CN101601604B - Behind-the-neck transverse connector with lower opening - Google Patents

Behind-the-neck transverse connector with lower opening Download PDF

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Publication number
CN101601604B
CN101601604B CN 200910088323 CN200910088323A CN101601604B CN 101601604 B CN101601604 B CN 101601604B CN 200910088323 CN200910088323 CN 200910088323 CN 200910088323 A CN200910088323 A CN 200910088323A CN 101601604 B CN101601604 B CN 101601604B
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transverse
connection
part
body
upper
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CN 200910088323
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Chinese (zh)
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CN101601604A (en )
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郭谦
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郭谦
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Abstract

The invention discloses a behind-the-neck transverse connector with a lower opening, which consists of two transverse connection components and a transverse-passing transverse connection bar which are mutually connected. Each transverse connection component comprises a transverse connection body, a pressing sleeve and a jack screw, wherein the upper part of the transverse connection body is an upper adapting head part with a threaded hole; seen from the front side, two sides of the lower part of the upper adapting head part are provided with elastic clips for clasping longitudinal connection bars; seen from the side direction, the middle part of the transverse connection body is provided with a through hole for the transverse connection bar to pass; the pressing sleeve is sleeved on the elastic clips at two sides of the transverse connection body; and the jack screw is screwed into the threaded hole of the upper adapting head part of the transverse connection body to lock each part ofthe transverse connection components. The behind-the-neck transverse connector with low incisure and the lower opening can overcome the defects of the prior art, is convenient for a doctor to carry out orthopaedic operation of the neck, and relatively reduces the wound to a patient.

Description

下开口颈后横联器 The neck opening cross-linking is

技术领域 FIELD

[0001] 本发明涉及一种医疗器械技术,尤其涉及一种用于骨科脊柱内固定器系统的颈后横联器。 [0001] The present invention relates to a medical device, particularly, to the neck cross-linking is for orthopedic spinal fixation system.

背景技术 Background technique

[0002] 横联器是脊柱钉棒系统的重要组成部分。 [0002] The cross-linking is an important part of pedicle screw fixation systems. 在临床上的重要作用是用于连接两个椎弓根连接棒,以使该系统构成一个“井”字形的稳定结构。 An important role in clinical for connecting two pedicle connecting rods, so that the system constitutes a stable structure "well" shape.

[0003] 目前市场上见到的颈椎后路钉棒系统的横联器,主要有两种。 [0003] It is seen on the market posterior cervical fixation system of cross-linking, the main two. 一种结构如图6所示:由五个部件组成,两个钩形体100,200,两个顶丝300,400,一个连接螺栓500。 A configuration shown in FIG. 6: consists of five components, two hooks shaped body 100, 200, two top wire 300, 400, a connecting bolt 500. 钩形体100中间有滑槽,钩形体200也有螺纹,通过螺栓500将钩形体100和200连成一个整体。 Middle hook body chute 100, the hook 200 also has a threaded body, the hook body 500 by bolts 100 and 200 as a single unit. 临床手术时,纵向连接棒(颈部矫形手术中称之为椎弓根连接棒)由钩形体的侧开口卡入, 再由螺栓500在滑槽600内移动到合适位置后紧固而定位。 Clinical surgery, longitudinal connecting rods (called pedicle neck orthopedic surgery in the connecting rod) into the side opening of the hook body, and then by a bolt 500 to move within the chute 600 positioned after fastening place.

[0004] 还有一种横联器,名称为“用在脊柱矫正装置上的横向连接器”(专利申请号: 95102021.8)的专利申请,如图7所示,其包括可与纵向件连接的两个连接件,一个长形板垂直于纵向件并将两个连接件相互连接。 [0004] Another cross-linking, a name "as used in spinal correction transverse connector device" (patent number: 95102021.8) Patent Application, 7, comprising two longitudinal members connected with a connecting member, an elongated plate perpendicular to the longitudinal member and two connecting members connected to each other. 各连接件均包括有包容纵向件的钩部,上部固定的螺钉将纵向件夹紧到连接件的钩部上。 Each connecting member comprises a hook portion inclusive of the longitudinal member, the upper fixing screw longitudinal member to clamp the hook portion of the connecting member.

[0005] 上述的两种横向连接器均属于侧开口方式,存在的缺陷是:①由于是侧开口结构, 故手术卡入椎弓根连接棒时,需要横向多向外侧扩一定距离后再下移、横向回移至可卡住椎弓根连接棒。 [0005] The connectors are two lateral side opening part of the way, the defects are: ① Since the structure is the side opening, so that the operation card into the pedicle connecting rods, requires multiple laterally outward and then expand at a certain distance move, move back to the transverse rod connection may be stuck pedicle. 不仅操作不方便,还会使得创伤口相对要大些,创伤口的恢复时间会更长。 Not only inconvenient to operate, but also makes a wound is relatively bigger, the mouth of the trauma recovery time will be longer. ②图6所示的横联器,置于椎体间的中央部分板宽较大,由于颈椎锥间距小,手术中不得不去掉一个颈椎后突,从而降低了手术效果。 ② shown in FIG. 6 a cross-linked, the central portion of the plate disposed between the large width of the vertebral body, due to the small spacing of the taper cervical, removed after surgery had a cervical projection, thereby reducing the effect of surgery. 图7所示的横联器是一种高切迹的横联器,在临床上使用不便。 Cross-linked shown in FIG. 7 is a cross-linked high-notch filter, the inconvenience in clinical use.

发明内容 SUMMARY

[0006] 本发明的目的是提供一种低切迹、下开口的颈后横联器,其可克服现有技术的不足,方便医生颈部矫形手术的操作。 [0006] The object of the present invention is to provide a low-notch, the neck opening cross-linking device, which can overcome the disadvantages of the prior art, easy to operate the doctor neck orthopedic surgery.

[0007] 为实现上述目的,本发明采取以下设计方案: [0007] To achieve the above object, the present invention adopts the following design:

[0008] 一种下开口颈后横联器,由二个横联组件和一个横向穿过横联组件的连接棒组成; [0008] A neck at the opening cross-linked, a cross-linked by two connecting rod assembly and a laterally across the cross-linked composition component;

[0009] 所述的横联组件包括有: [0009] The cross-linking assembly comprising:

[0010] 一个横联主体,其上部是具有带螺纹孔的上承接头部;从正面看,上承接头部的下方双侧具有用于抱紧椎弓根连接棒的弹性卡子(门字形双瓣);从侧向看,横联主体的中部有一个供横联棒穿过的通孔;所述弹性卡子是一种具有外锥的弹性卡头。 [0010] a cross-linked body, the upper portion having a threaded bore receiving the head; viewed from the front, below the double-sided upper receiving head has an elastic clip to hold the rod connecting pedicle (bis-shaped gate flap); viewed from the side, cross-linking the central body a through hole for passing the rod cross-linking; the resilient clip is a cone having an outer collet.

[0011] 一个压紧套,装配时,使横联主体的弹性卡子内收,同时将压紧套套到弹性卡子上; [0011] a compression sleeve, during assembly, so that the cross-linked adduction resilient clip body, while the condom to the elastic pressing clamp;

[0012] 一个顶丝,可拧入横联主体上部的螺纹孔内。 [0012] a top wire, can be screwed into a threaded hole with an upper portion of a cross-body. [0013] 所述的横联棒是一个截面边长不大于3X3mm的方形棒,或是一个截面最大直径不大于3mm的圆棒或椭圆棒。 Cross-linking rod [0013] is a cross-section of the edge of the square bar 3X3mm to grow, or a maximum cross-sectional diameter of no more than 3mm rod or elliptical rod. 横联主体中部供横联棒穿过的通孔应与相应棒的形状一致, 方形棒对应方形孔为佳。 Through hole for the central body cross-linked through cross-linking rods should be consistent with the corresponding rod-like shape, preferably square bar corresponding to the square hole.

[0014] 本发明的优点是: [0014] The advantage of the present invention are:

[0015] 1、由于各部件的构型经精心设计,使得各部件的连接无需复杂定位,固定有效而牢靠。 [0015] 1, due to the configuration of each component was designed so that the connection of the components without complicated positioning and fixing effective and reliable.

[0016] 2、由于下开口的设计,使得操作简便,且使得创伤口相对要小些,恢复时间缩短, 减轻了病人的痛苦。 [0016] 2, due to the design of the lower opening, so simple, so that a wound and relatively smaller, shorter recovery time and reduce the suffering of the patients.

[0017] 3、夹紧方式的独特设计,使得可以增加矫正力,既稳定,又可实现矫正力度的微调。 [0017] 3, the unique design of the clamping, makes it possible to increase the corrective force, both stable, while achieving a fine adjustment of the intensity correction.

[0018] 4、横向连接部分由现有技术中的板式结构改为横联棒式设计,且横联棒是一支截面不大于3X3mm的方棒,其尺寸适于从颈椎椎间穿过,从而使颈椎后路钉棒系统更加完 [0018] 4, to a lateral connecting portion plate structure of the prior art cross-linking rod design, and the cross-linking rod is not greater than a cross-sectional 3X3mm square bar, which is adapted to pass through the cervical intervertebral size, so that the more posterior cervical fixation system End

industry

口ο Mouth ο

[0019] 5.此结构为低切迹,更适合人体颈椎后路使用。 [0019] 5. This structure is a notch lower, posterior cervical more suitable for human use. 附图说明 BRIEF DESCRIPTION

[0020] 图1为本发明下开口颈后横联器结构示意图(使用状态下)。 Neck structure diagram (use state) the opening cross-linked [0020] FIG. 1 of the present invention.

[0021] 图2为下开口颈后横联器的横联组件的结构示意图(分解结构)。 [0021] FIG. 2 is a schematic view of the structure (WBS) posterior lateral cross-linked with an assembly opening.

[0022] 图3为横联组件的顶丝结构示意图(a为主视图;b为俯视图)。 Top wire structure diagram (a front view; B is a top view) [0022] FIG. 3 is a cross-linking component.

[0023] 图4为横联组件的压紧套结构示意图(a为主剖视图;b为俯视图)。 [0023] FIG. 4 is a schematic cross-linked structure of the pressing sleeve component (a main cross-sectional view; B is a top view).

[0024] 图5为横联组件的横联主体结构示意图(a为主视图;b为侧视图;c为俯视图;d 为局剖的主视图;e为立体等轴视图)。 [0024] FIG. 5 is a schematic cross-linked structure cross-linked body component (a front view; B is a side view; C is a plan view; d is a partial sectional front view of the; E is a perspective isometric view).

[0025] 图6为现有技术中的一横联器结构示意图(a为主视,b为俯视)。 [0025] FIG. 6 is a schematic view of a cross-linked structure of the prior art (a main view, b is a top view).

[0026] 图7为现有技术中的另一横联器结构示意图(a为使用状态参考图,b为连接件立体结构示意图)。 [0026] FIG. 7 is another schematic cross-linked structure of the prior art (a use state with reference to FIG, b is a perspective schematic structural view of the connector).

[0027] 图8为本发明下开口颈后横联器与现有技术的侧开口对比示意图(a为本发明技术,b为现有技术)。 Opening the [0027] present invention. FIG. 8 is posterior cross-linking schematic comparison with the prior art side opening (a technique of the present invention, b is the prior art).

[0028] 下面结合附图及具体实施例对本发明做进一步详细说明: 具体实施方式 Described in more detail [0028] below in conjunction with the accompanying drawings and specific embodiments of the present invention do: DETAILED DESCRIPTION

[0029] 参阅图1所示,本发明下开口颈后横联器由二个横联组件1和横向穿过横联组件连接孔(通孔)的一根横联棒2相互连接组成。 [0029] Referring to FIG. 1, the neck opening of the cross-linking is cross-linking present invention consists of two components 1 and a lateral cross-linking assembly connected through holes (vias) with a cross-rod 2 interconnecting components.

[0030] 参见图2,所述的各横联组件均由顶丝11、横联主体12和压紧套13三个部件组成。 [0030] Referring to Figure 2, each of said cross-linked by assembly 11, a cross-linking body 12 and the pressing jacket 13 is composed of three top wire member.

[0031] 参见图5所示,所述横联主体12具有一上承接头部,从正面看,上承接头部的下方双侧具有用于抱紧纵向连接棒(即图1所示的部件3)的弹性卡子121,参见图5a);从侧向看,横联主体的中部有一个供横联棒穿过的通孔122,参见图5b);所述上承接头部的上壁开有供顶丝(或螺栓、螺丝)拧入的带有螺纹的通孔123;参见图5c)、图5d);为更方便理解,图5e)给出了该部件的立体结构参考图。 [0031] Referring to FIG. 5, the cross-linked body 12 having an upper receiving head, viewed from the front, underneath the receiving head has a double-sided hold longitudinal connecting rod (i.e., the components shown in FIG. 3) an elastic clip 121, see FIG. 5A); viewed from the side, cross-linking the central body a through hole through which the cross rod 122 for linking, see FIG. 5B); receiving a head of said upper wall opening a through hole for the threaded jack screws (or bolts, screws) threaded into 123; see FIG. 5C), FIG. 5D); more convenient for understanding, FIG. 5e) shows a perspective view of the structure of the reference member. [0032] 所述弹性卡子121底端具有一外凸的弹性卡头,图5所示实施例中,该外凸的弹性卡头纵剖面呈近似“〈”型,带有外锥斜面1211,内壁形态与所抱紧的纵向连接棒(图1所示的部件3)外壁形状相匹配。 The [0032] bottom end of the resilient clip 121 having a convex collet, the embodiment shown in FIG. 5, the collet convex longitudinal section has a substantially "<" shape, having outer tapered face 1211, morphology and hold the inner wall of the longitudinal connecting rod (member shown in FIG. 13) matches the shape of the outer wall. 现钉棒系统使用的纵向连接棒一般截面呈圆形,故为更好的实现本发明各部件的连接配合,所述弹性卡子外凸的弹性卡头内侧呈圆弧状为佳。 Now longitudinal connecting rod fixation system generally used in circular cross-section, so as to achieve a better connection with the various components of the present invention, the resilient elastic clamp chuck inner convex arc shape preferably. 当钉棒系统使用的纵向连接棒截面形态改变时,该弹性卡子外凸的弹性卡头内侧亦可以是对应呈其他形状,如为多边形状。 When the sectional form of the longitudinal connecting rod fixation system used to change the elastic clip convex inner collet may also correspond to other shapes such as a polygonal shape.

[0033] 所述供横联棒穿过的通孔122亦应与连接棒的形状相匹配。 [0033] The cross-linking rod through hole for passing the shape of the connecting rod 122 should match. 横联棒应是一个截面边长或直径不大于3mm的棒,比如3X 3mm的方形棒或直径不大于3mm的圆形棒,亦可是最大直径不大于3mm的椭圆棒等等,所述供横联棒穿过的通孔即呈对应形状。 Cross-linking rods should be a cross-sectional side length or diameter of no more than 3mm rod, square bar such as 3X or not more than 3mm 3mm diameter circular rods, also the maximum diameter no greater than 3mm oval stick, etc., for the transverse a through hole through which the rod that is associated with as a corresponding shape. 本实施例中设计的横联棒截面是一个3 X 3mm的方形棒(较佳截面尺寸)。 Cross-linking the rod-sectional embodiment of the present embodiment is designed in a 3 X 3mm square bars (preferably cross-sectional dimension).

[0034] 所述压紧套13,套设在横联主体两侧的弹性卡子121上。 [0034] The compression sleeve 13, the clip sleeve 121 is provided on the elastic body on both sides of the cross-linking. 本发明在对部件构型的处理上也做了大量创造性的设计,为使压紧套的紧固作用更有效而牢靠,对压紧套的接合面也做了充分的考虑。 The present invention is in the treatment of a part of the configuration of creative design also done a lot more effective and reliable fastening action of the pressing sleeve, the pressing sleeve of the joint surface be made full consideration. 1、将压紧套的底端面对应纵向件的形状设计呈内凹槽状,本实施例中其为圆弧状,以与弹性卡头呈圆弧的内侧配合放置纵向连接棒,并将其更好的紧固。 1, the bottom face of the pressing sleeve should be shaped to form a longitudinal recess shaped member, which embodiment is arcuate, with the collet inner arc shape mating longitudinal connecting rod of the present embodiment is placed, and better fastening. 2、压紧套底端内侧131呈圆锥斜面,使得着力点是面接触而不是点或线接触(上述外锥的弹性卡头具有一大直径锥面;本压紧套下面内侧对应的是一小直径的锥面,套紧时压紧套的小直径锥面向下压弹性卡子的大直径锥面),这样即连接牢固而可靠,又相对耐磨损,使用寿命长,其具体构造形式可以参见图4所示。 2, the bottom end of the pressing sleeve inner conical inclined surface 131, so that the focus is surface contact instead of point or line contact (the outer cone of the collet having a tapered large diameter; corresponding to the inside is present a compression set below a small diameter tapered surface, the compression sleeve when the sleeve is tight small diameter tapered surface of the clip elastically pressed downward tapered large diameter), i.e., so that a firm and reliable connection, but also the relative wear resistance, long service life, which can be specifically configured to form Referring to FIG. 4.

[0035] 所述的顶丝11用于锁紧横联组件的各单元部件,该顶丝11既可采用标准件紧密螺纹,亦可根据需要特制加工而成,如图3所示,结构为螺纹连接,有微调能力。 Top wire units 11 for locking the cross-linked member assembly [0035] according to the standard jack screw member 11 can tightly threaded, also required special processing, shown in Figure 3, the structure threaded connection, fine-tuning capability.

[0036] 上述各实施例可在不脱离本发明的范围下加以若干变化,故以上的说明所包含及附图中所示的结构应视为例示性,而非用以限制本发明的申请专利保护范围。 [0036] each of the above embodiments may be several variations in the embodiments without departing from the scope of the present invention, it is included in the above described exemplary embodiment and the structure shown in the drawings should be considered, not to limit the present invention patent protected range.

[0037] 本发明下开口颈后横联器的工作原理是:横联主体12与压紧套组装后形成一个近似的弹性夹头。 [0037] The principle of opening the neck is cross-linked under the present invention are: cross-linked body formed after the collet 12 with a similar compression sleeve assembly. 使用时,横联主体12中部的通孔122内装上横联棒,当拧入顶丝11时, 顶丝向下压横联棒,横联棒再推压紧套,由于锥度的作用,横联主体的两侧弹性卡头上的外锥面受压,卡头必然会向内收,同时下开口牢牢卡住并抱紧钉棒系统的纵向连接棒,达到横向牢固连接的目的。 When used, the through hole 12 in the middle of the cross-linking cross-linking rod body 122 on the interior, when the top 11 is screwed into the wire, press down the top wire rod cross-linking, cross-linking rod pushed compaction sleeve, due to the taper of the cross an outer tapered surface on both sides with elastic locking head pressure receiving body, bound inwardly to close the chuck, while the opening and stuck firmly hold fixation system of longitudinal connecting rods, firmly connected to the transverse purpose.

[0038] 使用中,先将横联棒穿入两个横联组件的通孔内,调整两个横联组件的适当距离, 使弹性卡子的两个下开口对准椎弓根连接棒,使用持棒钳向下按,卡口即卡在椎弓根连接棒上,再拧顶丝,此时,顶丝向下压横联棒,横联棒向下压压紧套,压紧套下部是锥面(指压紧套下面的小直径锥面),由于锥度作用,弹性卡子下部的大直径锥面必然内收,抱紧钉棒系统的椎弓根连接棒。 [0038] In use, the first two cross-linking cross-linking rod assembly penetrates through hole appropriately adjusted from two cross-linking components, the connecting rod is aligned openings at two pedicle resilient clips using press down the rod holding forceps, i.e. bayonet connecting rod stuck in the pedicle, and then tighten the top wire, at this time, press down the top wire rod cross-linking, cross-linking rod pressing sleeve is pressed down, the lower part of the pressing sleeve a tapered surface (pressing means sets the following small-diameter tapered surface), since the effect of the taper, the lower portion of the large-diameter tapered surface of the elastic clip necessarily adduction, hold pedicle screw system of connecting rods.

[0039] 由上述的操作使用过程可以看出:本发明下开口颈后横联器的行进轨迹是直线向下,如图8a)所示,在椎弓根连接棒按入的部位只需再向外扩张1距离(1距离相当于弹性卡子的壁厚,因其可以做的很精细,可以限制在1〜2mm内),故给术者不会造成太大的创伤面,恢复起来会更快,所以说本发明是低切迹,更适合人体颈椎后路使用。 [0039] As can be seen from the above operational use: the neck opening cross-linked under the present invention's trajectory is a straight line downward travel, as shown in FIG 8a), the pedicle portion of the connecting rod by simply re expand outwardly a distance (a distance corresponding to the thickness of the elastic clip, because it can be done very fine, can be limited in 1~2mm), so that a surgeon will not cause too much of the wound surface, it will be more recovery fast, so that the present invention is a low-notch, posterior cervical more suitable for human use. 而现有技术则不然,至少要在椎弓根连接棒外侧扩展一段L(L距离相当于横联器部件的整体宽度,因其必须要加工出可容纳椎弓根连接棒的钩形部,所以做的较宽,甚至达到Icm以上),且还需向下移动H距离(相当于底钩弧的弓高)到侧开口与椎弓根连接棒对合的位置,很显然,在人体颈椎这样的位置上横向加纵向的错动会给术者造成更大的创伤面。 While the prior art is not the case, to extend a period of at least L (L a distance corresponding to the overall width of the cross-linked member, because of its hook-shaped part must be machined to receive the connecting rod in the pedicle pedicle outer connecting rod, so do the wider, more even to Icm), and the need to move downwardly a distance H (corresponding to the high end of the hook arc bow) to the side opening of the connecting rod and the pedicle engaging position, it is clear that the human cervical spine such a position transversely movable in longitudinal dislocation will result in greater trauma surgeon surface.

[0040] 综上所述,作为一个医疗器械,本发明下开口颈后横联器设计得更合理、更科学、 [0040] In summary, as a medical device, the present invention is cross-linked neck opening is designed to be more rational, more scientific,

更完善。 Better.

Claims (5)

  1. 一种下开口颈后横联器,由二个横联组件和横向穿过的一根横联棒相互连接组成;其特征在于:所述的各横联组件包括有:一个横联主体,其上部是具有带螺纹孔的上承接头部;从正面看,上承接头部的下方双侧具有用于抱紧椎弓根连接棒的弹性卡子;从侧向看,横联主体的中部有一个供横联棒穿过的通孔;一个压紧套,套在横联主体双侧弹性卡子上;一个顶丝,拧入横联主体上承接头部的螺纹孔内,以用于锁紧横联组件的各部件。 One kind of the neck opening cross-linked, a cross-linking components and by two transverse rods passing a cross-linking composition are interconnected; characterized in that: each of said cross-linking assembly comprising: a cross-linked body, which an upper portion having a threaded bore receiving the head; viewed from the front, below the double-sided upper receiving head has an elastic clip to hold the rod connecting pedicle; viewed from the side, the central body has a cross-linked cross-linked through hole for passing the rod; a compression sleeve, fitted over the body-sided cross-linked elastic clip; a top wire, screwed into the threaded holes receiving the cross-linking of the head body, for locking a cross each member of the associated components.
  2. 2.根据权利要求1所述的下开口颈后横联器,其特征在于:所述弹性卡子下部为具有外锥的弹性卡头。 The lower opening of the neck cross-linking device of claim 1, wherein: said resilient clip having a lower outer cone of the collet.
  3. 3.根据权利要求2所述的下开口颈后横联器,其特征在于:所述具有外锥的弹性卡头具有一大直径锥面;所述的压紧套下面内侧对应有一小直径的锥面,套紧时压紧套的小直径锥面向下压弹性卡子的大直径锥面。 The lower opening of the neck of a cross-linking device of claim 2, wherein: said collet has a tapered outer conical surface having a large diameter; a compression set below the corresponding inner diameter of a small tapered surface, the compression sleeve when the sleeve is tightened down on the small-diameter tapered surface of large diameter tapered surface of the resilient clip.
  4. 4.根据权利要求1所述的下开口颈后横联器,其特征在于:所述的横联棒是一个截面边长不大于3X3mm的方形棒,或是一个截面最大直径不大于3mm的圆棒或椭圆棒。 According to claim lower neck opening cross-linking of claim 1, wherein: said cross-linking is a cross-sectional side rods grow to 3X3mm square bar or a round cross section is not larger than the maximum diameter of 3mm rod or elliptical rod.
  5. 5.根据权利要求1所述的下开口颈后横联器,其特征在于:所述的横联棒是一个截面为3X3mm的方形棒;所述供横联棒穿过的通孔为与之匹配的方孔。 The lower neck opening cross-linked claim claim 1, wherein: said linking rod is a cross section of square bar 3X3mm; cross-linking of the supply through hole through which the rod is thereto square hole match.
CN 200910088323 2009-06-26 2009-06-26 Behind-the-neck transverse connector with lower opening CN101601604B (en)

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CN1087806A (en) 1992-10-22 1994-06-15 丹内克医学有限公司 Spinal rod transverse connector for supporting vertebral fixation elements
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FR2736535A1 (en) 1995-07-10 1997-01-17 Martin Jean Jacques Spinal osteosynthesis device to immobilise portion of spine e.g. in case of pathological degeneration between vertebrae
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CN201453354U (en) 2009-06-26 2010-05-12 郭谦 Cervical vertebral canal posterior bottom-opening transverse connector

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