CN103462677A - Internal fixation system of spine and anchoring structure of internal fixation system of spine - Google Patents

Internal fixation system of spine and anchoring structure of internal fixation system of spine Download PDF

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Publication number
CN103462677A
CN103462677A CN2013104509891A CN201310450989A CN103462677A CN 103462677 A CN103462677 A CN 103462677A CN 2013104509891 A CN2013104509891 A CN 2013104509891A CN 201310450989 A CN201310450989 A CN 201310450989A CN 103462677 A CN103462677 A CN 103462677A
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China
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structure
screws
anchoring
mounting hole
fixation system
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CN2013104509891A
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Chinese (zh)
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张文桥
邬春晖
刘明岩
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上海三友医疗器械有限公司
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Priority to CN2013104509891A priority Critical patent/CN103462677A/en
Publication of CN103462677A publication Critical patent/CN103462677A/en

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Abstract

The invention discloses an anchoring structure of an internal fixation system of a spine. The structure comprises a connecting block and at least two screws, wherein the connecting block is provided with mounting holes which are respectively matched with the screws; after the screws are matched with the mounting holes, straight lines where the at least two screws are located belong to different planes or are intersected. When the internal fixation of the spine is carried out, one screw firstly passes through one mounting hole in the connecting block to be implanted into a holding point of a bone block; then other screws are used for being sequentially implanted into bone blocks along the matching directions with other mounting holes; two screws with unparallel axles in the screws form a certain angle; the unscrewing directions of the two screws are inconsistent; the two screws are both matched with the connecting block at the same time, so that the two screws can be locked mutually and looseness is avoided. The anchoring structure can be used for being stably fixed at the holding point of the bone block, and the firm bone anchoring can be also realized under a poor bone density condition. The invention also discloses the internal fixation system of the spine, which comprises the anchoring structure.

Description

一种脊柱内固定系统及其锚接结构 A spinal fixation system and the anchor structure

技术领域 FIELD

[0001] 本发明涉及医疗器械技术领域,特别是涉及一种脊柱内固定系统及其锚接结构。 [0001] The present invention relates to the field of medical devices, particularly to the A spinal fixation system and the anchoring structure. 背景技术 Background technique

[0002] 脊柱内固定术的应用已有近百年的历史,内固定术主要是应用金属螺钉、钢板、髓内针、钢丝或骨板等物直接在断骨内或外面将断骨连接固定起来的手术,多用于骨折切开复位术及切骨术,以保持折端的复位。 [0002] Spinal fixation has a history of use, is the application of internal fixation of metal screws, plates, intramedullary nail, a bone plate or a wire for nearly a century was used directly in the fractured bone or outside the fixing broken bones connected together surgery, used for fracture open reduction and osteotomy, to keep off the reset terminal.

[0003] 内固定术可以概括为两个步骤:1)植钉,在不同的椎体或骨折两端的骨块上植入螺钉形成把持锚接;2)安装连接器,将钢板、棒或钢丝等连接装置安装在螺钉上,通过压缩、撑开或扭转各锚节点间相对位置从而进行对骨结构的矫正,然后锁紧各锚节点形成整体的内固定结构。 [0003] Internal fixation can be summarized in two steps: 1) Stud, gripping the implant screw anchor is formed on both ends of the bone or vertebral fracture different; 2) mounting connector, the steel sheet, rod or wire connecting means mounted on the other screw, distraction or torsion relative position of each anchor node so as to correct the bone structure by compression, and then locking the respective anchors integrally formed in the fixed structure.

[0004] 现有的内固定术中,植入的螺钉通常可以得到坚固的骨锚接,然而在一些特殊的情况下,例如在骨质密度不好,骨质比较疏松的位置,其把持力较小,植入的螺钉比较容易松动,无法实现坚固的骨锚接,将危及整个内固定结构的稳定性,以至影响最终的治疗效果。 [0004] The conventional internal fixation of the implant screw can usually be sturdy bone anchor, but in some special cases, such as poor bone density, bone position relatively loose, which gripping force smaller, easier to implant screws loose, can not be achieved solid bone anchor, will endanger the stability of the entire inner fixed structure, as well as affect the final treatment. 尤其在骶骨的固定中,骶骨的骨质通常比较酥松,植入的螺钉很容易脱落。 Especially in the sacrum, the sacral bone usually crisp, the implanted screw off easily.

[0005] 有鉴于此,亟待针对上述技术问题,设计一种脊柱内固定系统的锚接结构,可以在骨质密度不佳的情况下实现坚固的骨锚接。 [0005] In view of this urgent need for the above problem, the anchor structure in the design of a spinal fixation system can be realized a solid bone anchored in the case of poor bone density.

发明内容 SUMMARY

[0006] 本发明的目的是提供一种脊柱内固定系统的锚接结构,此锚接结构能够在骨质密度不佳的情况下实现坚固的骨锚接。 [0006] The object of the present invention provides an internal spinal fixation system anchoring structure, this anchoring structure provide sturdy anchoring bone in the case of poor bone density. 本发明的另一个目的是提供一种脊柱内固定系统。 Another object of the present invention provides an internal spinal fixation system.

[0007]为了实现上述技术目的,本发明提供了一种脊柱内固定系统的锚接结构,包括螺钉,所述螺钉的数目至少为两个;还包括连接块,所述连接块具有能够分别与各所述螺钉配合的安装孔,各所述螺钉分别与各所述安装孔配合后,至少两个所述螺钉轴线所在的直线异面或相交。 [0007] To achieve the above technical object, the present invention provides an anchor structure in the A spinal fixation system comprising a screw, the number of screws is at least two; further comprising a connecting block, the connecting block and are capable each of the screw fitting mounting hole, respectively, each of the screw holes with each of said mounting post, at least two of said linear uniplanar screw axis intersects or is located.

[0008] 优选地,所述连接块具有至少两个成预定角度的平面,至少一个所述安装孔与其他所述安装孔位于不同的所述平面上。 [0008] Preferably, the connecting surface having a predetermined angle of at least two blocks, with at least one other of said mounting holes of said mounting holes are located in different said plane.

[0009] 优选地,至少一个所述安装孔内设有调节环,所述调节环具有内螺纹,所述螺钉的头部具有与所述内螺纹配合的外螺纹;所述调节环的外侧具有凸圆弧面,设有所述调节环的所述安装孔具有与所述凸圆弧面配合的凹圆弧面。 [0009] Preferably, said at least one mounting hole is provided with adjustment ring, the adjustment ring having an internal thread, the head of the screw has an external thread cooperating with the inner thread; adjusting said outer ring having convex arc face, provided with the mounting hole of the adjustment ring having a concave arcuate surface engaged with the convex arc face.

[0010] 优选地,所述锚接结构包括两个所述螺钉,两个所述螺钉中一者通过所述调节环与所述连接块的安装孔连接,另一者直接与所述连接块的安装孔螺纹连接。 [0010] Preferably, the anchoring structure comprises the two screws, two screws in one of said adjusting ring through said mounting hole and the connecting block is connected directly to the other of the connecting block threaded mounting holes.

[0011] 优选地,所述连接块具有两个成预定角度的所述平面,每个所述平面具有一个所述安装孔,两个所述安装孔中一者具有凹圆弧面,另一者具有内螺纹。 [0011] Preferably, said connecting plane at a predetermined angle with two blocks, each having a plane of said mounting hole, the mounting hole in two by a circular arc having a concave surface, the other It shall have an internal thread.

[0012] 优选地,两个所述螺钉异面,且两个所述螺钉在与二者均平行的平面上的投影相交。 [0012] Preferably, the two different screws surface, and the two screws projected on a plane parallel to both intersect. [0013] 优选地,两个所述螺钉头部的外螺纹相同,所述调节环的内螺纹与所述安装孔的内螺纹相同。 [0013] Preferably, the same two external threads of said screw head, said adjustment screw ring internal thread identical with the mounting hole. [0014] 本发明还公开了一种脊柱内固定系统,包括若干锚接结构、若干连接结构和固定结构,各所述锚接结构分别植入骨块的确定位置,各所述连接结构分别与各所述锚接结构连接,所述固定结构确定各所述连接结构之间的位置并固定各所述连接结构,所述锚接结构为上述任一项所述的锚接结构。 [0014] The present invention also discloses an spinal fixation system comprising a plurality of anchor structures, and a plurality of connecting structure fixed structure, each of the anchoring bone structure are implanted to determine the position of each of the connection structure, respectively connecting each of the anchoring structure, determining the position of the stationary structure between each of the connecting structure and the connecting structure is fixed, the anchoring structure of the anchoring structure according to any of the above.

[0015] 优选地,所述连接结构与所述锚接结构的所述连接块连接,或与各所述螺钉中的 [0015] Preferably, said connecting structure and the anchoring structure is connected to the connecting block, or with each of the screws

一者连接。 One connection.

[0016] 优选地,所述脊柱内固定系统为骶骨固定系统。 [0016] Preferably, within said sacral spinal fixation system is a fixed system.

[0017] 本发明提供的脊柱内固定系统的锚接结构,包括连接块和至少两个螺钉,连接块具有能够分别与各螺钉配合的安装孔,各螺钉分别与各安装孔配合后,至少两个螺钉轴线所在的直线异面或相交。 After [0017] the anchoring structure of the present invention provides a spinal fixation system, comprising at least two screws and a connecting block, the connector block having a mounting hole can be fitted, respectively, with each of the screws, the screws are fitted with respective mounting holes, at least two linear axis lies uniplanar screws or intersect.

[0018] 进行脊柱内固定时,将锚接结构植入骨块的把持点。 When the [0018] fixed intraspinal, the gripping structure of the implant anchor points of bone. 先将一个螺钉穿过连接块的一个安装孔植入骨块的把持点;然后依次将其他螺钉按与其他安装孔配合的方向依次植入骨块,且各螺钉中至少有两个螺钉轴线所在的直线不平行,上述的两个螺钉的轴线成一定的角度,二者松脱的方向不一致,同时二者又均与连接块配合,则二者之间能够相互锁止,避免松脱,进而能够使得锚接结构稳定的固定在骨块的把持点,在骨质密度不佳的情况下也能实现坚固的骨锚接。 A first screw through a mounting hole of the connection block of the bone implant gripping point; followed by the screw in the direction of the other cooperating with other bone implants sequentially mounting hole, and each screw having at least two screw axis lies is not a straight line parallel to the axis of the two screws at an angle, both inconsistent release direction, while they are both engaged with the connector block, it is possible to lock each other between the two, to avoid loosening, and further It enables stable anchoring structure fixed to the gripping point of the bone, in the case of poor bone density can be achieved sturdy anchoring bone.

[0019] 一种方式中,连接块具有至少两个成预定角度的平面,至少一个安装孔与其他安装孔位于不同的平面上。 [0019] A, the connecting block has at least two planar predetermined angle, mounting holes on at least one plane different from the other mounting holes are located.

[0020] 连接块具有成预定角度的不同平面,不同平面上的安装孔的轴线不平行,分别与上述安装孔配合的螺钉位于不同的平面内且成预定角度,则分别与上述安装孔配合的螺钉相互之间能够避免松脱。 [0020] The connector block having a predetermined angle different planes, the axis of the mounting hole on a different plane is not parallel, respectively, with the mounting hole with a screw located and at a predetermined angle in different planes, respectively mate with the mounting hole loosening screws each other can be avoided.

[0021] 另一种方式中,连接块具有至少两个位于同一平面内轴线相交的安装孔,则与这两个安装孔配合的两个螺钉与连接块三者能够形成三角架结构,能够实现坚固的骨锚接。 [0021] In another embodiment, the connector block having at least two mounting holes are located within the same plane intersecting the axis, the two connection blocks with three screws to the two mounting holes can be formed with a tripod structure, it is possible rugged bone anchor.

[0022] 进一步的方式中,至少一个安装孔内设有调节环,调节环具有内螺纹,螺钉的头部具有与内螺纹配合的外螺纹;调节环的外侧具有凸圆弧面,设有调节环的安装孔具有与凸圆弧面配合的凹圆弧面。 [0022] In a further embodiment, the at least one mounting hole is provided with adjustment ring, the adjustment ring having an internal thread, the screw head having an external thread cooperating with the internal thread; adjusting the outside ring has a convex arc surface, an adjusting ring mounting hole having a concave arc surface cooperating with a convex arc surface.

[0023] 调节环能够与安装孔圆弧面配合,其安装角度能够适当调节,进而能够适当的调节通过调节环与连接块配合的螺钉的安装角度。 [0023] The adjustment ring can cooperate with the mounting hole circle arc, which mounting angle can be appropriately adjusted, and thus can be suitably adjusted by adjusting the mounting angle of the connecting block cooperating with the ring screw. 连接块的安装孔能够确定与其配合的螺钉的大致方向,在螺钉安装角度的调节范围内,能够与其他螺钉锁止,在安装螺钉时,可以通过调节环根据骨块的具体情况适当调节螺钉的安装角度。 Connector block mounting hole capable of determining its approximate direction of the screw fitted in the mounting angle of the adjustment range of screws, other screws can be locked, when the mounting screws can be appropriately adjusted by adjusting the screw ring depending on the circumstances of the bone installation angle.

[0024] 一种优选的方式中,锚接结构包括两个螺钉,两个螺钉中一者通过调节环与连接块的安装孔连接,另一者直接与连接块的安装孔螺纹连接;连接块具有两个成预定角度的平面,每个平面具有一个安装孔,两个安装孔中一者具有凹圆弧面,另一者具有内螺纹。 [0024] In a preferred embodiment, the anchoring structure includes two screws, two screws in the mounting hole by adjusting one connecting block is connected to the ring, the other is directly connected to the threaded mounting hole of the connecting block; connecting block having two plane into a predetermined angle, each plane having a mounting hole, one of the two mounting holes having a concave arc surface, and the other has an internal thread.

[0025] 本发明还公开了一种脊柱内固定系统,包括若干锚接结构、若干连接结构和固定结构,各锚接结构分别植入骨块的确定位置,各连接结构分别与各锚接结构连接,固定结构确定各连接结构之间的位置并固定各连接结构,此锚接结构能够在骨质密度不佳的骶骨上实现坚固的骨锚接,能够保证整个脊柱内固定系统的稳定性。 [0025] The present invention also discloses an spinal fixation system comprising a plurality of anchor structures, and a plurality of connecting structure fixed structure, each of the anchor structure are implanted to determine the position of the bone, each of the connecting structure are connected to each anchoring structure connection, determines the position of the fixed structure connected between the fixed structure and each of the connecting structure, this structure can achieve firm anchoring of the bone anchor in the bone density poor sacrum, to ensure the stability of the overall spinal fixation system. 附图说明 BRIEF DESCRIPTION

[0026] 图1为本发明提供的脊柱内固定系统的锚接结构一种具体实施方式的装配图; Intraspinal present invention provides [0026] FIG 1 the anchoring structure of the fixed system a particular embodiment of the assembly of FIG embodiment;

[0027] 图2为图1所示的锚接结构的爆炸示意图; [0027] FIG. 2 is an exploded schematic view of the anchoring structure shown in Figure 1;

[0028] 图3为本发明所提供的脊柱内固定系统一种具体实施方式的装配图; [0028] Spinal fixation system of Figure 3 the assembly of the present invention provides a specific embodiment in FIG;

[0029] 图4为图3所示的脊柱内固定系统的工作状态示意图。 Operating state [0029] FIG. 4 is shown in FIG. 3 in the spinal fixation system of FIG.

[0030] 其中,图1至图4中的附图标记如下: [0030] wherein, in the accompanying drawings Figures 1 to 4 are labeled as follows:

[0031] 螺钉1 ;外螺纹13 ;连接块2 ;安装孔21 ;平面22 ;调节环3 ;内螺纹31 ;连接结构4;骶骨5。 [0031] 1 screw; external thread 13; connecting block 2; mounting hole 21; plane 22; adjusting ring 3; internal thread 31; connecting structure 4; 5 sacrum.

具体实施方式 Detailed ways

[0032] 本发明的核心是提供一种脊柱内固定系统的锚接结构,此锚接结构能够在骨质密度不佳的情况下实现坚固的骨锚接。 [0032] The core of the present invention provides an internal spinal fixation system anchoring structure, this anchoring structure provide sturdy anchoring bone in the case of poor bone density. 本发明的另一个核心是提供一种脊柱内固定系统。 Another core of the present invention is to provide a spinal fixation system.

[0033] 为了使本技术领域的人员更好地理解本发明方案,下面结合附图和具体实施方式对本发明作进一步的详细说明。 [0033] In order to make those skilled in the art a better understanding of the invention, The present invention will be described in further detail in conjunction with accompanying drawings and specific embodiments.

[0034] 请参考图1和图2,图1为本发明提供的脊柱内固定系统的锚接结构一种具体实施方式的装配图,图2为图1所示的锚接结构的爆炸示意图。 [0034] Please refer to FIG. 1 and FIG. 2, the anchoring structure of the present invention provides a spinal fixation system of FIG. 1 showing a specific embodiment of assembling embodiment, FIG 2 is an exploded schematic view of the anchoring structure shown in FIG.

[0035] 在一种具体的实施方式中,本发明提供了一种脊柱内固定系统的锚接结构,包括连接块2和至少两个螺钉1,连接块2具有能够分别与各螺钉I配合的安装孔21,各螺钉I分别与各安装孔21配合后,至少两个螺钉I轴线所在的直线异面或相交。 [0035] In one specific embodiment, the present invention provides an anchor structure in the A spinal fixation system, comprising a connecting block 2 and at least two screws 1, having a connecting block 2 can be fitted with respective screws I after the mounting holes 21, 21 respectively, each I mate with screw mounting holes, faces the at least two different linear screw or intersects the I axis lies.

[0036] 进行脊柱内固定时,将锚接结构植入骨块的把持点。 When the [0036] fixed intraspinal, the gripping structure of the implant anchor points of bone. 此锚接结构包括至少两个螺钉1,先将一个螺钉I穿过连接块2的一个安装孔21,植入骨块的把持点,然后依次将其他螺钉I按与其他安装孔21配合的方向依次植入骨块;由于各螺钉I中至少有两个螺钉I轴线所在的直线异面或相交,也就是说二者不平行,上述两个螺钉I的轴线成一定的角度,则上述两个螺钉I的松脱方向不一致,同时二者又均与连接块2配合,则二者植入骨块的把持点后,相互之间能够相互锁止,避免松脱。 This anchoring structure comprises at least two screws 1, a first screw connection block I through a mounting hole 21 of the bone implant gripping points, followed by pressing the I with other mounting screw hole 21 with the other direction successively implanting bone; I due to the respective screw of at least a straight line where the two different surface axis intersecting screws or I, that is both non-parallel to the axis of the two screws at an angle I, the above two I inconsistent release direction of the screw, while both are in turn connected with the block 2, both the bone after implantation gripping points, each capable of locking between each other to avoid loosening.

[0037] 此锚接结构中,至少有两个螺钉I不在同一平面内,或在同一平面内不平行,满足上述位置关系的两个螺钉I之间均能够实现锁止,进而能够使得锚接结构稳定的固定在骨块的把持点,在骨块的骨质密度不佳的情况下,也能通过螺钉I之间的相互锁止获得预期的把持力,使得锚接结构实现坚固的骨锚接。 [0037] This anchoring structure, at least two screws I not in the same plane, or parallel in the same plane, the lock can be realized to meet all of the positional relation between the two screws I, and further enables the anchor structurally stable fixed point of gripping of the bone, in the case of poor bone density of bone case, by mutual locking between the screw I to obtain the desired gripping force, so that the anchor structure to achieve strong bone anchor access.

[0038] 图1中仅示出两个轴线异面的螺钉1,可以想到,该锚接结构可以包括多个轴线异面的螺钉1,然后根据骨块的具体情况和把持点的具体特点设置螺钉I的数量和方向,然后确定连接块2的结构和形状,使骨块获得最佳的骨锚接。 In [0038] FIG. 1 shows only two axes of the screw 1 iso-surface, it is contemplated that a screw anchor structure may include a plurality of different axes of a plane, and then set according to the specific characteristics of the specific circumstances of the bone and the gripping points I magnitude and direction of the screw, and then determine the shape and structure of the connection block 2, so that optimum bone anchoring bone.

[0039] 为了实现锚接结构具有轴线不平行的螺钉1,可以使连接块2具有轴线不平行的安装孔21,则连接块2的一种具体结构是具有至少两个成预定角度的平面22,至少一个安装孔21与其他安装孔21位于不同的平面22上。 [0039] In order to achieve the anchoring structure having an axis not parallel to the screw 1, the connecting piece 2 can have an axis not parallel to a mounting hole 21, the connecting block is a concrete structure 2 having at least two planes at a predetermined angle 22 at least one mounting hole 21 and the other mounting aperture 21 is located on a different plane 22.

[0040] 连接块2具有成预定角度的不同平面22,则不同平面22上的安装孔21的轴线不平行,能够使得分别与上述安装孔21配合的螺钉I的轴线也不平行,则上述螺钉I之间成预定角度,能够实现螺钉I之间的相互锁止。 [0040] The connecting block 2 having a plane at a predetermined angle different from 22, the axis of the mounting hole 22 is not parallel to different planes 21, respectively, can be made with the mounting screw hole 21 is not parallel to the axis I, the above-described screw predetermined angle between the I, to achieve mutual locking between the screw I. [0041] 显然,连接块2也可以只具有一个平面,此平面内至少具有两个轴线不平行的安装孔21,则与这两个安装孔21配合的两个螺钉I与连接块2三者能够形成三角架结构,此锚接结构植入骨块的把持点后,即使骨块的骨质密度不佳,也能获得预期的把持力,实现坚固的骨锚接。 [0041] Obviously, the connector block 2 may have only one plane, having at least two axes not parallel to the plane of the mounting hole 21, the two cooperating screws I and three connecting block 2 and two mounting holes 21 after capable of forming a tripod structure, this anchoring structure implant bone gripping point, even if the bone is of poor bone density, can obtain the desired gripping force to realize a solid anchoring bone.

[0042] 一种优选的实施方式中,此锚接结构至少一个安装孔21内设置调节环3,调节环3具有内螺纹31,螺钉I的头部具有与内螺纹31配合的外螺纹13 ;调节环3的外侧具有凸圆弧面,设置调节环3的安装孔21具有与凸圆弧面配合的凹圆弧面。 [0042] In a preferred embodiment, this anchoring structure disposed within the at least one mounting hole 21 adjusting ring 3, the adjustment ring 3 outer thread 13 mating with internal threads 31 with internal threads 31, the screw head having I; adjusting the outer ring 3 has a convex arcuate surface disposed adjusting ring 21 having a mounting hole 3 of the concave arcuate surface cooperating with a convex arc surface. [0043] 调节环3能够与螺钉I螺纹连接,又能够与具有凹圆弧面的安装孔21圆弧面配合,弧面配合使得调节环3与安装孔21配合的角度可以调节,则可以适当调节通过调节环3与连接块2配合的螺钉I的安装角度。 [0043] The adjusting ring 3 can be connected with the screw thread I, and capable of cooperating with mounting holes 21 has a concave arcuate surface of the arcuate surface, such that the mating with the arc angle adjusting ring 3 and the mounting holes 21 can be adjusted, may be appropriately mounting angle adjusting screw fit I by adjusting ring 3 and the connecting piece 2. [0044] 植入螺钉I时,连接块2的安装孔21能够确定螺钉I的大致方向,调节环3能够适当调节螺钉I的安装角度,在螺钉I安装角度的调节范围内,此螺钉I安装后均能够与其他螺钉I相互锁止。 [0044] When the screw implant I, the connecting block 21 of the mounting hole 2 can be determined substantially in the direction of the screw I, can be appropriately adjusting ring 3 mounting angle adjusting screws I, I screw mounted within the adjustment range of angles, this mounting screws I after the lock are able to interact with other screws I.

[0045] 植入锚接结构时,各骨块的具体情况不同,植入第一个螺钉I后,植入其余的螺钉I时,可以根据骨块的具体情况通过调节环3适当的调整植入角度,实现最佳的锚接效果。 [0045] when implanted anchor structures, different specific circumstances of each bone fragment, a screw after implantation I, when implanted in the remaining screws I, can be adjusted by appropriate adjustment ring 3 according to the specific case of bone explants of the angle, optimum anchoring effect.

[0046] 锚接结构的各螺钉I均可以通过调节环3与连接块2配合,也可以使得植入的第一个螺钉I直接与连接块2配合,其位置确定后,再植入其他螺钉1,其他螺钉I通过调节环3与连接块2配合,则其他螺钉I植入时,均可以在适当范围内调整植入角度。 [0046] Each screw anchor structure I can be by adjusting ring 3 and the mating connecting block 2, may be such that the first screw implant I is directly engaged with the connector block 2, after determining its position, and then implanted other screws 1, when other screws I by adjusting ring 3 and the mating connecting block 2, the other screws I implantation, implantation angle can be adjusted within an appropriate range.

[0047] 如图1、2所示,锚接结构包括两个螺钉1,两个螺钉I中一者通过调节环3与连接块2的安装孔21连接,另一者直接与连接块2的安装孔21螺纹连接。 [0047] 1 and 2, the anchoring structure comprises two screws 1, one of the two screws I by adjusting ring 3 and the mounting hole 21 of the connecting block 2 is connected, the other is connected directly to block 2 mounting screw hole 21 is connected. 选定骨块的把持点后,先植入直接与连接块2连接的螺钉1,然后根据骨块的结构和连接块2的结构选定另一个螺钉I的植入方向,可以通过调节环3适当调整植入方向,获得最佳的植入效果。 After gripping point selected bone, the implant directly to the first connector 1 and the screw connection block 2, and the screw direction of the other implant I is selected according to the structure of the bone structure and a connecting block 2, by adjusting ring 3 adjust the direction of implantation, implantation best results.

[0048] 具体的,可以根据骨块的具体结构设计连接块2,使得连接块2具有两个成预定角度的平面22,每个平面22具有一个安装孔21,两个安装孔21中一者具有凹圆弧面,另一者具有内螺纹31。 [0048] Specifically, the configuration may be specifically designed according to the bone connecting block 2, so that the connecting block 2 plane has a predetermined angle of the two 22, 22 each having a flat 21, two mounting holes 21 in one of a mounting hole It has a concave arc surface, and the other has an internal thread 31.

[0049] 进一步优选的方式中,上述两个螺钉I异面,且上述两个螺钉I在与二者均平行的平面上的投影相交。 [0049] In a further preferred embodiment, the above-described two screws I uniplanar, and said two screws I projected on a plane parallel to both intersect.

[0050] 植钉时,先将第一颗螺钉I沿确定的方向植入,然后使第二颗螺钉I向第一颗螺钉I收缩并向侧面倾斜的角度植入,植入后二者呈如图1所示的状态,二者与连接块2在侧面形成三角状,或者,二者与连接块2在侧面向外张开形成梯形;同时,相对于两个螺钉I头部的连接线,二者的植入角度向两侧张开呈外八字,显然,从两个螺钉I的位置关系和受力情况,可以分析得出,此结构的锚接结构能够获得更稳定的骨锚接。 [0050] Stud when, first implantation of a screw in a direction determined I, I and the second screws to the contraction of a screw and I flank angle inclined implantation, post-implantation showed both the state shown in Figure 1, both the connecting piece 2 is formed in the side surface of a triangular shape, or both the connection block 2 is formed flared trapezoid side; the same time, with respect to the connecting line of the two head screws I , implantation angle was open to both sides of both the toe, it is clear, from the positional relationship between the forces and the two screws I can analysis, the anchor structure this structure can be obtained more stable anchoring bone .

[0051] 具体的,两个螺钉I头部的外螺纹13可以相同,调节环3的内螺纹31与安装孔21的内螺纹也可以相同,这样可以使得两个螺钉I具有很好的互换性。 [0051] Specifically, the external threads of the two screws 13 may be the same head I, an internally threaded adjustment ring 3 internal thread 31 of the mounting hole 21 may be the same, so that two screws can I have a good interchange sex.

[0052] 请参考图3和图4,图3为本发明所提供的脊柱内固定系统一种具体实施方式的装配图,图4为图3所示的脊柱内固定系统的工作状态示意图。 [0052] Please refer to FIG. 3 and FIG. 4, assembly view of one particular embodiment of the spinal fixation system according to the present invention is provided in FIG. 3 and FIG. 4 is a schematic view of the operating state shown in FIG. 3 intraspinal fixing system.

[0053] 本发明还提供了一种脊柱内固定系统,包括若干锚接结构、若干连接结构4和固定结构,各锚接结构分别植入骨块的确定位置,各连接结构4分别与各锚接结构连接,固定结构确定各连接结构4之间的位置并固定各连接结构4,锚接结构为上述各实施例中所述的锚接结构。 [0053] The present invention further provides the A spinal fixation system comprising a plurality of anchor structures, a plurality of the connection arrangement 4 and the fixed structure, each of the anchor structure are implanted to determine the position of the bone, each of the connection arrangement 4 are each anchor connector attachment structure, the fixed structure to determine the position between the connection arrangement 4 and fix the connection structure 4, each of the anchoring structure of the above-described embodiments anchoring structure.

[0054]固定结构为复位棒、固定板等部件,图3和图4中未视出固定结构,连接结构4为固定结构提供与锚接结构的连接点,并与固定结构配合实现复位动作并锁紧,矫正骨结构。 [0054] The fixing structure of the reset rod, the fixed plate member, FIG. 3 and FIG. 4, not depending on the fixed structure, the connection structure 4 is connected to a fixed point structure provides the anchor structure and the fixed structure of the complex to achieve a reset operation and locking, correct bone structure.

[0055] 对骨质比较酥松的骨块进行固定时,使用上述的锚接结构,能够获得预期的把持力;各锚接结构均分别与各连接结构4连接,然后,固定结构安装在各连接结构4上,通过压缩、撑开或扭转等复位动作改变各锚接点间的相对位置实现对骨结构的矫正,然后锁紧各锚接点形成整体的脊柱内固定系统。 [0055] When comparing crunchy bone fixing bone, using the anchoring structure, it is possible to obtain the desired gripping force; each anchor structure are connected to the respective connection arrangement 4 are, then, mounted on the fixed structure connected to each of the the structure 4, by compression, distraction or torsion, the reset operation of changing the relative position between the respective anchor points to achieve correction of the bone structure, and then locking the respective anchor points integrally formed in the spine system.

[0056] 具体的,连接结构4可以与锚接结构的各螺钉I中的一者连接,也可以与锚接结构的连接块2连接。 [0056] Specifically, the connection structure 4 may be connected to each screw anchor structure I one, 2 may be connected to the connecting piece anchor structures. 连接结构4与锚接结构的连接形式可以参考现有技术,本文不再赘述。 4 to form a connection structure connecting anchor structure may refer to the prior art, it will not be repeated herein.

[0057] —种方式中,所述脊柱内固定系统可以为骶骨固定系统,骶骨5的骨质通常比较疏松,如图4所示。 [0057] - in ways, within the sacral spinal fixation system may be a fixed system, the sacral bone of generally looser 5, as shown in FIG.

[0058] 此脊柱内固定系统不仅可以为骶骨固定系统,还可以为其他的脊柱内固定系统。 [0058] Within this spinal fixation system not only for the sacral fixation system, but also that within another spinal fixation system. 在对骨质密度不好或骨质疏松的患者进行脊柱内固定时,各锚接点均可以采用本发明中所述的锚接结构,使得脊柱内固定系统获得最佳的治疗效果。 When the spinal fixation or bone density in patients with osteoporosis not performed, each of the anchor points can be employed in the anchoring structure according to the present invention, so that the spinal fixation system to obtain the optimal therapeutic effect.

[0059] 以上对本发明所提供的脊柱内固定系统及其锚接结构进行了详细介绍。 [0059] The present invention described above for spinal fixation system is provided and the anchoring structure are described in detail. 本文中应用了具体个例对本发明的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。 Herein through specific examples and embodiments of the principles of the present invention are set forth in the above described embodiments are only used to help understand the method and core idea of ​​the present invention. 应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以对本发明进行若干改进和修饰,这些改进和修饰也落入本发明权利要求的保护范围内。 It should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, may also be a number of modifications and improvements of the present invention, and these improvements and modifications also fall within the scope of the claims of the invention.

Claims (10)

1.一种脊柱内固定系统的锚接结构,包括螺钉(1),其特征在于,所述螺钉(I)的数目至少为两个;还包括连接块(2),所述连接块(2)具有能够分别与各所述螺钉(I)配合的安装孔(21),各所述螺钉(I)分别与各所述安装孔(21)配合后,至少两个所述螺钉(I)轴线所在的直线异面或相交。 1. A spinal anchoring the structure of the fixed system, comprising a screw (1), characterized in that the number of screws (I) is at least two; further comprising a connecting block (2), said connecting block (2 ) capable of having a mounting hole (21) are engaged with each of said screws (I), each of said rear screw (I) are fitted with each said mounting hole (21), said at least two screws (I) axis where the straight line or an intersecting.
2.如权利要求1所述的脊柱内固定系统的锚接结构,其特征在于,所述连接块(2)具有至少两个成预定角度的平面(22),至少一个所述安装孔(21)与其他所述安装孔(21)位于不同的所述平面(22)上。 2. The anchoring structure intraspinal fixing system according to claim 1, wherein said plane connecting block (22) (2) having at least two predetermined angle, said at least one mounting hole (21 ) the other of said mounting holes (21) located in different said plane (22).
3.如权利要求2所述的脊柱内固定系统的锚接结构,其特征在于,至少一个所述安装孔内设有调节环(3),所述调节环(3)具有内螺纹(31),所述螺钉(I)的头部具有与所述内螺纹(31)配合的外螺纹(13);所述调节环(3)的外侧具有凸圆弧面,设有所述调节环(3)的所述安装孔(21)具有与所述凸圆弧面配合的凹圆弧面。 3. The anchoring structure within the spinal fixation system as claimed in claim 2, wherein said mounting hole is provided with at least one adjusting ring (3), the adjustment ring (3) has an internal thread (31) the screw (I) is a head having an external thread (13) cooperating with the thread (31) of said inner; said adjusting ring (3) has a convex arcuate outer surface, with the adjustment ring (3 ) of the mounting hole (21) having a concave arcuate surface engaged with the convex arc face.
4.如权利要求3所述的脊柱内固定系统的锚接结构,其特征在于,所述锚接结构包括两个所述螺钉(1),两个所述螺钉(I)中一者通过所述调节环(3)与所述连接块(2)的安装孔(21)连接,另一者直接与所述连接块(2 )的安装孔(21)螺纹连接。 4. The anchoring structure within the spinal fixation system as claimed in claim 3, wherein the anchoring structure comprises the two screws (1), the two screws (I), by one of the adjustment ring of said mounting hole (3) and the connecting block (2) (21), (2) the other mounting hole connection piece (21) is directly connected to the screw.
5.如权利要求4所述的脊柱内固定系统的锚接结构,其特征在于,所述连接块(2)具有两个成预定角度的所述平面(22),每个所述平面(22)具有一个所述安装孔(21),两个所述安装孔(21)中一者具有凹圆弧面,另一者具有内螺纹(31)。 5. The anchoring structure 4 intraspinal fixing system according to claim, wherein said connecting plane (22) (2) having a predetermined angle of two blocks, each of said plane (22 ) having a mounting hole (21), two of said mounting holes (21) in one face having a concave arc, and the other has an internal thread (31).
6.如权利要求5所述的脊柱内固定系统的锚接结构,其特征在于,两个所述螺钉(I)异面,且两个所述螺钉(I)在与二者均平行的平面上的投影相交。 Anchoring structure as claimed in claim 5 intraspinal fixing system and said two plane parallel with both screws (I) in claim, characterized in that said two screws (I) iso-surface, intersecting the projection.
7.如权利要求6所述的脊柱内固定系统的锚接结构,其特征在于,两个所述螺钉(I)头部的外螺纹(13 )相同,所述调节环(3 )的内螺纹(31)与所述安装孔(21)的内螺纹相同。 7. A anchor structure intraspinal fixing system according to claim 6, characterized in that the external thread (13) of said two screws (I) of the same head, said adjusting internal threaded ring (3) (31) and the inner thread of the mounting hole (21) of the same.
8.一种脊柱内固定系统,包括若干锚接结构、若干连接结构(4)和固定结构,各所述锚接结构分别植入骨块的确定位置,各所述连接结构(4)分别与各所述锚接结构连接,所述固定结构确定各所述连接结构(4)之间的位置并固定各所述连接结构(4),其特征在于,所述锚接结构为权利要求1至7任一项所述的锚接结构。 A spinal fixation system comprising a plurality of anchor structures, a plurality of the connecting structure (4) and the fixed structure, each of the anchoring structure are implanted to determine the position of the bone, each of said connecting structure (4), respectively connecting each of the anchoring structure, the position of each fixing structure between the connecting structure (4) and is fixed to each of said connection structure (4), wherein the anchoring structure as claimed in claim 1 7 according to any one of the anchoring structure.
9.如权利要求8所述的脊柱内固定系统,其特征在于,所述连接结构(4)与所述锚接结构的所述连接块(2 )连接,或与各所述螺钉(I)中的一者连接。 9. The spinal fixation system according to claim 8, wherein said connecting structure (4) is connected to the structure of the anchoring block (2) connected to the or each screw (I) of one connector.
10.如权利要求9所述的脊柱内固定系统,其特征在于,所述脊柱内固定系统为骶骨固定系统。 10. The spinal fixation system according to claim 9, wherein said fixation system for the sacral spinal fixation system.
CN2013104509891A 2013-09-26 2013-09-26 Internal fixation system of spine and anchoring structure of internal fixation system of spine CN103462677A (en)

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