CN101843519A - Novel cervical vertebra dynamic internal fixing device - Google Patents

Novel cervical vertebra dynamic internal fixing device Download PDF

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Publication number
CN101843519A
CN101843519A CN 201010177111 CN201010177111A CN101843519A CN 101843519 A CN101843519 A CN 101843519A CN 201010177111 CN201010177111 CN 201010177111 CN 201010177111 A CN201010177111 A CN 201010177111A CN 101843519 A CN101843519 A CN 101843519A
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CN
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cervical
artificial
vertebra
body
vertebral
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CN 201010177111
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Chinese (zh)
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CN101843519B (en )
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东人
袁文
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东人
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

Abstract

The invention relates to a novel cervical vertebra dynamic internal fixing device, which comprises an artificial cervical vertebra body and an artificial intervertebral disc. The artificial cervical vertebra body is inlaid on any vertebral body of the third section to the seventh section of partially cut human cervical vertebra. Two screw holes and two clamping grooves are symmetrically arranged on the artificial cervical vertebra body. A vertebral pedicle screw which is fixedly connected with the section of the human cervical vertebra body and a vertebral pedicle is arranged in each screw hole in a penetrating way. A vertebral pedicle screw lock pin cross bar is positioned and clamped between the two clamping grooves. The artificial intervertebral disc is arranged at the upper end and the lower end of the artificial cervical vertebra body, is arranged at a vertebral gap between an upper vertebral body and a lower vertebral body close to the position of the artificial cervical vertebra body, and comprises artificial nucleus pulposus and an artificial end plate. A screw hole is arranged on the artificial end plate. An artificial end plate fixing screw which is fixedly connected with the corresponding section of the artificial cervical vertebra body is arranged in the screw hole in a penetrating way. By adopting the internal fixing device, the invention has the advantages that the surgical invasion is small, the operation is easy and the dynamic fixation of the cervical vertebra after the subtotal excision of an anterior cervical single vertebral body can be realized.

Description

新型颈椎动态内固定装置 The new dynamic cervical fixation means

技术领域 FIELD

[0001] 本发明属临床医学外科技术领域,涉及一种可实现颈椎前路单一椎体次全切除术后手术部位颈椎动态固定的骨科脊柱内固定器械,具体地说,是一种新型颈椎动态内固定 [0001] The present invention belongs to the technical field of surgical clinical medicine, relates to achieve an anterior cervical corpectomy single surgical site after the dynamic stabilization of the cervical spinal orthopedic fixation devices, in particular, is a new dynamic cervical fixation

直O 背景技术 Straight O BACKGROUND

[0002] 颈椎的活动性和稳定性是人类脊柱结构的两个共存特征。 [0002] The activity and stability of the cervical spine is the coexistence of two structural features of a human spine. 一个理想的颈椎内固定装置应该在解决患者病痛的同时可以有效的保留颈椎的生理特性。 A cervical spine fixture ideal physiological characteristics should be retained in cervical effectively while addressing the patient's pain. 这种理想的椎间假体应该可以恢复手术节段生理活动性和稳定性,同时可以长期有效的工作,并且具有良好的耐用性。 This ideal intervertebral prosthesis should be able to resume physical activity and stability of the operated segments, while long-term and effective work, and has good durability.

[0003] 截止到目前,国内外对于颈椎椎间盘退变性疾病行颈前路单一椎体次全切除手术的患者均需一期植骨融合,此类手术已经被证明安全且有效地提供了良好的颈椎稳定性, 但却牺牲了融合节段颈椎的生理活动功能,并且可能引起相邻节段椎间盘退变加快。 [0003] Up to now, at home and abroad for cervical degenerative disc disease row single anterior vertebral body resection surgery patients required a fusion, such surgery has been proven safe and effective in providing a good cervical stability, but at the expense of the physical activity level cervical fusion functionality, and can cause adjacent segment disc degeneration accelerated.

[0004] 目前市场上已存在的颈椎人工椎间盘虽然可以在一定程度上实现部分颈椎生理活动功能,但由于手术方式和人工椎间盘其本身结构设计上的局限性,使得其仍无法实现椎体次全切除后颈椎的动态固定。 [0004] Currently on the market existing cervical artificial disc While it is possible to achieve some cervical physiological activity functions to some extent, but because of the way surgery and artificial disc limitations on the design of its own structure, so that it still can not be achieved Vertebrae dynamic fixation of cervical excision.

发明内容 SUMMARY

[0005] 本发明的目的是克服现有技术的不足或缺陷,提供一种新型颈椎动态内固定装置,实现颈椎前路单一椎体次全切除手术后颈椎的动态固定。 [0005] The object of the present invention is to overcome the disadvantages or drawbacks of the prior art, to provide a new dynamic fixation device cervical spine, cervical dynamic fixed single anterior cervical corpectomy procedure.

[0006] 为了实现上述目的,本发明采用了如下技术方案: [0006] To achieve the above object, the present invention employs the following technical solutions:

[0007] 新型颈椎动态内固定装置,其特征在于,它包括颈椎人工椎体、人工椎间盘; Dynamic fixation device [0007] The novel cervical, characterized in that it comprises an artificial cervical vertebrae, the artificial intervertebral disk;

[0008] 所述的颈椎人工椎体嵌设在已被部分切除的人体颈椎第3至第7节中任意一节的椎体上,该颈椎人工椎体上对称设有一对螺钉孔和一对卡槽,螺钉孔内穿设有与该节段的人体颈椎椎体和椎弓根固定相连的椎弓根螺钉;两卡槽之间定位卡设有一椎弓根螺钉锁钉横杆; Artificial cervical vertebrae [0008] said embedded portion has been cut in the human cervical spine section 3 to 7 of any one of the superior vertebral body, a pair of symmetrical and a pair of screw holes on the cervical vertebrae artificial slot, a screw hole bored with human cervical spine pedicle fixation pedicle screw and connected to the segment; card slot is positioned between two pedicle screw nail provided with a crossbar;

[0009] 所述的人工椎间盘设置于颈椎人工椎体的上下两端,位于与所述颈椎人工椎体所在部位相邻的上下两个椎体之间的椎间隙处,包括依次相连的人工髓核和人工终板,人工终板上设有螺钉孔,该螺钉孔内穿设有与其所对应节段的人体颈椎椎体固定相连的人工终板固定螺钉。 [0009] The artificial intervertebral disk provided at both ends of the upper and lower cervical vertebrae artificial intervertebral space between the adjacent parts of the artificial vertebral body of the cervical spine where the two upper and lower vertebrae, comprising successively coupled to artificial pulp nuclear and artificial endplates artificial endplates with screw holes, the screw hole is provided through the cervical vertebral body fixed section connected to its corresponding end-plate fixing screws manually.

[0010] 上述的颈椎动态固定装置,其中, [0010] The dynamic fixation device of the cervical spine, wherein

[0011] 所述的颈椎人工椎体为前端开口的矩形框体,其上下两个端面居中设有一内凹的圆弧面;该颈椎人工椎体以其圆弧面的垂直中线为界分为前半部、后半部两部分。 Cervical artificial vertebral body according to [0011] of the front opening of the rectangular frame, which is centrally provided with two upper and lower end a concave arcuate surface; the vertical midline cervical artificial vertebral body with its arc surface bounded into the first half, the latter part of two parts.

[0012] 所述颈椎人工椎体的矩形框体左右两侧板上对称设有一对螺钉孔;所述的椎弓根螺钉从螺钉孔内倾斜向外穿出。 The [0012] rectangular frame artificial cervical vertebral plates right and left sides symmetrically provided with a pair of screw holes; said pedicle screw penetration hole is inclined outwardly from the screw.

[0013] 所述颈椎人工椎体上的卡槽对称设置在其左右两侧板的前端内壁上,所述的椎弓根螺钉锁钉横杆定位架设在两卡槽之间;该椎弓根螺钉锁钉横杆内嵌设有一弹性伸缩机构。 [0013] The symmetric slot on cervical artificial vertebral body is provided on the inner wall of the front end of the left and right side plates of said pedicle screw nail bar is positioned to bridge between two slots; the pedicle embedded rail screw nail provided with an elastic telescopic means.

[0014] 所述的弹性伸缩机构包括一长条状壳体、水平设置在该壳体内部两端的活动卡舌、固定连接在两活动卡舌之间的弹簧;两活动卡舌的伸出端定位卡设在所述颈椎人工椎体左右两侧板内壁上的卡槽内。 Elastically extensible mechanism [0014] The housing comprises an elongated, horizontally disposed at both ends of the movable clamping tongue housing interior, a spring fixedly connected between the two tabs of the activity; two movable tabs projecting end the card is provided on the inner wall positioned around the cervical vertebrae side plates artificial slot. [0015] 所述椎弓根螺钉锁钉横杆后半部的左右两侧为一倾斜面,该倾斜面与所述椎弓根螺钉孔的轴线相互垂直。 [0015] After the left and right sides of the pedicle screw nail is a bar half an inclined surface, the inclined surface with the axis of the pedicle screw hole perpendicular to each other.

[0016] 所述人工髓核的底面为圆形,其顶面为与颈椎人工椎体的内凹圆弧面相适配的外凸圆弧面;其圆形底面居中设有一柱状凸台,该凸台的横截面为多边形或齿状面。 [0016] The bottom surface of the artificial nucleus is circular, the top surface is a convex arcuate surface of the artificial cervical vertebrae inner concave surface adapted; its circular bottom surface is provided with a cylindrical projection centrally, the boss cross-section is polygonal or toothed surface.

[0017] 所述的人工终板为圆形或矩形板,板面的中部设有一与人工髓核柱状凸台的外形结构相适配的凹槽,与该凹槽相连的为一与其同轴线的阶梯状圆形孔,该阶梯状圆形孔与终板固定螺钉的外形相适配。 [0017] The end plate is provided with an artificial structure and shape of the artificial nucleus cylindrical boss adapted to the middle of the circular recess or a rectangular plate, the plate surface, the grooves are connected to a coaxial therewith stepped circular hole line, the stepped circular end plate fixing screw holes adapted shape.

[0018] 所述颈椎人工椎体的后半部居中水平设有一方便其安装用的内螺纹孔。 [0018] The rear half of the middle level of the cervical artificial vertebral body is provided with a threaded hole to facilitate the mounting thereof.

[0019] 由于采用了上述的技术方案,本发明与现有技术相比,具有以下的优点和积极效果: [0019] By adopting the technical solution of the present invention compared to the prior art, it has the following advantages and positive effects:

[0020] 本发明涉及的颈椎动态内固定装置主要由其结构形式相互适配的颈椎人工椎体、 人工椎间盘组合构成;同时,分别利用人工终板固定螺钉和椎弓根螺钉使之与相邻节段的人体颈椎椎体以及进行手术次全切除的人体颈椎椎体固定连接,因而,从结构设计上可以保留手术节段生理活动性和稳定性,同时可以长期有效的工作,具有良好的耐用性,实现了颈椎单一椎体次全切除术后的动态固定。 [0020] The dynamic fixation device of the present invention relates to a cervical structure adapted to each other mainly by the artificial cervical vertebrae, the artificial intervertebral disk combinations thereof; at the same time, the use of artificial endplates are fixed pedicle screw and the screw so that the adjacent human cervical vertebrae segments as well as human cervical spine surgery fixed connection subtotal, therefore, from the structural design can keep the physiological activity and stability of the operated segments, while long-term and effective work, has good durability , to achieve a single cervical corpectomy surgery dynamic fixed.

[0021] 该颈椎动态内固定装置具有以下特点: [0021] The cervical dynamic fixation device has the following characteristics:

[0022] (1)对于部分颈椎前路单一颈椎椎体次全切除手术的患者进行手术节段内固定, 同时保留了颈椎的稳定性和活动性,实现动态固定; [0022] (1) For some patients with cervical spine anterior corpectomy single operation performed internal fixation segment, while retaining stability and activity of the cervical spine, dynamic fixation;

[0023] (2)假体与椎体骨性终板接触面积大,减少应力遮挡,可有效防止由于植入物与骨的弹性模量差异导致的手术节段椎体塌陷; [0023] (2) and prosthetic vertebral endplate bone contact area, reducing stress shielding, which can effectively prevent the elastic modulus difference between the implant and the bone was caused by the surgical section vertebral collapse;

[0024] (3)手术创伤小,技术难度不高,便于推广,应用前景广阔。 Small [0024] (3) surgical trauma, technical difficulty is not high, easy to promote broad application prospects.

附图说明 BRIEF DESCRIPTION

[0025] 通过以下实施例并结合其附图的描述,可以进一步理解其发明的目的、具体结构特征和优点。 [0025] by the following description of embodiments thereof in conjunction with the accompanying drawings, it can be further appreciated that the purpose of the invention, the specific structural features and advantages. 附图中, In the drawings,

[0026] 图1是位于人体颈椎正面的本发明颈椎动态内固定装置的结构示意图; [0026] FIG. 1 is a schematic view of the present invention positioned within the dynamic cervical human cervical front fixing device;

[0027] 图2是图1中人工终板的正面放大结构示意图; [0027] FIG. 2 is a schematic front view of FIG. 1 in artificial endplates amplifying structure;

[0028] 图3是图2的仰视结构示意图; [0028] FIG. 3 is a bottom schematic view of the structure of Figure 2;

[0029] 图4是图1中人工终板固定螺钉的正面放大结构示意图; [0029] FIG. 4 is a schematic structural diagram of an artificial endplates enlarged front fixing screw;

[0030] 图5是沿图4中AA线的剖面结构示意图; [0030] FIG. 5 is a schematic cross-sectional structure 4 along line AA;

[0031] 图6是图4的仰视结构示意图; [0031] FIG. 6 is a schematic bottom view of the structure of Figure 4;

[0032] 图7是图1中人工髓核的正面放大结构示意图; [0032] FIG. 7 is a front view showing the prosthetic nucleus of FIG enlarged configuration;

[0033] 图8是图7的俯视结构示意图; [0033] FIG. 8 is a top view of the configuration of FIG 7;

[0034] 图9是图1中E部的居中剖面放大结构示意图;[0035] 图10是图1中人工椎体的正面结构示意图; [0034] FIG. 9 is a cross-sectional center portion E in FIG. 1 a schematic view of an enlarged structure; [0035] FIG. 10 is a schematic front view of FIG. 1 in artificial vertebral body;

[0036] 图11是图10的右视结构示意图; [0036] FIG. 11 is a schematic view of a right view of the structure of FIG 10;

[0037] 图12是图10的俯视结构示意图; [0037] FIG. 12 is a schematic top view of the structure of Figure 10;

[0038] 图13是沿图11中BB线的剖面放大结构示意图; [0038] FIG. 13 is a sectional view along line BB in FIG. 11 a schematic view of an enlarged structure;

[0039] 图14是本发明椎弓根螺钉的外形结构放大示意图; [0039] FIG 14 is an external structure of a pedicle screw of the present invention, an enlarged schematic view;

[0040] 图15是椎弓根螺钉锁钉横杆的正面放大结构示意图; [0040] FIG. 15 is a schematic view of a pedicle screw nail enlarged front cross bar structure;

[0041] 图16是沿图15中EE线的剖面结构示意图; [0041] FIG. 16 is a schematic cross-sectional view of the structure 15 along line EE;

[0042] 图17是沿图16中CC线的剖面结构示意图; [0042] FIG. 17 is a schematic cross-sectional view of structure 16 taken along line CC;

[0043] 图18是图14中的椎弓根螺钉与图13中的颈椎人工椎体的装配结构示意图; [0043] FIG. 18 is a schematic view of the mounting structure in the cervical vertebrae artificial pedicle screws in FIG FIG 1413;

[0044] 图19是图18中颈椎人工椎体的卡槽内装配了图16中的椎弓根螺钉锁钉横杆后的结构示意图; [0044] FIG. 19 is a schematic view of the assembly of FIG. 16 pedicle screw nail into the slot 18 in the crossbar artificial cervical vertebral body;

[0045] 图20是沿图1中DD线的剖面结构示意图。 [0045] FIG. 20 is a schematic cross-sectional structure taken along line DD of FIG. 1.

[0046] 图中: [0046] FIG:

[0047] A-颈椎人工椎体所在节段的人体颈椎椎体,即行颈前路椎体次全切除术时需要手术部分切除的椎体;B、C-相邻的上下两个节段人体颈椎椎体;D-人体颈椎椎弓根;X-椎间隙; When the need for surgical resection of the [0047] A- human cervical artificial cervical spine where the vertebral segment, i.e. row anterior vertebral body corpectomy procedure; B, C- two adjacent upper and lower body sections cervical vertebrae; D- human cervical spine; X- disc space;

[0048] 1-颈椎人工椎体;IA-前半部;IB-后半部;10-内凹的圆弧面;11_椎弓根螺钉孔; Ila-椎弓根螺钉孔轴线;12-卡槽;13-内螺纹孔; [0048] 1- artificial cervical vertebrae; IA-64-front half; IB- rear half; 10- concave circular arc surface; 11_ pedicle screw hole; Ila- pedicle screw bore axis; 12- card grooves; 13- inner threaded bore;

[0049] 2-人工椎间盘;21-人工髓核;21a-圆形的底面;21b_弧形的顶面;211-凸台; 212-多边形或齿状面;22-人工终板;221-凹槽;222-人工终板螺钉孔; [0049] 2- artificial intervertebral disk; artificial nucleus 21; 21A-circular bottom surface; 21b_ arcuate top surface; 211- boss; 212- polygonal or toothed surface; 22- artificial endplate; 221- recess; 222- artificial endplates screw hole;

[0050] 3-椎弓根螺钉;31-椎弓根螺钉的钉尾;3a_椎弓根螺钉轴线; [0050] 3- pedicle screw; 31- pedicle screw tail screws; 3a_ pedicle screw axis;

[0051] 4-人工终板固定螺钉;41-正六边形凹槽;42-外沿凸台; [0051] 4- artificial end plate fixing screws; 41- regular hexagon recess; 42- outer edge of the boss;

[0052] 5-椎弓根螺钉锁钉横杆;5a_左侧倾斜面;5b_右侧倾斜面;51-弹性伸缩机构; 510-长条状壳体;511-活动卡舌;512-弹簧。 [0052] 5- pedicle screw nail bar; 5a_ left inclined surface; 5b_ right inclined surface; elastically extensible mechanism 51; 510- elongated housing; 511- activities tabs; 512- spring.

具体实施方式 detailed description

[0053] 参见图1、20,配合参见图2〜19,本发明涉及的一种颈椎动态内固定装置,主要包括颈椎人工椎体1、人工椎间盘2 ; [0053] Referring to FIG. 1, 20, see FIG mating 2~19, dynamic fixation device of the present invention relates to a cervical spine, including the cervical artificial vertebral body 1, the artificial intervertebral disk 2;

[0054] 如图1、13、20所示,颈椎人工椎体1嵌设在已被部分切除的人体颈椎第3至第7节中任意一节的椎体A上,该颈椎人工椎体1对称设有一对椎弓根螺钉孔11和一对卡槽12, 椎弓根螺钉孔11内倾斜向外穿设有与该节段的人体颈椎椎体A和椎弓根D固定相连的椎弓根螺钉3 ;两卡槽12之间定位卡设有一椎弓根螺钉锁钉横杆5 ; [0054] As shown in FIG. 1,13,20, cervical artificial vertebral body 1 has been cut is embedded in the body portion 3 to the cervical section 7 to any one of the vertebral body A, the cervical vertebrae an artificial a pair of symmetrical pedicle screw holes 11 and a pair of slots 12, the pedicle screw hole 11 is inclined outwardly is provided through the arch pedicle of human cervical vertebrae a and the segment D is connected to a fixed of screws 3; two card slots 12 is positioned between the pedicle screw is provided with a locking nail crossbar 5;

[0055] 如图1、2、3、9所示,人工椎间盘2分别设置于颈椎人工椎体1的上下两端,位于与颈椎人工椎体1所在部位相邻的上下两个节段人体颈椎椎体B、C之间的椎间隙X处;包括依次相连的人工髓核21和人工终板22,两个人工终板22上均设有人工终板螺钉孔222,两个螺钉孔222内分别穿设有一与其所对应节段的人体颈椎椎体B、C固定相连的人工终板固定螺钉4。 [0055] FIG 1,2,3,9, the artificial intervertebral disk 2 are respectively disposed on upper and lower ends of the cervical artificial vertebral body 1, where a portion located adjacent the upper and lower cervical vertebrae artificial two human cervical spine segments B vertebral body, the intervertebral space X between C; 21 and artificial endplates 22, two artificial end plate 22 has screw holes artificial endplates 222, two screw holes comprises an artificial nucleus 222 connected in sequence respectively bored with a human cervical spine its corresponding segments B, C artificial fixedly connected to the end plates of the fixing screw 4.

[0056] 为了解决安装牢固的技术问题,如图2、5、6中所示,本发明在人工终板固定螺钉4 的底部居中设置了一内凹的正六边形凹槽41,并在其底部外圈设置了一与人工终板上的阶梯状圆形人工终板螺钉孔222相适配的外沿凸台42。 [0056] In order to solve the technical problem securely mounted, as shown in FIG. 2,5,6, the present invention is an artificial end plate at the bottom of the fixing screw 4 is provided centrally of a regular hexagon concave groove 41, and its the outer ring is provided with a bottom stepped circular endplate artificial artificial endplates adapted to screw holes 222 of the outer edge of the boss 42.

[0057] 如图10〜13所示,本发明涉及的颈椎人工椎体1为前端开口的矩形框体,其上下两个端面居中设有一内凹的圆弧面10 ;该颈椎人工椎体1以其圆弧面10的垂直中线为界分为前半部1A、后半部IB两部分。 [0057] As shown, the cervical artificial vertebral body according to the present invention is a rectangular frame as the front end opening 10~13, which centrally is provided with two upper and lower end a concave arcuate surface 10; the artificial cervical vertebrae 1 its arcuate surface 10 of the vertical centerline as a boundary is divided into a front half 1A, IB two rear half portion.

[0058] 如图13、18所示,本实施例中,颈椎人工椎体1的左右两侧板上对称设有一对椎弓根螺钉孔11 ;椎弓根螺钉3从螺钉孔11内倾斜向外穿出。 [0058] As shown in FIG 13, 18, in this embodiment, the left and right sides of the cervical vertebrae artificial symmetrically plate 1 is provided with a pedicle screw holes 11; 3 inclined toward the pedicle screw within the screw hole 11 from outside piercing.

[0059] 如图11、13所示,本实施例中,颈椎人工椎体1上的卡槽12对称设置在其前半部IA左右两侧板的内壁上。 [0059] As shown in FIG. 11 and 13, in the present embodiment, slot 1 on the cervical artificial vertebral body 12 symmetrically disposed around the inner wall of the front half portion of the side plates IA. 如图13、15〜17、19所示,椎弓根螺钉锁钉横杆5定位架设在两卡槽12之间;该椎弓根螺钉锁钉横杆5内嵌设有一弹性伸缩机构51。 FIG 13,15~17,19, the pedicle screw nail bar 5 is positioned between two slots 12 set up; the pedicle screw nail provided with a crossbar 5 embedded elastically extensible mechanism 51. [0060] 如图13、15〜17、19所示,本实施例中,弹性伸缩机构51包括一长条状壳体510、 水平活动设置在该壳体510内部两端的活动卡舌511,固定连接在两活动卡舌511之间的弹簧512 ;两活动卡舌511的伸出端定位架设在颈椎人工椎体1前半部IA上的两卡槽12内。 [0060] As shown in FIG 13,15~17,19, in this embodiment, the resilient mechanism 51 includes a telescopic elongated housing 510, activity level activity tab 511 is provided at both ends of the interior of the housing 510, the fixed connected between the two movable spring tabs 511 512; two movable tab 511 protruding end is positioned within the two slots set up on the front half IA 12 1 artificial cervical vertebrae. 利用该弹性伸缩机构51可将椎弓根螺钉锁钉横杆5快速而准确地安装到位,进而有效地缩短手术时间。 With this mechanism 51 may be elastically stretchable pedicle screw nail rail 5 quickly and accurately in place, thereby effectively shorten the operation time.

[0061] 如图14所示,椎弓根螺钉3的钉尾31轴向截面为一环形的倾斜面,该倾斜面与椎弓根螺钉轴线3a之间的夹角α的设置需灵活掌握,会因不同病人的骨骼而略不同。 [0061] 14, 31 of the pedicle screw 3 is an axial section of the end of the nail is an annular inclined surface, the angle α between the inclined surface 3a is provided for an axis of the pedicle screw flexibility, It will vary depending on the patient's bone and slightly different. 本实施例中,该夹角α约为135°。 In this embodiment, the angle α is about 135 °.

[0062] 如图13、16、19所示,椎弓根螺钉锁钉横杆5后半部的左右两侧为一倾斜面5a、5b, 该倾斜面与颈椎人工椎体1上的椎弓根螺钉孔11的轴线Ila相互垂直,恰好平行贴附于安装后的椎弓根螺钉钉尾31的底面,这样,可确保椎弓根螺钉3安装后不会因颈椎的活动而产生位移。 [0062] As shown, the left and right sides of the pedicle screw nail 13,16,19 crossbar 5 is a half of the inclined surfaces 5a, 5b, which arch inclined surface on the cervical vertebrae artificial 1 Ila bottom surface of screws axis perpendicular hole 11, exactly parallel to the mounting post attached to the end of the pedicle screw pilot hole 31, so that the pedicle screw 3 to ensure that the installation is not generated by cervical displacement activity.

[0063] 本实施例中,如图7〜10、12所示,人工髓核21的底面21a为圆形,其顶面21b为与颈椎人工椎体1的内凹圆弧面10相适配的外凸圆弧面;圆形底面21a上居中设有一柱状凸台211,该凸台211的横截面可以是多边形或齿状面212。 [0063] In this embodiment, as shown in FIG 7~10,12, the bottom surface 21a of the artificial nucleus 21 is circular, the top surface 21b is a concave arcuate surface 10 of a cervical artificial vertebral body adapted the outer convex surface; centered on a bottom surface 21a provided with a round pillar-shaped boss 211, the boss 211 of the cross section may be polygonal or toothed surface 212. 本实施例中,凸台211的横截面采用的是如图中所示的齿状面212。 In this embodiment, the cross-section of the boss 211 is employed as shown in the toothed surface 212.

[0064] 如图10、13所示,考虑到安装问题,本发明在颈椎人工椎体1的后半部IB上居中水平设置了一方便其安装用的内螺纹孔13。 [0064] As shown in FIG. 10, 13, considering the installation problems, the present invention is horizontally disposed centrally within a convenient mounting of the threaded bore 13 in which the cervical vertebrae artificial IB 1 of the rear half. 将与之适配的安装工具旋入其内螺纹孔13内即可快速、准确、安全地将其整体安装到位。 The installation tool adapted thereto which is screwed into the internally threaded hole 13 can be quickly, accurately and safely in place in its entirety.

[0065] 本发明涉及的人工终板22是上下平行的圆形板或矩形板。 Artificial [0065] The present invention relates to a vertical end plate 22 is a circular plate or a rectangular parallel plate. 如图1、2、3、9所示, 本实施例中,人工终板22为一上下平行的圆形板,其板面中部设有一与人工髓核柱状凸台211的外形结构相适配的凹槽221 ;与该凹槽221相连的为一与其同轴线的阶梯状圆形螺钉孔222,该阶梯状圆形螺钉孔222与人工终板固定螺钉4的外形相适配,人工终板固定螺钉4从该阶梯状圆形螺钉孔222内垂直穿出。 FIG 1,2,3,9, the present embodiment, the artificial end plate 22 is a circular plate parallel to the vertical embodiments, the middle plate surface which is provided with a cylindrical boss artificial nucleus structure 211 is adapted to the shape groove 221; 221 attached to the recess is a circular stepped thereto coaxial holes 222 of the screw, the stepped screw hole 222 and circular shape artificial endplate is adapted to the fixing screws 4, the end artificial 4 vertical plate fixing screw piercing from the stepped circular screw hole 222.

[0066] 手术时的具体使用步骤: [0066] The specific use of surgical steps:

[0067] 麻醉成功后,病人取仰卧位,肩背部垫小枕,颈部自然仰伸,颈部术区常规消毒铺巾。 After the [0067] the success of anesthesia, the patient supine, shoulder and back cushion small pillow, neck natural Yang Shen, routine disinfection of the surgical drape neck.

[0068] 以需要手术切除的人体颈椎椎体A为中心,作颈前右侧(或左侧)横向(或纵向) 切口,依次切开皮肤、皮下组织、游离皮下间隙,纵行切开颈阔肌,剪开颈血管鞘和内脏鞘之间的联合腱膜,由颈血管鞘和内脏鞘之间钝性分离进入椎前间隙,将气管、食道向左(或右)侧牵开,剪开椎前筋膜,显露需行椎体次全切除的人体颈椎椎体Α、其两侧椎间盘前部以及上下相邻的两椎体B和C。 [0068] In the human body needs surgery A cervical vertebrae as the center, as the anterior right (or left) lateral (or vertical) cuts sequentially cut the skin, subcutaneous tissue, subcutaneous space free, longitudinal neck incision vastus, cut the joint between the fascia and visceral vascular sheath sheath neck, the neck between the visceral and vascular sheath into the sheath prevertebral space blunt separation, the trachea, the esophagus to the left (or right) side of the retractor, shear prevertebral fascia open, revealing the need to line corpectomy human cervical vertebrae Α, before both sides of the disc portion and two vertically adjacent vertebral bodies B and C.

[0069] 在与人体颈椎椎体A相邻的上下椎体B、C前壁钻孔,各拧入1枚椎体撑开钉, Caspar撑开器撑开人体颈椎椎体A上下两侧邻近椎体B、C,以尖刀切除人体颈椎椎体A上下两端椎间盘前部纤维环,以髓核钳取出退变的髓核组织,刮匙刮除终板软骨,以三关节咬骨钳咬除人体颈椎椎体A大部,以冲击式咬骨钳及髓核钳咬除人体颈椎椎体A上下两端椎间隙突入椎管内的椎间盘组织及后纵韧带,用冲击式咬骨钳及磨钻修整骨槽,使与人体颈椎椎体A相邻的上下骨性终板及椎体左右两侧骨槽侧壁平行。 [0069] A cervical vertebrae in the human body adjacent to the upper and lower vertebral bodies B, C front wall bore, screwed into a respective staple vertebral distraction, Caspar distractor body distraction upper and lower sides adjacent to the cervical vertebrae A vertebral B, C, knives to cut the human cervical spine intervertebral a front upper and lower end portions annulus fibrosus, the nucleus pulposus to forceps nucleus degeneration, curettage endplate cartilage, joint with three bite rongeur a most human cervical vertebrae in addition to impact and nucleus clamp rongeur bite than the upper and lower end a human cervical spine intervertebral disc tissue protruding into the spinal canal and the posterior longitudinal ligament, rongeurs by an impact and bone burr trimming groove, so that the body a adjacent to the upper and lower cervical vertebrae bony endplates and vertebral bone left and right sides of the groove parallel to the sidewalls. 大量生理盐水冲洗后,在人体颈椎椎体A相邻的上椎间隙置入人工终板22,通过人工终板螺钉孔222在与人体颈椎椎体A相邻的上位椎体B的下终板钻孔、拧入终板固定螺钉4,将人工终板22固于上位椎体B的下终板;在人体颈椎椎体A相邻的下椎间隙置入人工终板22,通过人工终板螺钉孔222 在与人体颈椎椎体A相邻的下位椎体C的上终板钻孔、拧入终板固定螺钉4,将人工终板22 固于下位椎体C的上终板。 After a large number of normal saline, in the body adjacent to the cervical vertebrae A artificial endplates into the disc space 22, through the artificial end plate screw hole 222 in the lower body and upper cervical vertebrae A adjacent vertebral endplates B drilling, fixing screw screwed into the end plate 4, the artificial end plate 22 fixed at the upper vertebral endplate B; a cervical vertebrae in the human body adjacent to the intervertebral space into the artificial end plate 22, through the artificial endplate a screw hole bored in the end plate 222 and the body adjacent to the cervical vertebrae a vertebral body C, the fixing screw screwed into the end plate 4, the artificial end plate 22 fixed to the lower vertebral endplate C. 将人工髓核21分别卡入上、下人工终板22的凹槽221内,将人工椎体1置入修整好的骨槽中,使人工椎体1的上下内凹圆弧面10与人工髓核21的外凸圆弧形顶面21b相吻合。 The artificial nucleus 21 are respectively engaged into, artificial endplate recess 22122 of the artificial vertebral body bone good dresser tank 1 into the artificial vertebral body of the upper and lower inner concave surface 10 and an artificial arcuate convex top surface 21 of the nucleus 21b coincide. 去除Caspar撑开器及椎体撑开钉,骨蜡封闭钉孔。 Caspar distractor is removed and vertebral distraction nail, nail holes closed with bone wax. 沿人工椎体1 两侧椎弓根螺钉孔11钻孔、攻丝,测深后分别置入定位针1枚,术中透视定位无误后,取出定位针,各置入1枚颈前路椎弓根螺钉3,再次透视定位无误后置入椎弓根螺钉锁钉横杆5。 After the artificial vertebral body along a pedicle screw holes were placed on both sides of the positioning pins 11 after drilling, tapping, sounding an intraoperative fluoroscopy is correct, remove the positioning pins, each one placed anterior vertebral pedicle screw 3, again a perspective pedicle screw insertion and correct positioning of the nail 5 bar.

[0070] 大量生理盐水冲洗,严格止血,检查创腔无明显出血点后逐层缝合,无菌包扎,术毕。 [0070] a large number of physiological saline, strict bleeding, no bleeding after invasive examination cavity sutured, sterile dressing, surgery.

Claims (9)

  1. 新型颈椎动态内固定装置,其特征在于,它包括颈椎人工椎体、人工椎间盘;所述的颈椎人工椎体嵌设在已被部分切除的人体颈椎第3至第7节中任意一节的椎体上,该颈椎人工椎体上对称设有一对螺钉孔和一对卡槽,螺钉孔内穿设有与该节段的人体颈椎椎体和椎弓根固定相连的椎弓根螺钉;两卡槽之间定位卡设有一椎弓根螺钉锁钉横杆;所述的人工椎间盘设置于颈椎人工椎体的上下两端,位于与所述颈椎人工椎体所在部位相邻的上下两个椎体之间的椎间隙处,包括依次相连的人工髓核和人工终板,人工终板上设有螺钉孔,该螺钉孔内穿设有与其所对应节段的人体颈椎椎体固定相连的人工终板固定螺钉。 Cervical new dynamic fixation device, characterized in that it comprises an artificial cervical vertebrae, the artificial disc; the embedded cervical artificial vertebral body has been cut in the part of the human cervical spine 3 to 7 of any one vertebral the body, are symmetrically arranged on the cervical vertebrae of doing a pair of screws and a pair of slot holes, the screw hole through the pedicle screw is provided with the body of the cervical spine pedicle fixedly connected segments; two cards card slot is positioned between the pedicle screw is provided with a locking nail crossbar; artificial disc disposed on the upper and lower ends of the cervical artificial vertebral body, located at the site where the artificial vertebral body of the two vertically adjacent cervical vertebrae between the intervertebral space, comprising successively coupled to artificial nucleus and artificial endplates endplates with the artificial screw holes, the screw hole is provided through artificial and its corresponding segment of human cervical vertebrae end fixedly connected plate screws.
  2. 2.根据权利要求1所述的新型颈椎动态固定装置,其特征在于,所述的颈椎人工椎体为前端开口的矩形框体,其上下两个端面居中设有一内凹的圆弧面;该颈椎人工椎体以其圆弧面的垂直中线为界分为前半部、后半部两部分。 The new dynamic cervical fastening device according to claim 1, wherein said artificial cervical vertebrae of the front opening of a rectangular frame, which is provided with two upper and lower end center a concave arcuate surface; the artificial cervical vertebrae arc surface in its vertical midline as the boundary is divided into a front half, rear half of the two parts.
  3. 3.根据权利要求2所述的新型颈椎动态固定装置,其特征在于,所述颈椎人工椎体的矩形框体左右两侧板上对称设有一对螺钉孔;所述的椎弓根螺钉从螺钉孔内倾斜向外穿出ο 3. New dynamic cervical fixation device according to claim 2, wherein the cervical vertebrae artificial left and right sides of the rectangular frame plate has a pair of symmetrical screw hole; the pedicle screw from the screw outwardly inclined hole piercing ο
  4. 4.根据权利要求1或2或3所述的新型颈椎动态固定装置,其特征在于,所述颈椎人工椎体上的卡槽对称设置在其左右两侧板的前端内壁上,所述的椎弓根螺钉锁钉横杆定位架设在两卡槽之间;该椎弓根螺钉锁钉横杆内嵌设有一弹性伸缩机构。 The new dynamic cervical fixation device 1 or claim 2 or claim 3, wherein said slot symmetry on cervical artificial vertebral body is provided on its front inner surface of the left and right side plates of the vertebral pedicle screw nail bar is positioned to bridge between two slots; the pedicle screw nail provided with a resilient bar embedded telescopic mechanism.
  5. 5.根据权利要求4所述的新型颈椎动态固定装置,其特征在于,所述的弹性伸缩机构包括一长条状壳体、水平设置在该壳体内部两端的活动卡舌、固定连接在两活动卡舌之间的弹簧;两活动卡舌的伸出端定位卡设在所述颈椎人工椎体左右两侧板内壁上的卡槽内。 The new dynamic cervical fastening device according to claim 4, wherein said resilient means comprises a telescoping elongated housing, horizontally movable clamping tongue ends the interior of the housing, is fixedly connected to the two positioning the two activities card tab projecting end of the inner wall is provided on the left and right side plates of the artificial cervical vertebral body slot; spring between the movable tab.
  6. 6.根据权利要求5所述的新型颈椎动态固定装置,其特征在于,所述椎弓根螺钉锁钉横杆后半部的左右两侧为一倾斜面,该倾斜面与所述椎弓根螺钉孔的轴线相互垂直。 The new dynamic cervical fixation device according to claim 5, wherein said right and left sides of the pedicle screw nail bar is half an inclined surface, the inclined surface of the pedicle axis of the screw hole perpendicular to each other.
  7. 7.根据权利要求1或2所述的新型颈椎动态固定装置,其特征在于,所述人工髓核的底面为圆形,其顶面为与颈椎人工椎体的内凹圆弧面相适配的外凸圆弧面;其圆形底面居中设有一柱状凸台,该凸台的横截面为多边形或齿状面。 The new dynamic cervical fixation device according to claim 1, wherein said bottom surface of artificial nucleus is circular, with a top surface of the artificial cervical vertebrae inner concave surface adapted convex circular arc surface; a bottom surface which is centrally provided with a circular cylindrical boss, the boss cross-section is polygonal or toothed surface.
  8. 8.根据权利要求1所述的新型颈椎动态固定装置,其特征在于,所述的人工终板为圆形或矩形板,板面的中部设有一与人工髓核柱状凸台的外形结构相适配的凹槽,与该凹槽相连的为一与其同轴线的阶梯状圆形孔,该阶梯状圆形孔与终板固定螺钉的外形相适配。 The new dynamic cervical fastening device according to claim 1, wherein said artificial endplates circular or rectangular plate, the middle plate surface is provided with a structure and shape of the columnar projection artificial nucleus relative fitness with a groove, a stepped circular bore coaxial with and connected to the groove, the stepped circular end plate fixing screw holes adapted shape.
  9. 9.根据权利要求2所述的新型颈椎动态固定装置,其特征在于,所述颈椎人工椎体的后半部居中水平设有一方便其安装用的内螺纹孔。 9. The new dynamic cervical fixation device according to claim 2, characterized in that the rear half of the cervical artificial vertebral body centrally provided with a horizontal threaded hole to facilitate the mounting thereof.
CN 201010177111 2010-05-18 2010-05-18 Novel cervical vertebra dynamic internal fixing device CN101843519B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105078623A (en) * 2015-09-02 2015-11-25 李志忠 Biological self-locking artificial intervertebral disk system and application thereof
CN106236333A (en) * 2016-10-01 2016-12-21 董谢平 Artificial vertebra by anterior pedicle screw fixation and positioning assembly tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874389A (en) * 1987-12-07 1989-10-17 Downey Ernest L Replacement disc
US5556431A (en) * 1992-03-13 1996-09-17 B+E,Uml U+Ee Ttner-Janz; Karin Intervertebral disc endoprosthesis
WO1999038463A2 (en) * 1998-01-28 1999-08-05 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
WO2001080785A1 (en) * 2000-04-24 2001-11-01 Simpson Nathan S Anterior lumbar interbody fusion implant
CN201719360U (en) * 2010-05-18 2011-01-26 东人 Novel cervical vertebra dynamic internal fixing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874389A (en) * 1987-12-07 1989-10-17 Downey Ernest L Replacement disc
US5556431A (en) * 1992-03-13 1996-09-17 B+E,Uml U+Ee Ttner-Janz; Karin Intervertebral disc endoprosthesis
WO1999038463A2 (en) * 1998-01-28 1999-08-05 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US6342074B1 (en) * 1999-04-30 2002-01-29 Nathan S. Simpson Anterior lumbar interbody fusion implant and method for fusing adjacent vertebrae
WO2001080785A1 (en) * 2000-04-24 2001-11-01 Simpson Nathan S Anterior lumbar interbody fusion implant
CN201719360U (en) * 2010-05-18 2011-01-26 东人 Novel cervical vertebra dynamic internal fixing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105078623A (en) * 2015-09-02 2015-11-25 李志忠 Biological self-locking artificial intervertebral disk system and application thereof
CN105078623B (en) * 2015-09-02 2017-03-22 李志忠 Self-locking artificial disc systems biology and its application
CN106236333A (en) * 2016-10-01 2016-12-21 董谢平 Artificial vertebra by anterior pedicle screw fixation and positioning assembly tool

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