CN112022450A - 脊柱固定装置 - Google Patents

脊柱固定装置 Download PDF

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Publication number
CN112022450A
CN112022450A CN201910664887.7A CN201910664887A CN112022450A CN 112022450 A CN112022450 A CN 112022450A CN 201910664887 A CN201910664887 A CN 201910664887A CN 112022450 A CN112022450 A CN 112022450A
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China
Prior art keywords
fixation device
cage
spinal fixation
plate
vertebrae
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CN201910664887.7A
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CN112022450B (zh
Inventor
金暻泰
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Industry Academic Cooperation Foundation of KNU
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Industry Academic Cooperation Foundation of KNU
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Abstract

本发明涉及一种脊柱固定装置。由于根据本发明的脊柱固定装置，包括：融合器(cage)，其设置于相邻椎骨之间以确保椎骨之间的间隔；中间板，其可装卸地结合于上述融合器；以及展开板，其一侧端以可折叠式转动的方式结合于上述中间板，从而公开了能够将融合器稳定地固定到椎骨之间的准确位置的技术。

Description

脊柱固定装置
技术领域
本发明涉及一种脊柱固定装置，更详细地，涉及一种在脊椎或颈椎手术中插入并设置于相邻椎骨之间的脊柱固定装置。
背景技术
通常，存在如椎间狭窄引起的椎管狭窄症、椎骨间的排列脱位的椎体前移、或椎体后移等椎骨的结构学上的退行性变形、先天性变形或创伤性变形等各种脊椎病，症状严重时，需要手术治疗。
作为这些脊椎病的手术之一有脊柱融合术，是插入椎间融合器(Cage)的手术。例如，以往进行的方式是，当患者在俯卧状态时，切开一部分皮肤和肌肉，暴露椎骨后，移除椎骨之间的椎间盘，将融合器插入脊髓神经和分支神经之间，并覆盖板(plate)以固定融合器和椎骨。
然而，在插入融合器后加板的过程中，手术时间变长，并且一不小心板就会发生倾斜或偏离地固定，或者被固定成一侧太长。
尤其，由于椎骨的表面不光滑，因此存在用螺栓连接进行固定时被插入并固定到与预期的方向偏离的方向上，导致手术不正确的问题。
因此，需要一种能够抑制发生这种不正确手术的技术。
[现有技术文献]
专利文献
韩国公开专利第20-1297982号
发明内容
发明所要解决的问题
本发明的目的在于，解决如上所述的现有技术中的问题，提供一种脊柱固定装置，该装置在相邻椎骨之间设置融合器之后能够准确且稳定地固定椎骨。
用于解决问题的方案
为解决上述目的，根据本发明第一实施例的脊柱固定装置，其一个特征可以是，包括：融合器，其设置于相邻椎骨之间以确保椎骨之间的间隔；中间板，其可装卸地结合于上述融合器；以及展开板，其一侧端以可折叠式转动地结合于上述中间板。
其中，另一个特征可以是，上述中间板和上述展开板之间的结合是铰链结合。
其中，另一个特征可以是，上述中间板和上述融合器之间的结合是可选择性装卸的滑动结合。
其中，另一个特征可以是，上述融合器向上述相邻椎骨之间插入一定程度时，上述中间板卡在上述椎骨，并抑制进一步插入。
其中，另一个特征可以是，在上述中间板或上述融合器的后侧设置有闭合器，其用于抑制通过围绕上述铰链结合旋转任意角度而展开的上述展开板被折叠。
其中，另一个特征可以是，在上述展开板或上述融合器设置有展开限制单元，其用于限制上述展开板围绕上述铰链结合旋转而展开至一定角度以上。
其中，另一个特征可以是，还包括固定工具，其将上述展开板固定到上述相邻椎骨之间的一个椎骨。
进一步地，另一个特征可以是，上述固定工具是固定螺栓，并且，上述展开板设置有螺纹孔，以便上述固定螺栓插入并与上述椎骨螺栓连接(Bolting)。
进一步地，另一个特征可以是，上述展开板设置有用于覆盖上述螺纹孔的至少一部分的螺栓罩，以便抑制与上述椎骨螺栓连接的上述固定螺栓的头部从上述螺纹孔凸出。
其中，另一个特征可以是，上述融合器的内侧设置有能够内置人工骨的人工骨空间。
其中，另一个特征可以是，上述融合器形成有与上述人工骨空间连通的人工骨孔。
为解决上述目的，根据本发明第二实施例的脊柱固定装置，其一个特征可以是，包括：融合器，其设置于相邻椎骨之间以确保椎骨之间的间隔；以及展开板，其一侧端以可折叠式转动地结合于上述融合器。
其中，另一个特征可以是，上述展开板和上述融合器之间的结合是铰链结合。
其中，另一个特征可以是，上述融合器的后侧设置有卡接凸缘，其在上述融合器向上述相邻椎骨之间插入一定程度时卡在上述椎骨。
其中，另一个特征可以是，上述融合器设置有闭合器，其用于抑制通过围绕上述铰链结合旋转任意角度而展开的上述展开板被折叠。
其中，另一个特征可以是，在上述展开板或上述融合器的后侧设置有展开限制单元，其用于限制上述展开板围绕上述铰链结合旋转而展开一定角度以上。
其中，另一个特征可以是，还包括固定工具，其用于将上述展开板固定到上述相邻椎骨。
进一步地，另一个特征可以是，上述固定工具是固定螺栓，上述展开板设置有螺纹孔，以便上述固定螺栓插入并与上述椎骨螺栓连接。
进一步地，另一个特征可以是，上述展开板设置有用于覆盖上述螺纹孔的至少一部分的螺栓罩，以便抑制与上述椎骨螺栓连接的上述固定螺栓的头部从上述螺纹孔凸出。
其中，另一个特征可以是，上述融合器的内侧设置有能够内置人工骨的人工骨空间。
其中，另一个特征可以是，上述融合器形成有与上述人工骨空间连通的人工骨孔。
发明效果
根据本发明的脊柱固定装置能够准确且稳定地对插入并设置于相邻椎骨之间的融合器进行固定，从而具有能够稳定地确保融合器插入手术的准确性的效果。
附图说明
图1是示意性示出根据本发明第一实施例的脊柱固定装置设置于相邻椎骨之间的状态的侧面剖视图。
图2是示意性示出根据本发明第一实施例的脊柱固定装置中的中间板和融合器之间的结合的立体图。
图3是示意性示出根据本发明第一实施例的脊柱固定装置中的结合到中间板的展开板的旋转的侧视图。
图4是示意性示出根据本发明第一实施例的脊柱固定装置的后视图。
图5是示意性示出根据本发明第二实施例的脊柱固定装置设置于相邻椎骨之间的状态的侧面剖视图。
图6是示意性示出根据本发明第二实施例的脊柱固定装置中的结合到融合器的展开板的旋转的侧视图。
图7a及图7b是示意性示出根据本发明第二实施例的脊柱固定装置的后视图。
图8至图11是示意性示出用于说明根据本发明第一实施例的脊柱固定装置可进一步包括的展开限制单元的局部放大图。
图12是示意性示出根据本发明第一实施例的脊柱固定装置以及融合器支承部(holder)的侧面剖视图。
图13是示意性示出根据本发明第二实施例的脊柱固定装置以及融合器支承部的侧面剖视图。
附图标记说明：
110、310：融合器 130、330：铰链结合
151、152、351、352：展开板 355：中间板
170、370：螺栓罩 180：固定螺栓
190：闭合器。
具体实施方式
以下将参考附图说明优选实施例，以便能够更加具体理解本发明。
首先，为了便于说明和理解本发明的实施例，本说明书中的融合器的前侧指的是先插入到相邻椎骨之间的一侧。因此，后侧是与前侧相反的一侧。
同时，参考侧视图进行说明时，右侧是脊柱固定装置和融合器的前侧，侧视图的左侧是脊柱固定装置和融合器的后侧。
图1是示意性示出根据本发明第一实施例的脊柱固定装置设置于相邻椎骨之间的状态的侧面剖视图。
参照图1，根据本发明第一实施例的脊柱固定装置包括融合器310、中间板355以及展开板351、352。
融合器310具有任意尺寸，并且设置于相邻椎骨1、2之间以确保椎骨1、2之间的间隔。
如图1所示，融合器310具有任意尺寸以确保相邻椎骨1、2之间的间隔。
并且，优选地，在融合器310的内侧设置能够内置人工骨(未示出)的人工骨空间312。脊柱固定装置300设置于椎骨1、2之间后，可以将人工骨植入到融合器310的人工骨空间312的内侧。
这种融合器310的材料是具有高强度、高刚性、耐高温性以及耐化学性的高分子树脂材料，优选是用于MRI和医用植入物的生物材料。例如，优选地，由聚醚醚酮(Poly EtherEther Ketone，PEEK)制成。
并且，优选地，融合器310中形成有与人工骨空间连通的人工骨孔314。图1中示例性示出了融合器310的上侧和下侧形成有人工骨孔314。
这种融合器310的后侧结合中间板355。
并且，展开板351、352与中间板355结合，并且设置成固定于相邻椎骨1、2。
这里，参照图2进一步说明融合器310和中间板355之间的结合。
图2是示意性示出根据本发明第一实施例的脊柱固定装置中的中间板355和融合器310结合的图。
如图1及图2所示，中间板355结合到融合器310的后侧。更优选地，中间板355和融合器310之间以可选择性装卸的方式结合。
例如，可选择性装卸中间板355和融合器310之间的结合的形态可以是滑动结合。图2示出了中间板355和融合器310之间以滑动结合的方式实现选择性装卸的形态。
中间板355的前侧设置有滑动槽358，以便与融合器310滑动结合。并且，对应于该中间板355的滑动槽358，融合器310上设置有能够与该滑动槽358紧固的滑动槽318。
因此，如图2所示，中间板355可以与融合器310实现滑动结合。
这样，用滑动结合358、318实现中间板355和融合器310的后侧之间的结合，可以根据使用者的需要或手术的需要将适当形态的融合器310安装到中间板355。或者可以用其他形态的融合器进行代替安装。
因此，对于一个中间板355，可以从具有多种外形或尺寸的多个融合器中选择具备适合手术的形态的任一融合器310，将其结合到中间板355并用于手术。
如上所述，中间板355和融合器310后侧之间的结合是可装卸的结合(如滑动结合318、358)时，优选地，可以根据需要选择性地替代或交换使用具有其他外形尺寸或形态的其他融合器。
并且，如图4所示，优选地，中间板355的高度形成为高于融合器310的高度，以便融合器310插入到相邻椎骨1、2之间一定程度时，中间板355能够卡在椎骨1、2的位置。
由于中间板355的高度形成为高于融合器310的高度，因此将融合器310向两个椎骨1、2之间插入时中间板355卡在椎骨1、2，从而可以预防不小心将融合器310过度插入。
接着，参照图1和图3对展开板351、352进行说明。
图3是示意性示出根据本发明第一实施例的脊柱固定装置中的结合到中间板355的展开板351、352的旋转的侧视图。
参照图1及图3，展开板351、352的一侧端以可折叠式转动地结合于中间板355。并且，展开板351、352可以围绕中间板355和展开板351、352之间的结合部位旋转任意角度α。
优选地，这种中间板355和展开板351、352之间的结合是铰链结合330。
展开板351、352与中间板355铰链结合，并且固定到相邻椎骨1、2中的任一个椎骨。
更具体地，上侧的展开板351的一侧端结合到中间板355的上侧端，或下侧的展开板352的一侧端结合到中间板355的下侧端。
这样，由于展开板351、352与中间板355铰链结合330，因此展开板351、352可以围绕铰链结合330的中心轴旋转任意角度α。
融合器310设置于相邻椎骨1、2之间以前，展开板351、352和中间板355后侧面之间的结合角度α约为90度。
如图所示，可以说，这里的展开板351、352以铰链结合330为中心相对于中间板355处于折叠的状态。
如图3所示，当融合器310插入到相邻椎骨1、2之间时，为了可以固定融合器310的位置，使其位置不发生变动，展开板351、352围绕铰链结合330进行旋转。
并且，展开板351、352以打开方向旋转时，中间板355的后侧和展开板351、352之间的结合角α变大。优选地，结合角α扩大到180度。
如此，可以说展开板351、352相对于中间板355打开，也可以说展开板351、352被展开。
当展开板351、352围绕与中间板355的铰链结合330展开至结合角α扩大到180度时(如图3所示)，展开板351、352的一侧面与椎骨1、2靠近或接触。
当与椎骨1、2靠近或接触的展开板351、352通过后述的固定工具结合到椎骨1、2时，与固定到椎骨1、2的展开板351、352铰链结合330的中间板355可以支承融合器310。
优选地，展开板351、352由生物亲和性材料形成。由生物亲和性材料形成时，可以抑制在体内发生排斥反应。例如，优选地，展开板351、352由具有生物亲和性和高耐久性的材料(例如钛)制成。
优选地，这种脊柱固定装置还可以包括固定工具，对此参照图1及图4进行说明。
图4是示意性示出根据本发明第一实施例的脊柱固定装置的后视图。
参照图1及图4，在根据本发明第一实施例的脊柱固定装置中，固定工具将展开板351、352固定到相邻椎骨1、2。
作为这种固定工具的优选示例，可以举例固定螺栓180。优选地，展开板351、352设置有螺纹孔353，以便固定螺栓180插入并与椎骨1、2螺栓连接(bolting)。
固定螺栓180通过设置在展开板351、352的螺纹孔353插入并与椎骨1、2螺栓连接，从而可以固定设置于相邻椎骨1、2之间的融合器310的位置。
并且，优选地，为了抑制与椎骨1、2螺栓连接的固定螺栓180的头部从螺纹孔353凸出，在每个展开板351、352设置有用于覆盖螺纹孔353的至少一部分的螺栓罩370。
如图1及图4所示，展开板351、352设置有螺栓罩370。螺栓罩370通过罩中心轴371与展开板351、352结合，螺栓罩370可以围绕罩中心轴371旋转。
当固定螺栓180通过螺纹孔353与椎骨1、2螺栓连接后，为了防止固定螺栓180的头部从螺纹孔353凸出，使螺栓罩370围绕罩中心轴371旋转并覆盖螺纹孔353的至少一部分。螺纹孔353的至少一部分被螺栓罩370覆盖，从而可以抑制固定螺栓180松动。
并且，优选地，中间板355还设置有闭合器(closer)390。
闭合器390设置在中间板355，使得展开板351、352在围绕与中间板355的铰链结合进行旋转而展开的状态下保持打开的状态，不会重新向相反方向折叠。
如图1所示，闭合器390在中间板355的后侧结合，并以能够旋转的方式结合。如图4中的虚线所示，闭合器390处于不妨碍展开板351、352的移动的状态，直到展开板351、352打开到180度。
之后，当展开板351、352展开到180度时使闭合器390旋转并覆盖展开板351、352的一部分，以便展开板351、352保持展开的状态，不会重新折叠。这里，优选地，闭合器390可以围绕与中间板355结合的部位进行旋转。
如图1及图4所示，闭合器390旋转时，闭合器390的两端在融合器310的后侧覆盖展开板351、352铰链结合的部分。
由于闭合器390的两端阻挡展开板351、352折叠，因此，展开板351、352可以保持展开的状态。
并且，优选地，闭合器390的旋转中心侧设置有支承孔(Holding hole)396，以便由融合器支承部(未示出)支承。
优选地，该支承孔396的内周面形成有螺纹，以便与融合器支承部的支承杆(未示出)结合。通过支承杆螺栓结合到支承孔396，脊柱固定装置可以被融合器支承部支承。
作为参考，优选地，在融合器310的后侧设置有与闭合器390的支承孔396连通的孔。优选地，与闭合器390的支承孔396连通的融合器310的孔也形成有螺纹，以便与支承杆结合。
接着，对根据本发明第二实施例的脊柱固定装置进行说明。
这里，类似于前述的第一实施例，为了便于说明和理解，融合器的前侧指的是先插入到相邻椎骨之间的一侧。因此，后侧是与前侧相反的一侧。
并且，如前述的实施例，侧视图中，右侧是融合器的前侧，左侧是融合器的后侧。
图5是示意性示出根据本发明第二实施例的脊柱固定装置设置于相邻椎骨之间的状态的侧面剖视图。
参照图5，根据本发明第二实施例的脊柱固定装置包括融合器110和展开板151、152。
融合器110具有任意尺寸。融合器110插入并设置于相邻椎骨1、2之间以确保椎骨1、2之间的间隔。
并且，优选地，在融合器110的内侧具备能够包含人工骨(未示出)的人工骨空间112。融合器110插入并设置于椎骨1、2之间后，可以将人工骨或合成骨料(以下统称为人工骨)植入到融合器110的人工骨空间112的内侧。
这种融合器110的材料是具有高强度、高刚性、耐高温性以及耐化学性的高分子树脂材料，优选地，是用于MRI和医用植入物的生物材料。例如，优选地，由聚醚醚酮(PolyEther Ether Ketone，PEEK)制成。
并且，优选地，融合器110中形成有与人工骨空间连通的人工骨孔114。图5中示例性示出了融合器110的上侧和下侧形成有人工骨孔114。
优选地，能够预防将融合器110插入到两个椎骨1、2之间时不小心将融合器110过度插入。因此，优选地，融合器110的后侧设置有卡接凸缘118，使得融合器110插入到相邻椎骨1、2之间一定程度时卡在椎骨1、2。
并且，融合器110的后侧结合展开板151、152。展开板151、152被设置成固定于相邻椎骨1、2。
并且，优选地，展开板151、152可以围绕融合器110和展开板151、152之间的结合部位旋转任意角度。
这里，参照图6对展开板151、152的旋转进行说明。
图6是示意性示出在根据本发明第二实施例的脊柱固定装置中的展开板151、152旋转结合到融合器110的后侧并旋转任意角度α的侧视图。
如图5及图6所示，展开板151、152的一侧端结合到融合器110的后侧一部分。优选地，展开板151、152的一侧端以可折叠式转动地结合到融合器110。
因此，结合到融合器110的后侧的展开板151、152可以围绕结合部位旋转任意角度α。
优选地，展开板151、152的一侧端铰链结合130到融合器110的后侧一部分，以便展开板151、152旋转。
如此，展开板151、152可以围绕铰链结合130中心轴旋转任意角度α。
这里，以铰链结合130中心轴为中心，可以将展开板151、152和融合器110的后侧面之间的角度α定义为展开板151、152和融合器110之间的结合角α。
脊柱固定装置100设置于相邻椎骨1、2之间以前，展开板151、152和融合器110的后侧面之间的结合角度α约为90度，并且可以说，以铰链结合130为中心相对于融合器110处于折叠的状态。
并且，如图6所示，当融合器110插入并设置于相邻椎骨1、2之间时，为了可以固定融合器110的位置，使其不发生变动，展开板151、152可以围绕铰链结合130进行旋转。
其中，融合器110的后侧和展开板151、152之间的结合角α将变大。优选地，结合角α扩大到180度。
如此，可以说展开板151、152相对于融合器110打开，也可以说展开板151、152被展开。
并且，当结合角α为180度时如图5所示。
当与椎骨1、2靠近或接触的展开板151、152被固定到与椎骨1、2时，由于融合器110与展开板151、152结合，因此融合器110固定于两个椎骨1、2之间。
优选地，设置多个展开板151、152。如图所示，优选地，在融合器110的后侧，一个展开板151结合在上侧，另一个展开板152结合在下侧。
优选地，这种展开板151、152由生物亲和性材料形成。由生物亲和性材料形成时，可以抑制在体内发生排斥反应。例如，优选地，展开板151、152由具有生物亲和性和高耐久性的材料(例如钛)制成。
这里，参照图7a及图7b对固定工具进行说明。
图7a及图7b是示意性示出根据本发明第二实施例的脊柱固定装置的后视图。
参照图5、图7a及图7b，固定工具将展开板151、152固定到相邻椎骨1、2。
作为这种固定工具的优选示例，可以举例固定螺栓180，在这种情况下，优选地，展开板151、152设置有螺纹孔153，以便固定螺栓180插入并与椎骨1、2螺栓连接(bolting)。
固定螺栓180通过设置在展开板151、152的螺纹孔153插入并与椎骨1、2螺栓连接，从而可以固定设置于相邻椎骨1、2之间的融合器110的位置。
并且，优选地，为了抑制与椎骨1、2螺栓连接的固定螺栓180的头部从螺纹孔153凸出，在每个展开板151、152设置有用于覆盖螺纹孔153的至少一部分的螺栓罩170。
如图7a所示，展开板151、152设置有螺栓罩170。螺栓罩170通过罩中心轴171与展开板151、152结合，螺栓罩170可以围绕罩中心轴171旋转。
如图7b所示，当固定螺栓180通过螺纹孔153与椎骨1、2螺栓连接后，为了防止固定螺栓180的头部从螺纹孔153凸出，使螺栓罩170围绕罩中心轴171旋转并覆盖螺纹孔153的至少一部分。螺纹孔153的至少一部分被螺栓罩170覆盖，从而可以抑制固定螺栓180松动。
并且，如图5、图7a及图7b所示，优选地，还设置有闭合器(closer)190，使得展开板151、152在围绕铰链结合130展开的任意角度α为180度的状态下保持打开的状态，使其不会重新向相反方向折叠。
即闭合器(closer)设置在融合器110，并抑制围绕铰链结合130旋转任意角度α而打开的展开板151、152被折叠。
如图5所示，该闭合器190在融合器110的后侧结合，并以能够旋转的方式结合。如图7a所示，闭合器190处于不妨碍展开板151、152的移动的状态，直到展开板151、152打开到180度。
之后，当展开板151、152展开到180度时旋转闭合器190，以便展开板151、152保持展开的状态，不会重新折叠。这里，优选地，闭合器190可以围绕与融合器110结合的部位进行旋转。
如图7b所示，闭合器190旋转时闭合器190的两端在融合器110的后侧覆盖展开板151、152铰链结合的部分。
由于闭合器190的两端阻挡展开板151、152折叠，因此，展开板151、152可以保持展开的状态。
并且，优选地，闭合器190的旋转中心侧设置有支承孔196，以便由融合器支承部(未示出)支承。
优选地，该支承孔196的内周面形成有螺纹，以便与融合器支承部的支承杆(未示出)结合。通过支承杆螺栓结合到支承孔196，脊柱固定装置可以被融合器支承部支承。
优选地，在如上所述的实施例中的脊柱固定装置中还可设置有如下的展开限制单元。
图8是示意性示出根据本发明实施例的脊柱固定装置可进一步包括的展开限制单元的示例性形态的局部放大图。
参照图8，展开限制单元限制展开板1510围绕铰链结合1300旋转时旋转超过180度。
作为这种展开限制单元的优选示例，可以举例展开限制片1515。
在前述的第一实施例的脊柱固定装置的情况下，优选地，用于限制展开板1510围绕铰链结合1300展开一定角度以上的展开限制片1515设置于展开板1510的后侧。
这里，附图标记1400可以视为第一实施例中的中间板355(参照图4)。展开限制片1515接触到融合器的后侧一部分1400并限制展开板1510展开一定角度以上。
并且，优选地，能够旋转的最大角度为180度。展开板1510旋转180度以上时，会发生融合器从椎骨之间向外侧脱离的现象。
因此，更优选地，设置展开限制板1515以防止融合器因展开板1510旋转180度以上而发生脱离。
与此类似地，优选如图9所示的形态。
图9是示意性示出根据本发明实施例的脊柱固定装置可进一步包括的展开限制单元的示例性应用形态的局部放大图。
如图9所示，优选地，在中间板1400设置用于安置展开限制片1510的限制片收容槽1425。
如图9所示，中间板1400形成用于安置展开限制片1515的限制片收容槽1425，当展开板1510围绕铰链结合1300旋转180度时，展开限制片1515收容于限制片收容槽1425并与中间板1400接触。从而抑制展开板1510进一步旋转。
图10是示意性示出根据本发明实施例的脊柱固定装置可进一步包括的展开限制单元的其他形态的局部放大图。
如图10所示，如下形态也是充分可以实现的：即展开限制片1415设置在融合器1400侧，并且围绕铰链结合130旋转的展开板1510与展开限制片1415接触，从而抑制进一步旋转。
另一方面，如图11所示的形态也是可能的。
图11是示意性示出根据本发明实施例的脊柱固定装置可进一步包括的展开限制单元的变形形态的局部放大图。
如图11所示，优选地，展开限制片1417设置在融合器1400的后侧，并且展开板1510围绕铰链结合1300旋转一定角度而展开时接触到展开板1510的一部分，从而限制进一步展开。
在展开限制片1417以与铰链结合1300轴平行的方向形成于融合器后侧的一部分1400的情况下，当展开板1510的结合角为180度时，将与展开限制片1417接触，并被限制发生进一步旋转。
并且，优选地，如上所述，参照图8至图11进行说明的展开限制片还可以设置于前述的根据第二实施例的脊柱固定装置。
在根据第二实施例的脊柱固定装置的情况下，前述的图8至11中的附图标记1400可以视为表示融合器110的一部分(参照图5)，而其他部分与之前参照图8至11说明的部分相同。
如上所述，根据本发明第二实施例或第一实施例的脊柱固定装置可以通过如下方式支承于融合器支承部并被使用。
图12是示意性示出根据本发明第一实施例的脊柱固定装置以及融合器支承部的侧面剖视图。
参照图12，融合器支承部500支承脊柱固定装置300。融合器支承部500可以是为了将脊柱固定装置100插入到相邻椎骨之间而以使用者能够操作控制的方式设置的器具。
这种融合器支承部500具备支承把手510、支承臂520以及支承杆540。
支承把手510以使用者能够握住融合器支承部500的方式设置，并且其位于融合器支承部500的后侧。支承臂520和支承杆540由支承把手510支承。
如图12所示，支承臂520的至少一部分内侧具有空间(如管)，并且在该空间内置支承杆540。支承臂520从外部支承并保护支承杆540。
为了支承脊柱固定装置300，支承杆540的前侧端形成有螺纹543。并且，形成螺纹543的融合器支承部500的支承杆540的前侧端螺栓连接到中间板355的支承孔，从而支承脊柱固定装置300。
由于支承杆540的前侧端形成有螺纹543，从而可以插入到脊柱固定装置300的中间板355的支承孔并实现螺栓连接。脊柱固定装置300通过这种螺栓连接支承于融合器支承部500。
支承杆540的前侧端和脊柱固定装置100可以根据支承杆540的旋转方向结合，或相反地，也可脱离。
另一方面，支承臂520的前侧端设置有支承架530。支承架530与铰链结合于中间板355的展开板351、352的后侧一部分接触并对其进行支承。
图13是示意性示出根据本发明第二实施例的脊柱固定装置以及融合器支承部的侧面剖视图。
如图13所示，融合器支承部500支承脊柱固定装置100。融合器支承部500设置有支承把手510、支承臂以及支承杆540，并且与之前说明的大同小异。
如前述的根据第二实施例的脊柱固定装置，在脊柱固定装置100的融合器110的后侧形成有支承槽或支承孔，以便支承杆540的前侧端543螺栓连接并插入。
由于支承杆540的前侧端形成有螺纹543，从而可以插入到设置于脊柱固定装置100的融合器110的支承孔116并螺栓连接。脊柱固定装置100通过这种螺栓连接支承于融合器支承部500。
支承杆540的前侧端和脊柱固定装置100可以根据支承杆540的旋转方向结合，或相反地，也可脱离。
另一方面，支承臂520的前侧端设置有支承架530。支承架530与铰链结合于融合器110的后侧的展开板151、152的后侧一部分接触并对其进行支承。
如上所述，根据本发明的脊柱固定装置不需要如现有技术在插入融合器后进行加板，可以在椎骨之间准确稳定地固定融合器，从而具有可以稳定地确保融合器插入手术的准确性的优点。
如上所述，虽然参考附图并通过实施例具体说明了本发明，但是应该理解的是上述实施例仅是本发明的优选实施例，因此本发明不限于上述实施例，本发明的权利范围是后述的权利要求及其等同物的范围。

Claims (21)

1.一种脊柱固定装置，其特征在于，包括：
融合器，其设置于相邻椎骨之间以确保椎骨之间的间隔；
中间板，其可装卸地结合于所述融合器；以及
展开板，其一侧端以可折叠式转动的方式结合于所述中间板。
2.根据权利要求1所述的脊柱固定装置，其特征在于，
所述中间板和所述展开板之间的结合是铰链结合。
3.根据权利要求2所述的脊柱固定装置，其特征在于，
所述中间板和所述融合器之间的结合是可选择性装卸的滑动结合。
4.根据权利要求2所述的脊柱固定装置，其特征在于，
所述融合器向所述相邻椎骨之间插入一定程度时，所述中间板卡在所述椎骨，抑制进一步插入。
5.根据权利要求2所述的脊柱固定装置，其特征在于，
在所述中间板或所述融合器的后侧设置有闭合器，所述闭合器用于抑制通过围绕所述铰链结合旋转任意角度而展开的所述展开板被折叠。
6.根据权利要求2所述的脊柱固定装置，其特征在于，
在所述展开板或所述融合器上设置有展开限制单元，所述展开限制单元用于限制所述展开板围绕所述铰链结合旋转而展开至一定角度以上。
7.根据权利要求2所述的脊柱固定装置，其特征在于，
还包括固定工具，其将所述展开板固定到所述相邻椎骨之间的一个椎骨。
8.根据权利要求7所述的脊柱固定装置，其特征在于，
所述固定工具是固定螺栓，
并且，所述展开板设置有螺纹孔，以便所述固定螺栓插入并与所述椎骨实现螺栓连接。
9.根据权利要求8所述的脊柱固定装置，其特征在于，
所述展开板设置有用于覆盖所述螺纹孔的至少一部分的螺栓罩，以便抑制与所述椎骨螺栓连接的所述固定螺栓的头部从所述螺纹孔凸出。
10.根据权利要求2所述的脊柱固定装置，其特征在于，
所述融合器的内侧设置有能够内置人工骨的人工骨空间。
11.根据权利要求10所述的脊柱固定装置，其特征在于，
所述融合器形成有与所述人工骨空间连通的人工骨孔。
12.一种脊柱固定装置，其特征在于，包括：
融合器，其设置于相邻椎骨之间以确保椎骨之间的间隔；以及
展开板，其一侧端以可折叠式转动的方式结合于所述融合器。
13.根据权利要求12所述的脊柱固定装置，其特征在于，
所述展开板和所述融合器之间的结合是铰链结合。
14.根据权利要求13所述的脊柱固定装置，其特征在于，
所述融合器的后侧设置有卡接凸缘，其在所述融合器向所述相邻椎骨之间插入一定程度时卡在所述椎骨。
15.根据权利要求13所述的脊柱固定装置，其特征在于，
所述融合器设置有闭合器，所述闭合器用于抑制通过围绕所述铰链结合旋转任意角度而展开的所述展开板被折叠。
16.根据权利要求13所述的脊柱固定装置，其特征在于，
在所述展开板或所述融合器的后侧设置有展开限制单元，所述展开限制单元用于限制所述展开板围绕所述铰链结合旋转而展开至一定角度以上。
17.根据权利要求13所述的脊柱固定装置，其特征在于，
还包括固定工具，其用于将所述展开板固定到所述相邻椎骨。
18.根据权利要求17所述的脊柱固定装置，其特征在于，
所述固定工具是固定螺栓，
并且，所述展开板设置有螺纹孔，以便所述固定螺栓插入并与所述椎骨实现螺栓连接。
19.根据权利要求18所述的脊柱固定装置，其特征在于，
所述展开板设置有用于覆盖所述螺纹孔的至少一部分的螺栓罩，以便抑制与所述椎骨螺栓连接的所述固定螺栓的头部从所述螺纹孔凸出。
20.根据权利要求13所述的脊柱固定装置，其特征在于，
所述融合器的内侧设置有能够内置人工骨的人工骨空间。
21.根据权利要求20所述的脊柱固定装置，其特征在于，
所述融合器形成有与所述人工骨空间连通的人工骨孔。
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