CN102551868A - Posterior cervical spine single open door side block spinous process steel plate - Google Patents

Posterior cervical spine single open door side block spinous process steel plate Download PDF

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Publication number
CN102551868A
CN102551868A CN2012100060605A CN201210006060A CN102551868A CN 102551868 A CN102551868 A CN 102551868A CN 2012100060605 A CN2012100060605 A CN 2012100060605A CN 201210006060 A CN201210006060 A CN 201210006060A CN 102551868 A CN102551868 A CN 102551868A
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China
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portion
spinous process
plate
fixing
hole
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CN2012100060605A
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Chinese (zh)
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刘观燚
孙韶华
徐荣明
马维虎
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刘观燚
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Priority to CN2012100060605A priority Critical patent/CN102551868A/en
Publication of CN102551868A publication Critical patent/CN102551868A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7071Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor

Abstract

A posterior cervical spine single open door side block spinous process steel plate is stretching-Z-shaped and comprises a first fixing portion, a second fixing portion and a connecting portion. The first fixing portion and the second fixing portion are connected by the connecting portion, an obtuse angle is formed between the first fixing portion and the connecting portion, and an obtuse angle is also formed between the second fixing portion and the connecting portion. The posterior cervical spine single open door side block spinous process steel plate is characterized in that the first fixing portion comprises a body placed on the outer wall of a vertebral plate and a spinous process fixing portion matching with the outer wall of spinous process, the tail end of the body is upwards bent to form the spinous process fixing portion, the spinous process fixing portion is provided with a first through hole, and a spinous process screw penetrates through the first through hole. Compared with the prior art, the posterior cervical spine single open door side block spinous process steel plate has the advantages that as the thickness of the spinous process is much larger than that of the vertebral plate, a fixing effect of the spinous process screw is better than stability of screws perpendicularly placed on the vertebral plate in terms of biomechanics, furthermore, a tip of the spinous process screw can be seen directly during surgery, the screw does not touch the spinal canal of a patient assuredly, the cervical spinal cord is not injured, and surgery safety is enhanced.

Description

颈椎后路单开门侧块棘突钢板 Posterior cervical spinous process plate single door side piece

技术领域 FIELD

[0001] 本发明涉及一种颈椎后路固定钢板。 [0001] The present invention relates to a steel sheet posterior cervical fixation. 背景技术 Background technique

[0002] 目前临床上各种诸如椎管狭窄,颈椎间盘突出,颈髓损伤等各种颈椎疾病往往需要后路的减压。 [0002] At present, such as a variety of clinical spinal stenosis, cervical disc, cervical spinal cord injury and other diseases often require posterior under reduced pressure. 常规的减压手术方法是行椎板切除减压,用咬骨钳将棘突和椎板咬除,暴露相应节段的椎管。 Conventional decompression laminectomy is reduced, with rongeur bite than the spinous process and lamina, the respective exposed spinal segment. 用后路钢板固定材料进行内固定。 Posterior internal fixation with plate immobilizing material. 然而这种手术方式使得患者的颈椎活动功能丢失,术后常常引起顽固性疼痛,活动受限,影响手术疗效。 However, this makes surgical function in patients with cervical spine loss, surgery often leads to intractable pain, limited mobility, affecting the surgery. 如果椎板减压后不行钢板固定,则又可能形成术后颈椎失稳和后凸畸形。 If not laminectomy fixed plate, it is liable to be formed kyphosis and cervical spine instability.

[0003] 近年来,在颈椎后路“单开门”手术作为椎板切除术的一种替代方式得到发展,不仅可以用于治疗颈椎脊髓病,而且可以预防椎板切除术后颈椎失稳和后凸畸形。 [0003] In recent years, the posterior cervical "open-door" as an alternative to surgical laminectomy been developed, not only for the treatment of cervical myelopathy, but also can prevent cervical spine instability after laminectomy and after convex deformity. 手术方法是在“开门侧”(门缝)椎板与侧块联合处磨出纵形骨槽,在“开门侧”对侧(“铰链侧”)相对应的部位作“V”形开槽,保留1.0mm厚度的松质骨和内层皮质骨。 The method of operation is in the "open side" (the door) of the lamina and the side blocks jointly bone longitudinal grooves milled in the "open side" of side ( "side hinged") for the portions corresponding to "V" shaped slot , 1.0mm thickness retention cancellous bone and the inner cortical bone. 铰链侧开槽准备好后, 切断开门区上下两端的黄韧带及椎板相互重叠的部分,分离囊壁软组织和静脉。 Hinge side slotted ready, cut open upper and lower end regions of the lamina and yellow ligament partially overlap each other, separation of the soft tissue and the vein wall. 依次打开各个节段椎板。 In order to open each segment laminectomy. 颈椎后路“单开门”手术比后路内固定融合的好处在于可以保留颈椎的活动,尤其适用于长节段的手术。 Posterior cervical "open-door" operation that benefits than posterior fixation and fusion of the cervical spine can remain active, especially for surgery long segments.

[0004] 但“单开门”手术后“开门侧”椎板容易闭合,引起“再关门”,重新引起椎管狭窄的临床症状。 [0004] But the "open door" surgery "open side" lamina easily closed, causing "re-close" again causing the clinical symptoms of spinal stenosis. 何防止椎板“再关门”引起椎管再狭窄成为研究的焦点。 It lamina prevent "re-close the door" to become the focus of restenosis caused by spinal research. 但是在目前的脊柱后路中,尚无专用的适用于维持颈椎椎板开门位置,防止再关门的固定材料及器件。 In the most posterior of the spine, there is no dedicated applies to maintain cervical laminectomy open position to prevent materials and devices and then fixed closing. 临床上常用用钢丝或丝线等绑扎固定,固定后很不可靠,影响手术后效果,或出现手术并发症。 Used clinically wire or wire lashing and the like, the fixing unreliable, impact effect after surgery, or surgical complications.

[0005] 为此,现有技术中出现了一些专门用于颈椎后路开门手术的器件,见专利号为ZL201020135415.7的中国实用新型专利《新型脊柱后路手术椎板复位固定部件》(授权公告号为CN201617932U),该固定部件由一个两端带螺纹孔的连接片和两个特制螺钉组成; 均采用钛合金为材料;在手术中连接片可以塑形。 [0005] For this reason, there are some prior art devices designed for open surgery, posterior cervical, see Patent No. Chinese utility model patent ZL201020135415.7 "new lamina posterior spinal surgical fixation member" (Authorized announcement No. CN201617932U), and two connecting pieces special screws the fixing member consists of a threaded hole at both ends of the composition; titanium alloy materials are used; in the connecting piece can be shaped surgery. 连接片一端用螺钉固定在没有拿掉的椎板残端,另一端用螺钉固定在刚复位的椎板上,椎板的左右两侧开缝处分别固定。 One end of the connection piece is screwed in the absence stump lamina removed, another slit at the fixing screws on the lamina immediately reset, both the left and right ends, respectively, with the lamina.

[0006] 又可以参考专利号为ZL200620125952. 7的中国实用新型专利《颈椎开门固定板》 (授权公告号为CN201022741Y),该固定板由一块窄长钢板制成,具有椎板固定板、侧块固定板、连接板,连接板连接椎板固定板和侧块固定板,椎板固定板和侧块固定板上设置至少两个螺钉固定孔。 [0006] and can refer to Patent No. ZL200620125952. 7 in Chinese utility model patent "cervical door fixing plate" (authorized announcement No. CN201022741Y), the fixing plate is made of an elongated steel plate having a fixing lamina, side block a fixing plate, connection plate, connection plate and the side plate fixing lamina block fixing plate, the fixing plate and the side block lamina fixed plate provided with at least two screw holes. 椎板固定板、侧块固定板及连接板呈拉伸了的Z形。 Lamina fixing plate, the fixing plate and the connecting plate-side blocks form a Z-shaped stretch. 进一步还具有一卡合椎板的卡板。 It is further provided with an engaging cardboard lamina. 这种固定板与ZL20102013M15. 7公开的固定板相比,术后稳定性大大提高, 但稍存在不足的地方,首先,由于颈椎椎板厚度一般为3〜4mm左右,因此椎板固定时螺钉不仅较短,固定不牢固,而且可能突破椎板腹侧皮质进入椎管侵犯颈髓;椎板开口处各个病人存在个体差异,如椎板厚度的差异,椎板开口角度及残余椎板的长度等,而统一规格的固定板在安装角度及卡板的卡接位置上均是唯一的,固定不变的,微调存在一定难度,因而整体术后的稳定性还不是最佳,可进一步提高。 This compared with the fixed plate ZL20102013M15. 7 disclosed in the fixing plate, after greatly improved stability, but slightly deficiencies exist, first of all, since the cervical lamina thickness is about 3~4mm, so only when the fixing screw lamina short, not firmly fixed, and may break into the spinal canal cortical lamina ventral spinal cord violations; lamina openings there are individual differences of the individual patient, such as differences in the thickness of the lamina, the lamina and the opening angle of the residual lamina length and the like , unified specifications of the fixed plate in the mounting angle and snap-on position pallets are unique, fixed, there is a certain degree of difficulty tuning, so the stability of the whole surgery is not the best, can be further improved. 发明内容 SUMMARY

[0007] 本发明所要解决的技术问题是针对上述的技术现状而提供一种在颈椎后路单开门手术中用于连接侧块与棘突的固定钢板。 [0007] The present invention solves the technical problem of the above-described state of the art for providing posterior cervical fixation plate A single open surgery side block for connecting the spinous processes. 将现有3〜4mm长度的椎板固定螺钉改为棘突螺钉,固定长度可达到12mm,由于棘突厚度大大超过椎板的厚度,使得棘突螺钉固定效果在生物力学上好于在椎板上垂直置钉的稳定性,且由于术中可以直视到棘突螺钉的钉尖,保证螺钉没有侵犯椎管,损伤颈髓,提高了手术安全性。 The length of the lamina prior 3~4mm fixing screws to screw the spinous processes, fixed length up to 12mm, the thickness of the spinous process greatly exceeds the thickness of the lamina, such that the screw fixation spine biomechanics better than that in lamina vertical stability of pedicle screws, and due to surgery can look spinous screw nail tip, to ensure there is no violation of the screw canal, spinal cord injury, improve surgical safety.

[0008] 本发明所要解决又一个技术问题:颈椎后路单开门侧块棘突钢板的支撑椎板的卡板可以根据病人实际的椎板厚度的差异和残余椎板的长度作出相应的调整。 [0008] The present invention solves a further technical problem: single door side piece posterior cervical spinous process plate supporting lamina can be made of cardboard adjusted according to a length difference between the actual thickness of the lamina and the residual lamina of the patient.

[0009] 本发明解决上述技术问题所采用的技术方案为:一种颈椎后路单开门侧块棘突钢板,该钢板呈拉伸的Z型,包括第一固定部、第二固定部及连接前述第一固定部和第二固定部的连接部,前述的第一固定部与连接部成一钝角,前述的第二固定部与连接部也成一钝角,其特征在于所述的第一固定部包括置于椎板外壁的本体部及与棘突外壁相适配的棘突固定部,前述的棘突固定部由本体部的末端向上弯折而成并具有供棘突螺钉通过的第一通孔。 [0009] aspect of the present invention to solve the above technical problem is: one kind of a single door side piece posterior cervical spinous process steel sheet was stretched Z-shaped, comprising a first fixing portion, the second fixing portion and the connecting fixing the connection portion of the first portion and the second fixing portion, the first fixing portion and the connecting portion at an obtuse angle, the second fixing portion and the connecting portion is also an obtuse angle, wherein said first fixing portion comprises a body portion disposed outer wall lamina and spinous process and the spinous processes fixing portion adapted to an outer wall of the fixing portion of the spinous process by the end of the body portion bent upwardly from and having a first through hole for a screw by spinous .

[0010] 所述的连接部一侧设有一卡板,该卡板与前述的本体之间形成一供残余椎板卡接的卡口。 Connecting portion [0010] of the card is provided with a side plate, form a bayonet for a residual lamina between the snap plate and the card body. 安装时,本体部与残余椎板外壁相扣,卡板托住残余椎板的内壁,残余椎板的头部则设置于卡口内,卡板的设置使整体骨架更加稳固。 When mounting, the outer wall of the body portion and the residue of interlocking lamina, the lamina pallets residual hold the inner wall, the residual lamina is disposed in the head mount, the entire set of card board more stable backbone.

[0011] 为使卡板能适应不同个体之间的差异,保证最大限度的安全性和稳固性,所述的卡板沿着连接部长度方向能移动地设置于连接部上。 [0011] In order to adapt pallets differences between different individuals, to ensure maximum safety and stability, the cardboard along a part length direction movably connected to the connecting portion is provided.

[0012] 所述的连接部设置有一供撑开器撑开卡板时作为支点的支板部,该支板部位于卡板下方并靠近第二固定部。 [0012] The connecting portion is provided with a supporting plate for a portion as a fulcrum when the expansion card distraction plate, the support plate portion located below and adjacent to a second pallet fixing portion. 为使卡板准确快速设置,可以采用撑开器,撑开器由两个中间相互转动连接的第一撑开部和第二撑开部组成,卡板调节时,第一撑开部的前端位于卡板上, 第二撑开部的前端位于支板部上,通过控制第一撑开部的前端与第二撑开部的前端的距离,就能将卡板位置调到最佳状态。 When the plate quickly and accurately so that the card is provided, may be employed distractor, a first distractor distraction two intermediate portions pivotally connected to each other and a second portion composed of distraction, pallets regulation, the front end portion of the first distraction of the card board, the front end portion of the second spreader portion positioned on the support plate, by controlling the distance the distal tip of the expansion of the second portion of the first portion of the expansion, the pallets can be transferred to the best state position.

[0013] 卡板的调节结构优选如下设计:所述的连接部沿着长度方向成型有一条形孔,对应地,所述的卡板的端部具有一能在条形孔内来回移动的凸头部,该凸头部内具有螺孔,一调节螺钉穿过前述的条形孔与该螺孔连接为一体。 [0013] Preferably adjustment structure pallets designed as follows: the connecting portion along the longitudinal direction has a shape formed holes corresponding to the end portion of said pallets having a bar movable back and forth in the bore of projection the head, with the screw having a convex head portion, a screw hole through the adjustment bar is integrally connected with the screw hole. 凸头部适配于条形孔内壁,并且不能转动,优选方形。 Nosecone adapted to the inner wall of the rectangular hole, and can not be rotated, preferably square.

[0014] 所述的连接部沿着长度方向成型有一条形孔,一植骨块设置于连接部上并沿着该条形孔能移动。 [0014] The connecting portion formed along the longitudinal direction have a hole shape, a bone block disposed in and movable along the connecting portion of the strip-shaped hole.

[0015] 植骨块的调节设置优选如下结构:所述的植骨块端面具有一螺钉孔,一调节螺钉穿过所述的条形孔与该螺钉孔连接为一体。 [0015] The graft preferably is provided adjusting the structure: end surface of the graft has a screw hole, an adjusting screw passing through the strip hole and the screw hole are integrally connected.

[0016] 进一步,所述的第二固定部上成型有一供侧块螺钉通过的第二通孔。 [0016] Further, there are formed a second fixing portion according to a second through hole through lateral mass screw supply.

[0017] 进一步,所述第一固定孔和第二固定孔的孔道可以设计成喇叭口状,便于螺钉置入时角度上的微调。 [0017] Further, the first bore and the second fixing hole fixing hole may be designed flared, to facilitate the trimming angle screw placement.

[0018] 与现有技术相比,本发明的优点在于:由于棘突厚度大大超过椎板的厚度,使得棘突螺钉打的更深,因而固定更加稳固,且不易侵犯颈髓,保证术后的安全性。 [0018] Compared with the prior art, advantages of the present invention is that: the thickness of the spinous process greatly exceeds the thickness of the lamina, such that the screw hit spinous deeper, and thus more stable fixation, cervical violations and difficult to ensure postoperative safety. 此外,颈椎后路单开门侧块棘突钢板的支撑椎板的卡板可以根据病人实际的椎板厚度的差异和残余椎板的长度作出精确调整。 Furthermore, a single door side piece posterior cervical spinous process plate supporting lamina can be made of card board accurately adjusted according to a length difference between the actual thickness of the lamina and the residual lamina of the patient. 在临床上具有重要的应用意义。 It has important significance in clinical application.

4附图说明 BRIEF DESCRIPTION OF 4

[0019] 图1为实施例1结构示意图。 [0019] FIG. 1 is a schematic configuration example of an embodiment.

[0020] 图2为实施例1分解装配图。 [0020] FIG. 2 is an exploded assembly view of Example 1 embodiment.

[0021] 图3为实施例1安装后状态图。 [0021] Example 1 FIG. 3 is a rear mounted state of FIG embodiment.

[0022] 图4为图3中A部的放大图。 [0022] FIG. 3 FIG. 4 is an enlarged view of A portion.

[0023] 图5为实施例1中卡板位置调节时状态图。 [0023] FIG. 5 of Example 1 in the card position adjusting plate state of FIG.

[0024] 图6为实施例2结构示意图。 [0024] FIG. 6 is a schematic view of the structure of Example 2.

[0025] 图7为实施例3结构示意图。 [0025] FIG. 7 is a schematic view of the structure of Example 3.

[0026] 图8为实施例4结构示意图。 [0026] FIG. 8 is a schematic structural diagram of embodiment 4.

具体实施方式 Detailed ways

[0027] 以下结合附图实施例对本发明作进一步详细描述。 Example DRAWINGS The invention will be further described in detail with [0027] the binding.

[0028] 实施例1,本实施例为最佳实施例,如图1和图2,本实施例中的颈椎后路单开门侧块棘突钢板大体呈拉伸的ζ型,包括第一固定部1、第二固定部2及连接第一固定部1和第二固定部2的连接部3,第一固定部1与连接部3成一钝角,第二固定部2与连接部3也成一钝角,第一固定部1包括置于椎板外壁的本体部11及与棘突外壁相适配的棘突固定部4, 棘突固定部4由本体部11的末端向上弯折而成并具有供棘突螺钉通过的第一通孔41。 [0028] Example 1, the present embodiment is a preferred embodiment, as shown in FIGS. 1 and 2, in the present embodiment posterior cervical embodiment spinous process plate single door side piece substantially stretched ζ type, comprising a first fixing section 1, section 2 and a second fixing portion fixed to the first connector 1 and the second connecting portion 2 of the fixing portion 3, a first fixing portion and the connecting portion 3 at an obtuse angle, the fixed portion 2 and the second connector portion 3 are also at an obtuse angle , a lamina comprising an outer wall disposed a first fixing portion of the main body portion 11 and the fixing portion spinous process spinous processes adapted to the outer wall 4, the spinous process by an end fixing portion 4 of the body portion 11 is bent upwardly from and having a supply the first through hole 41 through the screw spinous process. 第二固定部2上成型有一供侧块螺钉通过的第二通孔21。 The second fixing portion 2 for forming a second screw through the through hole 21 of the side blocks. 本实施例中的第一固定部1、连接部3和第二固定部2为一体件。 1, the connecting portion 3 and the second fixing portion 2 integrally fixing portion of the first member in the present embodiment. 第一固定孔和第二固定孔的孔道可以设计成喇叭口状,便于螺钉置入时角度上的微调。 A first bore hole and the second fixing hole may be designed as a fixing flared, to facilitate the trimming angle screw placement.

[0029] 连接部3 —侧设有一沿着连接部长度方向能移动的卡板5,该卡板5与第一固定部11之间形成一供残余椎板卡接的卡口53。 [0029] The connection portion 3 - side is provided with a movable part length along a direction of the card connector plate 5, a card contact for the residual lamina 53 is formed between the mount plate 11 of the card 5 and the first fixing portion. 连接部3设置有一供撑开器撑开卡板时作为支点的支板部7,支板部7位于卡板5下方并靠近第二固定部2。 3 is provided with a connection portion for supporting the plate portion as a fulcrum when the expansion card distraction plate 7, the support plate portion 7 is positioned below and close to the 5 second fixing portion 2 pallets.

[0030] 卡板的可调节结构设置如下:连接部3沿着长度方向成型有一条形孔31,对应地, 卡板5的端部具有能在条形孔31内来回移动的凸头部51,该凸头部51内具有螺孔52,调节螺钉6穿过条形孔31与螺孔52连接为一体。 [0030] card board structure is provided may be adjusted as follows: the connection portion 3 formed along the longitudinal direction has a shaped hole 31, corresponding to the end portion of the card plate 5 can be moved back and forth within the strip-shaped head portion 51 having a hole 31 projection , the inner nosecone 51 has a screw hole 52, the adjusting screw 6 through the hole 31 and the screw bar 52 is connected integrally. 凸头部51为方形适配于条形孔31内壁, 并且不能转动。 51 is a rectangular convex head portion 31 is adapted to the inner wall of the rectangular hole, and can not be rotated.

[0031] 如图3和图4所示,本实施例中的颈椎后路单开门侧块棘突钢板设置在其中一个颈椎10后的状态,棘突固定部4位于棘突100外壁并通过棘突螺钉81固定,第二固定部2 位于侧块102上并通过侧块螺钉82固定。 [0031] FIGS. 3 and 4, in the embodiment of posterior cervical present embodiment a single door side block spinous process plate disposed therein a state of 10 cervical spinous process is located in the fixed portion 4 and the outer wall of the spinous processes 100 through ratchet projecting fixing screw 81, the second fixing part 2 located on the side of the block 102 and is fixed by a screw 82 side block. 本体部11与残余椎板101外壁相扣,卡板5托住残余椎板101的内壁,残余椎板101的头部则设置于卡口53内. Interlocking body portion 11 and the residual lamina of the outer wall 101, an inner wall plate 5 hold the card residual lamina 101, lamina 101 residual head is disposed within the mount 53.

[0032] 结合图5所示,撑开器103由两个中间相互转动连接的第一撑开部104和第二撑开部105组成,卡板5位置调节时,第一撑开部104的前端位于卡板5上,第二撑开部105 的前端位于支板部7上,通过控制第一撑开部104的前端与第二撑开部105的前端的距离, 就能将卡板5位置调到最佳状态。 When [0032] in conjunction with FIG. 5, the expansion portion 103 by the first spreader 104 and the second spreader portion two mutually rotatably connected to the intermediate composition 105, the card position adjusting plate 5, a first portion 104 of the distraction card board 5 is located on the distal end, the distal end portion of the second spreader 105 is positioned on the support plate portion 7, the distance of the front end 105 of the control unit 104 of the first spreader and the second spreader tip end portion, the card will be able to plate 5 position transferred to the best state. 调到合适的位置后用调节螺钉6将卡板5固定,取出撑开器103即可。 Adjustment screw 6 fixing the plate 5 after the card to a suitable location, to remove the distractor 103.

[0033] 实施例2,如图6所示,本实施例中没有卡板和支板部设计,其他结构参考实施例 [0033] Example 2, as shown in FIG. 6, the present embodiment does not support the plate portion and the card board design, other structures Reference Example

Io[0034] 实施例3,如图7所示,本实施例中的卡板5与连接部3是一体成型的,不能调节的,也没有支板部设计。 Io [0034] Example 3 shown in FIG. 7, in the embodiment of the card connector portion 5 and the plate 3 of the present embodiment is integrally formed, can not be adjusted, nor support plate portion design. 其他结构参考实施例1。 Other structures Reference Example 1.

[0035] 实施例4,如图8所示,本实施例中的连接部3沿着长度方向成型有一条形孔31, 植骨块9设置于连接部3上并沿着该条形孔31能移动。 [0035] Example 4, 8, in the present embodiment the connection part 3 embodiment formed along the longitudinal direction has a shaped hole 31, block 9 is provided on the bone connecting portion 3 and along the rectangular hole 31 You can move. 植骨块9端面具有螺钉孔,调节螺钉91穿过条形孔31与螺钉孔连接为一体。 Graft end face 9 has a screw hole 91 through the rectangular hole of the adjusting screw 31 is integrally connected with the screw hole. 本实施例没有支板部设计,其他结构参考实施例1。 The present embodiment does not support plate portion design, other structures Reference Example 1.

Claims (9)

1. 一种颈椎后路单开门侧块棘突钢板,该钢板呈拉伸的Z型,包括第一固定部、第二固定部及连接前述第一固定部和第二固定部的连接部,前述的第一固定部与连接部成一钝角,前述的第二固定部与连接部也成一钝角,其特征在于所述的第一固定部包括置于椎板外壁的本体部及与棘突外壁相适配的棘突固定部,前述的棘突固定部由本体部的末端向上弯折而成并具有供棘突螺钉通过的第一通孔。 An open-door side piece posterior cervical spinous process steel sheet Z-shaped, comprising a first fixing portion stretched, the second fixing portion and a connecting portion connecting the fixing portion of the first and second fixing portions, the first fixing portion and the connecting portion at an obtuse angle, the second fixing portion and the connecting portion is also an obtuse angle, wherein said first fixing portion includes an outer wall disposed lamina and spinous processes of the body portion with an outer wall a fixed portion adapted spinous process, the spinous process of the fixing portion is bent upwardly by the end of the body portion and formed with a first screw through hole for passing the spinous processes.
2.根据权利要求1所述的颈椎后路单开门侧块棘突钢板,其特征在于所述的连接部一侧设有一卡板,该卡板与前述的第一固定部之间形成一供残余椎板卡接的卡口。 2. Posterior cervical according to claim 1 single door side block spinous process plate, wherein a side portion of the connecting plate is provided with a card, the card is formed between a plate for fixing the first portion of the the residue lamina snap bayonet.
3.根据权利要求2所述的颈椎后路单开门侧块棘突钢板,其特征在于所述的卡板沿着连接部长度方向能移动地设置于连接部上。 According to claim 2, wherein the posterior cervical single door side block spinous process plate, wherein said plate along a part length of the card connecting direction movably disposed on the connecting portion.
4.根据权利要求3所述的颈椎后路单开门侧块棘突钢板,其特征在于所述的连接部设置有一供撑开器撑开卡板时作为支点的支板部,该支板部位于卡板下方并靠近第二固定部。 According to claim 3, wherein said posterior cervical single door side block spinous process plate, wherein said connecting portion of the support plate portion is provided for supporting a plate portion as a fulcrum when the distraction distraction card board, card located below and adjacent to the second fixing plate portion.
5.根据权利要求3所述的颈椎后路单开门侧块棘突钢板,其特征在于所述的连接部沿着长度方向成型有一条形孔,对应地,所述的卡板的端部具有能在条形孔内来回移动的凸头部,该凸头部内具有螺孔,一调节螺钉穿过前述的条形孔与该螺孔连接为一体。 The posterior cervical according to claim 3, said single door side block spinous process plate, wherein said connecting portion along the longitudinal direction has a shaped hole formed correspondingly, said end plate having a card in the strip can be moved back and forth nosecone bore, the inner nosecone having a screw hole, a screw through the adjusting hole of the strip is integrally connected with the screw hole.
6.根据权利要求1所述的颈椎后路单开门侧块棘突钢板,其特征在于所述的连接部沿着长度方向成型有一条形孔,一植骨块设置于连接部上并沿着该条形孔能移动。 The open-door side block posterior cervical spinous process steel sheet according to claim 1, wherein said connecting portion has a longitudinal direction forming an elongated hole, a bone block is provided on the connecting portion and along the movable rectangular hole.
7.根据权利要求6所述的颈椎后路单开门侧块棘突钢板,其特征在于所述的植骨块端面具有一螺钉孔,一调节螺钉穿过所述的条形孔与该螺钉孔连接为一体。 7. The posterior cervical according to claim 6 single door side block spinous process plate, wherein said end surface graft having a screw hole, a screw through the rectangular hole of the adjusting screw hole integrally connected.
8.根据权利要求1〜7中任一权利要求所述的颈椎后路单开门侧块棘突钢板,其特征在于所述的第二固定部上成型有一供侧块螺钉通过的第二通孔。 Posterior cervical according to any one of claims 1~7 claim single door side block spinous process plate, characterized in that there is formed a second fixing portion of the second through hole for a screw through the side block .
9.根据权利要求8所述的颈椎后路单开门侧块棘突钢板,其特征在于所述第一固定孔和第二固定孔的孔道为喇叭口状。 Posterior Cervical according to claim 8, said single door side block spinous process plate, wherein the first bore and the second fixing hole fixing hole is flared.
CN2012100060605A 2012-01-10 2012-01-10 Posterior cervical spine single open door side block spinous process steel plate CN102551868A (en)

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PCT/CN2012/000493 WO2013104093A1 (en) 2012-01-10 2012-04-12 Posterior cervical unilateral-open-door lateral-mass spinous process steel plate

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