CN102824234A - 椎间植入物 - Google Patents

椎间植入物 Download PDF

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Publication number
CN102824234A
CN102824234A CN2012101957707A CN201210195770A CN102824234A CN 102824234 A CN102824234 A CN 102824234A CN 2012101957707 A CN2012101957707 A CN 2012101957707A CN 201210195770 A CN201210195770 A CN 201210195770A CN 102824234 A CN102824234 A CN 102824234A
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China
Prior art keywords
insert
implant
intervertebral implant
sidewall
instrument
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CN2012101957707A
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CN102824234B (zh
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L·比德尔曼
W·马蒂斯
O·施瓦岑巴赫
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Biedermann Technologies GmbH and Co KG
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Biedermann Technologies GmbH and Co KG
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
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    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/4465—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
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    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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    • A61F2/00—Filters 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
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    • A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters 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
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T29/00—Metal working
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    • Y10T29/49826—Assembling or joining

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Neurology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)

Abstract

本发明提供了一种椎间植入物，其具有被构造成接合第一椎体的顶表面（2）、被构造成接合第二椎体的底表面（3）以及连接所述顶表面（2）和所述底表面（3）的侧壁（4），所述侧壁限定中空空间（5），并且长形开口（8）延伸穿过所述侧壁（4）进入所述空间中，所述长形开口（8）在圆周方向上具有一定长度；所述植入物还包括：设置在所述空间内的可旋转插入件（10、10′、100），其中所述插入件包括弹性部分（10a、10b、110a、110b），所述弹性部分通过与所述侧壁（4）的摩擦接合将所述插入件保持在所述空间内，并且其中所述插入件包括接合部分（13、113），所述接合部分被构造成与通过所述开口的工具（50）接合。

Description

椎间植入物
技术领域
本发明涉及一种椎间植入物，所述椎间植入物具有被构造成接合第一椎体的顶表面、被构造成接合第二椎体的底表面以及连接所述顶表面和所述底表面的侧壁、由所述侧壁限定的中空空间以及延伸通过所述侧壁进入所述空间中的长形开口。所述植入物还包括由弹力保持在所述空间内的可旋转插入件。所述插入件具有被构造成与通过所述开口的工具接合的接合部分。
背景技术
被构造成与用于插入第一和第二脊椎元件之间的插入装置接合的椎间植入物可从US7,935,148获知。该椎间植入物具有延伸通过侧壁的具有长形的开口。包括接纳部的连接元件被包含在侧壁内。插入装置具有被构造成与植入物主体的连接元件连接的第一端部。第一端部能够在多个取向之间选择性地定位以提供连接。
另一种椎间植入物可从US2010/0094422A1获知。该植入物具有支撑体和在其中的可旋转插入件。也公开了安装器械，所述安装器械用于可拆卸地附连到植入物并且用于与可旋转插入件接合以选择性地允许插入件和支撑体之间的旋转。
发明内容
本发明的目的是提供一种椎间植入物，所述椎间植入物在设计和使用方面被简化并且考虑到可用于植入物在椎体之间的最终定位的可能性。
该目的由这样一种椎间植入物实现，其具有被构造成接合第一椎体的顶表面、被构造成接合第二椎体的底表面以及连接所述顶表面和所述底表面的侧壁、由所述侧壁限定的中空空间、以及延伸穿过所述侧壁进入所述空间中的长形开口，所述长形开口在圆周方向上具有一定长度；所述植入物还包括：设置在所述空间内的可旋转插入件，其中所述插入件包括弹性部分，所述弹性部分通过与所述侧壁的摩擦接合将所述插入件保持在所述空间内，并且其中所述插入件包括接合部分，所述接合部分被构造成与通过所述开口的工具接合。
该椎间植入物具有紧凑设计。植入物的插入程序简单且安全，原因是植入物和插入工具之间的连接可以容易地固定和松动。当工具和植入物之间的连接松动时，可以通过围绕插入件旋转植入物将植入物移动到期望位置。在旋转期间，该椎间植入物由插入装置安全地保持并且防止从工具断开。
该椎间植入物的设计允许植入物的中空内部空间的大部分可用于融合。
现有的椎间植入物可以用插入件进行修改和升级。
附图说明
本发明的特征和优点将从附图的描述变得明显。在附图中：
图1显示了椎间植入物的实施例和用于插入椎间植入物的工具的透视图。
图2显示了图1的一部分的放大图。
图3显示了图2的放大部分的分解透视图。
图4显示了为椎间植入物提供的插入件的透视图。
图5显示了图4的插入件的另一透视图。
图6显示了在插入插入件之前的步骤中椎间植入物的俯视透视图。
图7显示了安装有插入件的椎间植入物的俯视透视图。
图8a）显示了植入物的横截面图，其中插入件处于由第一限位件限制的第一位置。
图8b）显示了椎间植入物的横截面图，其中插入件处于由第二限位件限制的第二位置。
图9a）至9d）显示了将工具与椎间植入物接合并且旋转植入物的步骤的示意性横截面图。
图10a）至10f）示意性地显示了将椎间植入物插入并且定位在两个椎体之间的步骤。
图11显示了根据第二实施例的椎间植入物的插入件的透视俯视图。
图12显示了根据第二实施例的椎间植入物的俯视图，其中与椎间植入物相连的工具处于第一位置中。
图13显示了根据第二实施例的椎间植入物的俯视图，其中与椎间植入物相连的工具处于第二位置中。
图14显示了根据第三实施例的椎间植入物的俯视透视图，其中插入件还未安装。
图15显示了根据第三实施例的图14的椎间植入物的俯视图，其中插入件被安装并且在第一状态下工具连接到椎间植入物。
图16显示了椎间植入物，其中根据图15的工具处于第二状态。
图17显示了根据第四实施例的椎间植入物的插入件的俯视透视图。
图18显示了根据第四实施例的椎间植入物的插入件的仰视透视图。
图19显示了具有根据第四实施例的插入件的椎间植入物的俯视图，并且与椎间植入物相连的工具处于第一位置。
图20显示了椎间植入物的俯视图，其中根据图19的工具处于第二位置。
图21显示了根据第五实施例的带有插入件的椎间植入物的透视俯视图，其中与椎间植入物相连的工具处于第一位置。
图22显示了与根据第五实施例的椎间植入物相对应的插入件的透视图。
图23显示了与根据第五实施例的椎间植入物相对应的插入件的另一透视图。
图24显示了根据第五实施例的椎间植入物不具有插入件的透视图。
图25显示了根据第五实施例的椎间植入物不具有插入件的另一透视图。
具体实施方式
图1显示了椎间植入物1的第一实施例和用于插入椎间植入物1的工具50的透视图。特别地如图1至3中所示，椎间植入物包括顶面2、底面3以及连接顶面2和底面3的侧壁4。侧壁4限定内部中空部分5。顶面2和底面3具有开口使得内部中空部分5延伸到顶面2和底面3中。因此，顶面2和底面3由侧壁4的上缘和下缘形成。此外，可以提供将内部中空部分5分成两个部分的中心壁6。侧壁4的高度使得植入物可以插入第一椎体和第二椎体之间。植入物的高度可以围绕中心壁6最大并且可以朝着外端部减小。齿7或其它接合部分从顶面2和底面3突出以用于接合椎体的端板。
植入物1具有两个相对长侧4a和连接长侧4a的两个相对短侧4b。短侧4b是倒圆的。侧壁4的轮廓可以为弧形，例如，它可以具有肾形或香蕉形。
特别地在图2和3中可以看到，完全延伸通过侧壁4进入内部中空部分5中的开口8设在侧壁4中。开口8具有长形并且优选地沿着短侧4b在圆周方向上延伸一定长度。开口8可以具有大致矩形轮廓并且在顶面2和底面3之间在竖直方向上大致位于侧壁的中心。
如图6中所示，引导槽9围绕长形开口8设在侧壁14的内壁处。引导槽9从长形开口的两端延伸到侧壁的每个长侧4a中。引导槽9在竖直方向上（即，在从底面3至顶面2的方向上）的高度等于或大于长形开口8在竖直方向上的高度。引导槽9在圆周方向上的长度尺寸被确定成使得图1至7中所示的插入件10可以容纳在该引导槽中并且被引导。当插入件10插入内部中空部分5中并且放置到引导槽9中时，引导槽9防止插入件10掉出。
根据第一实施例的植入物1的插入件10是大致中空的圆柱形元件。圆柱轴线C限定旋转轴线。穿过中空圆柱的壁的同轴条孔11提供第一挠性、大致半球形臂10a和第二挠性、大致半球形臂10b，所述臂可以略微朝着彼此压缩，由此缩窄条孔11。在与条孔11相对的位置，插入件10包括实心部分12，例如在挠性臂10a、10b之间延伸的立方形部分。实心部分12的尺寸使得臂10a、10b的挠性不受限制。实心部分12具有用于与工具50接合的凹部13。凹部13例如可以是螺纹孔。
第一挠性臂10a在邻近自由端的其外壁处具有呈第一突起14a的形式的第一限位件。第二挠性臂10b在邻近自由端的其外壁处具有呈第二突起14b的形式的第二限位件。如图8a和8b中所示，插入件10将其圆柱轴线C提供用于植入物的旋转轴线。因而，当插入件10插入时，它可以相对于植入物在由第一突起14a在内壁处的抵接限定的第一位置（图8a）和由第二突起14b在内壁处的抵接限定的第二位置（图8b）之间旋转。第一突起14a处于远离条孔11的位置使得当插入件10在引导槽9内并且第一突起14a抵接植入物的侧壁的内壁时，凹部13位于开口8的与第一突起14a相对的端部。第二突起14b处于在第二挠性臂10b的自由端的位置，使得当突起14b抵接植入物1的侧壁4的相对内壁时凹部13在长形开口8的另一端部处。
插入件10的外半径大致对应于引导槽的半径。插入件的总尺寸使得当挠性臂10a、10b被略微压缩时，插入件10可以插入并且安置在植入物的引导槽9中。插入件10由引导槽9引导并且由挠性臂10a、10b和植入物的内壁之间的摩擦力保持。
现在将参考图1至8解释工具50。它包括连接到驱动轴52的手柄51，所述驱动轴具有用于与凹部13接合的端部分53。在所示的实施例中，端部分53是接合螺纹孔的螺纹端部分。驱动轴52能够在连接到计数器保持部分55的套筒54内旋转。套筒的端部分56以适合于侧壁4的短侧4b的外壁的曲率的曲率凹形地弯曲。然而工具不限于所示的具体例子。它可以具有不同的构造。
现在将参考图9a）至9d）解释工具和植入物之间的连接。当插入件10插入植入物中时，如图9a）中所示，凹部13面对开口8。凹部13与驱动轴52的端部分53接合。在螺纹孔和螺纹端部分的情况下，将端部分拧接到孔中导致植入物的短侧4b夹紧在插入件和工具50的套筒54的端部分56之间。植入物和工具之间的连接被固定。螺纹连接的略微松动允许插入件和工具一起相对于植入物旋转。所述旋转在两个方向上分别由突起14a、14b在侧壁4处的抵接所限制。
包括插入件的植入物1由生物相容材料制造。例如，植入物可以由不锈钢或钛或生物相容金属合金（例如镍钛合金，例如镍钛诺）制造，或者可以由生物相容塑性材料（例如PEEK（聚醚醚酮））制造。
现在将参考图10a）至10f）描述手术期间植入物的使用。图10a）至10f）示意性地显示了用于将椎间植入物插入并且定位在相邻椎骨的两个锥体之间的空间中的步骤。首先，将工具50连接到植入物。插入件10处于这样的位置使得凹部13在开口8的纵向方向上大致定位在长形开口8的中心。通过上紧插入件和工具之间的连接，植入物1固定到工具50。然后，如图10a）中所示，将植入物1引入两个相邻椎骨之间的椎间空间中，所述椎骨中的一个在图中被显示为椎骨200。与工具50相对的植入物的窄侧4b是前导侧。在所示的方法中，使用进出锥体之间的空间的后侧方途径将椎间植入物1引入锥体之间的空间中。
植入物1和工具50一受到阻力并且不能进一步推动，如图10b）中所示，就通过回拧驱动轴略微松动植入物1和工具之间的固定。对夹紧进行的这种松动使得植入物1能够围绕插入件10的圆柱轴线C旋转。如图10c）和10d）中所示，植入物1围绕插入件10的圆柱轴线旋转使得长形开口8沿着插入件10的凹部13移动。然后，如图10e）中所示，植入物移动到它的最终位置。如图10f）中所示，其后，通过从带螺纹的凹部13旋松驱动轴断开工具50并将其去除。
由于工具可以容易地连接到植入物以及从植入物分离，因此简化了植入物的操作。在植入期间，植入物安全地连接到工具并且不能脱离。
此外，插入件的设计允许大部分内部中空部分可用于融合。插入件10伴随植入物并且在其中占据很小的空间。
图11至13示出了植入物的第二实施例。植入物1′与第一实施例的植入物1的区别在于插入件的设计。第二实施例的插入件10′与第一实施例的插入件10的区别在于限位件的构造。植入物和插入件的其它部分与第一实施例相同。将不重复它们的描述。插入件10′用仅仅一个单突起14代替分别设在挠性臂处的两个独立限位件，所述单突起由第一挠性臂10a的加厚端部分形成。加厚端部分14沿着插入件10′的轴向长度延伸并且邻近条孔11设置。借助于加厚端部分14，挠性臂10a的端部处的外径大于挠性臂10b处的外径。加厚端部分的尺寸使得它可以在如图12和13中所示的两个位置之间限制植入物的旋转。当插入件10′处于第一位置时，插入件的凹部13大致处于长形开口8的在开口的纵向方向上的中心处。加厚端部分14抵接侧壁4的长侧4a中的一个。工具50和植入物之间的连接是大致直的，如图12中所示。当插入件10′相对于植入物1′旋转大约90°时，加厚端部分14抵接侧壁的长侧4a中的相对的另一个并且插入件10′的凹部13处于长形开口的与加厚端部分14相对的一个端部。工具和植入物1′之间的连接是大致垂直的，如图13中所示。
在图14至16中示出了植入物的第三实施例。植入物1〞与第一实施例的植入物的区别在于引导槽的位置。引导槽90由在侧壁4的内壁处彼此相对地定位在长侧4a的区域中的两个槽部分组成。引导槽90的槽部分位于离长形开口8一定距离处。当插入件10插入内部中空部分5中时，挠性臂10a、10b的一部分分别被接收在引导槽90中。在图15中可以看到，引导槽90的位置使得当插入件被插入时，在凹部13和开口8之间存在距离。
图15显示了工具50的驱动轴52的端部分53与插入件10的凹部13的接合。由于在插入件和开口8之间有距离，因此连接未被固定并且植入物可以围绕插入件10旋转。通过工具和插入件的进一步接合，通过略微压缩挠性臂10a、10b将插入件牵引到抵靠开口使得植入物和工具之间的连接被固定。
植入物1〞也可以配备有根据图11至13的插入件10′。
在图17至20中显示了植入物的第四实施例。根据第四实施例的植入物1″′包括插入件100，所述插入件与先前实施例的插入件10和10′的区别在于它可以被安装成使得插入件的挠性部分面朝着长形开口。插入件100与先前实施例中一样是大致中空的圆柱形部件，具有提供两个挠性臂110a、110b的条孔111。与条孔111相对，实心部分112延伸到挠性臂110a、110b之间的空间中。实心部分112具有用于工具的接合部分113，所述接合部分可以是螺纹通孔。在背离条孔111的外侧，插入件100包括突起114，所述突起从螺纹通孔113非对称地延伸到第一挠性臂110a侧。突起114用作限位件以限制插入件100相对于植入物在两个方向上的旋转。插入件100还包括圆形凹部115，所述圆形凹部设在条孔的允许工具50的端部分53被引导通过其中的位置。
图19和20显示了在其中安装有插入件100的植入物1″′的俯视图。插入件100被安装成使得挠性臂110a、110b朝着开口8定向。因而，螺纹通孔113与开口8相距一定距离。工具50的驱动轴52的端部分53被引导通过长形开口8并且接合螺纹通孔113。圆形凹部115的尺寸使得端部分53可以穿过其中。当端部分53和螺纹通孔113之间的螺纹连接被上紧时，挠性臂110a、110b可被略微压缩并且被牵引到抵靠开口8。由此，植入物和工具之间的连接被固定。松动该连接则允许植入物旋转。如图19中所示，当突起114抵接侧壁的长侧4a中的一个时，植入物在第一方向上相对于工具的运动受到限制。在该位置，螺纹通孔113大致指向长形开口8的中心。当植入物相对于工具旋转时，突起114的另一部分抵接侧壁4的长侧4a中的另一个以限制在第二方向上的旋转运动。运动的范围为大约90°。
图21至25示出了植入物的第五实施例。其中与前述的实施例相同或类似的部件和部分采用相同的附图标记来指示，因此将不重复对它们的描述。在该实施例中，插入件1000上的突起14b′在周向上远离条孔11的位置处布置在臂10b上。突起14b′所在的位置这样选择：即当插入件1000相对于植入物旋转而进入类似于图8b所示的端部位置时，使得突起14b′卡持在槽9中。这样就可为外科医生或其他操作者提供了已达到该端部位置的反馈。
此外，实心部分12′的与挠性臂10a、10b的内壁相面对的侧壁均具有弯曲凹槽12a，以便于插入件1000在植入物1″″的内壁之间的插入。
植入物1″″还可具有在侧壁4中的长形开口80以及额外的槽90a、90b。特别地，例如，在一长侧4a上可具有额外的长形开口80以允许骨材料和脉管向内生长。同时，在长侧4a上的槽90a、90b可用于易于将插入件1000插入到内部中空部分5中。在这些实施例中，一旦插入件1000在所述槽90a、90b的位置处被插入到内部中空部分5中，则可将插入件1000相对于植入物1″″的其余部分偏转入槽90中。
实施例的修改是可能的。植入物的轮廓和形状可以不同于所示的例子。例如，轮廓可以具有任何其它形状，它可以为圆形、矩形或卵形等。侧壁4的高度可以在整个植入物上是恒定的。中心壁可以被省略。也能够通过为没有这样的开口的现有椎间植入物提供如上所述的长形开口和引导槽以及插入件而适应性修改现有椎间植入物。
插入件不是必须具有限位件。当工具50连接到植入物时，工具的端部分53在长形开口8的端部处的抵接提供相对运动的限制。然而，当工具还未被连接时，一旦插入件插入植入物中，限位件可用于限制插入件的运动。各实施例的构造可以互换。例如，能够在所示的任何实施例中具有带两个槽部分90的设计。用作限位件的突起的位置和形状可以变化。特别地，形状可以是不同的。长形开口8可以设在另一个位置和/或可以提供若干开口。
插入件和工具之间的连接不需要是螺纹连接。它可以是可以容易固定和松动的任何其它连接，例如卡扣式连接。

Claims (17)

1.一种椎间植入物，其具有被构造成接合第一椎体的顶表面（2）、被构造成接合第二椎体的底表面（3）以及连接所述顶表面（2）和所述底表面（3）的侧壁（4），所述侧壁限定中空空间（5），并且长形开口（8）延伸穿过所述侧壁（4）进入所述中空空间中，所述长形开口（8）在圆周方向上具有一定长度；
所述植入物还包括：
设置在所述中空空间内的能够旋转的插入件（10、10′、100），其中所述插入件包括弹性部分（10a、10b、110a、110b），所述弹性部分通过与所述侧壁（4）的摩擦接合将所述插入件保持在所述中空空间内，并且其中所述插入件包括接合部分（13、113），所述接合部分被构造成与通过所述长形开口的工具（50）接合。
2.根据权利要求1的椎间植入物，其中，所述弹性部分包括接合所述侧壁（4）的两相对内壁部分的两个挠性臂（10a、10b、110a、110b）。
3.根据权利要求1或2的椎间植入物，其中，所述插入件（10、10′、100）给所述椎间植入物提供旋转轴线（C），所述旋转轴线延伸通过所述顶表面（2）和所述底表面（3）。
4.根据权利要求1至3之一的椎间植入物，其中，所述插入件（10、10′、100）在引导槽（9、90）中被引导。
5.根据权利要求4的椎间植入物，其中，所述引导槽（9、90）设在所述侧壁（4）的内壁部分处。
6.根据权利要求4或5的椎间植入物，其中，所述引导槽（9）围绕所述长形开口设置。
7.根据权利要求4至6之一的椎间植入物，其中，所述引导槽（9）包括彼此大致相对布置的两个引导槽部分。
8.根据权利要求1至7之一的椎间植入物，其中，所述插入件（10、10′、100）为大致圆柱形，具有在轴向方向上延伸穿过壁的条孔（11、111）。
9.根据权利要求8的椎间植入物，其中，所述接合部分是具有用于所述工具的接合结构的开口（13），所述开口背离所述条孔（11）。
10.根据权利要求8的椎间植入物，其中，所述接合部分是具有用于所述工具的接合结构的开口（113），所述开口面朝着所述条孔（11）。
11.根据权利要求1至10之一的椎间植入物，其中，至少一个限位件（14a、14b、14、114）被提供来限制所述插入件在所述中空空间内的旋转。
12.根据权利要求11所述的椎间植入物，其中，所述至少一个限位件将所述植入物相对于所述插入件的旋转限制到大约90°。
13.根据权利要求1至11之一的椎间植入物，其中，所述侧壁（4）限定所述植入物的高度，并且其中所述插入件（10、10′、100）在竖直方向上的尺寸小于所述植入物的高度。
14.根据权利要求1至12之一的椎间植入物，其中，所述侧壁（4）具有沿着所述长形开口的曲率，并且其中能够旋转的所述插入件（10、10′、100）具有外壁，所述外壁具有的曲率对应于所述侧壁的曲率。
15.根据权利要求1至14之一的椎间植入物，其中，至少一个第二长形开口穿过所述侧壁而延伸入所述中空空间。
16.根据权利要求1至15之一的椎间植入物，其中，所述侧壁的内壁包括至少一个槽以便于所述插入件插入所述中空空间中。
17.根据权利要求11至16之一的椎间植入物，其中，所述至少一个限位件之一与所述条孔相间隔开。
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CN102824234B (zh) 2016-02-24
ES2555552T3 (es) 2016-01-04
JP2013000595A (ja) 2013-01-07
EP2535023B1 (en) 2017-10-11
EP2535021A1 (en) 2012-12-19
JP5986435B2 (ja) 2016-09-06
KR20120138705A (ko) 2012-12-26
EP2535023A1 (en) 2012-12-19
US20130023937A1 (en) 2013-01-24

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