CN105232191A - Intervertebral fusion device capable of being braced in transverse direction - Google Patents

Intervertebral fusion device capable of being braced in transverse direction Download PDF

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Publication number
CN105232191A
CN105232191A CN201510756390.XA CN201510756390A CN105232191A CN 105232191 A CN105232191 A CN 105232191A CN 201510756390 A CN201510756390 A CN 201510756390A CN 105232191 A CN105232191 A CN 105232191A
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wall
left
right
front
fusion device
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CN201510756390.XA
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Chinese (zh)
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马信龙
孙晓雷
徐宝山
马剑雄
杨阳
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天津市天津医院
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Abstract

The invention belongs to the technical field of medical apparatus and instrument implants of a department of orthopaedics and particularly relates to an intervertebral fusion device capable of being braced in the transverse direction. The device comprises a hollow main body; the device is characterized in that before being braced, the main body is of a cuboid structure, after being braced, the inner circumference of the main body is of a hexagonal structure, and the main body is of an arc-shaped structure with the middle thickness larger than the thickness of the two ends. The intervertebral fusion device has the advantages that it is guaranteed that a sufficient supporting surface and stable supporting performance are available, the bone grafting area and bone grafting amount are increased to the greatest extent, the bone graft fusion rate is raised, and the problems that an intervertebral fusion device sediments after being implanted, and the intervertebral height is lost are solved thoroughly.

Description

横向可撑开椎间融合装置 Lateral interbody fusion apparatus may be softened

技术领域 FIELD

[0001] 本发明属于骨科医疗器械内置物技术领域,尤其涉及一种横向可撑开椎间融合装置。 [0001] The present invention belongs to the technical field of orthopedic medical device was built, in particular, to a lateral spreader can interbody fusion device.

背景技术 Background technique

[0002] 椎体间融合器与钉棒系统结合在治疗腰椎退行性滑脱、节段性不稳及椎间盘源性疾病所致腰椎失稳引起的下腰痛等病症方面具有良好疗效。 [0002] interbody fusion with screw system incorporated in the treatment of lumbar degenerative spondylolisthesis, segmental instability and diseases caused by spinal instability discogenic low back pain caused by conditions such as having a good effect. 椎体间融合器不仅可以恢复椎间的高度,扩大了椎间孔,同时还加强了前柱的支撑,增加了融合节段的稳定性,防止椎间隙塌陷及假关节形成。 Interbody fusion device can not only restore the intervertebral height, expanding the intervertebral foramen, but also strengthened the anterior column support, increasing the stability of the fusion segments, to prevent disc space collapse and pseudarthrosis. 20世纪40年代,CL0WARD就开始应用椎体间融合方法治疗腰痛,其后,BAK-Cage首先被应用于人体。 1940s, CL0WARD began to apply interbody fusion method for the treatment of low back pain, and thereafter, BAK-Cage is first applied to the human body. 经过多年的发展,各种各样的椎体间融合器应运而生。 After years of development, among a variety of interbody fusion came into being. 而其中常用的为圆柱状螺纹融合器和箱形融合器两大类。 And wherein the two categories of conventional fusion to fusion and a cylindrical threaded box.

[0003] 随着临床应用的推广和理论研究的深入,逐渐发现现有的椎间融合器存在不足。 [0003] With the further promotion of research and clinical application of theory, gradually found deficiencies existing interbody fusion. 例如中国发明专利CN2361245Y公开了一种活动式螺纹状椎间融合器,该融合器由弹性钛合金箱笼和中间聚乙烯髓核组成,弹性钛合金箱笼为圆柱状空心结构,在管状外壁有两侧间断的螺纹。 For example Chinese patent CN2361245Y discloses a movable threaded interbody fusion, the fusion cage is made of an elastic alloy and an intermediate nucleus composed of polyethylene, an elastic cylindrical titanium cage is a hollow structure with an outer wall on both sides of the tubular interrupted thread. 然而,该圆柱状螺纹椎间融合器植入时的旋转切割作用对终板的破坏较大而容易导致塌陷和椎间隙高度下降,从而容易导致椎间融合失败和移位。 However, when the rotation of the cutting action of the cylindrical threaded interbody fusion implant damage to endplates results in large, easy to collapse and intervertebral height decreased, thereby easily resulting in failure and the shift interbody fusion. 与圆柱状螺纹融合器相比,箱形融合器的支撑体为长方体框架,体积更小,容易植入。 Compared with the threaded cylindrical cage, the cage box-shaped supporting body of a rectangular parallelepiped frame, smaller and easier to implant. 例如中国已公开的发明申请CN103263309A,公开了一种融合器,主体部分设有自后下向前上的斜向凹槽,斜向凹槽用于配合椎弓根斜向螺钉以固定融合器。 Chinese invention have been disclosed, for example, application CN103263309A, discloses a cage, the lower body portion is provided with a recess obliquely forward from the rear, obliquely slanted recess for engaging a pedicle screw to secure the cage. 该箱形融合器与终板的接触面光滑,界面固定力弱,不能提供足够的自稳性能。 The box-shaped cage endplate contact surface smooth, fixed interface weak, do not provide sufficient performance homeostasis. 且该融合器需要附加椎弓根螺钉系统进行固定,开放式手术创伤大、出血多,容易损伤脊髓神经,需要进行广泛的肌肉剥离及长时间的牵拉,老年患者难以耐受并增加了手术费用。 The fusion and requires additional pedicle screw fixation system, open surgical trauma, bleeding, easily damaged spinal nerves, muscles need for extensive and long release pull, elderly patients and increases the operation difficult to tolerate cost. 因此微创的方法应用于临床目前已经成为发展趋势。 Therefore, minimally invasive clinical application has now become a trend.

[0004] 在实际使用中,传统类型的椎间融合器还存在着诸多缺陷,例如,术后出现不同程度的沉降以及骨融合率低等问题,最终导致椎们高度丢失。 [0004] In actual use, the traditional type of interbody fusion, there are still many defects, for example, after varying degrees of sedimentation and bone fusion rate and other issues, leading to vertebral height were lost. 近年的研究表明,上述问题很大和椎间融合器的界面稳定性和植骨面积有关。 Recent studies have shown that the great problems of the cage and interface stability and graft related to the area. 因此,需要一种具有足够界面稳定性能又能充分植骨,并可以通过微创入路植入的扩张式腰椎椎间融合器,以使椎间融合手术微创化。 Accordingly, a need for a sufficiently stable performance can sufficiently bone interface, and can be implanted into the passage of the expanding minimally invasive lumbar interbody fusion, intervertebral fusion to minimally invasive surgery.

发明内容 SUMMARY

[0005] 为了克服上述现有技术的不足,本发明的目的是提供一种横向可撑开椎间融合装置,在保证具有足够支撑面和稳定支撑性能的同时,最大限度地增加植骨面积和植骨量,提高植骨融合率,彻底解决椎间融合器植入后沉降、椎间高度丢失的问题。 [0005] In order to overcome the disadvantages of the prior art, an object of the present invention is to provide a laterally stretched intervertebral fusion device having a support surface and a sufficiently stable support while ensuring performance, maximizing bone area and bone volume and improve the fusion rate, completely solve the interbody fusion implant settlement, intervertebral height loss problems.

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

[0007] —种横向可撑开椎间融合装置,包括中空的主体,其特征在于所述主体撑开前为长方体结构,所述主体撑开后内周形状为六边形结构,所述主体为中间厚度大于两端厚度的弧形结构。 [0007] - seed laterally stretched intervertebral fusion device comprising a hollow body, wherein said body front structure spreader rectangular parallelepiped, the rear inner peripheral shape of the expansion body hexagonal structure, the main body an intermediate thickness greater than the thickness of the both ends of the arcuate structure.

[0008] 所述主体包括头部和尾部、以及位于所述头部和尾部之间的右前壁、左前壁、右中壁、左中壁、右后壁、左后壁,所述头部和所述尾部左侧通过所述左前壁、所述左中壁、所述左后壁连接,所述头部和所述尾部右侧通过所述右前壁、所述右中壁、所述右后壁连接。 [0008] The body comprises a right front wall between the head and tail, and the tail portion and said head, left front wall, right middle wall, the left wall, a rear wall and right and left rear wall, said head through the tail portion and the left side of the left front wall, the left wall of the left rear wall connected to said head portion and said tail portion through the right wall of the right front, and right of the wall, said right back wall.

[0009] 所述头部、所述左前壁、右所述前壁组成前体部,所述左中壁、所述右中壁组成中体部,所述尾部、所述左后壁、所述右后壁组成后体部,所述前体部、所述中体部、所述后体部形成所述主体。 [0009] The head of the left front wall, said front wall consisting of a right front portion, in the left wall, in the wall of the right body composition, the tail, the left rear wall, body composition of the right rear wall rear portion, the front body portion, said body portion in the rear portion forming the body member.

[0010] 所述右前壁与所述右中壁之间、所述右中壁与所述右后壁之间、所述左前壁与所述左中壁之间、所述左中壁与所述左后壁之间分别通过连接柱连接,且所述右前壁、所述右中壁、所述右后壁可绕所述连接柱转动,所述左前壁、所述左中壁、所述左后壁可绕所述连接柱转动。 [0010] between the right front and the right wall of the wall, between the wall of the right and the right rear wall, between the front wall and the left wall of the left, the left wall of are connected by the connection between the left column and the rear wall, and the right front wall, the wall of the right, the rear wall of the right may be rotated about said attachment post, said left front wall, said left in wall, the rear wall may be left to rotate about the connecting post.

[0011] 所述头部和所述尾部的厚度小于所述右中壁中心处的厚度。 The thickness of the [0011] head portion and the tail portion is less than a thickness at the center of the right wall.

[0012] 所述头部和所述尾部的厚度小于所述左中壁中心处的厚度。 The thickness of the [0012] head portion and the tail portion is less than the thickness of the wall of the left at the center.

[0013] 所述头部与所述左前壁或所述尾部与所述左后壁连接处到所述左中壁中心处的厚度连续递增,且所述头部与所述左前壁或所述尾部与所述左后壁连接处的厚度到所述左中壁中心处的厚度相差3-4mm。 [0013] the head and the left front wall or the thickness of the tail portion is connected to the rear wall to the left of the left wall of the continuously increasing at the center, and the head and the left or front wall the tail portion of the left posterior wall thickness at the connection to the wall thickness difference at the center of the left 3-4mm.

[0014] 所述主体的上下表面分别设有倒齿结构。 [0014] The upper and lower surface of the body structure are provided with pawls.

[0015] 所述右前壁、所述左前壁、所述右中壁、所述左中壁、所述右后壁、所述左后壁外侧面分别设有贯穿各相应侧壁的植入孔。 [0015] The right front wall, a left front wall, the wall in the right, left in the wall, the rear wall and right, outer side surface of the left rear wall are provided with respective side walls of the implant through into the hole.

[0016] 所述头部设有锁定螺栓。 The [0016] a head provided with a locking bolt.

[0017] 本发明的有益效果是:用六边形结构主体代替了现有技术常用的四边形结构主体,在撑开前呈细长方体,利于通过后外侧较小入的手术入路通道的植入,植入锥间后撑开呈六边形结构,在原来在四个边长的基础上增加了左右两个中壁,因此增加了撑开后整个装置的周长,也就增加了装置内部的植骨量;主体上弧形结构的设计使其更符合人体锥间盘终板的解剖特点,增加了整个装置植入后的稳定性;主体上下表面设置的倒齿结构,用于增加装置与终板的切合度和稳固性;植入孔用于主体撑开后注入植骨材料,以利于植骨材料向装置外部空间的流动,增加后期植骨融合的面积,从而增加后期成骨的稳定性;在头部设计锁定螺栓,在装置呈六边形撑开后,可锁定整个撑开装置,以保证后期植骨材料的注入空间和后期装置的稳定性。 [0017] Advantageous effects of the present invention: instead of a quadrangular common structural body with the prior art hexagonal structure body, in the form of fine parallelepiped distraction prior to, after implantation into the smaller outside through facilitate surgical approach channel after distraction between the implant cone hexagonal structure, on the basis of the original length of the four sides on the left and right walls increases, thereby increasing the overall circumference of the distraction device, it increases the internal apparatus amount of bone; body designed to better match the arcuate configuration of the anatomy of the human intervertebral disc endplate tapered, increases the stability of the whole device is implanted; inverted tooth structure arranged upper and lower surfaces of the body, means for increasing the in line with the degree of stability and endplate; holes for injecting bone graft implant body after distraction, bone graft material to facilitate the flow of the external apparatus to the space, increasing the area of ​​the post-fusion, thus increasing the post into the bone stability; the locking bolt head design, after the expansion device is hexagonal, the entire fixture can be locked to ensure the stability and post-injection means space late graft material. 本发明的装置在保证具有足够支撑面和稳定支撑性能的同时,最大限度地增加了植骨面积和植骨量,提高植骨融合率,彻底解决了现有技术中椎间融合器植入后沉降、椎间高度丢失的问题。 In the apparatus of the present invention is to ensure a sufficient stability and supporting properties of the support surface while maximizing the amount of bone graft and area, increase the fusion rate, solve the prior art interbody fusion implant after settlement, intervertebral height loss problems.

附图说明 BRIEF DESCRIPTION

[0018] 图1为本发明的结构示意图; [0018] FIG. 1 is a schematic view of the structure of the present invention;

[0019] 图2为本发明的展开示意图。 [0019] 2 of the present invention, a schematic expanded FIG.

[0020] 图中,1、主体,2、头部,3、尾部,4、右前壁,5、左前壁,6、右后壁,7、左后壁,8、连接柱,9、倒齿结构,10、植入孔,11、锁定螺栓,12、右中壁,13、左中壁。 [0020] FIG, 1, the main body 2, the head 3, the tail, 4, right front wall 5, a left front wall 6, a right rear wall 7, the left rear wall, 8, connecting post, 9, inverted tooth structure 10, the implant hole 11, the locking bolt 12, in the right wall 13, middle left wall.

具体实施方式 Detailed ways

[0021] 下面结合附图对本发明的一种具体实施方式做出说明。 [0021] DESCRIPTION OF DRAWINGS made to a specific embodiment of the present invention.

[0022] 本发明提供一种横向可撑开椎间融合装置,该装置包括中空的主体,所述主体撑开前为长方体结构,所述主体撑开后内周形状为六边形结构,所述主体为中间厚度大于两端厚度的弧形结构。 [0022] The present invention provides a laterally stretched interbody fusion apparatus, the apparatus comprising a hollow body before the body is cuboid distraction after the distraction body inner peripheral shape of a hexagonal structure, the said intermediate body is a thickness greater than the thickness of the both ends of the arcuate structure. 这种结构不仅增大了植骨面积,而且利于通过后外侧较小入的手术入路通道的植入。 This structure not only increases the area of ​​the bone, but also helps the outside through the small channels of the surgical implant.

[0023] 具体的说,如图1、图2所示,所述主体包括头部和尾部、以及位于所述头部和尾部之间的右前壁、左前壁、右中壁、左中壁、右后壁、左后壁,所述头部和所述尾部左侧通过所述左前壁、所述左中壁、所述左后壁连接,所述头部和所述尾部右侧通过所述右前壁、所述右中壁、所述右后壁连接;所述头部、所述右前壁、所述左前壁形成上椎体,所述尾部、所述右后壁、左后壁形成下椎体,所述上椎体、所述下椎体形成所述主体。 [0023] Specifically, in FIG. 1, shown in the right front body wall comprises a head and tail, and is located between the head and tail, left front wall, a right wall in the left in FIG. 2 wall, a rear wall and right and left rear wall, the head and the tail of the left by the left front wall, the left wall of the left rear wall connecting the head and the tail on the right side through the right front wall, the wall of the right, said right back wall; said head portion, said right front wall, is formed on the front wall of the left vertebral body, said tail portion, said right rear wall the left rear wall formed lower vertebral body, the vertebral body, the vertebral body is formed at said body.

[0024] 所述右前壁与所述右中壁之间、所述右中壁与所述右后壁之间、所述左前壁与所述左中壁之间、所述左中壁与所述左后壁之间分别通过连接柱连接,且所述右前壁、所述右中壁、所述右后壁可绕所述连接柱转动,所述左前壁、所述左中壁、所述左后壁可绕所述连接柱转动。 [0024] between the right front and the right wall of the wall, between the wall of the right and the right rear wall, between the front wall and the left wall of the left, the left wall of are connected by the connection between the left column and the rear wall, and the right front wall, the wall of the right, the rear wall of the right may be rotated about said attachment post, said left front wall, said left in wall, the rear wall may be left to rotate about the connecting post. 便于装置的撑开和闭合。 And closure means to facilitate the expansion.

[0025] 所述头部和所述尾部的厚度小于所述右前壁与所述右后壁连接处的厚度,所述头部和所述尾部的厚度小于所述左前壁与所述左后壁连接处的厚度,所述头部和所述尾部到所述左前壁(右前壁)与所述左后壁(右后壁)连接处的厚度连续递增,且优选地,所述头部与所述左前壁(右前壁)或所述尾部与所述左后壁(右后壁)连接处到所述左中壁中心处的厚度连续递增,且所述头部与所述左前壁(右前壁)或所述尾部与所述左后壁(右后壁)连接处的厚度到所述左中壁(右中壁)中心处的厚度相差3-4_,所指厚度为主体上设有倒齿结构的上下表面之间的距离。 [0025] The thickness of the head and the tail is less than the thickness of the right front wall and a rear wall of the right junction, the thickness of the head and the tail is less than the left with the left front wall the thickness of the rear wall is connected at the head and tail of the front wall to the left (right front wall) and the continuously increasing thickness at the attachment of the left rear wall (right rear wall), and preferably, the front wall thickness of the head with the left (right front wall) and the tail of the left or rear wall (right rear wall) connected to the left at the center of the wall continuously increasing, and the head and the said left front wall (right front wall) or the thickness of the tail portion at the connection of the left rear wall (right rear wall) to the wall of the left (right wall in) thickness at the center of the phase difference 3-4_, referred to the thickness of the upper and lower surfaces with the distance between the inverted tooth structure body. 这种设计更符合人体锥间盘终板的解剖特点,增加了整个装置植入后的稳定性; This design is more in line with the anatomical characteristics of the human intervertebral disc endplates, increasing the stability of the whole device is implanted;

[0026] 所述主体的上下表面分别设有倒齿结构,以增加装置与终板的切合度和稳固性。 [0026] The upper and lower surface of the body structure are provided with pawls, and means to increase the endplates meet degree and stability.

[0027] 所述右前壁、左前壁、右中壁、左中壁、右后壁、左后壁外侧面分别设有贯穿各相应侧壁的植入孔,植入孔垂直于各个侧壁的侧面,用于主体撑开后注入植骨材料,以利于植骨材料向装置外部空间的流动,增加后期植骨融合的面积,从而增加后期成骨的稳定性。 [0027] wall of the right front, left front wall, right middle wall, the left wall, a rear wall and right and left outer side of the rear wall are respectively provided with through holes each respective sidewall implant, the implant hole is perpendicular to the respective side side walls for injecting the body material after distraction and grafting, bone graft material to facilitate the flow to the outside space of the apparatus, increasing the area of ​​the post-fusion, thereby increasing the stability of the post into the bone.

[0028] 所述头部设有锁定螺栓,在装置呈六边形撑开后,可锁定整个撑开装置,以保证后期植骨材料的注入空间和后期装置的稳定性。 [0028] The head portion provided with a locking bolt, the hexagonal form of the distraction device, the entire fixture can be locked to ensure the stability and post-injection means space late graft material.

[0029] 本发明的装置采用可吸收镁合金材料,既保证植入椎间盘后的即时稳定性,又可随着植骨融合的自身骨化加强而被人体吸收。 [0029] The device of the invention with absorbable magnesium alloy material, both to ensure instant stability after implantation of the intervertebral disc, but also as a fusion reinforcing ossification itself is absorbed by the body. 在保证具有足够支撑面和稳定支撑性能的同时,最大限度地增加了植骨面积和植骨量,提高植骨融合率,彻底解决了现有技术中椎间融合器植入后沉降、椎间高度丢失的问题。 To ensure a sufficient stability and supporting properties of the support surface while maximizing the amount of bone graft and area, increase the fusion rate, solve the prior art interbody fusion implant after settling, the interspinous height loss problems.

[0030] 使用时,将本发明的椎间融合器放在终板上,并与终板很好的切合,放置时主体上下表面的倒齿结构与终板接触,且终板位于上椎体和下椎体之间,然后通过手术通道从尾部植入植骨,植骨在植入后由左右前壁、左右侧壁、左右中壁各个侧壁的植入孔流入人体的椎间隙,使得植骨平铺在椎体的终板上,术后三个月,这些植骨将会把装置和上下椎体融合在一起,从而解决人体腰椎不稳定的问题,达到手术目的。 [0030] In use, the cage of the present invention on the endplate, and a good fit with the end plate, the upper and lower surface of the inverted tooth body structure when placed in contact with the end plate and is located on the vertebral body endplate and between the vertebral bodies, and then surgically implanted in the channel from the tail bone, bone left and right from the front wall after implantation, left and right side walls, each of the left and right side walls of the implant wall orifice into the body of the intervertebral space, such that bone in the vertebral end plate tiled, three months after surgery, bone grafting will bring these devices and the upper and lower vertebrae fused together, so as to solve the problem of human lumbar instability, surgery to achieve the purpose.

[0031] 以上对本发明的一个实例进行了详细说明,但所述内容仅为本发明的较佳实施例,不能被认为用于限定本发明的实施范围。 [0031] The foregoing example of the present invention will be described in detail, but only the preferred embodiments of the present invention, the content of the embodiment, not to be considered to define the scope of the present invention. 凡依本发明申请范围所作的均等变化与改进等,均应仍归属于本发明的专利涵盖范围之内。 Where alterations of improvement under this scope of application of the invention made by the patent shall yet fall within the scope of the present invention.

Claims (10)

1.一种横向可撑开椎间融合装置,包括中空的主体,其特征在于所述主体撑开前为长方体结构,所述主体撑开后内周形状为六边形结构,所述主体为中间厚度大于两端厚度的弧形结构。 A transversely stretched intervertebral fusion device comprising a hollow body, wherein the front body structure of a rectangular parallelepiped distraction after the distraction body inner peripheral shape of a hexagonal structure, the main body is intermediate thickness greater than the thickness of the both ends of the arcuate structure.
2.根据权利要求1所述的椎间融合装置,其特征在于所述主体包括头部和尾部、以及位于所述头部和尾部之间的右前壁、左前壁、右中壁、左中壁、右后壁、左后壁,所述头部和所述尾部左侧通过所述左前壁、所述左中壁、所述左后壁连接,所述头部和所述尾部右侧通过所述右前壁、所述右中壁、所述右后壁连接。 The intervertebral fusion device of claim 1, wherein said body comprises a right front wall between the head and tail, and the tail portion and said head, left front wall, a right wall of the left in the wall, a rear wall and right and left rear wall, the head and the tail of the left by the left front wall, the left wall of the left rear wall connected to the head and the tail of the right through the right front side wall, in the wall of the right, the rear wall of the right connection.
3.根据权利要求2所述的椎间融合装置,其特征在于所述头部、所述左前壁、右所述前壁组成前体部,所述左中壁、所述右中壁组成中体部,所述尾部、所述左后壁、所述右后壁组成后体部,所述前体部、所述中体部、所述后体部形成所述主体。 The intervertebral fusion device of claim 2, wherein said head portion, said left front wall, said front wall consisting of a right front portion, in the left wall, in the wall of the right composition the body portion, the tail, the left rear wall, the rear wall of the right rear portion composed of the front body portion, said body portion in the rear portion forming the body member.
4.根据权利要求3所述的椎间融合装置,其特征在于所述右前壁与所述右中壁之间、所述右中壁与所述右后壁之间、所述左前壁与所述左中壁之间、所述左中壁与所述左后壁之间分别通过连接柱连接,且所述右前壁、所述右中壁、所述右后壁可绕所述连接柱转动,所述左前壁、所述左中壁、所述左后壁可绕所述连接柱转动。 4. The intervertebral fusion device according to claim 3, characterized in that between the right front and the right wall of the wall, between the wall of the right and the right rear wall, a left front wall in and between the left wall, in between the left wall and the rear wall of the left column are connected by the connection, and the right front wall, the wall of the right, about the rear wall of the right connection post is rotated, the left front wall, the left wall of the left rear wall may be rotated about the connecting post.
5.根据权利要求1或4所述的椎间融合装置,其特征在于所述头部和所述尾部的厚度小于所述右中壁中心处的厚度。 The intervertebral 1 or claim 4, wherein the fusion device, wherein the thickness of said head portion and said tail portion is less than the thickness at the center in the right wall.
6.根据权利要求5所述的椎间融合装置,其特征在于所述头部和所述尾部的厚度小于所述左中壁中心处的厚度。 5 6. The intervertebral fusion device according to claim, wherein the thickness of said head portion and said tail portion is less than the wall thickness at the center of the left.
7.根据权利要求6所述的椎间融合装置,其特征在于所述头部与所述左前壁或所述尾部与所述左后壁连接处到所述左中壁中心处的厚度连续递增,且所述头部与所述左前壁或所述尾部与所述左后壁连接处的厚度到所述左中壁中心处的厚度相差3-4_。 The intervertebral fusion device of claim 6, wherein said head portion and the thickness of the left front or the left tail portion connected to said rear wall to the left wall at the center of the continuous is incremented, and the head and the tail of the left front wall or back wall thickness at the left to the center of the wall thickness of the phase difference 3-4_ left.
8.根据权利要求1所述的椎间融合装置,其特征在于所述主体的上下表面分别设有倒齿结构。 8. The intervertebral fusion device according to claim 1, wherein the upper and lower surface of the body structure are provided with pawls.
9.根据权利要求2或3或4或6或7所述的椎间融合装置,其特征在于所述右前壁、所述左前壁、所述右中壁、所述左中壁、所述右后壁、所述左后壁外侧面分别设有贯穿各相应侧壁的植入孔。 9. The intervertebral or 4 or 6 or according to claim 2 or 37 of the fusion device, wherein the right front wall, said front wall left, and right in the wall, the wall of the left, the Right above the rear wall, the rear wall of the left outer sides are respectively provided with through-holes of the respective side walls of the implant.
10.根据权利要求2或3或4或6或7所述的椎间融合装置,其特征在于所述头部设有锁定螺栓。 10. The intervertebral or 3 or 4 or 6 or 2 fusion device according to claim 7, wherein said head portion is provided with a locking bolt.
CN201510756390.XA 2015-11-06 2015-11-06 Intervertebral fusion device capable of being braced in transverse direction CN105232191A (en)

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