CN202191381U - Adjustable intervertebral fusion device - Google Patents

Adjustable intervertebral fusion device Download PDF

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Publication number
CN202191381U
CN202191381U CN 201120243502 CN201120243502U CN202191381U CN 202191381 U CN202191381 U CN 202191381U CN 201120243502 CN201120243502 CN 201120243502 CN 201120243502 U CN201120243502 U CN 201120243502U CN 202191381 U CN202191381 U CN 202191381U
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CN
China
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front
portion
rear
support section
front support
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CN 201120243502
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Chinese (zh)
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丁亮华
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丁亮华
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Priority to CN 201120243502 priority Critical patent/CN202191381U/en
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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 utility model discloses an adjustable intervertebral fusion device, which comprises a fusion device main body and a stud. The fusion device main body which is a basically rectangular integral member is composed of a rear support part, a first front support segment equipped on the upper part of a front end face of the rear support part and a second front support segment equipped on the lower part of the front end face of the rear support part. A front inner chamber of the fusion device main body is formed between the first front support segment and the second front support segment. The vertical distance of the front inner chamber gradually increases from the front to the back. The maximum distance of the front inner chamber is identical to the external diameter of the stud front. A central through screw hole matching the stud is equipped inside the rear support part. When the stud is pushed from the back to the front, the first front support segment and the second front support segment are pressed and slowly unfolded with the advancement of the stud due to the gradual distance decrease of the front inner chamber of the fusion device main body. When the intervertebral fusion device is in practical use, the unfolding degree of the front support segments can be controlled according to the distance of a vertebral body to be expanded until the unfolding degree right accords with an operation requirement.

Description

一种可调式椎间融合器 An adjustable intervertebral fusion formula

技术领域 FIELD

[0001] 本实用新型涉及医疗器械技术领域,具体涉及一种用于脊柱椎间融合术的可调式椎间融合器。 [0001] The present invention relates to a technical field of medical devices, particularly relates to an adjustable spinal interbody fusion for the interbody fusion.

背景技术 Background technique

[0002] 腰椎退行性滑脱、节段性不稳、椎间盘源性疾病、外伤性腰椎滑脱所致腰椎失稳引起的下腰痛、肢体运动感觉障碍,对非手术治疗无效者一般都需行腰椎固定融合术。 [0002] lumbar degenerative spondylolisthesis, segmental instability, discogenic disease, lower back pain caused by traumatic spondylolisthesis lumbar instability caused limb motor and sensory disorders, non-surgical treatment fails generally takes lumbar fixation fusion. 1986年Badgy和Kuslich设计出适用于人体的椎间融合器,并用于治疗退变性下腰痛。 1986 Badgy and Kuslich design suitable for human intervertebral fusion device, and for the treatment of degenerative low back pain. 椎间融合器的应用能维持椎间隙的高度,回复前中柱的支撑、增加椎间孔容量、解除神经根受压、防止椎间隙塌陷及假关节形成。 Application of the cage can maintain the disc space height, the support pillar before responding, to increase the capacity of the intervertebral foramen, nerve root compression is released, to prevent disc space collapse and pseudarthrosis.

[0003] 随着微创外科的发展,对椎间融合器的结构及外形设计提出了更高的要求,以利于用微创技术植入椎间融合器。 [0003] With the development of minimally invasive surgery, to the cage structure and a higher shape design requirements, to facilitate interbody fusion implant using minimally invasive techniques.

[0004] 中国专利文献CN201168075Y (申请号200820033096. 1,公告日2008年12月M 日)公开了一种微创椎间融合器,为符合椎体间解剖位置的多面支撑体,在至少一组相对表面之间,开设有通孔,整体形成由多个面状或杆状体构成的支架结构,所述支架结构由球囊构成,球囊的内腔连通支架结构的各杆状或面状体,球囊上设有连通内腔的注入口,所述球囊的膨胀倍率不小于10倍,在膨胀状态下,形成所述支架结构。 [0004] Chinese patent literature CN201168075Y (Application No. 200820033096.1, announcement date December 2008 M Day) discloses a minimally invasive interbody fusion, multi-faceted support for the accord interbody anatomical location, at least one group between the opposing surfaces defines a through hole, the overall stent structure is formed by a plurality of planar or rod-like body composed of said support structure consists of a balloon, or rod-shaped planar configuration of the interior cavity of the balloon of the stent body, an inlet in communication with injection lumen balloon, the balloon expansion coefficient of not less than 10 times, in the expanded state, the stent structure is formed.

[0005] 中国专利文献CN100584283C(申请号200810036042. 5,公告日2010年1月27日) 公开了一种可调式椎间融合器及其把持器,其由后支撑段、连接于后支撑段四角的四条扁方形肢体和置于由四条扁方形肢体围成的空心内腔的螺栓组成;该融合器的前支撑段为可调式,有利于调节高度使其符合人体的解剖结构。 [0005] Chinese Patent Document CN100584283C (Application No. 200810036042.5, announcement date January 27, 2010) discloses an intervertebral fusion device and adjustable gripping device which is supported by the rear section, the support section connected to the rear corners the four limbs and placed flat square surrounded by four flat rectangular limb into the hollow interior of the bolt composition; front support section of the cage is adjustable, so that it is conducive to adjust the height of support human anatomy.

[0006] 上述公开的椎间融合器均具有根据个体特性,调节椎间融合器大小的功能;前者球囊结构的融合器是在植入后,通过向球囊注入内容物调节大小,然而不论内容物是空气、 液晶状物质还是可凝固物质,都存在椎间压力过大而内容物从注液口流出的风险;后者是通过内腔中的螺栓在内腔中的位置调节融合器,由于其前部支撑段是由四条扁方形肢体构成,并且相邻肢体间呈U型镂空,因此其抗压强度受到影响。 [0006] The disclosure has intersomatic cage according to individual characteristics, the size of the adjustable intervertebral fusion function; cage former balloon structure after implantation is adjusted to the size of the balloon by injecting the contents, however, whether air content, the liquid crystal substance or solidifiable material, there is excessive pressure on the intervertebral contents flow from the liquid inlet risk; the latter is adjusted by fusion lumen lumen bolt position, Since the front portion supporting section is constituted of four flat rectangular limb between the limb and the adjacent U-shaped hollow, its compressive strength is affected.

实用新型内容 SUMMARY

[0007] 本实用新型所要解决的技术问题是提供一种抗压强度大、安全性高的可调式椎间融合器。 [0007] The present invention is to solve the technical problem of providing a compressive strength, high safety cage is adjustable.

[0008] 实现本实用新型目的的技术方案是一种可调式椎间融合器,包括融合器主体和螺柱;椎间融合器主体是外形基本为长方体的一体件,融合器主体由后支撑部和前支撑段组成,前支撑段按照上下位置的不同分为第一前支撑段和第二前支撑段,第一前支撑段从前方连接在后支撑部的前侧上方,第二前支撑段从前方连接在后支撑部的前侧下方。 [0008] The object of the present invention achieve technical solution is an adjustable intervertebral fusion device, comprising a body and a stud cage; cage body is a one piece substantially rectangular parallelepiped shape, the fusion portion is supported by the rear body and front support segments, the first segment is divided into a first support and a second support section before the front support section in different vertical positions, a first front support section from the front over the front side of the rear connecting support portion, a second front support section connection from the front side under the front portion of the rear support.

[0009] 融合器主体设有前后贯通的与螺柱相配合的中央螺孔。 [0009] Fusion main body is provided with a central screw hole penetrating the front and rear studs cooperating.

[0010] 融合器主体的第一前支撑段与第二前支撑段。 [0010] Fusion of the first front body and the second supporting section supporting the front section. 相对于经过中央螺孔。 With respect to the screw hole through the center. 的轴线的水平面上下对称设置,第一前支撑段。 The horizontal axis of symmetry vertically disposed, a first front support section. 与第二前支撑段。 And a second front support section. 之间形成的融合器主体。 Formed between the cage body. 的前部内腔的前部的上下之间的距离按照从前向后位置的不同而逐渐增大,且所述的上下之间的距离在前后方向中部或后部位置处与螺柱。 The distance between the upper and lower front portion of the front portion of the lumen in different positions front to back and gradually increases, and the vertical distance between the front-rear direction at a middle or rear position in the stud. 的前端外径相同。 The outer diameter of the front end of the same.

[0011] 所述由后向前推进时第一前支撑段。 The [0011] When the first front support section from the rear forward. 和第二前支撑段。 And a second front support section. 受压缓慢分别向上、下扩张的螺柱。 Compression slow up, down expansion stud. 的后部位于后支撑部。 Located in the rear portion of the rear support. 的螺孔。 Screw holes. 内,前部位于第一前支撑段。 The front portion is located in front of the first support section. 与第二前支撑段。 And a second front support section. 之间。 between.

[0012] 上述后支撑部前部的外形为长方体形,后支撑部的后部的上侧设有一个向上凸起的上连接部,后支撑部由其上连接部与位于前侧上方的第一前支撑段相连接;后部的下端设有一个向下凸起的下连接部,后支撑部由其下连接部与位于前侧下方的第二前支撑段相连接;后支撑部内设有前后贯通的中央螺孔,该中央螺孔也就是融合器主体的中央螺孔; 后支撑部的后部设有方便进行手术的工具卡槽。 [0012] After the outer shape of the supporting portion of the rectangular parallelepiped-shaped front portion, a rear upper portion of the rear support is provided with an upward projection on the connector portion, the rear support portion by the connecting portion is located above the first front side a front support section is connected; lower rear portion of the lower connecting portion is provided with a downwardly projecting, rear support portion is connected by its lower portion connected to the second support section is located below the front side of the front; rear support portions site front and rear central threaded aperture therethrough, the central screw hole is central threaded aperture of the cage body; rear portion of the rear support is provided with slot means to facilitate operation.

[0013] 上述后支撑部的长方体形前部上设有2〜6个上下方向的通孔,所述通孔均与中央螺孔相通;第一前支撑段与第二前支撑段上设有上下贯通的通孔,所述通孔与后支撑座上的相应一个通孔的在同一轴线相同上。 [0013] 2 ~ 6 has a vertical rectangular parallelepiped-shaped front portion supporting the rear portion of the through hole, the through hole are in communication with central threaded aperture; a first front support section and the support section is provided on a second front a through hole penetrating vertically, on the same axis in the same through hole with a through hole of a respective rear seat support.

[0014] 上述第一前支撑段由撑开部、连接部和定位部从前向后连接而成,第一前支撑段由定位部从前方连接在后支撑部的前侧上方;第二前支撑段由撑开部、连接部和定位部从前向后连接而成,第二前支撑段由定位部从前方连接在后支撑部的前侧下方。 [0014] The first front section is supported by the spreader portion, the connecting portion and the positioning portion is connected rearwardly from the front, from the first front support section connected to a front portion supported by the positioning in the front side of the upper portion; a second front support segment by the spreader portion, the connecting portion and the positioning portion is connected rearwardly from the front, second front support section is connected from the front under the front side of the rear portion is supported by the positioning portion.

[0015] 第一前支撑段的撑开部的前部上表面为光滑的朝向前上方的斜向的平面,第二前支撑段的撑开部的前部下表面为光滑的朝向前下方的斜向的平面;第一前支撑段的撑开部的前部和第二前支撑段的撑开部的前部构成了融合器主体的头部,融合器主体头部的侧部的基本形状为从前向后截面积逐渐增大的棱台体的侧部,且该棱台体在上下向的中间部位相互分离。 [0015] On the front portion of the expansion portion of the first front support section is a smooth surface obliquely toward the plane of the front upper, front lower portion of the second front surface of the expansion of the support section is a smooth obliquely downward before plane direction; the front portion of the expansion portion and the expansion portion of the front portion of the second front support section supporting the first front head section constitutes a cage body, the basic shape of the side portion of the main body of the head of the fusion front to back side portion gradually increases in cross-sectional area of ​​truncated pyramids and the truncated pyramids separated from each other in the middle of the vertical direction.

[0016] 上述第一前支撑段的撑开部的前端下部为第一阻挡块,撑开部的位于第一阻挡块后侧部位的下表面为前低后高的斜面,第一前支撑段的连接部的前部的下表面为水平面, 且该下表面从后方与撑开部的位于第一阻挡块后侧部位的下表面相连接。 [0016] The front lower end of the expansion portion of the first support section is a first front stopper, the expansion portion located in a first portion of the lower surface of the rear stopper block is low to high before the ramp, a first front support section the lower surface of the front portion of the connection portion is a horizontal plane, and the lower surface of the block located on the lower surface of the first stopper and the rear part of the rear portion is connected to the expansion.

[0017] 第二前支撑段的撑开部的前端上部为第二阻挡块,撑开部的位于第二阻挡块后侧部位的上表面为前高后低的向下斜面,第二前支撑段的连接部的前部的上表面为水平面, 且该上表面从后方与撑开部的位于第二阻挡块后侧部位的上表面相连接。 [0017] The upper portion of the front end portion of the expansion section of the second front support for the second stopper, the second stopper block upper surface of the rear part of the expansion portion is a high to low downward slope, a second front support upper surface of the front portion of the connection portion of the segment is a horizontal plane, and the upper surface of the upper surface of the second stopper and the rear part of the rear portion is connected to the expansion.

[0018] 上述第一前支撑段的撑开部的位于第一阻挡块后侧部位和第一前支撑段的连接部的前部与第二前支撑段的撑开部的位于第二阻挡块的后侧部位和第二前支撑段的连接部的前部之间形成了从前向后上下间距依次增大的融合器主体的前部内腔,该前部内腔的前部的上下之间的距离按照从前向后位置的不同而逐渐增大,且所述的上下之间的距离在前后方向中部位置或后部位置处与螺柱的前端外径相同。 A second barrier located block [0018] located in the rear part of the first stopper portion and the expansion portion of the expansion the first front support section of the support section connected to the first front portion and a second portion of the front section of the front support formed between a front portion and a rear portion connected to a second front support portion of the front section of the front portion of the lumen of the vertical pitch gradually increases rearward of the cage body, the distance between the upper and lower front portion of the front portion of the lumen according to different positions front to back and gradually increases, and the distance between the vertical mid position in the longitudinal direction or identical to the outer diameter at the rear of the front end position of the stud.

[0019] 上述后支撑部的上表面和第一前支撑段)的上表面构成了融合器主体的上表面, 后支撑部的下表面和第二前支撑段的下表面构成了融合器主体1的下表面;除融合器主体的头部区域外,在融合器主体的其余上表面和下表面上设有连续的波形齿。 An upper surface [0019] upper surface of the rear supporting portion and a first front support segment) constitute a top surface of the cage body, the lower surface of the rear supporting portion and a second front support section constitutes a main body 1 fusion a lower surface; except for the head region of the cage body, is provided with teeth continuous waveform on the remaining upper and lower surfaces of the cage body.

[0020] 所述螺柱为一体件,包括从前向后依次相连的、同一轴线上的前段、中段和后段; 前段和中段均为圆柱体,其中中段的直径小于前段的直径;后段为带有外螺纹的圆柱形螺柱,所述外螺纹与后支撑部的中央螺孔相配合。 [0020] The stud in one piece, including, anterior, middle and posterior front to back on the same axis connected in sequence; both anterior and middle cylinder, wherein a diameter smaller than the diameter of the middle of the front stage; rear segment externally threaded cylindrical stud, and the central threaded aperture of said outer threaded portion cooperating rear support. [0021] 所述螺柱的后段的尾部还设有内六角孔。 [0021] After the tail section of the stud is also provided with a hexagon socket.

[0022] 所述椎间融合器主体的前后向的长度为20mm〜30mm,高度为8mm〜16mm。 [0022] The length of the longitudinal direction of the intervertebral body fusion device 20mm~30mm, height 8mm~16mm.

[0023] 本实用新型具有积极的效果:(1)本实用新型的椎间融合器的前支撑部是由连接在后支撑部的前端面上方的第一前支撑段和连接在后支撑部的前端面下方的第二前支撑段组成,由于上述第一、第二前支撑段是一体结构,因此融合器的支撑结构抗压强度大;又由于前支撑段上设有上下贯通的通孔,不影响融合器的融合效率。 [0023] The present invention has a positive effect: (1) supporting the front portion of the present invention the cage is connected by a first front support section supporting the front end surface of the rear side portion and a rear portion connected to the support a second front support portion below the front end surface of the composition, since the first and second front support section is an integral structure, the support structure of the fusion device of the compressive strength; and because a through hole vertically penetrating the upper front support section, fusion does not affect the efficiency of the fusion device.

[0024] (2)本实用新型的椎间融合器内腔中的螺栓,使用时控制其在内腔中的位置,可以根据个体差异调节融合器前端开口程度,同时也进一步提高了椎间融合器的强度。 [0024] (2) of the present invention the cage bolts in the inner cavity, including the use of position control chamber which can be adjusted according to the degree of opening of the front end of the fusion of individual differences, but also further improved interbody fusion strength's.

[0025] (3)本实用新型采用非管状的螺柱,因此当其置于第一前支撑段和第二前支撑段之间时,可以承受较大压力。 [0025] (3) the present invention uses a non-tubular bolt, so that when it is placed between the first and second front support section front support section, can withstand greater pressure.

[0026] (4)椎间融合器上下表面的波形齿防止融合器的松动,而上下表面开的孔洞、侧面开设的融合槽有利于骨头向内生长,从而进一步固定椎间融合器。 [0026] (4) the waveform of the upper and lower surfaces of the cage teeth prevent loosening of the cage, the upper and lower surfaces of the open hole, the side surface defines grooves facilitate bone fusion ingrowth, thereby further fixing interbody fusion.

附图说明 BRIEF DESCRIPTION

[0027] 图1为本实用新型的椎间融合器的立体图; [0027] Figure 1 is a perspective view of the invention the cage;

[0028] 图2为图1所示融合器主体的后支撑部的立体图; [0028] FIG. 2 is a rear perspective view of the support portion 1 body fusion device;

[0029] 图3为图1所示融合器主体的右视图; [0029] FIG. 3 is a right side view of the fusion body shown in Figure 1;

[0030] 图4为图3的AA剖视示意图; [0030] FIG. 4 is a schematic cross-sectional view AA of FIG. 3;

[0031] 图5为图1所示融合器主体的前视图; [0031] FIG. 5 is a front view of the fusion body shown in Figure 1;

[0032] 图6为图1所示融合器主体的后视图; [0032] FIG. 6 is a rear view of the cage body 1;

[0033] 图7为图1中的螺柱的立体图; [0033] FIG. 7 is a perspective view of the stud of Figure 1;

[0034] 图8为从图6的后下方观察时的立体图; [0034] FIG. 8 is a perspective view viewed from below of Figure 6;

[0035] 图9为本实用新型的椎间融合器的使用示意图; [0035] FIG. 9 is a schematic diagram of the invention using the cage;

[0036] 上述附图中的标记如下: [0036] The numerals in the drawings as follows:

[0037] 融合器主体1,后支撑部11,螺孔11-1,工具卡槽11-2,通孔11-3 ; [0037] Fusion body 1, the rear support portion 11, the screw hole 11-1, the tool slot 11-2, 11-3 through hole;

[0038] 前支撑段12,第一前支撑段12-1,撑开部12-1-1,上表面12_l_la,第一阻挡块12-1-lb,下表面12-1-lc,连接部12-1-2,下表面12_l_2a,定位部12-1-3,凸台12-1-4,弧形槽12-1-5,第二前支撑段12-2,撑开部12-2-1,下表面12_2_la,第二阻挡块12_2_lb, 上表面12-2-lc,连接部12-2-2,上表面12_2_2a,定位部12_2_3,凸台12_2_4,弧形槽12-2-5,通孔12-3 ; [0038] The front support section 12, a first front support section 12-1, 12-1-1 softened portion, an upper surface 12_l_la, a first barrier block 12-1-lb, a lower surface 12-1-lc, the connecting portion 12-1-2, the lower surface 12_l_2a, the positioning portion 12-1-3 boss 12-1-4, 12-1-5 arcuate groove, a second front support sections 12-2, 12-2 distraction -1 lower surface 12_2_la, a second stopper 12_2_lb, the upper surface 12-2-lc, 12-2-2 connecting portion, an upper surface 12_2_2a, the positioning portion 12_2_3 boss 12_2_4, arcuate slot 12-2-5, a through hole 12-3;

[0039] 波形齿13 ; [0039] waveforms teeth 13;

[0040] 第一间隙14-1,第二间隙14-2,第三间隙14_3,第四间隙14_4,第五间隙14-5, U 型融合槽14-6 ; [0040] The first gap 14-1, 14-2 second gap, third gap 14_3, 14_4 fourth gap, a fifth gap 14-5, U-type groove 14-6 fusion;

[0041] 螺柱2,前段21,中段22,后段23,外螺纹23-1,内六角孔23-2。 [0041] The stud 2, front section 21, middle section 22, rear section 23, an external thread 23-1, 23-2 hexagonal socket.

具体实施方式 Detailed ways

[0042](实施例1) [0042] (Example 1)

[0043] 见图1,本实施例的椎间融合器包括融合器主体1和使用时置于融合器主体1内腔中的螺柱2。 [0043] Figure 1, interbody fusion of the present embodiment includes a main body disposed in a lumen of fusion stud 2:01 and use fusion body.

6[0044] 见图1及图2,融合器主体1是由PEEK (聚醚醚酮树脂)材料制成的外形基本为长方体的注塑一体件,融合器主体1由后支撑部11和前支撑段12组成。 6 [0044] Figure 1 and 2, a cage body 1 is PEEK (polyether ether ketone resin) made of a material substantially the shape of a rectangular parallelepiped injection molded in one piece, is supported by a rear portion of the cage 11 and the front support body composed of 12 segments. 前支撑段12按照上下位置的不同分为第一前支撑段12-1和第二前支撑段12-2。 The front support section 12 in a different vertical position of the front supporting section is divided into a first and a second front support section 12-1 12-2. 第一前支撑段12-1从前方连接在后支撑部11的前侧上方,第二前支撑段12-2从前方连接在后支撑部11的前侧下方。 First front support section 12-1 is connected from the front of the front side of the rear upper support portion 11, a second front support section 12-2 is connected to the lower front side of the rear supporting portion 11 from the front. 融合器主体1还设有中央螺孔11-1,该中央螺孔11-1的内螺纹与螺柱2的外螺纹相配合, 融合器主体1相对于经过中央螺孔11-1的轴线的铅垂面以及水平面对称设置。 Cage body 1 further has a central threaded aperture 11-1, 11-1 of the central screw hole with internal thread of the stud cooperating external thread 2, a screw hole through the central axis with respect to the cage body 11-1 vertical plane and horizontal symmetry settings.

[0045] 见图2和图6,后支撑部11是一个外形为块体的部位,该块体的前部的外形为长方体形,该块体在其后部的上侧设有一个向上凸起的上连接部,该块体在其后部的下端设有一个向下凸起的下连接部。 [0045] Figures 2 and 6, the rear support portion 11 is a shape for the portion of the block, the front portion of the outer shape of a rectangular parallelepiped block shape, the block body is provided with an upwardly convex portion at the upper side thereafter since the connecting portion of the block in the lower rear portion of the lower connecting portion is provided with a downwardly convex. 后支撑部11则由其上连接部与位于前侧上方的第一前支撑段12-1相连接,后支撑部11由其下连接部与位于前侧下方的第二前支撑段12-2相连接。 11 by which the rear supporting portion connected to the front portion of the first support section is located above the front side 12-1 is connected to the lower connecting portion 11 by the second support section is located below the front side of the front rear support portion 12-2 connected.

[0046] 后支撑部11内设有前后贯通的中央螺孔11-1,该中央螺孔11-1也就是融合器主体的中央螺孔11-1 ;后支撑部11在其块体后部的后端部位的左右向的中央设有开口向后的上下向的方便进行手术的工具卡槽11-2 ;后支撑部11的前部设有2〜6个(本实施例为4个)上下方向的通孔11-3,所述通孔11-3均与中央螺孔11-1相连通。 After the [0046] support portion 11 features a longitudinal central threaded aperture therethrough 11-1, 11-1 of the central screw hole is central threaded aperture cage body 11-1; rear supporting portion 11 at the rear thereof block It is provided around the central portion of the rear end opening of the rearward vertical to facilitate the operation of a tool slot 11-2; the front portion of the rear support portion 11 is provided with a 2 ~ 6 (four in this embodiment) vertical through holes 11-3, 11-3 of the through hole are communicated with the central screw hole 11-1.

[0047] 见图3,第一前支撑段12-1与第二前支撑段12-2相对于经过中央螺孔11_1的轴线的水平面上下对称设置,第一前支撑段12-1由撑开部12-1-1、连接部12-1-2和定位部12-1-3依次相连组成,第一前支撑段12-1由定位部12-1-3从前方连接在后支撑部11的前侧上方;第二前支撑段12-2也由撑开部12-2-1、连接部12-2-2和定位部12_2_3依次相连组成,第二前支撑段12-2由定位部12-2-3从前方连接在后支撑部11的前侧下方。 [0047] Figure 3, a first front support sections 12-1 and 12-2 second front support section through a horizontal plane with respect to the axis of the central threaded aperture disposed vertically symmetrical 11_1, a first front support section 12-1 distraction section 12-1-1, 12-1-2 connecting portion and the positioning portion are connected in sequence composition 12-1-3, 12-1 connected to the first front support section from the front of the rear support portion 11 by the positioning portion 12-1-3 upper front side; a second front support section 12-2 also made 12-2-1, 12-2-2 connecting portion and the positioning portion are sequentially connected to the expansion unit 12_2_3 composition, a second front support portion by the positioning section 12-2 12-2-3 connecting the lower front side of the rear supporting portion 11 from the front.

[0048] 第一前支撑段12-1的撑开部12-1-1的前部上表面12_l_la为光滑的朝向前上方的斜向的平面,第一前支撑段12-1的撑开部12-1-1的前端面为光滑的铅垂平面,第一前支撑段12-1的撑开部12-1-1的前部上表面12-1-la与前端面的相连处打磨成圆角(图中未画出)。 [0048] 12_l_la smooth obliquely toward the plane of the front above the first surface of the front support section 12-1 of the expansion portion on the front portion of the expansion portion 12-1-1 of the first front support section 12-1 12-1-1 front end face of a smooth vertical plane, the expansion portion of the first front support section 12-1 and 12-1-la connected at the front end portion of the front surface of the upper surface of the polished 12-1-1 rounded corners (not shown).

[0049] 第一前支撑段12-1的撑开部12-1-1的后部、连接部12_1_2和定位部12_1_3的各自的上表面带有连续的波形齿13 ;并且第一前支撑段12-1的连接部12-1-2的后部设有向下凸起的上凸台12-1-4,且上凸台12-1-4位于后支撑部11的前方,上凸台12_1_4的后端面与后支撑部11的块体的前部的前端面之间留有0. 4毫米的贯通融合器主体1左右的第一间隙14-1。 [0049] The rear portion 12-1-1 of the respective upper surface of the connecting portion and the positioning portion 12_1_3 12_1_2 spreader portion 12-1 of the first front support section with a continuous waveform teeth 13; and a first front support section 12-1 12-1-2 rear connecting portion is provided on the downwardly projecting boss 12-1-4, and the convex portion 11 of the front supporting 12-1-4 station located on the boss 0.4 mm left between the front end surface of the front portion of the rear end surface of the block portion 11 of the rear support 12_1_4 body fusion through the first gap of about 114-1. 所述上凸台12-1-4的左右向的中部设有开口向下的可供螺柱2通过的圆弧形上槽,圆弧形上槽的表面上设有与螺柱2的外螺纹相配合的内螺纹,且该圆弧形上槽与中央螺孔11-1同轴线。 To about the middle of the boss is provided with an opening downward 12-1-4 for the stud 2 through the arc-shaped groove, the stud is provided with two outer arcuate upper surface of the groove an internal thread mating the thread, and the arc-shaped groove coaxial with the central screw hole 11-1. 第一前支撑段12-1的定位部12-1-3的下端面与后支撑部11的块体的前部的上端面之间留有0. 4毫米的贯通融合器主体1左右的第二间隙14-2。 Of 0.4 mm is left between the front end surface of the upper portion of the lower end surface of the block portion positioned before the first support section 12-1 12-1-3 rear support portion 11 of the main body through the fusion of about 1 two gap 14-2.

[0050] 第二前支撑段12-2的撑开部12-2-1的前部下表面12_2_la为光滑的朝向前下方的斜向的平面,撑开部12-2-1的前端面为光滑的铅垂平面,撑开部12-2-1的前部下表面12-2-la和前端面相连处打磨成圆角(图中未画出)。 [0050] The front lower surface of the expansion portion of the second front support section 12-2 12-2-1 12_2_la of a smooth plane obliquely toward the lower front of the front end face of the expansion portion is a smooth 12-2-1 the vertical plane, the front lower surface of the expansion portion 12-2-1 12-2-la and a front surface of the polished are radiused connected (not shown).

[0051] 第二前支撑段12-2的撑开部12-2-1的后部、连接部12_2_2和定位部12_2_3的各自的下表面带有连续的波形齿13 ;并且第二前支撑段12-2的连接部12-2-2的后部设有向上凸起的下凸台12-2-4,且下凸台12-2-4位于后支撑部11的前方,下凸台12_2_4的后端面与后支撑部11的块体的前部的前端面之间留有0. 4毫米的贯通融合器主体1左右的第三间隙14-3。 [0051] 12-2-1 the rear, the lower surface of the connection portion of each of the positioning portion 12_2_3 12_2_2 and the expansion portion of the second front support section 12-2 of the teeth 13 with a continuous wave; and a second front support section 12-2-2 rear connecting portion 12-2 is provided with upwardly projecting lower boss 12-2-4, projecting forward and the lower support portion 11 is located in the rear stage 12-2-4, the boss 12_2_4 0.4 mm left between the front end surface of the front portion of the rear end surface of the block portion 11 of the rear support body fusion through the third gap of about 114-3. 所述下凸台12-2-4的左右向的中部设有开口向上的可供螺柱2通过的圆弧形下槽,圆弧形下槽的表面上设有与螺柱2的外螺纹相配合的内螺纹,该圆弧形下槽与中央螺孔11-1同轴线;第二前支撑段12-2的下凸台12-2-4的上表面与第一前支撑段12_1 的上凸台12-1-4下表面之间留有2. 0毫米的贯通融合器主体1左右的第五间隙14-5,且第二前支撑段12-2的圆弧形下槽与第一前支撑段12-1的圆弧形上槽相对设置。 To about the middle of the lower boss 12-2-4 with the arcuate groove opening upwardly for the stud 2 through the arc-shaped stud is provided with external thread 2 of the upper surface of the lower groove mating internal thread, the lower arcuate groove coaxial with the central screw hole 11-1; 12-2 second front support section of the upper surface of the boss 12-2-4 and a first front support section 12_1 left between the bosses on the lower surface of the through 12-1-4 fusion fifth body 2.0 mm gap of about 114-5, and a second arcuate slot under the front support section 12-2 first front support section 12-1 arcuate groove disposed opposite. 第二前支撑段12-2的定位部12-2-3的上端面与后支撑部11的块体的前部的下端面之间留有0. 4毫米的贯通融合器主体1左右的第四间隙14-4。 The first 0.4 mm left between the lower end surface of the front portion of the positioning portion of the second front support section 12 - upper end surface of the block 11 and the rear support portion 12-2-3 body through fusion of about 1 four gap 14-4. 上述第一间隙14-1、第二间隙14-2、第三间隙14-3和第四间隙14-4形成了贯通融合器主体1的左右的U型融合槽14-6。 Said first gap 14-1, 14-2 second gap, third gap and a fourth gap 14-3 through 14-4 is formed around the cage body 1 of the U-shaped groove fusion 14-6.

[0052] 第一前支撑段12-1的撑开部12-1-1的前端下部为第一阻挡块12_l_lb,撑开部12-1-1的位于第一阻挡块12-1-lb后侧部位的下表面12-1-lc为前低后高的斜面,第一前支撑段12-1的连接部12-1-2的前部的下表面12-l-2a为水平面,且该下表面12-1-¾从后方与撑开部12-1-1的位于第一阻挡块后侧部位的下表面12-1-lc相连接;第二前支撑段12-2的撑开部12-2-1的前端上部为第二阻挡块12-2-lb,撑开部12_2_1的位于第二阻挡块12-2-lb后侧部位的上表面12-2-lc为前高后低的斜面,第二前支撑段12-2的连接部12-2-2的前部的上表面12-2-¾为水平面,且该上表面12-2-¾从后方与撑开部12_2_1 的位于第二阻挡块后侧部位的上表面12-2-lc相连接;由此第一前支撑段12-1的撑开部12-1-1的位于第一阻挡块12-1-lb后侧部位和第一前支撑段12-1的连接部12_1_2的前部与第二前支撑段12-2的撑开部12-2-1的位于第二阻挡块12-2-lb的 After [0052] The lower portion of the front end portion of the first front support section spreader 12-1 12-1-1 as a first stopper 12_l_lb, the expansion portion located between the first stopper block of 12-1-lb 12-1-1 side portion of the lower surface 12-1-lc is a low to high before the ramp, the lower surface of the front portion of the connection portion of the first front support section 12-1-2 to 12-1 12-l-2a is a horizontal plane, and the 12-1-¾ lower surface is connected to the rear from the lower surface of the expansion portion located between the first stopper block the rear part of the 12-1-lc 12-1-1; softened portion of the second front support section 12-2 the front end of the upper portion of the second stopper block 12-2-1 12-2-lb, the expansion portion is located 12_2_1 second barrier block 12-2-lb rear part of the upper surface 12-2-lc for the high to low slope, the upper surface of the front portion of the connector portion 12-2 of the second front support section 12-2-2 to 12-2-¾ horizontal plane, and the upper surface 12-2-¾ from the rear of the spreader portion 12_2_1 whereby the first front support section located between the first stopper block 12-1-lb 12-1 12-1-1 distraction portion; a second upper surface located on the rear part of the stopper block is connected to 12-2-lc and a first side portion connected to the front portion 12-1 of the second support section supporting the front section of the spreader portion 12-2-1 to 12-2 at the front 12_1_2 second barrier block 12-2-lb in 侧部位和第二前支撑段12-2的的连接部12-2-2的前部之间形成了融合器主体1的前部内腔,该前部内腔的前部的上下之间的距离按照从前向后位置的不同而逐渐增大,且所述的上下之间的距离在前后方向中部位置处与螺柱2的前端外径相同,使用时随着螺柱2向前旋紧,第一前支撑段12-1的撑开部12-1-1和第二前支撑段12-2的撑开部12_2_1分别向上、下扩张而起到支撑作用。 A second side portion and front portion of the front support section is formed of a body lumen fusion between the front portion of the connecting portion 12-2-2 to 12-2, the distance between the upper and lower front portion of the front portion of the lumen in accordance with different positions front to back and gradually increases, and the distance between the upper and lower the same in the longitudinal direction at a middle position of the outer diameter of the distal end 2 of the stud, when the stud 2 used as screwed forward, the first the expansion of the front support section 12-1 12-1-1 and a second front support portion of the expansion segments are upwardly 12_2_1 12-2, and an expanded play a supporting role.

[0053] 见图5,第一前支撑段12-1的撑开部12-1-1的前端面向后开有弧形槽12_1_5,第二前支撑段12-2的前部12-2-1的前端面向后开有弧形槽12-2-5 ;第一前支撑段12_1的弧形槽12-1-5和第二前支撑段12-2的弧形槽12-2-5对称,拼成了大致为圆形的通道。 [0053] Figure 5, the expansion portion of the first front support section 12-1 is opened facing the front end of the arcuate groove 12_1_5 12-1-1, the front portion of the second front support section 12-2- 12-2 opened after the front end of the arcuate groove facing a 12-2-5; 12-2-5 symmetrical arcuate slot first front support section 12_1 and a second arcuate groove 12-1-5 front support section 12-2 , it makes up a substantially circular path.

[0054] 第一前支撑段12-1和第二前支撑段12-2构成了融合器主体1的前部,融合器主体1的前部左右通透;第一前支撑段12-1的撑开部12-1-1的前部和第二前支撑段12-2的撑开部12-2-1的前部构成了融合器主体1的头部,融合器主体1头部的侧部的基本形状为从前向后截面积逐渐增大、上下向的中间设有间隙的棱台体的侧部;第一前支撑段12-1 的撑开部12-1-1的第一阻挡块的下部中央设有贯通阻挡块前后的弓弦侧朝下的弓柱形通道,第二前支撑段12-2的撑开部12-2-1的第二阻挡块的上部中央设有贯通阻挡块前后的弓弦侧朝上的弓柱形通道,第一阻挡块的弓柱形通道和第二阻挡块的弓柱形通道共同构成了位于融合器主体1的前端部位的大致为圆形的通道。 [0054] The first front support sections 12-1 and 12-2 constitute a second section of the front support body fusion front portion 1, the fusion body portion 1 of the left and right front transparent; first front support section 12-1 12-1-1 front portion of the expansion portion and the expansion portion of the second front portion of the front support section 12-2-1 12-2 constitutes a main body side of the fusion head 1, the head body 1 fusion the basic shape of the portion of the sectional area gradually increases from front to back, down the middle of the side portion is provided with a gap of truncated pyramids; a first supporting section of the first barrier before the expansion portion 12-1-1 12-1 lower center block has a through front and rear sides of the blocking bow downward bow cylindrical channel block, the upper center portion of the second stopper block spreader second front support section 12-2 is provided through the barrier 12-2-1 front and rear side blocks bowstring bow upwardly cylindrical channel, the cylindrical channel of the first bow and bow stopper block passage of the second cylindrical block constitute the barrier at the front end portion of the cage body 1 is substantially circular channels .

[0055] 见图4,第一前支撑段12-1的连接部12-1-2上还设有上下贯通的两个椭圆形通孔,第二前支撑段12-2的连接部12-2-2上也设有上下贯通的两个椭圆形通孔;第一前支撑段12-1的定位部12-1-3上设有上下贯通的四个圆形通孔12-3,第二前支撑段12_2的定位部12-2-3上也设有上下贯通的四个圆形通孔12-3 ;第一前支撑段12-1的各通孔与第二前支撑段12-2的各通孔上下对称,并且第一前支撑段12-1上的各个圆形通孔12-3与后支撑座11上的相应一个通孔11-3的轴线相同。 [0055] Figure 4, a first connection portion on the front support section is further provided with two 12-1-212-1 elliptical through hole penetrating vertically, a second connecting portion 12- of the front support section 12-2 2-2 is also provided with two elliptical through-hole penetrating vertically; four circular through hole penetrating vertically is provided on the positioning portion 12-3 12-1-3 12-1 first front support section, the first two front support section 12_2 positioning portion 12-2-3 also provided with four circular through hole vertically penetrating 12-3; first front support section of the through holes 12-1 and the second front support section 12- each of the through hole 2 vertically symmetrical, and each of the circular through hole of the first support section 12-112-3 front and rear axis of a respective through hole 11 in the support base 11-3 is the same. [0056] 后支撑部11的上表面和第一前支撑段12-1的上表面构成了融合器主体1的上表面,后支撑部12的下表面和第二前支撑段12-2的下表面构成了融合器主体1的下表面;除融合器主体1的头部外,在融合器主体1的其余上表面和下表面上设有上下对称的连续的波形齿13,也即每个波形齿13均按照左右向伸展,所有波形齿13按照前后次序依次排布。 After the [0056] upper surface of the support portion 11 and the front surface of the first support section 12-1 constitute the lower surface of cage body 1, the lower surface of the rear support portion 12 and a second front support section 12-2 the surface constituting the lower surface of the main body 1 of the cage; cage body except for the head 1 is provided with a continuous waveform vertically symmetrical teeth 13 rest on the upper and lower surfaces of the cage body 1, i.e. each waveform They are in accordance with the teeth 13 extend around, all in accordance with before and after the waveform teeth 13 are arranged in the following sequence. 波形齿13增强了椎间融合器与骨体间的稳定性,避免椎间融合器的移动。 Waveform teeth 13 enhances the stability of the intervertebral fusion between the vertebral bodies to prevent movement of the cage.

[0057] 见图7,螺柱2为聚醚醚酮树脂(PEEK)材料制成一体件,包括从前向后依次相连的、同轴线的前段21、中段22和后段23。 [0057] Figure 7, the stud 2 is polyether ether ketone resin (PEEK) made in one piece of material, including connected in sequence from front to rear, coaxial front section 21, middle section 22 and rear section 23. 前段21和中段22均为圆柱体,其中中段22的直径小于前段21和后段23的直径。 They are front section 21 and middle cylinder 22, wherein a diameter smaller than the diameter of the middle section 22 of the front section 21 and rear section 23. 后段23为带有外螺纹23-1的圆柱形螺柱,所述外螺纹23-1与后支撑部11的中央螺孔11-1相配合;后段23的外径与前段21的直径基本相同。 Rear section 23 is externally threaded cylindrical stud 23-1, 23-1 central threaded aperture of said externally threaded rear portion 11 of the support 11-1 engaged; diameter rear section 23 of the outer diameter of the front section 21 basically the same.

[0058] 见图8,螺柱2的后段23的尾部还设有内六角孔23_2,便于螺丝刀将螺柱2拧入中央螺孔11-1。 [0058] Figure 8, the rear section 23 of the stud 2 is also provided with a hexagon socket 23_2, facilitate the screwdriver is screwed into the central threaded aperture stud 2 11-1.

[0059] 本实用新型的椎间融合器主体1的前后向的长度为20mm〜30mm (本实施例中为22mm),上下向的长度(也即高度)为8mm〜16mm (本实施例中为10mm),左右向的长度(也即宽度)与高度相同。 [0059] The longitudinal length of the present invention to the cage body 1 is 20mm~30mm (in this embodiment is 22mm), a length of the vertical direction (i.e., height) of 8mm~16mm (in this embodiment is 10mm), about the length (i.e. width) and the same height. 可以根据实际需要制备不同大小尺寸的椎间融合器。 The intervertebral fusion device can be prepared actual needs of different sizes.

[0060] 本实施例的椎间融合器主体1的第一前支撑段12-1和第二前支撑段12-2形成了可以上下开合的结构,当螺柱2顺时针旋转而由后向前推进时,由于融合器主体1的前部内腔的前部从后向前上下间距逐渐减小,因此随着螺柱2的前进,第一前支撑段12-1和第二前支撑段12-2受压而在上下方向上逐渐张开,实际使用时,根据需要撑开的椎体间距,控制2个前支撑段的张开程度,直至正好符合手术要求。 [0060] The first front support section 1 and the second front support section 12-1 cage main body 12-2 of the present embodiment is formed up and down to open and close structure, when the stud is rotated clockwise by the post 2 when moving forward, since the fusion body lumen anterior portion 1 is the vertical pitch gradually decreases from back to front, so as the forward stud 2, first front support section 121 and a second front support section 12-2 pressed to open gradually in the vertical direction, the practical use, according to the required spacing vertebral distraction, control the degree of opening of the two front support sections until just meet surgical requirements.

[0061] 本实施例的椎间融合器采用PEEK材料,是因为PEEK的生物相容性好,其弹性模量与人骨接近,抗辐射,抗衰老,抗蠕变能力强。 [0061] Example embodiments of the present interbody fusion using a PEEK material, because PEEK, biocompatible, elastic modulus approaching human bone, anti-radiation, anti-aging, anti-creep. 从生物相容性和生物稳定性两方面看,PEEK材料是目前制造椎间融合器最适合的材料;X射线可以穿透PEEK材料,手术中,医生透过X光机可以不受遮挡地进行观察,有利于观察整个病区的情况。 From both biocompatibility and biostability see, PEEK material is best suited for producing the cage material; X rays can penetrate a PEEK material, surgery, the physician may be carried out through the unobstructed X-ray observation, is conducive to observe the entire ward. 此外,椎间融合器也可以使用碳素纤维、钛合金等制造。 Further, the cage can also be used for producing carbon fibers, titanium and the like.

[0062] 见图9,本实施例的椎间融合器使用时,先从背后在脊板间开窗解压,然后行椎间融合;将椎间融合器插入通道后,在融合器的后方用螺丝刀将螺柱2慢慢旋入,此时第一前支撑段12-1和第二前支撑段12-2缓慢张开提供支撑力,将锥节支撑住,使其不掉下来,从而恢复并维持椎间隙的高度。 [0062] Figure 9, when the cage of the present embodiment uses, starting with the back-extracting window between the spine plates and intervertebral fusion; after cage insertion channel in the rear of the cage with 2 screwdriver slowly screwed into the stud, the first front case 121 and a second support section 12-2 slowly opening the front support section provides support force, the tapered savings shore, it fall off, thereby restoring and maintain the intervertebral disc height.

[0063] 本实施例的椎间融合器主体1的上开设的上下方向的通孔、后部的U型融合槽14-6以及融合器主体1的前端部位大致为圆形的通道使得周围骨体在生长时,会有部分骨质生长进椎间融合器,从而骨质将椎间融合器包住,这样进一步将融合器固定在椎体间,同时提高了椎间融合器的融合效率。 A through hole opened in the vertical direction of [0063] the cage body 1 of the present embodiment, U-channel fusion 14-6 and the front end portion of the rear of the cage body 1 is a substantially circular path such that the surrounding bone body is grown, there will be some bone growth into the cage, thereby encasing bone intervertebral fusion, thereby further securing the interbody fusion, while improving the fusion efficiency of the cage.

Claims (9)

1. 一种可调式椎间融合器,其特征在于:包括融合器主体(1)和螺柱(2);椎间融合器主体(1)是外形基本为长方体的一体件,融合器主体(1)由后支撑部(11)和前支撑段(12)组成,前支撑段(12)按照上下位置的不同分为第一前支撑段(12-1)和第二前支撑段(12-2),第一前支撑段(12-1)从前方连接在后支撑部(11)的前侧上方,第二前支撑段(12-2)从前方连接在后支撑部(11)的前侧下方;融合器主体(1)设有前后贯通的与螺柱(2)相配合的中央螺孔(11-1);融合器主体(1)的第一前支撑段(12-1)与第二前支撑段(12-2)相对于经过中央螺孔(11-1)的轴线的水平面上下对称设置,第一前支撑段(12-1)与第二前支撑段(12-2)之间形成的融合器主体(1)的前部内腔的前部的上下之间的距离按照从前向后位置的不同而逐渐增大,且所述的上下之间的距离在前后方向中部或后部位置 An adjustable intervertebral fusion, characterized in that: a cage body (1) and stud (2); intersomatic cage body (1) is a substantially rectangular parallelepiped outer shape of one piece, the cage body ( 1) supported by a rear portion (11) and a front support section (12), with the front supporting section (12) in different vertical positions of the front supporting section is divided into a first (12-1) and a second front support section (12 2), a first front support section (12-1) connected from the front over the front side of the rear supporting portion (11), a second front support section (12-2) is connected to the front rear support portion (11) from the front lower side; cage body (1) is provided with a longitudinal through-stud (2) engaged in the central threaded hole (11-1); a first section of the front support cage body (1), (12-1) and a second front support section (12-2) with respect to a horizontal plane through the axis of the central screw hole (11-1) disposed vertically symmetric, (12-1) and a second front support section of the first front support section (12-2) the distance between the upper and lower front portion of the cage body lumen (1) is formed between the front portion in different positions front to back and gradually increases, and the distance between the upper and lower front-rear direction in the middle or rear positions 与螺柱(2)的前端外径相同;所述由后向前推进时第一前支撑段(12-1)和第二前支撑段(12-2)受压缓慢分别向上、下扩张的螺柱(2)的后部位于后支撑部(11)的螺孔(11-1)内,前部位于第一前支撑段(12-1)与第二前支撑段(12-2)之间。 The same as the outer diameter of the front end of the stud (2); and said first front forward by the rear support section (12-1) and a second front support section (12-2) are pressed up slowly, the expansion a rear stud holes (2) supporting a rear portion (11) in (11-1), a first front portion located on the front support section (12-1) and the second front support section (12-2) of between.
2.根据权利要求1所述的可调式椎间融合器,其特征在于:后支撑部(11)前部的外形为长方体形,后支撑部(11)的后部的上侧设有一个向上凸起的上连接部,后支撑部(11)由其上连接部与位于前侧上方的第一前支撑段(12-1)相连接;后部的下端设有一个向下凸起的下连接部,后支撑部(11)由其下连接部与位于前侧下方的第二前支撑段(12-2)相连接;后支撑部(11)内设有前后贯通的中央螺孔(11-1),该中央螺孔(11-1)也就是融合器主体的中央螺孔(11-1);后支撑部(11)的后部设有方便进行手术的工具卡槽(11-2)。 The adjustable intervertebral cage according to claim 1, wherein: the supporting portion (11) of the outer shape of the front portion of a rectangular parallelepiped shape, on the rear side of the rear supporting portion (11) is provided with an upwardly projections on the connector portion, a rear support portion (11) is connected by its upper part is connected to the front is located above the front side of the first support section (12-1); the lower end of the rear portion is provided with a downwardly projecting lower connecting portion, a rear support portion (11) is connected by its lower portion is connected to the second front support section (12-2) located under the front side; rear supporting portion (11) is provided with a central longitudinal through-holes (11 -1), the central screw hole (11-1) is a central screw cage body (11-1); rear of the rear supporting portion (11) is provided with convenient surgical tool slot (11-2 ).
3.根据权利要求2所述的可调式椎间融合器,其特征在于:后支撑部(11)的长方体形前部上设有2〜6个上下方向的通孔(11-3),所述通孔(11-3)均与中央螺孔(11-1)相通;第一前支撑段(12-1)与第二前支撑段(12-2)上设有上下贯通的通孔(12-3),所述通孔(12-3)与后支撑座(11)上的相应一个通孔(11-3)的在同一轴线相同上。 The adjustable intervertebral cage according to claim 2, wherein: the front portion of the rear support (11) is provided with a through hole of a rectangular parallelepiped (11-3) 2 ~ 6 a vertical direction on a portion of the said through hole (11-3) are (11-1) in communication with the central screw hole; (12-1) and a second front support section of the first front support section is provided with a through hole vertically penetrating the upper (12-2) ( 12-3), a respective through hole (11-3) on the through hole (12-3) and the rear seat support (11) at the same on the same axis.
4.根据权利要求1所述的可调式椎间融合器,其特征在于:第一前支撑段(12-1)由撑开部(12-1-1)、连接部(12-1-2)和定位部(12-1-3)从前向后连接而成,第一前支撑段(12-1)由定位部(12-1-3)从前方连接在后支撑部(11)的前侧上方;第二前支撑段(12-2) 由撑开部(12-2-1 )、连接部(12-1-2)和定位部(12-2-3)从前向后连接而成,第二前支撑段(12-2)由定位部(12-2-3)从前方连接在后支撑部(11)的前侧下方;第一前支撑段(12-1)的撑开部(12-1-1)的前部上表面(12-1-la)为光滑的朝向前上方的斜向的平面,第二前支撑段(12-2)的撑开部(12-2-1)的前部下表面(12-2-la)为光滑的朝向前下方的斜向的平面;第一前支撑段(12-1)的撑开部(12-1-1)的前部和第二前支撑段(12-2 )的撑开部(12-2-1)的前部构成了融合器主体(1)的头部,融合器主体(1)头部的侧部的基本形状为从前向后截面积 The adjustable intervertebral cage according to claim 1, wherein: (12-1) by the spreader portion (12-1-1), the connecting portion (first front support section 12-1-2 before) and the positioning portion (12-1-3) is connected rearwardly from the front, a first front support section (12-1) connected from the front of the rear supporting portion (11) by a positioning portion (12-1-3) of the upper side; a second front support section (12-2) by the spreader portion (12-2-1), the connecting portion (12-1-2) and a positioning portion (12-2-3) is connected rearwardly from the front , a second front support section (12-2) is connected by a positioning portion (12-2-3) from the front under the front side of the rear supporting portion (11); a first front support section (12-1) of the expansion portion (12-1-1) a front portion (12-1-la) on a smooth surface obliquely toward the front upper plane, a second front support section (12-2) of the expansion portion (12-2- 1) a front lower surface (12-2-la) is a smooth planar face obliquely forward and downward; first front support section (12-1) of the expansion portion (12-1-1) and a front portion a second front support section (12-2) of the expansion portion (12-2-1) of the front portion constituting the cage body (1) a head, the basic shape of (1) side of the main body portion of the head of the fusion for the cross-sectional area from front to back 渐增大的棱台体的侧部,且该棱台体在上下向的中间部位相互分离。 Increasing the side portion of a large truncated pyramids and the truncated pyramids separated from each other in the middle of the vertical direction.
5.根据权利要求4所述的可调式椎间融合器,其特征在于:第一前支撑段(12-1)的撑开部(12-1-1)的前端下部为第一阻挡块(12-1-lb),撑开部(12-1-1)的位于第一阻挡块后侧部位的下表面(12-1-lc)为前低后高的斜面,第一前支撑段(12-1)的连接部(12-1-2)的前部的下表面(12-l-2a)为水平面,且该下表面(12-l-2a)从后方与撑开部(12-1-1)的位于第一阻挡块后侧部位的下表面(12-1-lc)相连接;第二前支撑段(12-2)的撑开部(12-2-1)的前端上部为第二阻挡块(12-2-lb),撑开部(12-2-1)的位于第二阻挡块后侧部位的上表面(12-2-lc)为前高后低的向下斜面,第二前支撑段(12-2)的连接部(12-2-2)的前部的上表面(12-2-2a)为水平面,且该上表面(12-2-2a)从后方与撑开部(12-2-1)的位于第二阻挡块后侧部位的上表面(12_2_lc)相连接;上述第一前支撑段(12-1)的撑开部(12-1-1)的位于第一阻挡 The adjustable intervertebral fusion device according to claim 4, wherein: the front end of the front lower portion of the first support section (12-1) of the expansion portion (12-1-1) is a first barrier block ( 12-1-lb), the expansion portion (12-1-1) is located on a first surface of the lower rear part of the stopper block (12-1-lc) is a low to high before the ramp, a first front support section ( a lower surface 12-1) of the connecting portion (12-1-2) of the front portion (12-l-2a) is a horizontal plane, and the lower surface (12-l-2a) from the rear portion of the expansion (12 1-1) located in the rear part of the first lower stopper surface (12-1-lc) is connected; front upper end of the second support section (12-2) of the expansion portion (12-2-1) of a second barrier block (12-2-lb), the expansion portion (12-2-1) is located on a second surface of the rear part of the stopper block (12-2-lc) downward from high to low upper surface of the front portion of the inclined surface, a second front support section (12-2) connecting portion (12-2-2) is (12-2-2a) is a horizontal plane, and the upper surface (12-2-2a) from distraction rearward portion (12-2-1) is located on a second surface (12_2_lc) of the stopper is connected to the rear part; the first front support section (12-1) of the expansion portion (12-1- 1) located in the first barrier 块(12-1-lb)后侧部位和第一前支撑段(12-1)的连接部(12-1-2)的前部与第二前支撑段(12-2)的撑开部(12-2-1)的位于第二阻挡块(12-2-lb)的后侧部位和第二前支撑段(12-2)的连接部(12-2-2)的前部之间形成了从前向后上下间距依次增大的融合器主体(1)的前部内腔,该前部内腔的前部的上下之间的距离按照从前向后位置的不同而逐渐增大,且所述的上下之间的距离在前后方向中部位置或后部位置处与螺柱(2)的前端外径相同。 Blocks (12-1-lb) and a first front support portion of the rear section (12-1) connecting portion (12-1-2) and the second front portion of the front support section (12-2) of the expansion portion between the front portion (12-2-1) is located a second barrier block (12-2-lb) and a second rear part of the front support section (12-2) connecting portion (12-2-2) of forming a vertical pitch gradually increases from front to back of the cage body (1) of the front portion of the lumen, the distance between the upper and lower front portion of the front portion of the lumen in different positions front to back and gradually increases, and the the distance between the upper and lower longitudinal direction of the same outer diameter of the distal end position or middle position of the rear stud (2).
6.根据权利要求1或4所述的可调式椎间融合器,其特征在于:后支撑部(11)的上表面和第一前支撑段(12-1)的上表面构成了融合器主体(1)的上表面,后支撑部(12 )的下表面和第二前支撑段(12-2)的下表面构成了融合器主体1的下表面;除融合器主体(1)的头部区域外,在融合器主体(1)的其余上表面和下表面上设有连续的波形齿(13)。 The adjustable intervertebral fusion device of claim 1 or claim 4, wherein: upper surfaces of the rear supporting portion (11) and a first front support section (12-1) constituting the cage body (1) upper surface, a lower surface of the rear surface of the lower support portion (12) and a second front support section (12-2) constitutes a lower surface of the main body 1 of the cage; cage body (1) in addition to the head outside the region, on the remaining upper and lower surfaces of the cage body (1) is provided with a continuous waveform teeth (13).
7.根据权利要求1所述的可调式椎间融合器,其特征在于:螺柱(2)为一体件,包括从前向后依次相连的、同一轴线上的前段(21)、中段(22)和后段(23);前段(21)和中段(22) 均为圆柱体,其中中段(22)的直径小于前段(21)的直径;后段(23)为带有外螺纹(23-1) 的圆柱形螺柱,所述外螺纹(23-1)与后支撑部(11)的中央螺孔(11-1)相配合。 The adjustable intervertebral cage according to claim 1, wherein: the stud (2) in one piece, including connected in sequence from front to back, front section (21), on the same middle axis (22) and a rear section (23); front section (21) and middle (22) are cylindrical, wherein the middle section (22) is smaller than the diameter of the front section (21) has a diameter; rear section (23) is externally threaded (23-1 ) central cylindrical stud holes, said external thread (23-1) and the rear supporting portion (11), (11-1) cooperates.
8.根据权利要求7所述的可调式椎间融合器,其特征在于:所述螺柱(2)的后段(23) 的尾部还设有内六角孔(23-2 )。 According to claim adjustable intervertebral fusion device of claim 7, wherein: the tail of the stud (2) of the rear section (23) is further provided with a hexagon socket (23-2).
9.根据权利要求1所述的可调式椎间融合器,其特征在于:椎间融合器主体(1)的前后向的长度为20mm〜30mm,高度为8mm〜16mm。 Adjustable according to claim 1 of the intervertebral cage, characterized in that: the length of the longitudinal direction of the cage body (1) is 20mm~30mm, height 8mm~16mm.
CN 201120243502 2011-07-12 2011-07-12 Adjustable intervertebral fusion device CN202191381U (en)

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CN103876865A (en) * 2014-02-21 2014-06-25 吉林医药学院 Expandable interbody fusion cage
CN104257422A (en) * 2014-10-16 2015-01-07 广州医科大学附属第一医院 Inter-vertebral spacer suite
CN105853030A (en) * 2016-03-25 2016-08-17 广州军区广州总医院 Dilatable cervical vertebral fusion cage
US9788971B1 (en) 2013-05-22 2017-10-17 Nuvasive, Inc. Expandable fusion implant and related methods
US9801734B1 (en) 2013-08-09 2017-10-31 Nuvasive, Inc. Lordotic expandable interbody implant
US10195053B2 (en) 2009-09-18 2019-02-05 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US10245159B1 (en) 2009-09-18 2019-04-02 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same

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Publication number Priority date Publication date Assignee Title
US10195053B2 (en) 2009-09-18 2019-02-05 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US10245159B1 (en) 2009-09-18 2019-04-02 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US10219915B1 (en) 2013-05-22 2019-03-05 Nuvasive, Inc. Expandable fusion implant and related methods
US9788971B1 (en) 2013-05-22 2017-10-17 Nuvasive, Inc. Expandable fusion implant and related methods
US10492924B2 (en) 2013-08-09 2019-12-03 Nuvasive, Inc. Lordotic expandable interbody implant
US9801734B1 (en) 2013-08-09 2017-10-31 Nuvasive, Inc. Lordotic expandable interbody implant
CN103876865A (en) * 2014-02-21 2014-06-25 吉林医药学院 Expandable interbody fusion cage
CN103876865B (en) * 2014-02-21 2016-04-27 吉林医药学院 Inflatable Invasive lumbar fusion device
CN104257422A (en) * 2014-10-16 2015-01-07 广州医科大学附属第一医院 Inter-vertebral spacer suite
CN105853030A (en) * 2016-03-25 2016-08-17 广州军区广州总医院 Dilatable cervical vertebral fusion cage

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