CN101400322A - 用于多种支承材料的髋臼杯组件 - Google Patents
用于多种支承材料的髋臼杯组件 Download PDFInfo
- Publication number
- CN101400322A CN101400322A CNA2006800538963A CN200680053896A CN101400322A CN 101400322 A CN101400322 A CN 101400322A CN A2006800538963 A CNA2006800538963 A CN A2006800538963A CN 200680053896 A CN200680053896 A CN 200680053896A CN 101400322 A CN101400322 A CN 101400322A
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- CN
- China
- Prior art keywords
- liner
- acetabular cup
- cup assembly
- housing
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 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
- A61F2/4609—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 acetabular cups
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Abstract
公开了一种用于多种支承衬垫(32,110,212,310,354)的模块式髋臼杯组件(10,100,200,300,350)。髋臼杯组件包括具有锥形内壁(28)和两个周向槽(24,26)的壳体(12)。壳体(12)可用于聚乙烯、陶瓷、金属或其他类型的衬垫。
Description
相关申请的参见
[0001]本申请要求2006年3月20日提交的美国临时申请60/783,937的受益权。在此以参见的方式引入该申请的全部公开内容。
技术领域
[0002]本发明涉及髋臼杯,且更具体地涉及用于多种支承物的髋臼杯组件。
背景技术
[0003]在髋关节成形术中,各种支承材料可以用于植入物的髋臼杯部分。支承材料的选择通常在手术进行之前由医生确定。不过,有时,直到植入物部位准备完毕而且此部位的状况评估完毕,才可完成支承材料的最终选择。因此,有时有利的是,采用接纳多种支承衬垫的髋臼壳体,使得医生可在需要时修正其初始评估。
[0004]接纳多种支承衬垫的髋臼壳体从20世纪80年代就已在欧洲使用。通常,外壳体的特征在于,其具有其中可***锥形软或硬支承物的锥形内几何形状。在这些情况下,软支承物厚度、锁定完整性和磨损性能被尽量折衷以适应两种支承物。
[0005]近来,美国密西根州Kalamazoo的Stryker公司已经开发出一种髋臼杯,其接纳通过锥形锁定连接器保持的全金属封装的陶瓷插件。其壳体还接纳聚乙烯插件,此插件通过位于沿内锥形中点的一个周向滚边被锁定,并通过在壳体与衬垫之间的四个一致的部件来防止转动。
[0006]从制造方面来看,用于多种支承物的髋臼杯组件是所希望的,因为仅需要生产一个壳体来用于多种应用。这增加了所生产壳体的应用范围,这降低了总生产成本。进一步地,生产单一壳体降低了配发成本。
[0007]从修正方面来看,用于多种支承物的髋臼杯组件是所希望的,因为其为医生提供了更大的灵活性并减少了总的手术时间。第一,所述组件为医生提供更大的灵活性,这是因为医生可易于对髋修补物进行调节。例如,如果初始修补物具有聚乙烯衬垫,则医生可易于更换以陶瓷或金属衬垫,而不需改变壳体。第二,所述组件减少了总的手术时间,这是因为不必移除壳体。通常,所安装的壳体被已生长的骨包围,将其移除非常困难而且很费时间。进一步地,移除所安装的壳体可能导致严重的骨损失。通过不采用移除壳体的步骤,医生能够以更少时间和更少精力完成修正,而且其结果使得病人的损伤更少。
[0008]在聚乙烯衬垫与髋臼壳体之间的微移动是不希望出现的,这是因为这种移动形成聚乙烯碎渣,这最终导致骨溶解。现有的聚乙烯支承物锁定机构设计为在衬垫与壳体之间呈现最少的微移动。不过,这些机构还需要在手术中的额外***力来***衬垫。大的***力是不希望采用的,这是因为医生为了安装衬垫将需要更大努力。
[0009]传统上,陶瓷衬垫制造商已经考虑由于材料的应力敏感性质而禁止重新***陶瓷衬垫。材料在经受不适当应力时可能破裂或断裂。不过,由于不同原因,可能不希望移除和重新安装衬垫。作为示例,医生可能想在安装过程中移除陶瓷衬垫、改变壳***置、和重新安装衬垫。由于陶瓷制造商目前不赞成如此操作,因此,在陶瓷衬垫安装过程中进行这种类型的调节时,医生承受较大的风险。
[0010]在现有技术中仍然需要一种用于多种支承物的髋臼杯组件。
发明内容
[0011]简而言之,本发明涉及一种髋臼杯组件。该组件包括壳体和衬垫。壳体具有内表面和外表面。内表面包括第一槽、第二槽和锥形内壁。衬垫适于装配在壳体内表面内。衬垫从包括聚合物衬垫、陶瓷衬垫和金属衬垫的组中选出,聚合物衬垫包括内部分和外部分,外部分包括第一***和第二***,陶瓷衬垫包括带,金属衬垫包括锥形外部分。
[0012]在本发明一个实施例中,聚合物衬垫从包括交联聚乙烯和传统聚乙烯的组中选出。
[0013]在本发明另一实施例中,衬垫包括抗转凸块,壳体包括至少一个扇形凹口。扇形凹口在尺度上适于接纳抗转凸块。
[0014]在本发明又一实施例中,壳体包括***工具孔。***工具孔可与安装壳体的工具结合使用。
[0015]在本发明再一实施例中,壳体的内表面被精抛光。内表面可具有的表面粗糙度为大约1微英寸至大约16微英寸,更适合地为大约1微英寸至大约8微英寸。如果在壳体与衬垫之间发生微移动,则精抛光的表面可减少聚合物衬垫碎渣。
[0016]在本发明另一实施例中,壳体由从包括钛、钴铬和不锈钢的组中选出的材料制成。
[0017]在本发明又一实施例中,壳体进一步包括至少一个紧固孔。紧固孔适于接纳一个或多个紧固装置,以将壳体附接到骨。
[0018]在本发明又一实施例中,壳体进一步包括在外表面上的多孔涂层。多孔涂层允许骨在其中生长。
[0019]在本发明另一实施例中,带具有锥度。带的锥度可从大约2度至大约36度,更适合地,带的锥度可为大约18度。
[0020]在本发明又一实施例中,锥形内壁、带或锥形外部分包括表面增强结构。表面增强结构可从包括拱形梯级、倒置梯级或预定表面粗糙度的组中选出。表面增强结构增强了对衬垫的锁定。
[0021]在本发明再一实施例中,髋臼杯组件可包括限制支承衬垫。衬垫可采用锁定特征,例如金属锁定环或环形法兰。
[0022]髋臼杯组件可具有包含支承表面部件和固定机构在内的两件式衬垫。在髋复位之后,固定机构锁定在壳体中。
[0023]在本发明另一实施例中,衬垫从包括限制衬垫、中立衬垫、前倾衬垫、唇形支承衬垫和侧向支承衬垫的组中选出。
[0024]在本发明又一实施例中,髋臼杯组件进一步包括附接到衬垫的安装工具。安装工具包括金属或塑料。
[0025]在本发明一个特定实施例中,本发明为用于多种支承衬垫的髋臼杯组件。髋臼杯组件包括具有内壁、两个环形槽和多个抗转凸块的壳体。壳体可用于聚乙烯、陶瓷、金属和其他类型的衬垫。在陶瓷衬垫的情况下,带附接到衬垫。带适于与内壁配合。陶瓷衬垫上的带使壳体能够用于定制衬垫,而不需要更昂贵的特制衬垫。
[0026]在本发明又一实施例中,壳体具有面和顶点、延伸穿过顶点的中心轴线、和线,所述线从内表面与下槽相遇处延伸到中心轴线与由延伸穿过壳体的面的平面限定的平坦表面相遇处,中心轴线和所述线限定一角度,其中所述角度在大约10度至大约80度的范围内。在另一实施例中,所述角度在大约40度至大约70度的范围内。
[0027]在本发明另一实施例中,第一槽和第二槽分开第一距离,第一距离在大约1毫米至大约20毫米的范围内。在另一实施例中,第一距离在大约2毫米至大约4毫米的范围内。
[0028]在本发明又一实施例中,带具有内表面和与内表面隔开第二距离的外表面,第二距离从大约半毫米至大约30毫米变化。在另一实施例中,第二距离在大约半毫米至大约10毫米的范围内。
[0029]本发明提供的优点在于,用于接纳衬垫的环形***或肋的两个环形槽或凹腔。槽可完全或部分地围绕壳体内部延伸。使用两个肋和槽很重要,这是因为可通过调节这四个物件的公差和尺度以及在壳体与衬垫之间的干涉而控制和优化衬垫的有效推入和推出。这样,髋臼杯组件可设计为使得医生可能够容易地用手推入衬垫,但如果不使用工具,则衬垫将不会从壳体脱离。
[0030]如果在手术中有必要,则带也允许陶瓷衬垫重新***。而且,带改进了围绕衬垫的力分布并显著降低了衬垫破裂的可能性,特别是在失配的情况下。
[0031]通过在下文中的详细描述,本发明进一步的应用领域将变得明显。应理解的是,详细描述和具体示例虽然表明了本发明的优选实施例,但其仅用于示例,而并非用于限制本发明的范围。
附图说明
[0032]根据详细描述和附图,本发明将变得更易于完全理解。其中:
[0033]图1是第一实施例中的髋臼杯组件的截面侧视图;
[0034]图2是图1中所示髋臼杯组件的前立体图;
[0035]图3是壳体的前立体图;
[0036]图4是髋臼杯组件的局部截面侧视图;
[0037]图5是壳体的截面侧视图;
[0038]图6是第二实施例中的髋臼杯组件的截面侧视图;
[0039]图7是图6中所示髋臼杯组件的局部前立体图;
[0040]图8是第三实施例中的髋臼杯组件的截面侧视图;
[0041]图9是图8中所示髋臼杯组件的局部前立体图;
[0042]图10是表面增强结构的第一实施例;
[0043]图11是表面增强结构的第二实施例;
[0044]图12是表面增强结构的第三实施例;
[0045]图13是第四实施例中的髋臼杯组件的分解侧视图;
[0046]图14是第五实施例中的髋臼杯组件的分解侧视图;
[0047]图15是模块式髋臼试验***的分解前视立体图;
[0048]图16是图15中所示模块式髋臼试验***的前立体图;
[0049]图17是用于衬垫上的第一实施例中的安装工具的截面侧视图;
[0050]图18是壳体、用于衬垫的安装工具和冲机头部的前立体分解截面图;
[0051]图19是壳体、安装工具和衬垫的前立体图;
[0052]图20是壳体、用于衬垫的安装工具和冲机头部的截面侧视图;
[0053]图21是第二实施例中的安装工具的俯视图;
[0054]图22是图21中所示实施例的截面前视图;
[0055]图23是在第一实施例中用于将带安装到衬垫的紧固件的截面前视图;和
[0056]图24是在第二实施例中用于将带安装到衬垫的紧固件的截面前视图。
具体实施方式
[0057]以下的对于优选实施例的描述实质上仅为示例性的,而绝非用于限制本发明、其应用或使用。
[0058]图1和图2例示了髋臼杯组件10。髋臼杯组件10包括壳体12。壳体12适用于多种支承衬垫,例如第一衬垫32。第一衬垫32可为任何数量的衬垫,不过在图1和2中所示实施例中为聚合物衬垫。例如,第一衬垫32可为交联聚乙烯衬垫或传统聚乙烯衬垫。第一衬垫32包括抗转凸块33。壳体12包括***工具孔38,用以接纳安装壳体的工具(未示出)。在所示实施例中,***工具孔38具有螺纹。
[0059]最佳地如图3中所示,壳体12包括内表面14。在图3中所示实施例中,内表面14具有凹入形状,但也可使用其他形状。在一些实施例中,内表面14被精抛光,从而使其呈现镜面状。例如,内表面可具有从大约1微英寸至大约16微英寸的粗糙度。在所示实施例中,内表面具有从大约8微英寸至大约16微英寸的粗糙度。在一些实施例中,内表面具有从大约1微英寸至大约8微英寸的粗糙度。精抛光的内表面14显著减少或者防止了聚合物衬垫碎渣的产生。
[0060]在图3中所示实施例中,壳体12由金属制成,不过本领域技术人员应理解的是,同样可使用其他材料。例如,壳体12可由钛、钴铬、不锈钢或其他生物兼容材料制成。
[0061]壳体12包括面54和接纳抗转凸块33的扇形凹口16。在图3中所示实施例中,壳体12包括12个扇形凹口,第一衬垫32具有12个对应的抗转凸块33以实现更大的微稳定性。每一扇形凹口16形成壳体12内壁28上的唇或台阶18。壳体12进一步包括围绕内壁28沿周向或沿周边延伸的环形槽20。壳体12还包括切口22。切口22允许探查工具接触到组件的衬垫部分。
[0062]在一些实施例中,壳体12可包括一个或多个紧固孔40。螺钉、组件销、或其他紧固装置(未示出)可***穿过紧固孔40而将壳体12附接到骨。进一步地,在一些实施例中,壳体可在其外部具有多孔涂层。作为示例,壳体12的外部可具有烧结金属涂层、气相沉积金属涂层、热喷金属涂层、或被化学蚀刻。多孔涂层可允许骨生长到壳体12中。
[0063]壳体12包括第一槽24或第二槽26。可替代地,槽24、26可称为凹口或凹腔。槽24、26可以完全或部分地围绕壳体12内部30延伸。这样,槽24、26可形成环形环,并具有围绕周边间断分开的C形,具有半球形,或具有一些其他形状。最佳地如图4中所示,第一槽24和第二槽26分别接纳第一衬垫32的第一***34和第二***36。第一***34可替代地可被称为第一***构件或第一肋,而第二***36可替代地可被称为第二***构件或第二肋。在金属或陶瓷衬垫的情况下,***34、36可为诸如开口环或弹簧之类的分立部件,或者可被模制到衬垫外部。
[0064]重要的是使用两个突出部和槽,这是因为通过调节这四个物件的公差和尺度可有效控制衬垫32的推入和推出。例如,可以通过小的推入力来安装衬垫32,不过也具有相当大的推出力。这样,医生可容易地通过手实现衬垫推入,不过如果不使用工具,则衬垫不会从壳体脱离。在另一实施例中,衬垫32可通过大的推入力安装并具有甚至更大的推出力。突出部25形成在槽24、26之间。通过控制突出部25与第二***36之间的界面以及其他尺度,可以调节推入力和推出力。如果第二***36与突出部25严重阻碍突出部25,则衬垫32将同时具有大力的推入和推出。在这种情况下,可能必要的是,在安装前显著冷却衬垫32以临时减小其尺寸。不过,如果第二***36仅略微阻碍突出部25,则衬垫32可通过小的推入力被***并通过大的推出力被移除。这是因为,一旦***34、36接合槽24、26,则两个***都将有助于所需推出力。不过,在推入的情况下,所需力仅足以使第二***36越过突出部25并使第一***34接合第一槽24。
[0065]第一槽24和第二槽26位于内壁28下方。这很重要,因为槽24、26的位置使第一衬垫32的锁定机构免于软组织的阻碍。换句话说,由于***34、36在壳体12的下部分上接合槽24、26,因此,软组织阻碍第一衬垫32锁定到壳体的可能性显著降低。
[0066]图5例示了壳体12的截面侧视图。壳体12具有延伸穿过壳体顶点的中心轴线50。槽24、26位于壳体12的内表面14上。线L从内表面14与下槽26相遇处延伸到中心轴线50与平坦表面52相遇处。平坦表面52由延伸通过壳体12的面54的平面限定。角度A由中心轴线和线L限定。角度A为大约10度至大约70度。图5也例示了第一距离或尺度D1。尺度D1是上槽24与下槽26之间的距离。尺度D1为大约1毫米至大约20毫米。在图5中所示实施例中,尺度D1为大约2毫米至大约4毫米。
[0067]图6和7例示了总体上由附图标记100指示的髋臼杯组件的第二实施例。髋臼杯组件100包括第二衬垫110、带或环112、和壳体12。作为示例,第二衬垫110可为陶瓷衬垫,例如铝陶瓷衬垫。另外的示例包括金刚石衬垫,由多晶金刚石复合材料制成的衬垫,由氧化锆制成的衬垫,或由包括交联聚乙烯在内的聚乙烯制成的衬垫。带112可由金属制成。例如,带112可由不锈钢、钛、钴铬、或诸如镍钛诺之类的形状记忆合金制成。带112粘附到衬垫110的外部分114。带112适于与壳体12的内壁28配合。带112和内壁28可为锥形。例如,内壁28的锥度可为大约2度至大约36度。在图6中所示实施例中,内壁28具有大约18度的锥度。带112允许陶瓷衬垫被移除和重新***。这很重要,因为之前移除和重新安装陶瓷衬垫是不妥当的。进一步地,带112改善了围绕第二衬垫110的力分布,并消除或至少显著减少了陶瓷衬垫在***时破裂的可能性,特别是当存在失配时。衬垫110具有面130。带112可在面130上方、面130下方或大致平齐于面130而延伸。如果带112在面130上方延伸,则带112可在某些情况下防止冲击。在图6和7所示实施例中,带大致平齐于面130。
[0068]带112具有内表面140和与内表面140分开的外表面142。内表面140在尺寸上和形状上适应于衬垫110的外部分114,而外表面142在尺寸上和形状上适应于内壁28。外表面142与内表面140隔开第二距离或称第二尺度D2。距离D2可从大约半毫米至大约30毫米变化,且更适合地从大约半毫米至大约10毫米变化。在图6中所示实施例中,距离D2大约为3/4毫米。
[0069]在一些实施例中,壳体12可接纳不同尺寸的衬垫。髋臼杯组件100可包括多个衬垫,每一衬垫包括具有不同尺寸内表面的带,但每一衬垫包括相同尺寸的外表面。这样,所述多个衬垫由于外表面尺寸相同而均装配于相同的壳体。不过内表面尺寸不同允许不同尺寸的衬垫。尺寸不同可通过调节带112的距离D2而调节。仅作为示例的是,单一壳体12可接纳26、28和32毫米内直径的衬垫。这很重要,因为模块性降低了制造成本并为医生提供了大量的手术相关选择。
[0070]在其他实施例中,衬垫110可装配在不同尺寸的壳体内。髋臼杯组件100可包括多个衬垫,每一衬垫包括具有不同尺寸外表面的带,但每一衬垫包括相同尺寸的内表面。这样,所述多个衬垫具有相同的内直径尺寸但具有不同尺寸的外表面,外表面的尺寸适应于特定尺寸的壳体。尺寸不同可通过调节带112的距离D2而调节。仅作为示例的是,单一衬垫110可装配在46、48和50毫米内直径的壳体内。这很重要,因为模块性降低了制造成本并为医生提供了大量的手术相关选择。
[0071]图8和9例示了总体上由附图标记200指示的髋臼杯组件的第三实施例。髋臼杯组件200包括第三衬垫212和壳体12。作为示例,第三衬垫212可为金属衬垫,例如钴铬衬垫。可替代地,第三衬垫212可为陶瓷、塑料或复合材料。衬垫212包括外部分216。外部分216适于与壳体12的内壁28配合。外部分216和内壁28可为锥形。例如,内壁28的锥度可为大约2度至大约36度。在图8中所示实施例中,内壁28具有大约18度的锥度。在一些实施例中,组件200可进一步包括塞214。塞214可用于覆盖紧固装置或用于填充未使用的孔。在图9中,塞214已经移除以便清楚显示。
[0072]图10、11和12例示了可应用于带112或外部分216以实现衬垫的锁定增强的各种表面增强结构。在图10中,拱形“梯级”220可机加工为带112或外部分216。类似地,在图11中,“倒置梯级”222可机加工为带112或外部分216。梯级表面结构220或倒置梯级结构可用于保持锁定的完整性,即使在多次重新***之后。在图12中,带112或外部分216可具有预定的表面粗糙度224。表面粗糙度224可通过粗介质喷制实现,例如通过喷砂、玻璃珠喷制等实现。可替代地,表面增强结构220、222、224可应用于内壁28。而且,多种类型的涂层可施加于带112、外部分216、或内壁28。作为示例,这些表面可具有金属、塑料、金刚石或复合材料涂层。
[0073]图13例示了总体上由附图标记300指示的髋臼杯组件的第四实施例。髋臼杯组件300包括壳体12和限制支承衬垫310。在限制支承衬垫中,股骨头312被固定在衬垫内。限制支承衬垫经常采用第三锁定特征,这是因为其通常需要更大的分离力。可替代地,环形法兰可附接到衬垫,且环形法兰接合第一槽24。锁定环314可用于单件式或两件式的限制衬垫结构。
[0074]图14例示了总体上由附图标记350指示的髋臼杯组件的第四实施例。髋臼杯组件是两件式结构,其中包括壳体12、支承表面部件354和固定机构358。对于两件式机构,支承表面部件354***壳体中,股骨头356置于衬垫中,固定机构358在头组件之前设置在股骨头部件356上。一旦髋减小,则固定机构358***并锁定到壳体中,由此紧固完整的组件结构。作为示例,固定机构可接合环形槽20(最佳地如图3中所示)。
[0075]衬垫32、110、212、310、354可为中立衬垫、前倾衬垫、唇形支承衬垫或侧向支承衬垫。这样,所示实施例仅为示例性的。进一步地,衬垫32、110、212、310、354的内部或外部可涂覆以不同类型的涂层。例如,这些表面可具有金属、塑料、金刚石或复合材料涂层。
[0076]图15和16例示了模块式髋臼试验***400。模块式髋臼试验***400包括试验衬垫410、试验隔离器412、和试验壳体414。模块性显著减少了在髋臼杯***中提供的覆盖全范围尺寸所必需的试验部件的数量,这进一步简化了手术设施所需量。试验衬垫410和试验隔离器412可用于试验壳体414或可植入壳体12。
[0077]图17、18、19和20例示了用于安装衬垫32、110、212、310、354的方法和设备。安装工具500的第一实施例附接到衬垫32、110、212、310、354。安装工具500大致为圆形。在一些实施例中,安装工具500具有挖切部502。安装工具500具有第一肩504和第二肩506。可替代地,这些特征可称为第一固定凹部504和第二固定凹部506。在一些实施例中,第一肩与第二肩相同,使得安装工具的任一侧可使用。在其他实施例中,第一肩504大于或小于第二肩506,使得安装工具500可适应于不同尺寸的衬垫32、110、212、310、354。第一肩504和第二肩506可为方形或锥形。在锥形实施例中,第一肩504和第二肩506可锥度向外用于制造目的或锥度向内以提供与衬垫的线接触。
[0078]在所述方法中,安装工具500略微展开并附接到衬垫32、110、212、310、354,直到第一肩504或第二肩506接触衬垫。安装工具500是弹性的并偏置以弹回其最初位置。这样,安装工具500通过使用弹性力附接到衬垫32、110、212、310、354。
[0079]一旦安装工具500组装到衬垫32、110、212、310、354,则安装工具500和衬垫32、110、212、310、354放置在壳体12上。此后,冲机头部510可用于在衬垫32、110、212、310、354上施压以将衬垫从安装工具500移除,并且将衬垫32、110、212、310、354安装在壳体12中。使用安装工具500允许衬垫32、110、212、310、354在壳体12内自动居中并对准。使用安装工具500显著降低了在安装时衬垫可能相对于壳体变歪的可能性。进一步地,安装工具500可在安装过程中用作软组织牵引器。安装工具500的外部分可用于当衬垫***壳体中时将软组织推开。
[0080]安装工具500可重复使用或一次性使用。例如,安装工具500可由诸如不锈钢的金属制成,安装工具可在安装衬垫之后消毒并重新使用。可替代地,安装工具500可由聚合物或塑料制成并在衬垫***之后被弃置。在塑料材料的情况下,安装工具可通过颜色标记以表明特定尺寸或表明特定商标。
[0081]图21和22例示了总体上由附图标记600指示的安装工具的第二实施例。安装工具600包括切口610。切口610允许安装工具600的内部分620弯曲。这样,内部分620的弯曲提供了可施加于衬垫32、110、212、310、354的弹性力。类似于第一实施例,安装工具600组装到衬垫32、110、212、310、354,安装工具600和衬垫放置在壳体12上。此后,冲机头部510可用于在衬垫上施压以将衬垫从安装工具600移除,并且将衬垫安装在壳体12中。使用安装工具600允许衬垫在壳体12内自动居中并对准。
[0082]图23例示了用于将带112安装在衬垫110上的紧固件的第一实施例700。紧固件700包括紧固面704和凹井706。为了将带112安装到衬垫110上,带112和衬垫110放置在紧固件700上,而且具有压盘702的压机(未示出)用于将带112压在衬垫110上。第一,紧固件700安装到压机,压机可为电脑数控压机。第二,压机被设置以一定的位移速度、最小力和最大力。位移速度可从大约0.01英寸/分钟至最大为大约2.00英寸/分钟。在所示实施例中,位移速度为大约0.80英寸/分钟至最大为大约1.10英寸/分钟。最小力在从大约5000磅至11000磅的范围内。在所示实施例中,最小力约为8000磅。最大力在从大约8000磅至15000磅的范围内。在所示实施例中,最大力约为10000磅。第三,带112被手动放置在衬垫110上。第四,带112和衬垫110放置在紧固件700上,其中衬垫110突出进入凹井706中,而带112位于紧固面704上。第五,压盘702行进直到其接触衬垫110的面130。衬垫110上的初始预载力可从大约零磅至大约10磅。第六,压盘702将力F施加于衬垫110上,直到在带112与衬垫110之间实现位移D3。位移D3为零时,公差沿任一方向为1毫米。优选地,位移D3为零时,公差沿任一方向为1/4毫米。此后,对组装后的带112和衬垫110进行材料传输瑕疵的检查。可使用显微镜检查组装情况。
[0083]图24例示了用于将带112安装在衬垫110上的紧固件的第二实施例800。紧固件800包括沉孔803、紧固面804和凹井806。为了将带112安装到衬垫110上,带112和衬垫110放置在紧固件800上,而且具有压盘802的压机(未示出)用于将带112压在衬垫110上。第一,紧固件800安装到压机,压机可为电脑数控压机。第二,压机被设置以一定的位移速度、最小力和最大力。位移速度可从大约0.01英寸/分钟至最大为大约2.00英寸/分钟。在所示实施例中,位移速度为大约0.80英寸/分钟至最大为大约1.10英寸/分钟。最小力在从大约5000磅至11000磅的范围内。在所示实施例中,最小力约为8000磅。最大力在从大约8000磅至15000磅的范围内。在所示实施例中,最大力约为10000磅。第三,带112被手动放置在衬垫110上。第四,带112和衬垫110放置在紧固件800上,其中衬垫110突出进入凹井806中,而带112位于沉孔803中并处于紧固面804上。沉孔803提供了使组件在凹井806上自居中的优点。第五,压盘802行进直到其接触衬垫110的面130。衬垫110上的初始预载力可从大约零磅至大约10磅。第六,压盘802将力F施加于衬垫110上,直到在带112与衬垫110之间实现位移D3。位移D3为零时,公差沿任一方向为1毫米。优选地,位移D3为零时,公差沿任一方向为1/4毫米。此后,对组装后的带112和衬垫110进行材料传输瑕疵的检查。可使用显微镜检查组装情况。
[0084]根据前述内容,可见的是,本发明的多个优点得以实现和获得。
[0085]各实施例被选择和描述以最佳说明本发明的原理及其实际应用,从而使本领域技术人员能够通过各种实施例并且通过适合于预期具体用途的各种修改而最好地实施本发明。
[0086]由于在不背离本发明范围的情况下可对在此描述和图示的结构和方法进行各种修改,因此,应理解的是,在以上描述中包含的或在附图中显示的所有内容应被理解为是示例性的而非限制性的。例如,虽然第一槽和第二槽已经图示为环形的,但本领域技术人员应理解的是,所述槽可围绕壳体的内表面间断分开而仍可实现相同的功能。这样,本发明的广度和范围应不限于任何上述示例性实施例,而应仅根据在此所附权利要求书及其等同方案而被限定。
Claims (23)
1、一种髋臼杯组件,包括:
a.壳体,所述壳体具有内表面和外表面,所述内表面进一步包括第一槽、第二槽和锥形内壁;
b.衬垫,适于装配在所述壳体的所述内表面内;
c.其中,所述衬垫从包括聚合物衬垫、陶瓷衬垫和金属衬垫的组中选出;和
d.其中,聚乙烯衬垫包括内部分和外部分,所述外部分包括第一***和第二***,陶瓷衬垫进一步包括带,金属衬垫进一步包括锥形外部分。
2、根据权利要求1所述的髋臼杯组件,其中,所述聚合物衬垫从包括交联聚乙烯和传统聚乙烯的组中选出。
3、根据权利要求1或2所述的髋臼杯组件,其中,所述衬垫包括抗转凸块,所述壳体包括至少一个扇形凹口。
4、根据权利要求1-3中任一项所述的髋臼杯组件,其中,所述壳体包括***工具孔。
5、根据权利要求1-4中任一项所述的髋臼杯组件,其中,所述壳体的内表面被精抛光。
6、根据权利要求1-5中任一项所述的髋臼杯组件,其中,所述壳体由从包括钛、钴铬和不锈钢的组中选出的材料制成。
7、根据权利要求1-6中任一项所述的髋臼杯组件,其中,所述壳体进一步包括至少一个紧固孔。
8、根据权利要求1-7中任一项所述的髋臼杯组件,其中,所述壳体进一步包括在所述外表面上的多孔涂层。
9、根据权利要求1-8中任一项所述的髋臼杯组件,其中,所述带具有锥度。
10、根据权利要求1-9中任一项所述的髋臼杯组件,其中,所述锥形内壁、所述带或所述锥形外部分包括表面增强结构。
11、根据权利要求1-10中任一项所述的髋臼杯组件,其中,所述表面增强结构从包括拱形梯级、倒置梯级或预定表面粗糙度的组中选出。
12、根据权利要求1-11中任一项所述的髋臼杯组件,进一步包括金属锁定环,所述金属锁定环接合所述第一槽。
13、根据权利要求1-12中任一项所述的髋臼杯组件,其中,所述衬垫包括环形法兰。
14、根据权利要求1-13中任一项所述的髋臼杯组件,进一步包括固定机构。
15、根据权利要求1-14中任一项所述的髋臼杯组件,其中,所述衬垫从包括限制衬垫、中立衬垫、前倾衬垫、唇形支承衬垫和侧向支承衬垫的组中选出。
16、根据权利要求1-15中任一项所述的髋臼杯组件,进一步包括附接到所述衬垫的安装工具。
17、根据权利要求16所述的髋臼杯组件,其中,所述安装工具包含金属或塑料。
18、根据权利要求1-15中任一项所述的髋臼杯组件,其中,所述壳体具有面和顶点、延伸穿过所述顶点的中心轴线、和线,所述线从所述内表面与所述下槽相遇处延伸到所述中心轴线与由延伸穿过所述壳体的面的平面限定的平坦表面相遇处,所述中心轴线和所述线限定一角度,其中所述角度在大约10度至大约80度的范围内。
19、根据权利要求18所述的髋臼杯组件,其中,所述角度在大约40度至大约70度的范围内。
20、根据权利要求1-15中任一项所述的髋臼杯组件,其中,所述第一槽和所述第二槽分开第一距离,所述第一距离在大约1毫米至大约20毫米的范围内。
21、根据权利要求20所述的髋臼杯组件,其中,所述第一距离在大约2毫米至大约4毫米的范围内。
22、根据权利要求1-15中任一项所述的髋臼杯组件,其中,所述带具有内表面和与所述内表面隔开第二距离的外表面,所述第二距离从大约半毫米至大约30毫米变化。
23、根据权利要求22所述的髋臼杯组件,其中,所述第二距离在大约半毫米至大约10毫米的范围内。
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2006
- 2006-10-18 AU AU2006340337A patent/AU2006340337B2/en active Active
- 2006-10-18 US US12/293,705 patent/US8679187B2/en active Active
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- 2006-10-18 CN CN2006800538963A patent/CN101400322B/zh active Active
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- 2006-10-18 WO PCT/US2006/060044 patent/WO2007108848A1/en active Application Filing
- 2006-10-18 CN CN201310139807.9A patent/CN103202736B/zh active Active
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- 2013-05-02 US US13/875,362 patent/US9463093B2/en active Active
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Cited By (9)
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CN102883686A (zh) * | 2009-12-16 | 2013-01-16 | 斯洛博丹·泰皮奇 | 局部髋关节假体 |
US11202711B2 (en) | 2009-12-16 | 2021-12-21 | Scyon Orthopaedics Ag | Partial hip prosthesis |
US10966837B2 (en) | 2009-12-21 | 2021-04-06 | Derek James Wallace McMinn | Cup with conical permanent pegs |
CN102579165A (zh) * | 2011-02-16 | 2012-07-18 | 罗德尼·蓝·沃尔特·理查德森 | 具有转动式支撑部件的髋臼杯 |
CN102579165B (zh) * | 2011-02-16 | 2015-07-22 | Rr医药私人有限公司 | 具有转动式支撑部件的髋臼杯 |
CN103732185A (zh) * | 2011-06-15 | 2014-04-16 | 德里克·詹姆斯·***·麦克明 | 形成聚合物部件的方法 |
CN103732185B (zh) * | 2011-06-15 | 2016-04-06 | 德里克·詹姆斯·***·麦克明 | 形成聚合物部件的方法 |
CN108969152A (zh) * | 2018-09-06 | 2018-12-11 | 北京安颂科技有限公司 | 一种髋臼假体和人工髋关节 |
CN110495974A (zh) * | 2019-09-30 | 2019-11-26 | 优适医疗科技(苏州)有限公司 | 新型双动髋关节假体 |
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CN101400322B (zh) | 2013-05-29 |
US20130245781A1 (en) | 2013-09-19 |
AU2006340337A1 (en) | 2007-09-27 |
US10383745B2 (en) | 2019-08-20 |
US9463094B2 (en) | 2016-10-11 |
CA2646061A1 (en) | 2007-09-27 |
CN103202736A (zh) | 2013-07-17 |
US20170020688A1 (en) | 2017-01-26 |
EP2007318A1 (en) | 2008-12-31 |
CA2646061C (en) | 2014-06-17 |
US20210145604A1 (en) | 2021-05-20 |
JP5296667B2 (ja) | 2013-09-25 |
US20210145605A1 (en) | 2021-05-20 |
EP2007318B8 (en) | 2014-03-12 |
US20190321196A1 (en) | 2019-10-24 |
EP2007318B1 (en) | 2013-07-10 |
AU2006340337B2 (en) | 2013-12-05 |
US9463093B2 (en) | 2016-10-11 |
CN103202736B (zh) | 2016-06-15 |
US11096798B2 (en) | 2021-08-24 |
US20140156018A1 (en) | 2014-06-05 |
JP2009530021A (ja) | 2009-08-27 |
ES2430199T3 (es) | 2013-11-19 |
US8679187B2 (en) | 2014-03-25 |
US20110009975A1 (en) | 2011-01-13 |
WO2007108848A1 (en) | 2007-09-27 |
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