CN101677860A - 约束内衬锁环和聚乙烯内衬适合部件 - Google Patents

约束内衬锁环和聚乙烯内衬适合部件 Download PDF

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Publication number
CN101677860A
CN101677860A CN200780051212A CN200780051212A CN101677860A CN 101677860 A CN101677860 A CN 101677860A CN 200780051212 A CN200780051212 A CN 200780051212A CN 200780051212 A CN200780051212 A CN 200780051212A CN 101677860 A CN101677860 A CN 101677860A
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tab
foot
cup
lock ring
chamber
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CN101677860B (zh
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B·W·格拉迪施
J·E·霍伊特
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MICROTECHNIC
Exactech Inc
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MICROTECHNIC
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Abstract

本发明的一个实施例涉及一种假体，包括：髋臼杯，其中所述杯具有敞开端和闭合端，其中所述杯的敞开端由缘边限定并且其中所述缘边具有向外表面；布置在所述缘边中的至少一个腔，其中所述腔从在所述向外表面的所述腔的第一端延伸到朝着所述杯的闭合端的所述腔的第二端，并且其中所述腔包括：在所述腔的第二端的底切；锁环；和从所述锁环延伸的至少一个突舌，其中所述突舌包括在其间具有间隔的第一脚和第二脚，其中每个脚具有第一端和第二端。

Description

约束内衬锁环和聚乙烯内衬适合部件
相关申请
本申请要求2006年12月12日提交的美国临时申请No.60/869,694的权益，上述申请全文被引用于此作为参考。
技术领域
本发明的一个实施例涉及一种约束内衬锁环。
本发明的另一实施例涉及一种聚乙烯内衬适合部件。
为了描述本发明和要求本发明的权利，术语“弹性”(例如弹性脚)用于表示可以响应力的施加而沿着第一方向偏转并且然后当力被去除时沿着与第一方向基本相反的第二方向弹回(至少部分)的部件。
背景技术
常规假体(例如用于全髋关节成形术)包括髋臼杯、约束内衬和锁环。
附图说明
图1是根据本发明的一个实施例的髋臼杯(簇孔，多晶金刚石，52mm，组2)的侧视图；
图2是图1的髋臼杯的平面图；
图3是图1的髋臼杯的侧视图(在横截面中)；
图4是图1的髋臼杯的另一侧视图(在横截面中)；
图5显示了参考图2的截面C-C；
图6显示了参考图5的细节D；
图7显示了参考图3的细节E；
图8显示了参考图3的细节F；
图9显示了参考图2的细节G；
图10显示了参考图1的细节H；
图11显示了参考图10的细节J；
图12是图1的髋臼杯的另一平面图；
图13是图1的髋臼杯的另一平面图；
图14是根据本发明的另一实施例的髋臼杯(簇孔，多晶金刚石，48mm，组1)的侧视图；
图15是图14的髋臼杯的平面图；
图16是图14的髋臼杯的侧视图(在横截面中)；
图17是图14的髋臼杯的另一侧视图(在横截面中)；
图18显示了参考图15的截面C-C；
图19显示了参考图18的细节D；
图20显示了参考图16的细节E；
图21显示了参考图16的细节F；
图22显示了参考图15的细节G；
图23显示了参考图14的细节H；
图24显示了参考图23的细节J；
图25是图14的髋臼杯的另一平面图；
图26是图14的髋臼杯的另一平面图；
图27是根据本发明的另一实施例的约束内衬锁环的平面图；
图28是图27的约束内衬锁环的另一平面图；
图29是图27的约束内衬锁环的侧视图；
图30是图27的约束内衬锁环的另一侧视图；
图31显示了参考图29的细节B；
图32显示了参考图28的细节A；
图33显示了参考图29的细节E；
图34显示了参考图28的截面D-D；
图35是根据本发明的另一实施例的约束内衬(28mm，组1，48/50mm杯)的平面图；
图36是图35的约束内衬的另一平面图；
图37是图35的约束内衬的侧视图(在横截面中)；
图38显示了参考图35的截面C-C；
图39显示了参考图37的细节E；
图40显示了参考图38的细节F；
图41显示了参考图36的细节B；
图42显示了参考图37的细节D；
图43显示了图35的约束内衬的另一侧视图；
图44是根据本发明的另一实施例的约束内衬(32mm，组2，52/54mm杯)的平面图；
图45是图44的约束内衬的另一平面图；
图46是图44的约束内衬的侧视图(在横截面中)；
图47显示了参考图44的截面C-C；
图48显示了参考图46的细节E；
图49显示了参考图47的细节F；
图50显示了参考图45的细节B；
图51显示了参考图46的细节D；
图52显示了图44的约束内衬的另一侧视图；
图53是根据本发明的一个实施例的髋臼杯的平面图；
图54是根据本发明的一个实施例的约束内衬锁环的平面图；
图55显示了用于将图54的锁环锁定到图53的杯的突舌的某些细节；
图56是显示用于将图54的锁环锁定到图5的杯的突舌/底切锁定机构的某些细节的横截面图；
图57是根据本发明的一个实施例的约束内衬锁环的平面图；
图58显示了参考图57的截面A-A；
图59显示了用于将图54的锁环锁定到图53的杯的突舌的某些细节；
图60显示了用于将图54的锁环锁定到图53的杯的突舌的某些细节；
图61显示了用于将图54的锁环锁定到图53的杯的髋臼杯中的底切腔的某些细节；
图62显示了根据本发明的另一实施例的假体的横截面；
图63显示了用于图62的假体的类型的典型锁环的平面图；
图64显示了用于图62的假体的类型的典型锁环的另一平面图；
图65是根据本发明的一个实施例的髋臼杯的平面图；
图66显示了图65的髋臼杯的典型过盈配合部件的横截面；
图67显示了图65的髋臼杯的典型过盈配合部件的另一横截面；和
图68显示了根据本发明的一个实施例的聚乙烯内衬的典型过盈配合部件的横截面。
值得注意的是，部件可以由特定图中的附图标记识别。在其他图中，类似部件可以由添加字母后缀的相同附图标记识别(这样的类似元件如图中所示可以在尺寸和/或形状的细节上不同)。
除了公开的那些益处和改进以外，从结合附图进行的以下描述将显而易见本发明的其他目标和优点。附图构成该说明书的一部分并且包括本发明的示例性实施例，并且示出了本发明的各种目标和部件。
具体实施方式
在这里公开本发明的详细实施例；然而，应当理解的是公开实施例仅仅是可以以各种形式体现的本发明的举例说明。另外，结合本发明的各种实施例给出的每个例子应当是示例性的而不是限定性的。进一步地，图不一定按比例，一些部件可能被放大以显示特定部件的细节(并且图中所示的任何尺寸、材料和类似细节当然应当是示例性的而不是限定性的)。所以，在这里公开的特定结构和功能细节不应当被理解成限制，而是仅仅作为用于教导本领域技术人员多样地利用本发明的典型基础。
如这里所述，本发明的一个实施例提供了一种约束内衬锁环，其可以容易地被植入。
进一步地，本发明的另一实施例提供了一种约束内衬锁环，其中可以确认与髋臼杯正确匹配。
更进一步地，本发明的另一实施例提供了一种约束内衬锁环，其可以容易地被去除(例如以解决修正的需要)。这样的去除例如可以通过提供顺时针或逆时针运动以使锁定部件脱离髋臼杯被执行。
更进一步地，本发明的另一实施例提供了一种约束内衬锁环，其可以用于全髋关节成形术并且可以容易地被组装和拆卸(根据需要)。
更进一步地，本发明的另一实施例提供了一种约束内衬锁环，其可以为聚乙烯内衬提供约束部件。
更进一步地，本发明的另一实施例提供了一种约束内衬锁环，其可以为硬支承表面(例如金刚石)内衬提供约束部件。
更进一步地，本发明的另一实施例提供了一种约束内衬锁环，其中每个锁定部件的几何形状可以被优化以产生用于组装/拆卸的预期机械性质(根据需要)。
更进一步地，本发明的另一实施例提供了一种约束内衬锁环，其中所述约束内衬锁环的可靠固定允许在所述约束内衬锁环不从髋臼杯分离的情况下优化使股骨头脱位的力。
更进一步地，本发明的另一实施例提供了一种约束内衬锁环，其可以通过用去除器械施加顺时针或逆时针运动被去除(例如如果发生股骨头脱位的话)。这样容易地去除锁环将很可能不对固定好的髋臼杯产生损害。在去除锁环之后，股骨头可以被减小并且锁环被再固定到髋臼杯。
进一步地，如这里所述，本发明的一个实施例提供了(例如在初始植入期间和在此之后)导致内衬(例如聚乙烯约束内衬)与髋臼杯之间的过盈配合的适合部件(间断适合部件或不间断适合部件)。
进一步地，在本发明的另一实施例中，内衬与髋臼杯之间的过盈配合可以提供紧密度的触觉感知和/或最小化在内衬/髋臼杯界面处的微运动。
更进一步地，在本发明的一个实施例中，过盈配合可以在室温和体温下提供内衬之间的改善配合。
现在参考图1-13和27-34，将论述根据本发明的一个实施例的假体的某些细节。更特别地，如这些图中所见，髋臼杯101可以被设置。杯101可以包括敞开端和闭合端，其中杯101的敞开端可以由缘边103限定并且缘边103可以具有向外表面105。至少一个腔107可以布置在缘边103中(在图中显示了一个腔，但是可以看出，多个腔可以被设置)，腔107可以从腔的在向外表面105处的第一端延伸到腔的朝着杯的闭合端的第二端(腔107可以包括在腔的第二端的底切，例如参见图61)。
进一步地，锁环109可以被设置。至少一个突舌111(在图中显示了一个突舌，但是可以看出，多个突舌可以被设置)可以从锁环109延伸。突舌111可以包括在其间具有间隔的第一脚113和第二脚115。每个脚113、115可以具有第一端和第二端，其中每个脚113、115的第一端位于锁环109处，其中第一脚113的第二端可以包括突舌突出部117，并且其中至少第二脚115是弹性的，使得当第二脚115朝着第一脚偏转时，第一脚113与第二脚115之间的间隔被减小。
更进一步，通过邻近缘边103设置锁环109和将突舌111插入腔107中，使得当突舌111进入腔107时第二脚115压靠在腔107的侧壁上，以朝着第一脚113初始偏转第二脚115，并且第一脚113的突舌突出部117由随后远离第一脚113向回偏转的第二脚115的力推动到腔107的底切中，锁环109可以可拆卸地锁定到杯101(例如参见图56)。
更进一步地，通过相对于杯101旋转锁环109，使得当第二脚115压靠在腔107的侧壁上时，第二脚115朝着第一脚113偏转，并且第一脚113的突舌突出部117从底切被移出，以允许锁环107从杯101分离，锁环109可以从杯101解锁(例如参见图56)。
在一个例子中，第一脚113可以是弹性的，并且通过邻近缘边103设置锁环109和将突舌111插入腔107中，使得当突舌111进入腔107时，第一脚113压靠在腔107的侧壁上，以朝着第二脚115初始偏转第一脚113，并且当第一脚113随后远离第二脚115向回偏转时，第一脚113的突舌突出部117由第一脚113的力推动到底切中，锁环109可以可拆卸地锁定到杯101。
在另一例子中，底切的顶表面的至少一部分可以是成角度的，从而当突舌突出部117被推动到底切中时朝着杯101的缘边103偏压锁环109(例如参见图56)。
在另一例子中，突舌突出部117的顶表面的至少一部分可以是成角度的，从而当突舌突出部117被推动到底切中时朝着杯101的缘边103偏压锁环109(例如参见图55)。
在另一例子中，相对于在第一脚113和第二脚115的每一个的第二端与第一脚113和第二脚115的每一个的第一端之间的位置处的间隔的宽度，在第一脚113和第二脚115的每一个的第二端的位置处，第一脚113与第二脚115之间的间隔的宽度可以更窄(例如参见图59)。
在另一例子中，假体可以进一步包括内衬119，其中内衬119布置在杯101内。
在另一例子中，假体可以包括股骨部件，其中股骨部件包括球头305，并且当内衬307布置在杯309内时，球头305与内衬307相邻布置(参见图62)。在另一例子中，股骨部件可以进一步包括附连到球头305的杆315。
在另一例子中，球头305可以由锁环301/303保持在杯309内。
在另一例子中，内衬可以包括聚乙烯。
在另一例子中，杯101可以具有内碗面、敞开端和闭合端；内碗面邻近敞开端可以是基本圆形的；并且升高部件125可以邻近杯101的敞开端布置在内碗面上(例如参见图6和19)，其中升高部件125可以围绕内碗面的圆周布置(升高部件125可以提供与布置在杯101内的内衬119的过盈配合)。
在另一例子中，升高部件可以基本围绕内碗面的整个圆周布置。
在另一例子中，升高部件可以在邻近敞开端布置在内碗面中的多个腔处被中断。
在另一例子中，可以提供一种假体，包括：髋臼杯，其中所述杯具有敞开端和闭合端，其中所述杯的敞开端由缘边限定并且其中所述缘边具有向外表面；布置在所述缘边中的多个腔，其中每个腔从所述腔的在所述向外表面的第一端延伸到所述腔的朝着所述杯的闭合端的第二端，并且其中每个腔包括在所述腔的第二端处的底切；锁环；和从所述锁环延伸的多个突舌，其中每个突舌包括在其间具有间隔的第一脚和第二脚，其中每个突舌的每个脚具有第一端和第二端，其中每个突舌的每个脚的第一端位于所述锁环处，其中每个突舌的第一脚的第二端包括突舌突出部，并且其中至少每个突舌的第二脚是弹性的，使得当每个突舌的第二脚朝着每个突舌的第一脚偏转时第一脚与第二脚之间的间隔被减小；其中通过邻近所述缘边设置所述锁环和将每个突舌插入所述多个腔的相应腔中，使得当每个突舌进入每个相应腔时，每个突舌的第二脚压靠在所述多个腔的相应腔的侧壁上，以朝着每个突舌的第一脚初始偏转每个突舌的第二脚，并且每个突舌的第一脚的每个突舌突出部由随后远离每个突舌的第一脚向回偏转的每个突舌的第二脚推动到相应的底切中，所述锁环可以可拆卸地锁定到所述杯上。
在一个例子中，通过相对于所述杯旋转所述锁环，使得当每个突舌的第二脚压靠在相应腔的侧壁上时，每个突舌的第二脚朝着每个突舌的第一脚偏转，并且每个突舌的第一脚的每个突舌突出部从相应的底切被移出，以允许所述锁环从所述杯分离，所述锁环可以从所述杯解锁。
在另一例子中，每个突舌的第一脚可以是弹性的，并且通过邻近所述缘边设置所述锁环和将每个突舌插入所述多个腔的相应腔中使所述锁环可拆卸地锁定到所述杯可以进一步包括：当每个突舌进入相应腔时，每个突舌的第一脚压靠在相应腔的侧壁上，以朝着每个突舌的第二脚初始偏转每个突舌的第一脚，并且当每个突舌的第一脚随后远离每个突舌的第二脚向回偏转时，每个突舌的第一脚的每个突舌突出部被推动到相应的底切中。
在另一例子中，腔的数量可以等于整数x，突舌的数量可以等于整数x，并且整数x可以在2至10之间，包括2和10在内。
现在参考图53，显示了根据本发明的一个实施例的髋臼杯101B的平面图。进一步地，图54是根据本发明的一个实施例的约束内衬锁环109A的平面图。更进一步地，图55显示了用于将图54的锁环109A锁定到图53的杯101B的突舌111A的某些细节。更进一步地，图56是显示用于将图54的锁环109A锁定到图53的杯101B的突舌/底切锁定机构的某些细节的横截面图。如这些图中所见，组装观察孔201(在图中显示了一个组装观察孔，但是可以看出，多个组装观察孔可以被设置)可以用于视觉地确认锁环109A完全固定到杯101B上(例如通过透过组装观察孔看到杯)。进一步地，组装观察孔(一个或多个)可以用作将锁环109A组装到杯101B和/或从杯101B拆卸锁环109A的一个或多个工具的附连点(一个或多个)。进一步地，在该例子中，锁环109A的逆时针旋转可以用于从杯101B拆卸锁环109A(当然，假体可以被配置成当锁环顺时针旋转时拆卸)。
现在参考图57，显示了根据本发明的另一实施例的约束内衬锁环的平面图。进一步地，图58显示了参考图57的截面A-A。如这些图中所见，凹槽203(在图中显示了一个凹槽，但是多个凹槽可以被设置)可以用作将锁环109A组装到杯101B和/或从杯101B拆卸锁环109A的一个或多个工具的附连点(一个或多个)。
现在参考图59，显示了用于将图54的锁环锁定到图53的杯的突舌111A的某些细节。进一步地，图60显示了用于将图54的锁环锁定到图53的杯的突舌111A的某些细节。更进一步地，图61显示了用于将图54的锁环锁定到图53的杯的杯101A中的底切腔的某些细节。如这些图中所见，突舌突出部117A的长度“x”可以被优化以获得便于组装和/或拆卸的预期压配合和/或预期循环疲劳额定值。类似地，脚113A、115A的厚度“t”可以被优化以获得便于组装和/或拆卸的预期压配合和/或预期循环疲劳额定值(图60的视图从图59的视图偏移90度)。进一步地，如图59中所见，脚113A、115A之间的间隔可以包括所谓的“键(key)”以帮助减小应力升高并且在组装和/或拆卸期间允许脚113A和/或脚115A的偏转(“键”可以被优化以获得便于组装和/或拆卸的预期压配合和/或预期循环疲劳额定值)。当然，“x”、“t”和“键”的尺寸和几何形状可以单独地或彼此相关地被优化。最后，如图61中所见，腔107B可以包括引入斜面205(以帮助组装)。
现在参考图62，显示了根据本发明的另一实施例的假体的横截面。进一步地，图63显示了用于图62的假体的类型的典型锁环的平面图。更进一步地，图64显示了用于图62的假体的类型的典型锁环的另一平面图。如这些图中所见，聚乙烯或硬支承约束环301和锁环303的使用可以提供将硬支承表面(例如球305和硬支承表面内衬307)约束在用于全髋关节成形术的髋臼杯309内的机构。聚乙烯或硬支承约束环301可以被设置在硬支承表面内衬307(例如金刚石、陶瓷、金属)的缘边上，以防止球305从杯309脱位。在一个例子中，聚乙烯或硬支承约束环301可以具有单一狭槽311以便于植入在球上(参见图63)。在另一例子中，聚乙烯或硬支承约束环301可以具有多个狭槽313(在图中显示了一个狭槽，但是可以看出，多个狭槽可以被设置)，所述狭槽可以由预期组装力确定(参见图64)。在一个特定例子中，可以有2、4或6多个部分狭槽。进一步地，假体可以包括杆315。
现在参考图65，显示了根据本发明的一个实施例的髋臼杯的平面图。进一步地，图66显示了图65的髋臼杯的典型过盈配合部件的横截面。更进一步地，图67显示了图66的髋臼杯的典型过盈配合部件的另一横截面。如这些图中所见，为了提高在室温下聚乙烯内衬的适合性(适配性)，升高部件125B被设置。在一个例子中，该升高部件125B由杯101C中的防转槽口中断。
升高部件(在髋臼杯的开口处位于髋臼杯的面正下方的“尖头(blip)”)产生髋臼杯与内衬之间的过盈。在该例子中，内衬具有稍大于由“尖头”产生的直径的连续直径，以产生两个部分之间的过盈配合。在该例子中，由于防转部件产生的中断，有十二个“尖头”位于髋臼杯冠的内部(当然可以使用除了12以外的任何期望数量)。在一个例子中，对于所有杯直径，“尖头”部件的长度可以保持恒定，使得在植入期间遇到基本相同的插入力范围。对于特定应用可以通过增加或减小“尖头”长度和/或“尖头”与内衬之间的过盈量来优化插入力。
值得注意的是，上述升高部件可以为外科医生提供用于髋臼杯的聚乙烯内衬在室温下紧密或完全适合的感知(典型的现实是一旦系统稳定到体温(大约37℃)，聚乙烯内衬将扩展/增大以产生聚乙烯内衬与金属髋臼杯之间的紧密配合，假设初始配合适当紧密)。
进一步值得注意的是，在金属支座(例如髋臼杯)上的高度适合聚乙烯内衬是使在聚乙烯内衬中从正常关节力形成的应力均匀分布的关键。如果两个匹配部分(一个是聚乙烯并且另一个是金属)不适合，聚乙烯将冷流以找到平衡状态。冷流事件产生内衬几何形状的变化以补偿匹配几何形状的差异。
现在参考图68，这显示了聚乙烯内衬的典型过盈配合部件的横截面。更特别地，如该图中所见，约束内衬119B可以包括用于为髋臼杯提供过盈配合的凹陷或升高部分(“适合部件”)。
尽管描述了本发明的许多实施例，应当理解的是这些实施例仅仅是示例性的而不是限制性的，并且本领域的普通技术人员可以显而易见许多修改。例如，这里所述的任何元件可以以任何期望的尺寸被设置(例如这里所述的任何元件可以以任何期望的定制尺寸被设置或者这里所述的任何元件可以以选自尺寸“族”例如小、中、大的任何期望的尺寸被设置)。进一步地，一个或多个部件可以由以下材料的任何一个制造：(a)任何生物相容材料(取决于外科医生的意愿，所述生物相容材料可以被处理以允许表面骨向内生长或抑制表面骨向内生长)；(b)塑料；(c)纤维；(d)聚合物；(e)金属(纯金属例如钛和/或合金例如Ti-Al-Nb、Ti-6Al-4V、不锈钢)；(f)它们的任何组合。更进一步地，任何金属构造可以是机器加工金属构造。更进一步地，任何数量的突出部(例如用于通过与粘合剂形成粘结进行初始固定和/或例如通过与粘合剂形成粘结进行辅助固定)可以用于指定假体。更进一步地，增加粘合剂覆盖的任何数量的凹部件可以用于指定假体。更进一步地，可以钻入骨中使得可以改善初始/辅助固定的任何数量的凸部件可以用于指定假体。更进一步地，任何数量的骨螺钉(例如，例如用于初始固定和/或例如用于辅助固定)可以用于指定假体。更进一步地，这里所述的任何步骤可以以任何期望的顺序被执行(并且任何附加步骤可以根据需要被增加和/或任何步骤可以根据需要被删除)。

Claims (17)

1.一种假体，包括：
髋臼杯，其中所述杯具有敞开端和闭合端，其中所述杯的敞开端由缘边限定并且其中所述缘边具有向外表面；
布置在所述缘边中的至少一个腔，其中所述腔从所述腔的在所述向外表面处的第一端延伸到所述腔的朝着所述杯的闭合端的第二端，并且其中所述腔包括在所述腔的第二端的底切；
锁环；和
从所述锁环延伸的至少一个突舌，其中所述突舌包括第一脚和第二脚，在所述第一脚和所述第二脚之间具有间隔，其中每个脚具有第一端和第二端，其中每个脚的第一端位于所述锁环处，其中所述第一脚的第二端包括突舌突出部，并且其中至少所述第二脚是弹性的，使得当所述第二脚朝着所述第一脚偏转时所述第一脚与所述第二脚之间的间隔被减小；
其中通过邻近所述缘边设置所述锁环和将所述突舌插入所述腔中，使得当所述突舌进入所述腔时，所述第二脚压靠在所述腔的侧壁上，以朝着所述第一脚初始偏转所述第二脚，并且所述第一脚的所述突舌突出部由随后远离所述第一脚向回偏转的所述第二脚推动到所述底切中，所述锁环可拆卸地锁定到所述杯上。
2.根据权利要求1所述的假体，其中通过相对于所述杯旋转所述锁环，使得当所述第二脚压靠在所述腔的侧壁上时，所述第二脚朝着所述第一脚偏转，并且所述第一脚的所述突舌突出部从所述底切被移出，以允许所述锁环从所述杯分离，所述锁环从所述杯解锁。
3.根据权利要求1所述的假体，其中：
所述第一脚是弹性的；并且
通过邻近所述缘边设置所述锁环和将所述突舌插入所述腔中使所述锁环可拆卸地锁定到所述杯进一步包括：当所述突舌进入所述腔时，第一脚压靠在所述腔的侧壁上，以朝着所述第二脚初始偏转第一脚，并且当所述所述第一脚随后远离所述第二脚向回偏转时，所述第一脚的所述突舌突出部被推动到所述底切中。
4.根据权利要求1所述的假体，其中所述底切的顶表面的至少一部分是成角度的，从而当所述突舌突出部被推动到所述底切中时朝着所述杯的所述缘边偏压所述锁环。
5.根据权利要求1所述的假体，其中所述突舌突出部的顶表面的至少一部分是成角度的，从而当所述突舌突出部被推动到所述底切中时朝着所述杯的所述缘边偏压所述锁环。
6.根据权利要求1所述的假体，其中相对于在所述第一脚和所述第二脚中的每一个的第二端与所述第一脚和所述第二脚中的每一个的第一端之间的位置处的间隔的宽度，在所述第一脚和所述第二脚中的每一个的所述第二端的位置处，所述第一脚与所述第二脚之间的间隔的宽度更窄。
7.根据权利要求1所述的假体，进一步包括内衬，其中所述内衬布置在所述杯内。
8.根据权利要求7所述的假体，进一步包括股骨部件，其中所述股骨部件包括球头，并且当所述内衬布置在所述杯内时所述球头与所述内衬相邻布置。
9.根据权利要求8所述的假体，其中所述球头由所述锁环固定在所述杯内。
10.根据权利要求7所述的假体，其中所述内衬包括聚乙烯。
11.一种假体，包括：
髋臼杯，其中所述杯具有敞开端和闭合端，其中所述杯的敞开端由缘边限定并且其中所述缘边具有向外表面；
布置在所述缘边中的多个腔，其中每个腔从所述腔的在所述向外表面的第一端延伸到所述腔的朝着所述杯的闭合端的第二端，并且其中每个腔包括在所述腔的第二端处的底切；
锁环；和
从所述锁环延伸的多个突舌，其中每个突舌包括第一脚和第二脚，在所述第一脚和所述第二脚之间具有间隔，其中每个突舌的每个脚具有第一端和第二端，其中每个突舌的每个脚的所述第一端位于所述锁环处，其中每个突舌的所述第一脚的所述第二端包括突舌突出部，并且其中至少每个突舌的第二脚是弹性的，使得当每个突舌的所述第二脚朝着每个突舌的所述第一脚偏转时每个突舌的所述第一脚与所述第二脚之间的间隔被减小；
其中通过邻近所述缘边设置所述锁环和将每个突舌插入所述多个腔中的相应腔中，使得当每个突舌进入每个相应腔时，每个突舌的所述第二脚压靠在所述多个腔中的相应腔的侧壁上，以朝着每个突舌的所述第一脚初始偏转每个突舌的所述第二脚，并且每个突舌的所述第一脚的每个突舌突出部由随后远离每个突舌的所述第一脚向回偏转的每个突舌的所述第二脚推动到相应底切中，所述锁环可拆卸地锁定到所述杯上。
12.根据权利要求11所述的假体，其中通过相对于所述杯旋转所述锁环，使得当每个突舌的所述第二脚压靠在所述相应腔的侧壁上时，每个突舌的所述第二脚朝着每个突舌的所述第一脚偏转，并且每个突舌的所述第一脚的每个突舌突出部从相应底切被移出，以允许所述锁环从所述杯分离，所述锁环从所述杯解锁。
13.根据权利要求11所述的假体，其中：
每个突舌的所述第一脚是弹性的；并且
通过邻近所述缘边设置所述锁环和将每个突舌插入所述多个腔的相应腔中使所述锁环可拆卸地锁定到所述杯进一步包括：当每个突舌进入所述相应腔时，每个突舌的所述第一脚压靠在所述相应一个腔的侧壁上，以朝着每个突舌的所述第二脚初始偏转每个突舌的所述第一脚，并且当每个突舌的所述第一脚随后远离每个突舌的所述第二脚向回偏转时，每个突舌的所述第一脚的每个突舌突出部被推动到所述相应底切中。
14.根据权利要求11所述的假体，其中所述腔的数量等于整数x，所述突舌的数量等于整数x，并且整数x在2至10之间，包括2和10在内。
15.一种假体，包括：
髋臼杯，其中所述杯具有内碗面、敞开端和闭合端，并且其中所述内碗面邻近所述敞开端基本是圆形的；和
邻近所述杯的所述敞开端布置在所述内碗面上的升高部件，其中所述升高部件围绕所述内碗面的圆周布置；
其中所述升高部件与布置在所述杯内的内衬形成过盈配合。
16.根据权利要求15所述的假体，其中所述升高部件基本围绕所述内碗面的整个圆周布置。
17.根据权利要求15所述的假体，其中所述升高部件在邻近所述敞开端布置在所述内碗面中的多个腔处被中断。
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