CN104856785B - An intervertebral fusion cage - Google Patents

An intervertebral fusion cage Download PDF

Info

Publication number
CN104856785B
CN104856785B CN201510291682.0A CN201510291682A CN104856785B CN 104856785 B CN104856785 B CN 104856785B CN 201510291682 A CN201510291682 A CN 201510291682A CN 104856785 B CN104856785 B CN 104856785B
Authority
CN
China
Prior art keywords
cage
blade
wall
front
side
Prior art date
Application number
CN201510291682.0A
Other languages
Chinese (zh)
Other versions
CN104856785A (en
Inventor
吴海源
刘云
Original Assignee
北京纳通科技集团有限公司
天津市金兴达实业有限公司
天津正天医疗器械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京纳通科技集团有限公司, 天津市金兴达实业有限公司, 天津正天医疗器械有限公司 filed Critical 北京纳通科技集团有限公司
Priority to CN201510291682.0A priority Critical patent/CN104856785B/en
Publication of CN104856785A publication Critical patent/CN104856785A/en
Application granted granted Critical
Publication of CN104856785B publication Critical patent/CN104856785B/en

Links

Abstract

本发明涉及一种椎间融合器,包括上表面、下表面、侧壁,侧壁包括左侧壁、右侧壁、前壁和后壁。 The present invention relates to an intervertebral fusion cage, comprising an upper surface, a lower surface, side walls including a left side wall, right side wall, a front wall and a rear wall. 本发明的椎间融合器能够提供植入后的初期和长期稳定性,使椎间融合器不会从椎间退出或移动。 The cage of the present invention can provide initial and long-term stability after implantation, so that the cage moves or does not exit from the intervertebral.

Description

一种椎间融合器 An intervertebral fusion cage

技术领域_ FIELD _

[0001] 本发明涉及一种椎间植入物,特别是涉及一种融合器。 [0001] The present invention relates to an intervertebral implant, particularly to a fusion device.

背景技术 Background technique

[0002] 脊椎除了支撑起人体的上半身、头部,并以肋骨、胸骨保护内脏外,最重要的是,脊柱中穿有传达信息的中枢神经,然而,随着年龄的增长,脊柱会慢慢退化,其中最常见的症状之一就是椎间盘退化,椎间盘退化会造成椎体间的稳定性降低,或因丧失水分与弹性造成椎间盘减低、椎间狭窄,对病患带来各种症状,包括神经痛或功能性障碍。 [0002] In addition to prop up the spine of the human upper body, head, and with ribs, sternum protect the internal organs, the most important thing is, wearing a spine in the central nervous convey information, however, with age, the spine will slowly degeneration, one of the most common symptoms are disc degeneration, disc degeneration will result in reduced stability between the vertebrae, or due to loss of moisture and elasticity resulting in reduced intervertebral disc, intervertebral stenosis, patients bring a variety of symptoms, including nerve pain or dysfunction.

[0003] 通常治疗椎间盘退化的方法是利用椎间融合术,椎间融合术的原理是将退化或坏死的椎间盘剥离,然后将椎间融合器利用手术植入患者的椎间,用于撑开并导正椎体间的距离,最后令上下椎间融合在一起,是椎节间更加稳固,但是由于在融合前,椎间融合器在脊柱做后仰弯腰等工作时,容易从椎间滑出,临床应用发现,椎体间融合器松动滑出、椎体间不融合、内植入下沉等并发症,尤其是在双节段椎体间融合,单独使用椎体间融合器松动滑出的比例达到8.35%,所以需要一个能植入后更加稳定地保持在椎间的融合器。 [0003] The method of treating degenerative disc generally is the use of interbody fusion, interbody fusion is the principle of the peeling disc degeneration or necrosis, and the use of interbody fusion intervertebral implant surgery patient, a distraction and guide positive distance between the vertebrae, intervertebral finally make up and down together, between the vertebrae is more stable, but in due time before fusion, interbody fusion bend over backwards to do work in the spine, intervertebral from easy Slide out the clinical application discovery, interbody fusion cage loose slip out, not interbody fusion, within the implant subsidence and other complications, especially in the fusion between vertebral double, alone interbody fusion cage loose slipping ratio reached 8.35%, so the need for an implantable more stably held in the intervertebral cage.

[0004] 而且为了使患者更快的自由活动,希望椎间融合的速度越快越好,现有的椎间融合器在设计时,多数在上下表面设有通孔,在侧壁设有贯穿孔,通孔内植入移植骨,以和上下椎体融合,贯穿孔是为了和周围骨组织连通,增加血运,然而在椎间盘剥离后,周围骨组织无法接触椎间盘侧面,而且椎间盘外围的纤维环本身就缺乏血运,所以即使椎间融合器侧壁设有贯穿孔也不能很好地提供给椎间融合器内部的移植骨足够的血运,影响其融合的速度。 [0004] Further in order to make faster a patient freedom of movement, the faster the desired speed, the better the cage, the cage in the conventional design, most of the upper and lower surfaces provided with a through hole provided through the side wall hole, the through hole implanted bone graft, interbody fusion to the upper and lower through hole and the surrounding bone tissue is to communicate, to increase blood supply, however, the peeling disc, the surrounding bone tissue not in contact with the disc side, and the periphery of the disc fibers lack of blood supply to the ring itself, even if the cage is provided with a through-hole sidewall can not be well supplied to the interior of the intervertebral fusion bone graft sufficient blood supply, which affects the speed of convergence.

发明内容 SUMMARY

[0005]本发明的目的在于提出一种能保持稳定地植入在椎间,并且能够提供血运促使椎间更快融合的融合器。 [0005] The object of the present invention is to provide a stably maintained in the intervertebral implant, to promote blood circulation and provide faster interbody fusion cage.

[0006]为了实现上述目的,本发明采用如下具体技术方案: [0006] To achieve the above object, the present invention employs the following technical solutions specifically:

[0007] —种椎间融合器,包括上表面、下表面、侧壁,贯穿上下表面具有通孔,其特征在于,侧壁包括左侧壁、右侧壁、前壁和后壁,四个侧壁形成的横截面为梯形。 [0007] - species cage, comprising an upper surface, a lower surface, side walls, upper and lower surfaces with through-penetrating holes, wherein the side wall includes a left side wall, right side wall, a front wall and a rear wall, four side wall forming the cross section is trapezoidal.

[0008]进一步地,所述梯形的上边边长为下边边长的二分之一,梯形的四个角为圆形支撑面。 [0008] Further, the top sides of the trapezoid of the long length of one-half Collage, the four corners of the trapezoid circular bearing surface.

[0009]进一步地,所述上、下表面中具有齿状或沟槽状突起,还设置有至少一个尖刺。 [0009] Further, the upper and lower surfaces having a tooth-like or groove-like projections, provided with at least one spike. [0010]进一步地,所述椎间融合器的上、下表面对应于梯形的至少一个圆形支撑面所在位置设有至少一个尖刺。 [0010] Further, the intersomatic cage, the lower surface corresponds to the position of at least a trapezoid where the circular support surface is provided with at least one spike.

[0011 ]进一步地,所述尖刺中具有通道,通道和椎间融合器的内壁相通。 [0011] Furthermore, the spikes having a channel, the channel and the inner walls of the cage communication.

[0012]进一步地,所述前壁和后壁上设有孔,一个可旋转轴安装在椎间融合器前壁和后壁。 [0012] Further, the front and rear wall provided with a hole, a shaft rotatably mounted in the front and rear walls interbody fusion.

[0013]进一步地,所述可旋转轴前后设有外螺纹,椎间融合器前壁和后壁的孔中设有内螺纹,内螺纹和外螺纹可配合旋转,可旋转轴的中间部分为非圆形。 [0013] Further, after the rotation of said externally threaded shaft, interbody fusion front and the rear wall of the hole is provided with an internal thread, internal and external threads can be used with rotation, the intermediate portion of the rotatable shaft non-circular.

[00M]进一步地,所述可旋转轴的非圆形段配合套装了刀片结构,刀片结构可随可旋转轴的转动而转动。 [00M] Further, the non-circular section of the rotatable shaft with a blade package structure, blade structure may rotate with the rotation of the rotatable shaft.

[0015]进一步地,所述刀片结构上设有两个反向对称设置的刀片,刀片一侧为刀刃部分,另一侧为较厚的刀背部分。 [0015] Further, the blade structure provided with two oppositely disposed symmetrically blade, blade is the blade portion, the other side of the knife blade portion thicker.

[0016]进一步地,所述刀片的侧面设有深度不一的沟槽,沟槽的走向为平行于两个刀片的方向。 [0016] Furthermore, the blade side surface of the groove of varying depth provided, parallel to the trench to insert two directions.

[0017]本发明的椎间融合器,既可以用以颈椎椎间融合器,也可用于胸腰椎椎间融合器, 通过植入融合器,使脊椎恢复原有的高度,并将相邻的两个椎节融合成一个整体。 [0017] The cage of the present invention, may be used for cervical fusion cage can also be used for thoracic and lumbar interbody fusion, by implanting the fusion device, the spinal restore the original height, and adjacent two vertebrae fused into a whole.

[0018]本发明的有益效果: [0018] Advantageous effects of the invention:

[0019] (1)本发明的椎间融合器在四个角上设有四个圆形的支撑面,这样在椎间融合器植入后,压力主要是施加在这四个角上,而这四个角为厚度最大的区域,所以形成一个稳固的支撑,防止椎间融合器被压缩或者下陷。 [0019] (1) of the present invention, the cage is provided with four circular support surface at the four corners, so that the interbody fusion implant, the pressure is mainly applied to the four corner, and this region of the four corners of the maximum thickness, forming a stable support to prevent the cage is compressed or depressed.

[0020] (2)本发明的椎间融合器在圆形支撑面上还设有尖刺,尖刺突出于上下表面,从而能在压力下较深地刺入上下椎体中,阻碍椎间融合器前后左右的方面的移动,提供椎间融合器植入的稳定性。 [0020] (2) of the present invention, the cage is also provided with a circular supporting surface of the spikes, the spikes protruding from the upper and lower surfaces, so that it can penetrate deeper at a pressure inferior vertebral bodies, the intervertebral hindering moving around, the fusion aspect, there is provided an interbody fusion implant stability.

[0021] (3)本发明的椎间融合器在圆形支撑面上设置的尖刺,尖刺内部有通道,通道一直连通到椎间融合器内壁,这样椎体中的血运可通过尖刺进入椎间融合器内部的移植骨中, 促进移植骨和上下椎体融合的速度。 [0021] (3) Spiked cage of the present invention is a circular support surface provided, with a channel internal spikes, the communication channel up to the inner wall of the cage, so that blood flow through the vertebral body tip barbed bone graft into the interior of the intervertebral fusion cage, the bone graft to promote the speed of the upper and lower vertebrae fusion.

[0022] (4)本发明的椎间融合器还进一步包括可旋转刺入上下椎体的刀片,刀片在椎间融合器植入后,不仅能通过旋转深刺入上下椎体中,提供植入稳定性,而且刀片上设置的沟槽,可以使椎体中的血运通过沟槽进入椎间融合器内部的移植骨中,促进移植骨和上下椎体融合的速度。 [0022] (4) cage of the present invention further comprises a rotatable blade penetration and inferior vertebral bodies, the intervertebral fusion blade implant, not only by the rotary deep penetration and inferior vertebral bodies, the implant provided the stability, and the groove is provided on the blade, can make the blood flow in the vertebral body by the trench into the interior of the cage in the bone graft, the bone graft to promote the speed of the upper and lower vertebrae fusion.

附图说明 BRIEF DESCRIPTION

[0023]图1为本发明椎间融合器的示意图; [0023] FIG. 1 is a schematic of the cage of the present invention;

[0024]图2为本发明椎间融合器的俯视示意图; [0024] FIG. 2 is a schematic top view of an intervertebral cage of the present invention;

[0025]图3为本发明椎间融合器的通道的示意图; [0025] FIG. 3 is a schematic view of the interbody fusion channel of the present invention;

[0026]图4为本发明刀片结构的示意图; [0026] FIG. 4 is a schematic configuration of a blade of the present invention;

[0027]图5为本发明刀片结构平放时的椎间融合器的示意图; [0027] FIG. 5 is a schematic of the cage when the flat blade structure of the present invention;

[0028]图6为本发明刀片结构竖起时的椎间融合器的示意图。 [0028] FIG. 6 is a schematic view of a blade cage when erected configuration of the present invention.

具体实施方式 Detailed ways

[0029]下面通过具体实施例对本发明的椎间融合器作进一步地详细描述。 [0029] The following embodiments by way of specific embodiments will be described in further detail in the cage of the present invention.

[0030]如图1所述的椎间融合器,为钛合金或者PEEK材料制作,包括上表面1、下表面2、连通上下表面的侧壁3,贯穿上、下表面具有一个通孔4,通孔4的面积不少于融合器上/下表面表面积的60%,用于植入移植骨。 [0030] The intervertebral cage according to FIG. 1, the upper surface of a titanium alloy or PEEK material, comprising a lower surface 2, the upper and lower surfaces of the side walls 3 communicates, through the upper and lower surface having a through-hole 4, fusion through hole 4 is not less than the area / surface area of ​​lower surface 60, a bone graft for implantation.

[0031]在融合器的上表面1和下表面2上设置有突起5,突起5可以为齿状或立体锥形,齿状的两侧齿面形成的斜度可以对称的也可以不对称。 [0031] 1 is provided in the upper surface of the cage 2 and the lower surface of the projection 5, the slope of the protrusion 5 may be formed of tooth-like or three-dimensional tapered tooth flanks may be symmetrical on both sides may be asymmetrical.

[0032] 椎间融合器的侧壁3包括左侧壁32、右侧壁33、前壁34和后壁35。 [0032] The sidewall of the cage 3 comprises a left side wall 32, a right side wall 33, a front wall 34 and rear wall 35. 如图2所示,侧壁3 的四个壁形成的横截面为梯形,从图2来看,后壁35对应的梯形的上边边长为前壁34对应的下边边长的约二分之一。 2, the cross-section of the side wall 3 is formed of four walls trapezoidal, from the point of view of FIG. 2, the rear wall 35, on the edge corresponding to the long trapezoid is about two-thirds the length of the corresponding front wall 34 Collage One. 梯形的四个角为圆形支撑面11,如图2、3所示,圆形支撑面11的直径大于椎间融合器的侧壁3的壁厚,所以前壁34和两侧壁31、32连接处不仅在外壁为圆角, 其内壁部分也突出一个圆角,后壁35和两侧壁32、33连接处不仅在外壁为圆角,其内壁部分也突出一个圆角。 The four corners of the trapezoid is circular bearing surface 11, as shown, the diameter of the circular bearing surface 11 is greater than the side wall 3 of the cage 3 of the wall thickness, the front wall 34 and side walls 31, at the outer wall 32 is connected not only rounded, the inner wall portion is also a rounded projection, a rear wall 35 and side walls 32, 33 are connected only at the rounded outer wall, the inner wall portion is also a rounded projection. 圆形支撑面11是为了在椎间融合器植入后,压力主要是施加在这四个角上,而这四个角为厚度最大的区域,所以形成一个稳固的支撑,防止椎间融合器被压缩或者下陷。 Circular bearing surface 11 to the cage after implantation, the pressure is mainly applied to the four corner, and that the four corners of the largest region thickness, so the formation of a stable support to prevent the interbody fusion cage compressed or subsidence.

[0033] 椎间融合器的上表面1、下表面2上至少一个圆形支撑面11所在位置设有尖刺12。 [0033] The upper surface of the cage 1, lower surface 11 at least 2 positions where a circular bearing surface 12 is provided with spikes. 在本实施例中每个圆形支撑面11所在位置只有一个尖刺12,实际上也可以有其它数量的尖刺。 Examples of each circular bearing surface 11 spike 12 is only one location in the present embodiment, in fact, may have other number of spikes. 尖刺12的高度大于突起5的高度,且位于前壁34和两侧壁31、32连接处的圆形支撑面11 上的尖刺高度略高于后壁35和两侧壁32、33连接处的圆形支撑面11上的尖刺高度,这样在植入时,减少尖刺高度对于植入难度的影响。 12 is greater than the height of the protrusion height of the spikes 5, and is positioned on the spikes 11 of the circular bearing surface of the front wall 34 and side walls 31, 32 slightly above the height of the rear wall connected to two side walls 32, 33 and 35 are connected the height of the spikes on the face of the circular support 11, so that when implanted, to reduce the influence of the height of the spikes of the implant difficult. 尖刺高于上下表面以及齿状突起,从而能在压力下较深地刺入上下椎体中,阻碍椎间融合器前后左右的方面的移动,提供椎间融合器植入的稳定性。 Spiked above upper and lower surfaces and serrations, so that it can penetrate deeper at a pressure inferior vertebral bodies, the intersomatic cage hinder the movement of the front and rear left and right aspect, there is provided an interbody fusion implant stability.

[0034]如图3所示,尖刺中12还具有通道121,通道121和椎间融合器的内壁相通。 [0034] 3, the spikes 12 further includes a channel 121, channel 121 and the inner wall of the cage in communication. 本实施例中通道121位于尖刺12的尖顶上,其边缘为平齐的,应当理解,还可以是其它设计,比如通道121的边缘为锯齿形,又比如通道121位于尖刺12的侧壁上。 Example embodiment the passage 121 is located on the apex of spikes 12, which is flush with the edges, it will be appreciated that other designs may also be, for example, the edges serrated passage 121, passage 121 and side walls such as spikes 12 on. 通道直径为0.1-lmm,优选为0.5mm。 Channel diameter of 0.1-lmm, preferably 0.5mm. 通道121为一个垂直通道,可以理解的是,也可以设计成弯曲状通道,且通道也可以为入口小而出口大的不等径设计。 A vertical passage 121 for the channel will be appreciated that it is also designed as a curved channel and the inlet channel may be small and a large outlet diameter ranging design. 尖刺内部有通道,通道一直连通道椎间融合器内壁,这样椎体中的血运可通过尖刺进入椎间融合器内部的移植骨中,促进移植骨和上下椎体融合的速度。 Internal spiked with a channel, the channel has communication passage inner wall of the cage, so that blood flow through the vertebral body bone graft into the interior of the spike interbody fusion cage to promote bone graft and the speed of the upper and lower vertebrae fusion.

[0035] 如图4-6所示,一个可旋转轴4安装在椎间融合器前壁和后壁,可旋转轴4包括前端41、后端42和中间非圆形段43,在本实施例中前端41可设有外螺纹,后端42也可设有外螺纹,前端41的直径大于后端42的直径。 [0035] Figure 4-6, a rotatable shaft 4 is mounted in the cage front and rear walls, the rotatable shaft 4 includes a front end 41, rear end 42, and intermediate non-circular section 43, the present embodiment 41 embodiment may be provided with an externally threaded front end, a rear end 42 may be provided with an external thread diameter larger than the diameter of the distal end 41 of the rear end 42. 在椎间融合器的前壁34和后壁35上各设有一个孔,孔中设有内螺纹,两个孔的直径和可旋转轴4的前端41和后端42直径配合,内螺纹和外螺纹可配合旋转,需要理解的是,螺纹配合只是一种可选的配合方式,还可以是其它可旋转的配合方式。 In the front wall 34 and back wall of the cage 35 are each provided with a hole which is provided in the front end and a rear end 414 with a diameter of 42, an internally threaded inner thread diameter of the hole and the two rotatable shaft, and rotation can be used with an external thread, is to be understood that the mating thread fit is just an alternative, it may also be other rotatable fit. 可旋转轴4的非圆形段43,在本实施例中具体的为六边形轴。 A non-rotatable shaft 43 of the circular segment 4, a specific embodiment of the present embodiment in a hexagonal shaft.

[0036]可旋转轴4的非圆形段43配合套装了一个刀片结构5,具体为,刀片结构包括两个反向对称设置的刀片51,刀片51通过中间的套装部分52形成一个整体,套装部分52为一个具有内孔的外缘为圆形的结构,当然也可以为其它形状,在本实施例中内孔为一个六边形孔,内孔和可旋转轴4的非圆形段43相配合,使刀片结构5可随可旋转轴4的转动而转动。 [0036] The non-circular section 43 of the rotatable shaft 4 with a blade package structure 5, specifically, the blade structure includes two counter blades 51 are arranged symmetrically, the blade 51 is formed integrally by an intermediate portion of the package 52, package an outer edge of a portion 52 having an inner bore of circular configuration, other shapes may of course, in the present embodiment is a hexagonal bore hole, non-circular section and the bore 43 of the rotatable shaft 4 mate, so that the structure of the blade 5 can be rotated with the rotation of the rotatable shaft 4. 刀片结构5可通过内孔521和非圆形段43的过盈配合固定连接,也可以通过常用的机械结构, 例如卡环等结构固定连接,使刀片结构5在可旋转轴4上只能随之旋转,而不能在轴向移动。 Blade structure 5 can be fixedly connected by an interference fit within the hole 521 and the non-circular section 43, may be by conventional mechanical structure such as a snap ring like structure is fixedly connected to the structure of the blade 5 on the rotatable shaft 4 only with of rotation, but not axial movement. [0037] 刀片结构5上设有的两个反向对称设置的刀片51,其刀片一侧为刀刃部分,另一侧为较厚的刀背部分。 [0037] 5 provided on the blade structure 51 two counter blades arranged symmetrically, which blade is the blade portion, the other side of the knife blade portion thicker. 在刀片的侧面设有深度不一的沟槽53。 Provided on the side of the blade groove 53 of varying depth. 深度靠近刀背部分较深,靠近刀刃部分较浅。 Deeper depths near the knife blade portion, the blade portion close to a shallower. 沟槽53的走向为平行于两个刀片51的方向。 Towards the groove 53 is parallel to the two blades 51 in the direction.

[0038]可旋转轴4的前端41的顶端可设有一个和工具配合的操作孔(未示出),顶端边缘还设有两个凹坑411,凹坑411的位置和刀片结构5上的两个刀片51相对于可旋转轴4的位置一致,这样就可以通过凹坑的位置判断刀片51的位置,可旋转轴4的前端41顶端和椎间融合器前壁34的边缘基本平齐。 [0038] The distal tip 41 of the rotatable shaft 4 can be provided with the operation hole (not shown) and a tool-engaging the top edge 411 is also provided with two recesses, the dimples 411 and the position of the blade structure 5 two blades 51 with respect to the same position of the rotatable shaft 4, so that the position of the blade 51 can be judged by the position of the pit, the front end of the rotatable shaft 414 and the top edge of the cage front wall 34 substantially flush.

[0039]如图5、6所示,为了使可旋转轴4在转动到预定位置后固定住,在椎间融合器前壁34的前侧还设有一个方形凹槽,方形凹槽内可安装一个固定块6,固定块6中间有一个和可旋转轴4的前端41直径相同的孔,还具有和两个凹坑411对应的两个突起61。 [0039] As shown, in order to fix the rotatable shaft 4 upon rotation 5 and 6 to a predetermined position, the front wall 34 of the cage is also provided with a front side of the square groove, square groove may mounting a fixing block 6, the fixed block 6 and a rotatable intermediate shaft has the same diameter as the hole in the front end 414 further includes two projections 61 and two corresponding recesses 411.

[0040]本发明的椎间融合器在植入时,刀片结构5上的两个刀片51为平放的,如图5所示, 此时可旋转轴4的前端41的顶端设有两个凹坑411的位置也是水平的,在椎间融合器植入后,通过工具插入操作孔中旋转可旋转轴4,在本实施例中为逆时针旋转,使刀片51沿刀刃部分插入上下椎体中,旋转的角度直到两个凹坑411的位置为垂直,由于两个凹坑411的位置和刀片的位置是相对应的,医生可以根据两个凹坑411的位置就判断出刀片51已经完全插入上下椎体中,方便在手术中观察判断。 [0040] interbody fusion implant of the present invention, when the two blades on the blade structure 551 is laid flat, as shown in FIG. 5, when the rotatable shaft 41 of the distal tip 4 is provided with two pit position 411 is horizontal, the intervertebral fusion implant, the tool insertion hole by rotating the rotatable shaft 4, rotating counterclockwise in the present embodiment, the blade 51 is inserted into the vertebral body along the vertical edge portion , the angle of rotation until the position of the two vertical recesses 411, due to the location and position of the blades is two pits 411 corresponding to the physician determines the position of the blade 51 two recesses 411 has been completely inserted into the upper and lower vertebral body, to facilitate the observation is determined during surgery. 在刀片51已完全插入上下椎体中后,将固定块6 安装到方形凹槽中,且固定块6的突起61插入到两个凹坑411中,将可旋转轴4的旋转位置固定住,如图6所示。 After the blade 51 is fully inserted into the upper and lower vertebrae, a securing block 6 is attached to the square groove, and the fixing block protrusion 616 is inserted into the two recesses 411, the rotational position of the rotatable shaft 4 is fixed, As shown in Figure 6. 由于固定块6的外边缘为方形,所以在安装到凹槽内后,不会发生转动,从而固定块6上的突起61也位于固定位置,抵住可旋转轴4,使其不会再旋转,从而将刀片结构5的位置固定住,使刀片51 —直保持在上下椎体中。 Since the outer edge of the securing block 6 is square, so after installation into the groove, the rotation does not occur, so that the projections 61 on the fixing block 6 is also in a fixed position against the rotatable shaft 4, so that it does not rotate again , so that the position of the blade of the fixed structure 5, the blade 51-- been maintained in the upper and lower vertebral bodies. 由于沟槽53的走向为平行于两个刀片51 的方向,在刀片51刺入上下椎体后,椎体内的血液以及其他骨组织可沿沟槽53进入椎间融合器的通孔4中的植入的移植骨内。 After the trench 53 is due to a direction parallel to the two blades 51, the piercing blade 51 and inferior vertebral bodies, blood, and other bone tissue within the vertebral body can enter the cage through holes 53 along the groove 4 implanted within a bone graft.

[0041]本发明的椎间融合器上设置的可旋转刺入上下椎体的刀片,刀片在椎间融合器植入后,不仅能通过旋转深刺入上下椎体中,提供植入稳定性,而且刀片上设置的沟槽,可以使椎体中的血运通过沟槽进入椎间融合器内部的移植骨中,促进移植骨和上下椎体融合的速度。 [0041] piercing rotatably provided on the upper and lower vertebral interbody fusion device of the present invention blade after the blade interbody fusion implant, not only by the rotary deep penetration and inferior vertebral bodies, the implant to provide stability , and the groove is provided on the blade, you can make the blood flow in the vertebral body by the bone graft into the interior of the trench intervertebral fusion cage, the bone graft to promote the speed of the upper and lower vertebrae fusion.

Claims (6)

1. 一种椎间融合器,包括上表面、下表面、侧壁,贯穿上下表面具有通孔,其特征在于, 侧壁包括左侧壁、右侧壁、前壁和后壁,四个侧壁形成的横截面为梯形,所述梯形的上边边长为下边边长的二分之一,所述梯形的四个角为圆形支撑面,所述圆形支撑面的直径大于所述椎间融合器侧壁的壁厚,所述前壁和两侧壁的连接处的外壁为圆角,所述连接处的内壁也为一个突出的圆角,所述上、下表面中设置至少一个尖刺,所述尖刺位于椎间融合器的上、下表面对应于梯形的至少一个圆形支撑面所在位置,所述尖刺中具有通道,通道和椎间融合器的内壁相通。 An intervertebral fusion device, comprising an upper surface, a lower surface, side walls, upper and lower surfaces with through-penetrating holes, wherein the side wall includes a left side wall, right side wall, a front wall and a rear wall, four side wall formed cross section is trapezoidal, the trapezoid, on the edge length of one-half length of the Collage, the four corners of the trapezoid circular bearing surface, the diameter of the circular support surface is greater than the vertebral fusion between the rounded corners of the wall thickness of the side wall, an outer wall connected at the front and side walls are rounded, the inner wall of the connector is also a prominent, said upper and lower surfaces, at least one spikes, the spikes located on the cage, the lower surface of the trapezoid corresponding to the position where the at least one circular supporting surface, said spikes having a channel, the channel and the inner walls of the cage communication.
2. 如权利要求1所述的椎间融合器,其特征在于,所述前壁和后壁上设有孔,一个可旋转轴安装在椎间融合器前壁和后壁之间。 2. The intervertebral cage according to claim 1, wherein said front and rear walls provided with a hole, a shaft rotatably mounted between the front and rear walls interbody fusion.
3. 如权利要求2所述的椎间融合器,其特征在于,所述可旋转轴前后设有外螺纹,椎间融合器前壁和后壁的孔中设有内螺纹,内螺纹和外螺纹可配合旋转,可旋转轴的中间部分为非圆形。 3. The intervertebral cage according to claim 2, characterized in that, before and after the rotatable shaft provided with an external thread hole interbody fusion in the front and rear walls is provided with an internal thread, the internal thread, and an outer mating threads may rotate the intermediate portion of the rotatable shaft is non-circular.
4. 如权利要求3所述的椎间融合器,其特征在于,所述可旋转轴的非圆形段配合套装了刀片结构,刀片结构可随可旋转轴的转动而转动。 4. The intervertebral cage according to claim 3, wherein the non-circular section of the rotatable shaft with a blade package structure, blade structure may rotate with the rotation of the rotatable shaft.
5. 如权利要求4所述的椎间融合器,其特征在于,所述刀片结构上设有两个反向对称设置的刀片,刀片一侧为刀刃部分,另一侧为较厚的刀背部分。 5. The intervertebral cage according to claim 4, characterized in that the blade has two oppositely disposed symmetrically on said blade structure, one side edge portion of the blade, the other side of the blade back portion thicker .
6. 如权利要求5所述的椎间融合器,其特征在于,所述刀片的侧面设有深度不一的沟槽,沟槽的走向为平行于两个刀片的方向。 5 according to the cage as claimed in claim 6, wherein said insert side surface groove of varying depth disposed towards the trench parallel to the directions of the two blades.
CN201510291682.0A 2015-06-02 2015-06-02 An intervertebral fusion cage CN104856785B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510291682.0A CN104856785B (en) 2015-06-02 2015-06-02 An intervertebral fusion cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510291682.0A CN104856785B (en) 2015-06-02 2015-06-02 An intervertebral fusion cage

Publications (2)

Publication Number Publication Date
CN104856785A CN104856785A (en) 2015-08-26
CN104856785B true CN104856785B (en) 2017-11-07

Family

ID=53903272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510291682.0A CN104856785B (en) 2015-06-02 2015-06-02 An intervertebral fusion cage

Country Status (1)

Country Link
CN (1) CN104856785B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6923830B2 (en) * 2002-02-02 2005-08-02 Gary K. Michelson Spinal fusion implant having deployable bone engaging projections
US8142508B1 (en) * 2007-07-02 2012-03-27 Theken Spine, Llc Spinal cage having deployable member which is removable
US8968405B2 (en) * 2009-01-20 2015-03-03 Incite Innovation Llc Interbody fusion device and method of operation
CN201510380U (en) * 2009-09-29 2010-06-23 郭谦 Self-stabilizing anterior cervical interbody fusion cage
WO2013008111A1 (en) * 2011-07-14 2013-01-17 Kamil Bal Fixation system for spinal cages
CN103300947A (en) * 2013-05-22 2013-09-18 广州聚生生物科技有限公司 Anterior cervical interbody fusion cage

Also Published As

Publication number Publication date
CN104856785A (en) 2015-08-26

Similar Documents

Publication Publication Date Title
US9486149B2 (en) Method and apparatus for minimally invasive insertion of intervertebral implants
US8083744B2 (en) Devices and methods for implanting fusion cages
CA2802131C (en) System and method for protecting neurovascular structures
US9763801B2 (en) Transcorporeal spinal decompression and repair systems and related methods
AU738696B2 (en) Method and instrumentation for implant insertion
US8591588B2 (en) Spinal fixation plate
CN102843995B (en) Arcuate member and the fixing member intervertebral implant
US8617245B2 (en) Intervertebral implant having extendable bone fixation members
US4878915A (en) Surgical prosthetic implant facilitating vertebral interbody fusion
US8162981B2 (en) Method and apparatus for spinal facet fusion
US8361126B2 (en) Bone plate system
AU689766B2 (en) Implantable anchoring element and anchoring assembly for prostheses and the like and method of implanting such elements and assemblies
US9757154B2 (en) Systems and methods for fusing a sacroiliac joint and anchoring an orthopedic appliance
US6063088A (en) Method and instrumentation for implant insertion
JP5203610B2 (en) Vertebral facet joint prosthesis and fixing method thereof
US6540753B2 (en) Instrumentation for implant insertion
US9517077B2 (en) Vertebral facet joint drill and method of use
JP3821875B2 (en) Adhesion device and a driving device
US9271765B2 (en) Vertebral facet joint fusion implant and method for fusion
US9044277B2 (en) Pedicular facet fusion screw with plate
AU2009340030B2 (en) Interspinous process implants having deployable engagement arms
EP2361570A2 (en) Flanged interbody fusion device
ES2431120T3 (en) Straight introduction device which adopts a curved configuration
US8142508B1 (en) Spinal cage having deployable member which is removable
JP5379305B2 (en) System and method for facet joint treatment

Legal Events

Date Code Title Description
C06 Publication
EXSB Decision made by sipo to initiate substantive examination
GR01