权利要求3中所述的微创腰骶椎带锁轴向融合内固定系统，其特征在于：所述腰骶椎带锁轴向融合内固定器包括与钉杆连接扣连接的轴向固定螺钉，轴向固定螺钉包括螺钉前部和螺钉后部，螺钉前部和螺钉后部上分别设置有轴向通孔，轴向通孔上安装有单向锁定螺钉，有轴向通孔的内侧面上设置有内螺纹。4. The minimally invasive lumbosacral interlocking axial fusion internal fixation system according to claim 3, characterized in that: the lumbosacral interlocking axial fusion internal fixator includes a shaft connected with a nail rod connecting buckle To the fixed screw, the axial fixed screw includes the front part of the screw and the rear part of the screw. The front part of the screw and the rear part of the screw are respectively provided with axial through holes. Internal threads are provided on the inner side surface. 5.根据权利要求4中所述的微创腰骶椎带锁轴向融合内固定系统，其特征在于：所述螺钉前部直径小于螺钉后部直径，螺钉前部和螺钉后部分别设置有螺纹。5. The minimally invasive lumbosacral vertebral axial fusion internal fixation system with locking system according to claim 4, characterized in that: the diameter of the front part of the screw is smaller than the diameter of the rear part of the screw, and the front part of the screw and the rear part of the screw are respectively provided with thread. 6.根据权利要求5中所述的微创腰骶椎带锁轴向融合内固定系统，其特征在于：所述定位瞄准装置包括安装在多孔连接块上的定位瞄准杆，定位瞄准杆上设置有定位瞄准管和植入管，定位瞄准杆通过管定位瞄准锁定扣连接定位瞄准管和植入管，并且定位瞄准管的一端设置有锁定扳手。6. The minimally invasive lumbosacral axial fusion internal fixation system with locks according to claim 5, characterized in that: the positioning and aiming device includes a positioning and aiming rod installed on the porous connecting block, and the positioning and aiming rod is set There are a positioning aiming tube and an implant tube, the positioning aiming rod is connected to the positioning aiming tube and the implanting tube through a tube positioning aiming locking buckle, and one end of the positioning aiming tube is provided with a locking wrench. 7.根据权利要求6中所述的微创腰骶椎带锁轴向融合内固定系统，其特征在于：所述轴向固定螺钉一端设置有咬合缺口，咬合缺口连接钉杆连接扣。7. The minimally invasive lumbosacral axial fusion internal fixation system with locks according to claim 6, characterized in that: one end of the axial fixation screw is provided with an occlusal notch, and the occlusal notch is connected to the nail rod and the connecting buckle. 8.根据权利要求7中所述的微创腰骶椎带锁轴向融合内固定系统，其特征在于：所述固定装置包括设置在多孔连接块上的销轴，在植入杆的定位扣内设置有销孔，销轴与销孔相对应。8. The minimally invasive internal fixation system for lumbosacral vertebral axial fusion with locks according to claim 7, characterized in that: said fixation device includes a pin shaft arranged on the porous connecting block, and the positioning buckle on the implant rod A pin hole is arranged inside, and the pin shaft corresponds to the pin hole.
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| CN104146756A (en) * | 2014-08-29 | 2014-11-19 | 南华大学 | Minimally-invasive lumbosacral vertebrae axial fusion inner fixing system with lock |
| CN104146756B (en) * | 2014-08-29 | 2017-08-29 | 南华大学 | A kind of locking axially fusion internal fixation system of minimally invasive lumbosacral spine |
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