CN107126301B - 一种用于侧方入路治疗腰椎滑移的椎间融合器 - Google Patents

一种用于侧方入路治疗腰椎滑移的椎间融合器 Download PDF

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CN107126301B
CN107126301B CN201710446652.1A CN201710446652A CN107126301B CN 107126301 B CN107126301 B CN 107126301B CN 201710446652 A CN201710446652 A CN 201710446652A CN 107126301 B CN107126301 B CN 107126301B
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face
cooperation
locking
leaf
installation cavity
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CN107126301A (zh
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吴爱悯
陈栋
林仲可
徐晖
林焱
倪文飞
王向阳
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Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
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Abstract

本发明公开了一种用于侧方入路治疗腰椎滑移的椎间融合器,其包括支撑框体,支撑框体上下端面安装有上下叶片,支撑框体中还安装有可驱动上下叶片沿椎间轴向撑开的撑开组件、以及驱动上下叶片沿椎间水平方向前后移动的正位移动组件,上下叶片还分别延伸有侧叶,侧叶上设有可供固定钉穿过的固定孔,上部侧叶的固定钉由下至上并朝后方倾斜穿入对滑移的腰椎有一定的后推力有助于腰椎滑移复位,下部侧叶的固定钉则由上至下向前方穿入,对腰椎有前移推力有助于滑移的腰椎复位,该椎间融合器既可以解决椎间间距问题还可以解决腰椎前后滑移导致的移位问题,且该椎间融合器操作方便,给病患造成的伤痛小,更为安全可靠。

Description

一种用于侧方入路治疗腰椎滑移的椎间融合器
技术领域
本发明属于治疗腰椎滑移的椎间融合器技术领域,尤其是一种用于侧方入路治疗腰椎滑移的椎间融合器,可以对腰椎滑移起到撑开和滑移复位的作用。
背景技术
椎间融合器应用于腰椎间融合术,对治疗椎间盘源性腰痛具有重要作用。目前,椎间融合术可在上、下节椎骨之间椎间隙中植入,通过可撑开式椎间融合器如中国专利号为:ZL201620502029.4的文件所公开,其撑开主体包括固定块和可调撑块,可调撑块的尾部与固定块尾部铰接,撑开机构调节可调撑块来撑开椎骨间隙,并于椎骨的椎间隙中植骨,有效恢复椎间隙高度与椎间孔容积;但针对上、下节椎骨发生前后移位的患者来说,治疗时,通常采用后方入路椎间融合术,椎间融合器从后路进入椎间隙,通过上、下骨钉固定,从而对前后移位的椎骨有复位作用;但后路椎间融合术存在对人体玻璃肌肉软组织损伤大、创伤大、出血大等伤害。
如中国专利号为:ZL201510451399.X的《用于植入脊椎的椎间融合器》文中,提及现有的融合器,前方用只能用于前方,侧方用只能用于侧方,实际手术中,侧方用不能替代前方用,同理,后方用亦不能替代侧方或前方用。为了减少医疗消耗品的费用,该文件设计了一种能从脊椎的正面、侧面、及倾斜面插入的椎间融合器,其虽可以从侧方插入,但其亦不具有调节上、下节椎骨发生前后移位的复位功能,如果要实现该功能,仍然需要与后方入路的椎间融合器配合使用实现。
发明内容
为了克服现有技术的不足,本发明提供了一种用于侧方入路治疗腰椎滑移的椎间融合器,该椎间融合器对上、下节椎骨具有外撑和前后滑移复位效果。
为了实现上述目的,本发明采用的技术方案是:一种侧方入路治疗腰椎滑移的椎间融合器,包括本体框、撑叶和固定钉,本体框包括植入端和尾部端,植入端和尾部端之间通过前侧墙以及后侧墙连接形成具有中空腔体的框体结构,尾部端设有与中空腔体联通的植骨孔,撑叶分布于本体框上下端面,撑叶具有与中空腔体联通的中心孔,其特征在于:本体框内滑动配合有驱动撑叶朝上下端面外扩的外撑结构、以及滑动配合有驱动两个撑叶分别朝前侧墙和后侧墙移动的复位移动结构,所述中空腔体包括位于本体框上下端面处的两个端口,上、下端面处的两个端口之间还分布有与撑叶配合的安装腔、与外撑结构配合的外撑轨道、与复位移动结构配合的复位移动轨道,所述撑叶与安装腔的左右内壁紧密配合,撑叶与安装腔的上下内壁间隙配合,所述撑叶靠近本体框尾部端的一侧设有侧叶,侧叶设有固定孔,位于上端面的侧叶固定孔中配合有朝后侧上方倾斜的固定钉,位于下端面的侧叶固定孔中配合有朝前侧下方倾斜的固定钉。上述椎间融合器从上下节椎骨侧方进入椎间隙后,可以通过外撑结构使得撑叶朝上下端面外扩撑开,还可以通过复位移动结构驱动上下的两个撑叶沿水平方向分别做朝前侧墙、后侧墙方向移动,从而对上下节椎骨的滑移有复位效果。
进一步的,所述外撑结构包括外撑架,外撑架设有与外撑轨道滑移配合的导条,外撑架的上下端面分别设有2组抵接斜面,2组抵接斜面分别位于外撑架左侧端和外撑架右侧端,上下端面各自的2组抵接斜面均朝左侧端倾斜延伸,撑叶内端面设有相应的配合斜面,外撑架设有操作段,操作段与本体框的尾部端形成螺纹旋接配合,外撑架的抵接斜面随着操作段的螺纹正向移动而与配合斜面抵接驱动撑叶外撑移动形成撑叶外扩结构,所述复位移动结构包括复位支架,复位支架也设有与复位移动轨道配合的导条,复位支架上设有2组楔形块,2组楔形块上均设有楔形面,2组楔形面分别各自朝向后侧墙、前侧墙方向且均由左侧端向右侧端倾斜延伸,撑叶的内端面设有与各自的楔形面配合的斜面凸块,斜面凸块的斜面构成凸块配合面,凸块配合面与楔形面抵接配合,复位支架也设有与本体框的尾部端螺纹旋接的操作段,上下端面的两个撑叶通过楔形面随着该操作段的正向螺纹移动而与斜面凸块抵接驱动两个撑叶分别朝前侧墙、后侧墙方向移动形成撑叶复位结构。上述外撑结构通过上下端面的抵接斜面配合实现撑叶外扩,上端面的抵接斜面和下端面的抵接斜面由左侧端向右侧端朝上端面或下端面倾斜形成,当外撑架的操作段回旋时,外扩的撑叶通过上下节椎骨间的挤压作用而实现复位,而复位支架上的楔形面则前后两侧同向倾斜延伸,当外力驱动复位支架朝左侧端移动时,上下端面的撑叶分别朝前侧端和后侧端移动对上下节椎骨起到滑移调整复位作用。
进一步的,所述复位支架和外撑架均呈中空框体结构,且复位支架和外撑架呈上下堆叠设置,所述复位移动轨道和外撑轨道呈上下分布且分别与复位支架的导条、外撑架的导条适配,所述外撑架的左端部和右端部均设有抵接块,所述抵接斜面设置在抵接块的上端面或下端面处,所述复位支架的左端部和右端部均设有楔形块,所述楔形面设置在楔形块的左侧面或右侧面,所述抵接块位于左右端部的楔形块所形成的空间之内,且抵接块距离楔形块之间留有空隙,该空隙包括前端空隙、后端空隙、左侧面空隙和右侧面空隙。上述复位支架和外撑架呈上下堆叠,且复位支架上的楔形块位于外侧便于朝前侧墙或后侧墙方向水平移动,而外撑架上的抵接斜块位于内侧,而且抵接斜块与楔形块之间留有空隙,即抵接斜块的前端与楔形块之间留有空隙,抵接斜块的后端与楔形块之间也留有空隙,便于该外撑架的前后移动和复位支架之间的前后移动互不干扰。
进一步的,所述外撑架的后侧面设有安装孔,外撑架的操作段包括螺纹部和连接轴部,外撑架的连接轴部一端穿过外撑架的安装孔后经铆钉固定,外撑架的连接轴部另一端与螺纹部一体连接,所述复位支架的后侧面也设有安装孔,复位支架的操作段包括螺纹部和连接轴部,复位支架的连接轴部一端穿过外撑架的安装孔后经铆钉固定,复位支架的连接轴部另一端与复位支架的螺纹部一体连接,本体框的尾部端设有2个分别与外撑架的操作段、复位支架的操作段螺纹配合的螺纹孔。操作段通过螺纹部与本体框连接,操作段通过连接轴部和铆钉活动安装于外撑架上,操作段通过螺纹旋转驱动外撑架前后移动,复位支架与其操作段安装结构同上设置。
进一步的,所述侧叶还设有固定钉的锁止结构,锁止结构包括锁止钉,侧叶设有可供锁止钉容纳的锁止孔,锁止孔侧壁局部与固定孔联通,锁止钉一端穿过锁止孔经铆钉转动连接于侧叶上,锁止钉的侧边包括凸弧段和经挖切形成内凹弧段,内凹弧段与位于相邻的固定孔中的固定钉头部的侧边弧形面适配且该内凹弧段与固定钉头部的侧边弧形面之间形成间隙配合,锁止钉的凸弧段与固定钉头部的侧边弧形面形成紧密挤压配合。位于上端的固定钉则朝上向外倾斜设置,位于下端的固定钉朝下向外倾斜设置,倾斜的固定钉穿入椎骨时对于移位的椎骨有一定的正位推力趋势,再配合撑叶的前移或后移调整具有更好的正位作用,为了避免固定钉松动,侧叶的固定孔处还设置了锁止钉对其紧固,锁止孔局部与固定孔联通,即锁止孔的局部弧段与固定孔的局部弧段形成重叠区,而当锁止钉的完整凸弧段转到重叠区时,即对固定钉有挤压紧配效果,当锁止钉的凹弧段转到重叠区时,凹弧段的凹腔刚好可以供固定钉穿过,故该锁止结构可以方便固定钉穿入,穿入后可以通过转动锁止钉通过其凸环段对固定钉实现紧配定位作用。
进一步的,所述撑叶包括本体结构,本体结构右侧端折弯朝上或朝下延伸形成所述侧叶,本体结构内端面的左右侧分别设有与安装腔的左腔室、安装腔的右腔室形成限位配合的左侧限位条和右侧限位条,左侧限位条呈L型结构,左侧限位条与本体结构内端面的左侧面之间形成U型的限位槽,安装腔左腔室内壁设有与限位槽配合的定位凸筋,定位凸筋距离限位槽上端或下端内壁之间留有间隙,定位凸筋与限位槽形成沿植骨孔轴向的定位配合。撑叶通过翼片安装于本体框的安装腔中,撑叶前端和后端分别与安装腔的前后腔室定位配合。
进一步的,所述撑叶包括本体结构,本体结构右侧端折弯朝上或朝下延伸形成所述侧叶,本体结构内端面的左右侧分别设有与安装腔的左腔室、安装腔的右腔室形成限位配合的左侧限位条和右侧限位条,左侧限位条呈L型结构,左侧限位条与本体结构内端面的左侧面之间形成U型的限位槽,安装腔左腔室内壁设有与限位槽配合的定位凸筋,定位凸筋距离限位槽上端或下端内壁之间留有间隙,定位凸筋与限位槽形成沿植骨孔轴向的定位配合,所述撑叶还包括设置在本体结构外侧端面上的防滑凸点结构,防滑凸点结构呈金字塔状连续分布。撑叶上的金字塔状凸点结构可以增大接触面,起到更好的防滑效果。
采用上述方案,本发明中,该椎间融合器既可以解决椎间间距问题还可以解决腰椎前后滑移导致的移位问题,且该椎间融合器操作方便,给病患造成的伤痛小,更为安全可靠。
下面结合附图对本发明作进一步描述。
附图说明
附图1为本发明具体实施例外观结构图;
附图2为本发明具体实施例结构爆炸图;
附图3为本发明具体实施例俯视图;
附图4为本发明具体实施例附图3中的A-A剖视图,显示了外撑结构的内部抵接斜面与配合斜面的对应结构;
附图5为本发明具体实施例侧视图;
附图6为本发明具体实施位于本体框上端面的撑叶内端面的结构示意图;
附图7为本发明具体实施例的复位移动结构与外撑结构的上下堆叠安装结构示意图;
附图8为本发明具体实施例本体框的俯视图;
附图9为本发明具体实施例附图8中的C-C剖视图,显示了本体框内部的安装腔、复位移动轨道、外撑轨道的分布结构;
附图10为本发明具体实施例附图1中局部I的放大图;
附图11为本发明具体实施例插入到上下节椎骨之间的结构示意图;
本体框1、植入端11、尾部端12、植骨孔121、螺纹孔122、前侧墙13、后侧墙14、中空腔体15、端口151、安装腔152、复位移动轨道153、外撑轨道154、
撑叶2、中心孔21、侧叶22、固定孔221、配合斜面23、斜面凸块24、凸块配合面241、左侧限位条26、右侧限位条27、锁止孔28、防滑凸点结构29、定位凸筋1521、固定钉3、
外撑结构:外撑架4、导条41、抵接斜面42、操作段44、螺纹部441、铆钉442、
复位移动结构:复位支架5、导条51、前移楔形面52、后移楔形面53、操作段54、螺纹部541、铆钉542、
锁止钉6、凸弧段61、内凹弧段62。
具体实施方式
本发明的具体实施例如图1-11所示是侧方入路治疗腰椎滑移的椎间融合器,包括本体框1、撑叶2和固定钉3,本体框1包括植入端11和尾部端12,植入端11和尾部端12之间通过前侧墙13以及后侧墙14连接形成具有中空腔体15的框体结构,尾部端12设有与中空腔体15联通的植骨孔121,撑叶2分布于本体框1的上、下端面,撑叶2具有与中空腔体15联通的中心孔21,本体框1内滑动配合有驱动撑叶2朝上或下端面外扩的外撑结构、以及滑动配合有驱动撑叶2朝前侧墙13移动及回位的复位移动结构,中空腔体15包括位于本体框1上、下端面处的两个端口151,上、下端面处的两个端口151之间还分布有与撑叶2配合的安装腔152、与外撑结构配合的外撑轨道154、与复位移动结构配合的复位移动轨道153,撑叶2与安装腔152的左右内壁紧密配合,(本文中涉及的左侧或左端为植入端11方向,右侧或右端即为尾部端12方向,前侧或前端指前侧墙13方向,后侧或后端为后侧墙14方向),撑叶2与安装腔152的上下内壁间隙配合,撑叶2靠近本体框1尾部端12的一侧设有侧叶22,侧叶22设有固定孔221,位于上端面的侧叶22固定孔221中配合有朝后侧上方倾斜的固定钉3,位于下端面的侧叶22固定孔221中配合有朝前侧下方倾斜的固定钉3。
上述外撑结构包括外撑架4,外撑架4设有与外撑轨道154滑移配合的导条41,外撑架4的上、下端面分别设有2组抵接斜面42,2组抵接斜面42分别位于外撑架4左侧端和外撑架4右侧端,左侧端上部和下部均有2个抵接斜面42,右侧端上部和下部也均有2个抵接斜面42,上、下端面的抵接斜面42分别由左侧端沿右侧端方向朝上或下侧倾斜延伸形成,撑叶2内端面设有相应的配合斜面23,外撑架4设有操作段44,操作段44与本体框1的尾部端12的螺纹孔122形成螺纹旋接配合,外撑架4的抵接斜面42随着操作段44的螺纹正向移动而与配合斜面23抵接驱动撑叶2外撑移动形成撑叶外扩结构,抵接斜面42当外撑架4随着操作段44的瞬时针旋转而向前移动时,外撑架4通过其抵接斜面42挤压撑叶2内端面的配合斜面23使得两个撑叶2分别朝上、朝下继续外扩,当外撑架4随着操作段44逆时针回转时,外撑架4的抵接斜面42撑叶2受到上下节椎骨的挤压作用而朝内侧回移退回原来位置,实现撑叶2的回位。
上述复位移动结构包括复位支架5,复位支架5也设有与复位移动轨道153配合的导条51,复位支架5上设有2组楔形块,2组楔形块上分别设有前移楔形面52和后移楔形面53,前移楔形面52和后移楔形面53分别朝向后侧墙14、前侧墙13方向,且前移楔形面52和后移楔形面53均由左侧端朝右侧端倾斜延伸,本实施例中的4个楔形块分别位于复位支架5前侧壁和后侧壁上,撑叶2的内端面设有与各自的前移楔形面52、后移楔形面53配合的斜面凸块24,斜面凸块24的斜面构成凸块配合面241,凸块配合面241与楔形面52抵接配合,复位支架5也设有与本体框1的尾部端12另一个螺纹孔122螺纹旋接的操作段54,上下两个撑叶2通过前移楔形面52和后移楔形面53随着该操作段54的正向螺纹移动而与斜面凸块24抵接驱动两个撑叶2分别朝前侧墙13、后侧墙13方向移动形成撑叶复位结构。
上述复位支架5和外撑架4均呈中空框体结构,且复位支架5和外撑架4呈上下堆叠设置,复位移动轨道153和外撑轨道154呈上下分布且分别与复位支架5的导条51、外撑架4的导条41适配,外撑架4的左端部和右端部均设有抵接块,抵接斜面42设置在抵接块上,复位支架5的楔形面设置在楔形块上,抵接块位于左右端部的楔形块所形成的空间内侧,且抵接块距离楔形块之间留有空隙,该空隙包括前端空隙、后端空隙、左侧面空隙和右侧面空隙,该空隙为撑叶2的上下外扩和向前向后复位移动提供了移动空间。
上述外撑架4的后侧面设有安装孔,外撑架4的操作段44包括螺纹部441和连接轴部,外撑架4的连接轴部一端穿过外撑架4的安装孔后经铆钉442固定,外撑架4的连接轴部另一端与螺纹部441一体连接,复位支架5的后侧面也设有安装孔,复位支架5的操作段54包括螺纹部541和连接轴部,操作段54的连接轴部一端穿过复位支架5的安装孔后经铆钉542固定,该连接轴部的另一端与螺纹部541一体连接,本体框1的尾部端12设有2个分别与外撑架4的操作段44、复位支架5的操作段54螺纹配合的螺纹孔122。
上述侧叶22还设有固定钉3的锁止结构,锁止结构包括锁止钉6,侧叶22设有可供锁止钉6容纳的锁止孔28,锁止孔28侧壁局部与固定孔221联通,锁止钉6一端穿过锁止孔28经铆钉转动连接于侧叶22上,锁止钉6的侧边包括凸弧段61和经挖切形成内凹弧段62,内凹弧段62与位于相邻的固定孔221中的固定钉3头部的侧边弧形面适配且该内凹弧段62与固定钉3头部的侧边弧形面之间形成间隙配合,锁止钉6的凸弧段61与固定钉3头部的侧边弧形面形成紧密挤压配合。
上述撑叶2包括本体结构,侧叶22由本体结构右侧端折弯朝上或朝下延伸形成,本体结构内端面的左右侧分别设有与安装腔152的左腔室、安装腔152的右腔室形成限位配合的左侧限位条26和右侧限位条27,左侧限位条26呈L型结构,左侧限位条26与本体结构内端面的左侧面之间形成U型的限位槽,安装腔152左腔室内壁设有与限位槽配合的定位凸筋1521,定位凸筋1521距离限位槽上端或下端内壁之间留有间隙,定位凸筋1521与限位槽形成沿植骨孔121轴向的定位配合。撑叶2还包括设置在本体结构外侧端面上的防滑凸点结构29,防滑凸点结构29呈金字塔状连续分布。
本发明不局限于上述具体实施方式,本领域一般技术人员根据本发明公开的内容,可以采用其他多种具体实施方式实施本发明的,或者凡是采用本发明的设计结构和思路,做简单变化或更改的,都落入本发明的保护范围。

Claims (9)

1.一种用于侧方入路治疗腰椎滑移的椎间融合器,包括本体框、撑叶和固定钉,本体框包括植入端和尾部端,植入端和尾部端之间通过前侧墙以及后侧墙连接形成具有中空腔体的框体结构,尾部端设有与中空腔体联通的植骨孔,撑叶分布于本体框上下端面,撑叶具有与中空腔体联通的中心孔,其特征在于:本体框内滑动配合有驱动撑叶朝上下端面外扩的外撑结构、以及滑动配合有驱动两个撑叶分别朝前侧墙和后侧墙移动的复位移动结构,所述中空腔体包括位于本体框上下端面处的两个端口,上、下端面处的两个端口之间还分布有与撑叶配合的安装腔、与外撑结构配合的外撑轨道、与复位移动结构配合的复位移动轨道,所述撑叶与安装腔的左右内壁紧密配合,撑叶与安装腔的上下内壁间隙配合,所述撑叶靠近本体框尾部端的一侧设有侧叶,侧叶设有固定孔,位于上端面的侧叶固定孔中配合有朝后侧上方倾斜的固定钉,位于下端面的侧叶固定孔中配合有朝前侧下方倾斜的固定钉,所述外撑结构包括外撑架,外撑架设有与外撑轨道滑移配合的导条,外撑架的上下端面分别设有2组抵接斜面,2组抵接斜面分别位于外撑架左侧端和外撑架右侧端,上下端面各自的2组抵接斜面均朝左侧端倾斜延伸,撑叶内端面设有相应的配合斜面,外撑架设有操作段,操作段与本体框的尾部端形成螺纹旋接配合,外撑架的抵接斜面随着操作段的螺纹正向移动而与配合斜面抵接驱动撑叶外撑移动形成撑叶外扩结构,所述复位移动结构包括复位支架,复位支架也设有与复位移动轨道配合的导条,复位支架上设有2组楔形块,2组楔形块上均设有楔形面,2组楔形面分别各自朝向后侧墙、前侧墙方向且均由左侧端向右侧端倾斜延伸,撑叶的内端面设有与各自的楔形面配合的斜面凸块,斜面凸块的斜面构成凸块配合面,凸块配合面与楔形面抵接配合,复位支架也设有与本体框的尾部端螺纹旋接的操作段,上下端面的两个撑叶通过楔形面随着该操作段的正向螺纹移动而与斜面凸块抵接驱动两个撑叶分别朝前侧墙、后侧墙方向移动形成撑叶复位结构。
2.根据权利要求1所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述复位支架和外撑架均呈中空框体结构,且复位支架和外撑架呈上下堆叠设置,所述复位移动轨道和外撑轨道呈上下分布且分别与复位支架的导条、外撑架的导条适配,所述外撑架的左端部和右端部均设有抵接块,所述抵接斜面设置在抵接块的上端面或下端面处,所述复位支架的左端部和右端部均设有楔形块,所述楔形面设置在楔形块的左侧面或右侧面,所述抵接块位于左右端部的楔形块所形成的空间之内,且抵接块距离楔形块之间留有空隙,该空隙包括前端空隙、后端空隙、左侧面空隙和右侧面空隙。
3.根据权利要求1-2任意一项所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述外撑架的后侧面设有安装孔,外撑架的操作段包括螺纹部和连接轴部,外撑架的连接轴部一端穿过外撑架的安装孔后经铆钉固定,外撑架的连接轴部另一端与螺纹部一体连接,所述复位支架的后侧面也设有安装孔,复位支架的操作段包括螺纹部和连接轴部,复位支架的连接轴部一端穿过外撑架的安装孔后经铆钉固定,复位支架的连接轴部另一端与复位支架的螺纹部一体连接,本体框的尾部端设有2个分别与外撑架的操作段、复位支架的操作段螺纹配合的螺纹孔。
4.根据权利要求1-2任意一项所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述侧叶还设有固定钉的锁止结构,锁止结构包括锁止钉,侧叶设有可供锁止钉容纳的锁止孔,锁止孔侧壁局部与固定孔联通,锁止钉一端穿过锁止孔经铆钉转动连接于侧叶上,锁止钉的侧边包括凸弧段和经挖切形成内凹弧段,内凹弧段与位于相邻的固定孔中的固定钉头部的侧边弧形面适配且该内凹弧段与固定钉头部的侧边弧形面之间形成间隙配合,锁止钉的凸弧段与固定钉头部的侧边弧形面形成紧密挤压配合。
5.根据权利要求3所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述侧叶还设有固定钉的锁止结构,锁止结构包括锁止钉,侧叶设有可供锁止钉容纳的锁止孔,锁止孔侧壁局部与固定孔联通,锁止钉一端穿过锁止孔经铆钉转动连接于侧叶上,锁止钉的侧边包括凸弧段和经挖切形成内凹弧段,内凹弧段与位于相邻的固定孔中的固定钉头部的侧边弧形面适配且该内凹弧段与固定钉头部的侧边弧形面之间形成间隙配合,锁止钉的凸弧段与固定钉头部的侧边弧形面形成紧密挤压配合。
6.根据权利要求1-2任意一项所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述撑叶包括本体结构,本体结构右侧端折弯朝上或朝下延伸形成所述侧叶,本体结构内端面的左右侧分别设有与安装腔的左腔室、安装腔的右腔室形成限位配合的左侧限位条和右侧限位条,左侧限位条呈L型结构,左侧限位条与本体结构内端面的左侧面之间形成U型的限位槽,安装腔左腔室内壁设有与限位槽配合的定位凸筋,定位凸筋距离限位槽上端或下端内壁之间留有间隙,定位凸筋与限位槽形成沿植骨孔轴向的定位配合。
7.根据权利要求3所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述撑叶包括本体结构,本体结构右侧端折弯朝上或朝下延伸形成所述侧叶,本体结构内端面的左右侧分别设有与安装腔的左腔室、安装腔的右腔室形成限位配合的左侧限位条和右侧限位条,左侧限位条呈L型结构,左侧限位条与本体结构内端面的左侧面之间形成U型的限位槽,安装腔左腔室内壁设有与限位槽配合的定位凸筋,定位凸筋距离限位槽上端或下端内壁之间留有间隙,定位凸筋与限位槽形成沿植骨孔轴向的定位配合。
8.根据权利要求4所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述撑叶包括本体结构,本体结构右侧端折弯朝上或朝下延伸形成所述侧叶,本体结构内端面的左右侧分别设有与安装腔的左腔室、安装腔的右腔室形成限位配合的左侧限位条和右侧限位条,左侧限位条呈L型结构,左侧限位条与本体结构内端面的左侧面之间形成U型的限位槽,安装腔左腔室内壁设有与限位槽配合的定位凸筋,定位凸筋距离限位槽上端或下端内壁之间留有间隙,定位凸筋与限位槽形成沿植骨孔轴向的定位配合。
9.根据权利要求5所述的用于侧方入路治疗腰椎滑移的椎间融合器,其特征在于:所述撑叶包括本体结构,本体结构右侧端折弯朝上或朝下延伸形成所述侧叶,本体结构内端面的左右侧分别设有与安装腔的左腔室、安装腔的右腔室形成限位配合的左侧限位条和右侧限位条,左侧限位条呈L型结构,左侧限位条与本体结构内端面的左侧面之间形成U型的限位槽,安装腔左腔室内壁设有与限位槽配合的定位凸筋,定位凸筋距离限位槽上端或下端内壁之间留有间隙,定位凸筋与限位槽形成沿植骨孔轴向的定位配合,所述撑叶还包括设置在本体结构外侧端面上的防滑凸点结构,防滑凸点结构呈金字塔状连续分布。
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