CN102026591A - 用于安装至原有关节骨骼的人造耐磨栓 - Google Patents
用于安装至原有关节骨骼的人造耐磨栓 Download PDFInfo
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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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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
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- Cardiology (AREA)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physical Education & Sports Medicine (AREA)
- Rheumatology (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
一种人造耐磨栓,被安装到与关节结构相关联的原有骨骼,并且包括三维复合塑性塑料。原有骨骼的一末端表面被修复,用以为栓的接合作准备,从而限定一被修复的人造磨损表面。在一个优选的应用中,一对末端安装的栓以相对的方式被布置在第一个第二骨骼之间,并分别限定一凸形容纳末端和一凹形骨臼。润滑剂保持和软骨限定的外层被应用到所述栓的一个或两个相对的表面。
Description
相关申请的交叉引用
本申请要求享有于2008年2月25日提交的美国临时申请61/031,192的权益。
技术领域
本发明总体上涉及与原有骨骼结构相关联的改进的关节组件。更具体地,本发明公开了一种人造耐磨栓(plug),该人造耐磨栓适于安装到至少一个原有的并且限定关节的骨骼的相对端面,并用来提供一种能够减少不适和恢复时间的改进的膝盖组件。
背景技术
现有技术中记载了通常是改进应用至原有关节的植入体装置和组件的实例。其中,已知植入体装置和组件的代表性实例包括:Philipp的美国专利申请公布文献No.2008/0195216中阐释的植入体装置及制造方法,该公布文献教导了一种带有第一和第二部件表面的膝盖植入体。Hodorek的美国专利No.7,291,169教导一种软骨植入体,其用于替换与骨骼关节相邻的软骨的一部分。
关节假体的其他实例包括Buscheer的美国2008/0071381中记载的植入体,该文献教导了一种通过烧结形成的带有微粗糙承载表面的植入体关节。Scott的2008/0114459公开了一种植入骨骼内的假体,该假体包括壳和内部匹配的衬垫。
发明内容
本发明公开了一种人造耐磨栓,其被安装至与关节结构相关联的原有骨骼,并且包括三维复合塑性材料。原有骨骼的一末端表面被修复,以准备用于所述栓的接合,并且为了限定一被修复的人造磨损表面。在一个优选的应用中,一对安装在末端的栓以相对的方式被安装在第一和第二骨骼之间,并且分别地限定凸形容纳末端和凹形骨臼(socket)。润滑剂保持和软骨限定的外层被应用至所述栓的相对表面中的一个或两个。
其他特征包括多个润滑剂连通通道,这些通道与所述栓和润滑剂连通层中的至少一个相关联。聚合体***栓还呈现出一整体限定且内部延伸的根结构,以用于被紧固到所述骨骼的一匹配且相关联的内部加工表面。采用注入的膨胀塑料以填充在所述栓的根结构和骨骼空心凹陷之间形成的腔。
在至少一种所述塑性材料表面接合至一相关联的骨骼末端表面之前,根据特定的形状并且在与一相对骨骼共同作用的位置处,所述关节形成且相对的植入体栓通过对所述相关联的骨骼末端表面进行切割、开槽或研磨表面重修来被紧固。表面附着材料还可包括夹子部分,所述夹子部分经由反向面延伸的紧固件被紧固到骨骼末端表面,所述紧固件安置在与所述骨骼末端相关联的内部加工的钻孔之内。
在一种变体中,塑性***材料可包括小型化的、柔性的且深度方向有孔的磨损盘,该磨损盘以局部内部放置的方式被置于与第一和第二关节形成骨骼表面相关联的选定共同作用表面之间,该柔性磨损盘进一步由软缓冲塑料构造。复合塑性材料还可以包括大体拱顶石形状的***物,该***物被配置为与选定的关节端面位置局部接合。
所述***物还可以呈现下部粗糙表面,以便在该***物安装到骨骼的加工端面后与骨髓接触,从而促进新骨骼的粘附力。复合塑料材料也可以包含带有凹陷安装栓钉(stub)的塑料***物,这些栓钉紧固在与骨骼相关联的第一和第二磨损关节表面位置。
其他的变体包括在凸形突出/延伸末端紧固的植入体和凹形/杯形容纳末端紧固的植入体之间形成的一完整的或部分的关节。凸形和凹形限定的末端被配置为模仿对应于诸如膝关节以及在其他应用中对应于诸如肘关节和髋关节的表面的正常相互作用。
除了凸形/凹形构型的末端,所述组件也可以包括相互连接/转换的杆(stem)部分,这些部分在第一末端连接到凸形或凹形植入体的后部表面。所述杆部分是内部中空的,带有一开放的连通末端,并被配置为安置在被切割(sectioned)的骨骼末端的中空内部之内。表面区域增加部分,例如不同类型的带键(keyed)部分,被配置在所述杆部分的开放内部表面上,这些部分促进了自然骨骼生长和粘附力的增加。
附图说明
现在将参考附图来结合下面的详细描述进行阅读,其中相同的参考数字在各个视图中表示相同的部件,其中:
图1是带有第一和第二原有骨骼的选定关节组件的分解图,并且所述第一和第二原有骨骼已经被改进设计为在第一骨骼容纳/球状位置和第二骨臼位置之内都包含一末端支撑的耐磨栓,以及提供了与每个栓或相对限定关节表面相关联的最外部且相对的软骨润滑剂表面;
图2是示出第一末端栓构造的剖视图解说明,并且例如与图1中的上方骨骼相关联且包括带有凹形相关联的***栓的软骨限定的表面层的整体成形;
图3是示出第二末端栓构造的剖视图解说明,并且例如与图1中的下方骨骼相关联且包括带有凸形相关联的***栓的软骨限定表面层的整体成形;
图4是一选定栓布置的改进末端剖面图,并说明了例如表面限定的格栅形样式,其用以使润滑剂连通到外部限定且相关联的软骨润滑剂表面;
图5是又一类型的栓形状的可附着植入体的平面图,该植入体用于改进到原有末端准备骨骼的附着;
图6是图5中示出的栓形状植入体的图解说明;
图7是类似于图5的、第一和第二耐磨栓的又一实施例的图解说明,该第一和第二耐磨栓通过凹处钻孔的安装件被紧固到选定骨骼的突出末端位置;
图8是图7中示出的选定耐磨栓放大的图解说明;
图9是沿图7中的线9-9所取的剖面图,并示出格栅形样式的构型,其用于将来自栓(例如通过内部储存器)的润滑流体连通至外部应用的软骨层;
图10是容纳和骨臼组件的又一构型的分解图;
图11是关节组件的另一改进构型的分解图,并且通过该关节组件,较小尺寸磨损栓部件的最少表面重修以及随后附着至诸如接触骨骼位置为原有骨骼结构提供了延长的寿命;
图12是类似于图11的替代构型的分解图,末端栓以塑性填充形物件的形式提供,借助于凹处钻孔和相关联的从物件整体伸展的下侧紧固件,所述塑性填充形物件被紧固到与每个骨骼相关联的共同作用的位置;
图13是成关节限定关系的第一和第二骨骼的替代构型的图解说明,并进一步示出小型化的、柔性的且深度方向有孔的磨损盘,该磨损盘以局部内部放置的方式被置于选定的与骨骼相关联的共同作用的表面之间;
图14是图13中示出的柔性磨损盘的平面图;
图15是沿图14中的线15-15所取的剖面图;
图16是图13中磨损盘的放大剖视立体图,并且更好地说明了用以获得最优润滑剂流体循环的深度方向配置的孔;
图17是从图16中所取的线性薄片,并示出限定在柔性磨损盘中的孔的间隔布置;
图18是根据另一个实施方案的选定骨骼的剖面图,并且大体拱顶石(keystone)形状的***物被配置为与选定的关节端面位置局部接合;
图19是图18中的复合软塑料拱顶石形***物的剖视图,并且更好地说明用来促进新骨骼粘附力的下部粗糙(或不规则成形)表面的特征;
图20是图18中示出骨骼的端视图,该骨骼带有塑料拱顶石形***物;
图21是一对带有凹陷安装栓钉的间隔配置的塑料***物的图解说明,这些栓钉紧固在与一改进的自然骨骼相关联的第一和第二磨损关节表面的位置;
图22是全部关节植入体组件的立体图解说明,该全部关节植入体组件在凸形突出/延伸和凹形/杯形容纳末端紧固的植入体之间形成,且带有被配置为模仿对应于诸如膝关节表面的正常相互作用的凸形和凹形限定末端;
图23是图22中关节植入体组件的分解图,并且除了相互连接/转换的杆部分,还示出了一选定凸形***物部分的后粘附紧固表面,这些杆部分在第一末端连接到凸形或凹形植入体的后表面,所述杆部分是内部中空的,且带有一开放的连通末端,该连通末端被配置为安置在切开的骨骼末端的中空内部之内;
图24是凹形植入体和附着杆部分的旋转端视图,所述杆部分是内部中空的,且带有一开放的连通末端,该连通末端被配置为安置在切开的骨骼末端的中空内部之内,所述杆部分的开放内部还呈现出多个表面区域增加部分,例如由各种类型的键控部分所示出的,这些键控部分被配置在所述杆部分的开放内部表面上,来促进自然骨骼的生长和粘附力的增加;
图25是图24中示出的杆部分的相互连接的内部表面的展开平面图,并更好地说明不同类型的键控部分的变化构型;
图26是根据又一优选实施方案的与部分关节组件相关联的凸形部分的立体图解说明;
图27是图26的又一旋转立体图,并示出了带螺纹的安装轴,该安装轴与表面紧固的植入体盖相关联以粘附地接合至组合的基底和杆支撑部分;
图28是图26和图27中示出的凸形植入体支撑盖的又一旋转立体图;
图29是图28中示出的部分植入体末端盖的另一向下旋转的立体图;
图30是与部分关节组件相关联的凹形植入体盖部分的立体说明,其例如可以与全部或部分凸形植入体组件一起配合地形成;
图31是图30中凹形植入体组件的旋转立体图,并进一步示出了类似的带螺纹的安装轴,该安装轴用以粘附地接合至限定凹形(或容纳)关节的组合基底和杆支撑部分位置的凹陷;
图32是图31中凹形部分植入体盖的又一立体图;以及
图33是凹形部分植入体盖的另一面向下的立体图。
具体实施方案
现参考图1,示出根据第一实施方案的改进的关节组件分解图,该关节组件修复和修补与自然骨骼相关联的磨损关节。具体而言,本发明公开相关联的物件、组件和方法,用于例如发生在患者体内并使用精细的医用钻和相关工具,修复第一和第二骨骼的磨损末端以及在安装假体关节植入体之前,该假体关节植入体比之前已知的植入体设计的创伤小得多,并且在患者舒适度和磨损期限上提供很大的改进。
如图1中示出的,图解说明了第一原有骨骼10和第二原有骨骼12,这些骨骼通常包括自然骨骼,但是也预想包括人工植入体。骨骼10和12总体上被配置成诸如与膝关节或髋关节相关联的凸形(球状)和凹形(容纳)结构。
如进一步示出的,每个骨骼10和12的相对的限定关节的末端已经被改进设计为包含相关联的并且由末端支撑的耐磨栓,分别参见14和16,这些耐磨栓以安装方式示出,分别安装在第一骨骼容纳/球状(receiver/ball)部分18(与骨骼12相关联)内和第二骨臼(bone socket)位置20(与骨骼14相关联)内。如所示出的,栓14和16每个都包括一面向前的边缘表面,该边缘表面在结构上与限定凸形或凹形关节的骨骼的外形相似(见凹形栓14的凹面轮廓15和凸形栓16的凸面轮廓17)。应进一步理解,为了增强栓的磨损期限和其他特性,栓14和16由众多不同材料中的任一种构造,例如包括复合塑料和/或含金属、陶瓷或硅质成分的塑料。
尽管未示出,应理解的是,可以使用合适的医用钻,例如在修复原有关节的情况下同样地在患者体内,这种钻包括精细的钻头和用于产生期望的下切样式(参见随后对标记26和28的说明和描述)的类似物,以容纳和紧固(例如以机械或粘附安装的方式)后部配置的安装表面(分别参见19和21)并对应于安装的***栓14和16。
图1中还示出最外部的且相对的类似软骨的覆盖物或润滑剂表面的设置,参见应用至凸形骨骼12的球部分18的22以及还有应用至凹形骨骼10的凹形容纳部分20的24。软骨/润滑剂诱导表面22和24通常以附着方式沿与关节表面相关联的光滑凹面/凸面安装,例如作为在骨骼末端表面修复后的后续步骤和栓形***物14和16的后续安装。如图2和图3中示出的,还设想栓14和16以及相关联的软骨/润滑剂限定表面可以按照整体成形的方式提供,并在单个安装手术中附接在先修复的骨骼的末端。
如所描述的,润滑剂表面22和24也意在模仿/复制已知的软骨表面,并不限于透明软骨;所述透明软骨是硬质的、富含骨胶原和蛋白多糖的半透明材料,除了其他已知的目的,覆盖骨骼的末端以形成光滑的关节表面。同样已知的是,根据被称作软骨内骨化的过程,骨骼通过透明软骨中间体生长。其他已知的关节材料,例如韧带和类似物,并没有通过这些视图说明,然而,应理解,为了形成期望的关节环境,会在需要的地方使用合适的自然和/或人工韧带。
在此公开的本发明的一些变体说明利用患者原有的但被损坏的骨骼的思想,所述骨骼在患者体内于原处由先进的机械加工/成形技术被改进修补,并且关联栓14和16紧固至所述骨骼,所述栓带有相关联的提供润滑剂的软骨表面22和24。骨骼的这种改进修补通常包括在相关联的关节形成部位内使每个相对且面向末端的区域成空心状(coring out),接着在先设计的形配合栓被固定在位,例如在凸形和凹形骨骼的位置,并以提供最大无摩擦磨损支撑的方式,同时提供最大程度的灵活性。
如在图2和图3中分别标记为14和16的栓同样地由任意类型的塑性、或改进的复合塑性材料构成,所述材料包括很宽范围内的聚合物的任一种,但并不限于尿烷、硅树脂、弹性体以及类似物。栓14和16每个都进一步示出了一大体根状的结构,这就是牙状结构,并且在对每个骨骼的内部去空心后,例如参见与骨骼10相关联的向内成形表面26以及与骨骼12相关联的额外凹陷表面28,这些栓通过例如紧固件、粘附物或类似物的应用而匹配地安装到位,从而修复并重新形成骨骼10和12的面向外部的关节限定表面。
还设想所述栓可以被应用至图1示出的凸形和凹形骨骼位置中的其中之一或同时应用至这两个位置。被应用至栓14和16的外部的润滑剂诱导软骨表面(再次参见22和24)进一步被理解为将源自栓(或者诸如源自位于远处或内部的储存器)的自然或人造/人造合成润滑剂连通至软骨层的相对表面。另外,尽管未示出,也应理解可使用韧带和其他连接结构,例如包括自然存在的韧带结构以及其他合成韧带的可能性植入,该合成韧带包括例如与其他合成材料一起使用的强化石墨,从而完成期望的关节结构。
如图4中进一步示出的,软骨/润滑剂限定表面的代表性图示是这样实现的:诸如通过提供用于将润滑剂连通至外部限定且相关联的软骨润滑剂表面的表面限定的格栅形样式30,参见例如与栓16相关联的润滑剂表面22(为简化说明仅呈现局部剖视图)。格栅形样式30(也可被包含在每个栓中)用来将润滑剂(例如,除了人造润滑剂,也可包括在单独的自然骨骼结构内自然产生的润滑剂)从相关联的栓(例如,14和16)连通进入软骨限定的润滑层22和24的后部连通面。
还预期的是,多个润滑剂连通通道可以与栓和复合模制(over-molded)的润滑剂连通层中的其中之一或二者相关联。除了公开的格栅形样式30,其他流体连通样式或轨迹(track)也将参考随后的实施方案来描述,并且有助于在关节限定表面之间形成基本无摩擦以及润滑剂支撑的结构。
现参考图5,示出了另一类型的栓形的可附着植入体32(也可参见图6中栓32的分开图示)的平面图,该植入体32用以改进附着至原有的末端准备好的骨骼34。如前所述,在栓植入体32附着之前,根据期望的医疗程序,骨骼34损坏的关节形成末端通过利用精细的钻和碾磨工具被修复(并且通常在相关联的骨骼保持在原位或患者体内的同时)。
在与骨骼端面相关联的期望的修复安装表面形成后,例如在植入体32在准备好的骨骼端面(参见图5中的36)上方预定位后,膨胀塑料38(例如具有高粘附性能的两部分反应的塑料)可以部分地填充至在空心骨骼内部和栓32最后面的基座(或根部支撑)部分40之间形成的剩余空隙。如图5中示出的,注射器42和针头能够被用于穿透例如与骨骼34相关联的预钻孔或其他允许进入的位置,并且用于(重新)填充所述空隙,例如结合应用到与骨骼34的修复末端相关联的其他接合表面(参见44和46)的加固材料,所述修复末端靠着栓32的内部基座表面45和47(再次参见图6),并结合地填充加工/空心的骨骼34的内部直径,并且永久地把栓32固定到骨骼的修复末端。悬置塑料润滑材料48(软骨层的等同物)被紧固到栓植入体32的面向外部的表面,从而在植入体和相对的骨骼关节(带有或没有末端栓)之间形成期望的大体润滑/无摩擦的关系。
现参考图7,示出与之前图5中示出的形状类似的骨骼的剖面图,并呈现了第一局部耐磨栓50和第二局部耐磨栓52的又一个实施例,该第一局部耐磨栓和第二局部耐磨栓通过例如凹处钻孔或凿孔安装(参见内部成空心的末端表面54和56)被紧固接近于与选定(例如,通常是原有的)骨骼58相关联的一对突出的末端位置。一个选定的栓50再次以放大的方式在图8中示出,并且栓50和52每个都同样包括润滑末端表面,分别参见用于栓50、52的60、62,并且可以同样地也包括例如具有期望的润滑特性的软塑料。
栓50和52每个都进一步地由选定的塑性或复合材料构成,例如所述塑性或复合材料被配置为不同于之前公开的图1和5中任何的栓的设计。在图8中,栓50同样也可以包括一下切的面向内部以及周缘限定的环状表面64,这有助于以匹配和端部支撑的方式相对于在原有骨骼58中限定的向内凹陷的空心开口安置所述栓,并且通过与对应于栓50安装位置的修复骨骼末端位置相关联的容纳表面65和67来进一步在图7中说明,所述表面65和67与骨骼内又一个凹陷钻孔表面54连通,以产生期望的腔轮廓,从而匹配地安置和接合所述复合植入体等同构造的部分。如在前面的实施方案中所描述的,栓50和52能够被单一地或前后地安装,从而提供对骨骼58和相对骨骼(未示出)之间形成的关节区域的修复。
图9是沿图7的线9-9所取的剖视图,并分别示出了其他格栅形样式66和68的结构,所述格栅形样式与栓50和52中的每个相关联,这些同样将来自栓(例如,也是通过内部储存器)的润滑流体连通至外部应用的软塑料/软骨层60和62。如之前所公开的,示出的多个轨迹/样式或通道66和68有助于等同地分布流经栓区域的润滑剂流体以及覆盖的软骨润滑剂,这也是通过润滑剂的连通来实现的,所述润滑剂经过一与软润滑剂/软骨限定层相关联的流体可渗透基质,并且帮助保持期望的无摩擦关节环境。
图10是容纳部70和骨臼72结合结构的又一构型的分解图。具体而言,图10的构型预期在相关联的软骨限定层74和76安装之前,对原有骨骼进行最小量的改进,以形成期望的基本无摩擦的关节环境,这在例如没有要求三维安装的植入体以及带有预先要求的切开与骨骼70和72中每一个相关联的关节限定端面的情况下发生。
现参考图11,示出了关节组件的又一个改进构型的分解图,其中对骨骼82和84关节暴露的末端的表面进行最小量的重修,以用于随后较小(例如,弧形或月牙形)尺寸的磨损栓部件的附着,参见用于骨骼82的78&80,以及用于骨骼84的86&88。磨损栓部件被紧固到例如最小化表面重修/凹陷的接触骨骼位置,这些进一步通过修复的凹陷末端表面位置90&92(对于骨骼82来说)以及94&96(对于骨骼88来说)来图解说明,从而为原有关节限定的骨骼结构提供延长的寿命,并且没有被损坏到必须使用如在各种在前实施方案中描述的极端修复的程度。
较小的栓或小尺寸部件的安装可以通过切割或其他表面重修技术(例如,研磨)来制备骨骼末端表面来实现。还设想小的钻孔(关于末端附着的***栓部件86,参见98处)能够被形成在一相关联且预修复的安装位置(再次参见骨骼84处的94),并在选定的小尺寸植入体附着之前,例如同样在84处,能够进一步包括例如后部延伸安装紧固件。可以理解并想到的是,合适的粘合剂以及类似物能够用于将较小的***部件紧固在位。
图12是类似于图11的又一构型的分解图,末端栓100&102以及104&106每个都以塑性填充形物件的形式提供。小型化的假栓填料每个都呈现出位于下侧的夹子或紧固件,通常对于选定的栓100用108指代,这些从每个末端栓物件的后部安装表面整体地伸展,并在与每个骨骼相关联的同样凹陷加工并相互协作的位置内接合。如进一步在107和109示出的,相关联的修复骨骼端面包括最初的钻孔107,该钻孔带有又一凹陷且连通的下切109,这允许下侧配置的夹子/紧固件108的紧固和相抵抗的内部装配固定,并且能够同样与已知的医用粘合剂或类似物应用组合使用,或者分离使用。
参考图13,示出了成关节(例如,膝关节)限定关系的第一骨骼110和第二骨骼112的另一构型的示意图。进一步示出了小型化的、灵活的且深度方向有孔的磨损盘114,该盘例如由复合塑性耐磨材料构成,并以局部内部放置的方式置于选定的相互作用的表面之间,参见116和118,并与骨骼110和112相关联。图14是图13中示出的柔性磨损盘114的平面图,其可以由软缓冲塑料或类似物构成。
如进一步在图15中示出的,是一个沿图14中的线15-15所取的剖面图,磨损盘114进一步显示具有多个深度方向延伸的孔或通道124,这些孔或通道旨在穿过第一和第二相对的表面区域(侧面120和122)聚集和均匀分布润滑剂流体,以保持关节部位基本无摩擦的环境。图16进一步说明了表示图13中的磨损盘114的放大截面,且更好地示出了多个深度方向配置的孔124,这些孔用于获得沿软塑料盘114的两个表面的最佳的润滑剂流体循环。
图17是沿图16中的剖面线17-17所取的线性薄片,示出了在柔性磨损盘114中限定的孔124的间隔布置。孔124同样有助于提供侧面120和122之间增强的流体循环,使得盘114能够作为例如钛或其他金属植入体材料的合适的替代物。
现参考图18,示出了根据另一个实施方案选定的自然骨骼126的剖面图,并且大体拱顶石(keystone)形(横截面)或三维楔形复合***物128被配置为与选定的关节磨损端面位置局部接合。骨骼126在130呈现出内部骨髓以及软骨/润滑剂限定的末端表面132(同样可以是自然或人造软塑料)。
如进一步在图19的放大截面图和图20的端视图中示出的,图18中的复合软塑料拱顶石形***物128更好地示出了下部/内侧粗糙(或不规则成形)表面134的特征,为了改进一旦将***物128安装(例如在胶粘剂和类似物的帮助下)至由骨骼126的关节表面限定的之前拱顶石形加工凹陷135后新骨骼的粘附性,进一步使得粗糙内部表面134暴露于骨髓130。***物128还呈现了外部塑料表面136,该表面与软骨限定表面132配合并由任一相同或相似的软骨和润滑剂改进表面组成。
图20进一步示出了图18中骨骼126的端视图,其中为了展现拱顶石形***物128的端面,润滑剂表面132的一部分已被除去。图20中还示出了限定在***物128的暴露端面中的网格样式133,该网格样式与润滑剂表面层132连通,从而有助于润滑剂在关节区的分散。
图21图解说明了一对间隔配置的塑料***物,参见138和140,用于紧固至与带有内部骨髓144的骨骼142相关联的突出端面的位置。***物138和140每个都包括面向内的凹陷安装栓钉(stud),参见与第一***物138相关联的一对146和148,以及与第二***物140相关联的又一个单个栓钉150(这些类似于图11和12中示出的类似配置的夹子/紧固件)。***物138和140每个都进一步由硬化塑料(例如,复合)材料构成,并且类似于所述拱顶石形或楔形***,呈现出合适的外部面。***物138和140固定地紧固至与骨骼142相关联的修复端面位置,例如通过面向内的栓钉的接合,所述栓钉在相关联的加工的内部腔(包括倒凹形成的腔)内紧固,所述腔在骨骼142的端面中形成,所述栓钉和所述***物相邻的面向内部的表面按照压合或合适的粘附或二者皆有的方式紧固至所述骨骼。
现参考图22和23,在152处大体示出了全关节植入体组件的组装和分解立体图,例如在凸形突出/延伸末端紧固的植入体154和凹形/杯形容纳末端紧固的植入体156之间形成。在所示出的变体中,所述关节组件对应于膝盖组件,应理解,所述组件可以为髋关节或其他任意关节重新配置。
三维形状的凸形和凹形植入体部分154和156同样由任何合适的材料构成,例如但并不仅限于复合塑料,凸形和凹形限定的末端被配置为模仿对应于例如膝关节表面的正常相互作用。凸形植入体154包括第一和第二大体“球”形的部分158和160,这些部分安置在匹配的凹陷的杯或窝,参见162和164,所述两部分被配置在凹形植入体部分156的相对安置的表面之内,这种构型有助于在使用韧带与其他位置保持结构(未示出)的情况下防止与凸形和凹形关节分部的分离。
植入体154和156被紧固到一对骨骼168和170的修复末端,这进一步在图23中参考与下方骨骼170相关联的修复末端172,以用于支撑凹形容纳植入体156。174和176处的一对杆(stem)支撑部分在图23中以分解的方式示出,这些部分紧固到凸形154和凹形156关节限定植入体的后部伸展部分,并顺序安置在所述骨骼的中空内部之内,具体参见图23中修复骨骼170的中空末端以及图22中的安装布置,其中杆支撑部分174和176隐藏在骨骼168和170之内。杆部分174和176通常由复合材料构成,类似于与凸形和凹形关节限定植入体相关联的材料,并包括成角度的杆部分,其被设定尺寸以安置在原有修复(末端重新切片)骨骼的原有带孔内部。
由与凸形植入体154相关联的杆174最佳表示的杆支撑部分包括伪锥形和多边形/矩形安装末端,参见178,该支撑部分安置在选定植入体154的凹陷配置的后表面之内。如图23最佳示出的,凸形植入体154的后侧包括一个匹配的并向内凹陷的锥形构型,参见侧壁180和带键端壁182,在该结构内固定地紧固杆安装末端178的匹配轮廓。
在184还示出与植入体154面向后的容纳腔相关联的中央支撑且向上突出的锚定(anchor)部分,该锚定部分安置在相同配置的凹陷内,该凹陷限定在杆安装末端178的相对内部(未示出)之内。如前所述,预期使用胶粘剂和类似物,从而能够有助于实现植入体、相关联的杆和原有骨骼之间的紧固结合。
辅助的结合可以通过所述骨骼的原有骨髓来提供(例如,参见图18和21),所述骨髓促进骨骼在凸形/凹形植入体上方生长以及沿着凸形/凹形植入体生长,包括所述植入体相关联的接合杆。图24是凹形植入体156和附着杆部分176的旋转端视图,并且杆部分176是内部中空的,带有一开放连通末端,并被配置未安置在切开的骨骼末端的中空内部之内。
如所示的,杆部分176的开放内部进一步呈现出多个表面面积增加的部分,例如由各种类型的带键部分178、180、182、184、186和188所示出的,这些带键部分被配置在杆的中空骨骼***部分的开放且相互连接的内表面之上,这些带键部分通过与原有骨髓接触促进自然骨骼的生长和粘附力的增加。图25是图24中示出的杆部分176的相互连接且连通的内部表面的展开平面图,并更好地说明了不同类型带键部分的变型,所述带键部分增加用于促进骨骼生长和粘附的可使用表面面积。
现在参考图26,示出了根据又一优选实施方案的与部分关节组件相关联的凸形部分的立体图,参见190。在这个变体中,基底部件192可包括凸形植入体主体和骨骼紧固杆的整体组合。限定凸形凸面部分的又一关节(参见193)可包括原有(基本未损坏的)骨骼表面或可被提供作为假体关节植入体的另一部分。
或者,所述杆可以被分立地安装至所述凸形植入体的基底部分。同样设想和应理解的是,除了骨骼紧固植入体之外,实际骨骼末端位置可以被修复,以呈现出多侧面且锥形的构型,如由六面体形和相互连接的侧面194、196、198等所示出的。
如进一步在图27的旋转图解中示出的,一个盖形附着物包括伪半球形(凸面形状)顶,从该半球形顶延伸出一带螺纹的内部螺杆部分202。所述半球形顶部的内部表面可以呈现出一多侧面的构型,该构型与在植入体192中设计的伪六边形匹配,螺杆部分202安置在孔204内,该孔204限定在基底植入体部件192的匹配位置。如前所述,可以使用粘合剂或类似物,以紧固地将帽附着物200结合至基底植入体192以及相关联的杆支撑部分。
图28和29示出了又一凸形植入体盖附着物的第一和第二旋转立体图,例如类似于在图26和图27中示出的。所述盖附着物呈现出一加固的构型,例如可包括提供固化和/或加强***件(参见208和210),所述***件被包含到所述盖附着物的内壁结构中。底部延伸***件也可以被移除,有利于凹陷槽口调整所述盖附着物的弯曲的性质,还应设想,所述部件的材料结构可以被改进,以呈现出不同的期望特性。还示出了额外的底部定位且向内/周向延伸的加强***物(参见212和214),这些加强***物被布置为靠近所述附着盖的底部延伸边缘216。同样示出了带螺纹的安装螺杆202,以便于所述盖安装至原有修复骨骼或基座支撑植入体部件,如图26所示。
参考图30和31,示出了又一改进的基底关节组件的其他立体图,参见218,在所述组件之上紧固一配置为凹形部分的植入体盖部分,参见220,该植入体盖部分与部分关节组件相关联,并且例如能够与全部或部分凸形植入体组件一同配合形成。所说明的修复和安装方面基本与在图26和27中示出的关于凸形安装布置相同,带有锥形六边形样式(侧面222、224、226等),该样式形成进入基座构件218的上表面,并与上表面限定的凹陷228一同,安置并固定地紧固凹形植入体盖部分220及其相关联的向下延伸的安装螺杆部分230。
凹形的盖形植入体220另外呈现出杯形顶部凹陷的构型222,该构型配合地安置与凸形盖附着物相关联的凸形形状(或类似配置的自然凸形骨骼关节接合表面)。同时,关于凸形的盖形植入体200,目前的变体允许凸形或凹形的盖形植入体220的更换,例如在给定的重复使用后,并且不要求紧固到原有修复骨骼的基座植入体部件的同时更换。
图31是图30中的凹形植入体组件的旋转立体图,同时又示出了类似的带螺纹的安装轴,以用于与限定凹形(或容纳部)关节的组合基底和杆支撑部分的位置的凹陷粘附接合。最后,图32和33是图31中的凹形局部植入体盖的又一立体图,所述盖还可以包括被包含在盖形***物220的顶部和基座周缘壁中的加强***物(参见234、236和238、240),从而调整所述盖附着物的材料和弯曲特性。
现已描述了本发明,在不背离所附权利要求书范围的情况下,其他附加的优选实施方案对于本发明所属领域内的技术人员将是明了的。
权利要求书(按照条约第19条的修改)
1.一种人造耐磨栓,其被包含进一修复关节结构中,包括:
三维复合塑性材料,其被安装在一修复位置上,该修复位置与由该关节结构的凸形末端呈现出的凸面轮廓和由该关节结构的基座凹面末端呈现出的凸面轮廓中的至少一个相关联;以及
润滑剂表面层,其沿关节限定的轮廓并在所述安装材料的上方延伸。
2.如权利要求1所述的本发明,所述关节结构包括限定凸形和凹形末端的第一和第二骨骼,所述三维材料呈现出外部修复表面。
4.如权利要求1所述的本发明,还包括多个润滑剂连通通道,所述通道在所述三维材料和所述润滑剂表面层的至少一个中形成。
5.如权利要求1所述的本发明,所述三维材料还包括一整体限定的根结构,以被紧固到所述修复骨骼位置的一匹配且相关联内部加工表面。
6.如权利要求5所述的本发明,还包括注入的膨胀塑料,以填充在所述根结构和所述骨骼之间形成的腔。
8.如权利要求1所述的本发明,还包括至少一个夹子部分,所述夹子部分从所述三维材料的反向面延伸,且被接合至限定在所述修复骨骼之内的下切凹陷位置。
9.如权利要求1所述的本发明,所述三维材料还包括小型化的且深度方向有孔的柔性磨损盘,该磨损盘以局部内部放置的方式被置于与所述凸形和凹形末端相关联的选定共同作用表面之间,所述柔性磨损盘由软缓冲塑料构造。
10.如权利要求1所述的本发明,所述三维材料还包括一大体拱顶石形状的***物,该***物被配置用于与所述修复位置局部接合。
11.如权利要求10所述的本发明,所述***物的反向面还包括粗糙表面,以便在所述***物安装进入与所述修复位置相关联的所述骨骼的加工端面并且与骨髓接触后,所述粗糙表面增进新骨骼的粘附力。
12.如权利要求1所述的本发明,所述三维材料还包括至少一个带有凹陷安装栓钉的塑料***物,所述栓钉紧固在与至少一个关节限定骨骼相关联的第一和第二磨损关节表面位置。
13.一种膝盖关节组件,包括:
凸形植入体,其被紧固到第一骨骼的预处理末端,并呈现包括第一和第二凸面形状部分的第一关节限定表面;
凹形复合植入体,其被紧固到第二骨骼的预处理末端,并呈现第二关节限定表面,该第二关节限定表面包括凹面容纳骨臼,用以将与所述凸形植入体相关联的所述凸面形状部分安置在所述凹面容纳骨臼上;
第一杆,其从所述凸形植入体的后面延伸,并固定在所述第一骨骼的内部;以及
第二杆,其从所述凹形植入体的后面延伸,并固定在所述第二骨骼的内部。
14.如权利要求13所述的组件,所述第一和第二杆中的每一个都还包括一定形的安装末端,该安装末端安置与在所述凸形和凹形植入体中的每一个相关联的凹陷配置的后表面之内。
15.如权利要求14所述的组件,所述凸形和凹形植入体的所述凹陷配置的后表面每个都还包括一匹配的并且向内凹陷的锥形构型,所述杆安装末端固定地紧固在该锥形构型之内。
16.如权利要求15所述的组件,还包括与所述后表面相关联的中央支撑且突出的锚定部分,所述锚定部分限定在所述凸形和凹形植入体中的每一个之内,一相同配置的凹陷被限定在与所述杆安装末端相关联的相对内部之内。
17.如权利要求16所述的组件,所述杆的内部还包括多个表面面积增加的带键部分,这些带键部分被配置为与中空的骨骼内部连通,并通过与原有骨骼骨髓的接触促进自然骨骼生长和增加粘附性的增加。
18.如权利要求13所述的组件,还包括至少一个盖形附着物,其限定所述凸形和凹形植入体中的至少一个的一部分表面面积,并被紧固至与所述凸形和凹形植入体中的至少一个相关联的位置。
19.如权利要求18所述的组件,所述至少一个盖形附着物还包括一延伸的带螺纹螺杆,该螺杆***到限定在所述植入体之内的匹配凹陷内。
20.如权利要求18所述的组件,还包括所述凸形和凹形植入体中的至少一个呈现出相互连接的侧面的样式,该样式被配置为容纳和紧固与至少一个所述凸形和凹形盖形附着物相关联的匹配底侧。
21.如权利要求18所述的组件,所述至少一个盖形附着物还包括复合塑性塑料。
22.如权利要求21所述的组件,还包括多个加强***物,这些加强***物被包含在与所述盖形附着物相关联的周缘延伸壁。
Claims (20)
1.一种人造耐磨栓,其被安装至与关节结构相关联的原有骨骼,包括:
三维复合塑性材料;以及
所述骨骼的末端表面,其被准备用于将所述栓接合在所述末端表面上,从而限定一修复的人造磨损表面。
2.如权利要求1所述的本发明,第一和第二骨骼限定凸形容纳末端和凹形骨臼末端,在至少一个栓被安装到相关联的骨骼上后,所述至少一个栓呈现出外部修复表面。
3.如权利要求2所述的本发明,还包括润滑剂保持和软骨限定的外层,其被应用到所述栓的表面。
4.如权利要求3所述的本发明,还包括多个润滑剂连通通道,所述通道与所述栓和所述润滑剂连通层中的至少一个相关联。
5.如权利要求2所述的本发明,所述栓呈现出特定的形状和尺寸,并且还包括一整体限定且内部延伸的根结构,以被紧固到所述骨骼的一匹配且相关联内部加工表面。
6.如权利要求5所述的本发明,还包括注入的膨胀塑料,以填充在所述栓的根结构和所述骨骼的空心凹陷之间形成的腔。
7.如权利要求1所述的本发明,还包括:在至少一种所述塑性材料表面接合至一相关联的骨骼末端表面之前,根据特定的形状并且在与一相对骨骼共同作用的位置处,对所述相关联的骨骼末端表面进行表面切割、开槽或研磨表面重修中的至少一种。
8.如权利要求7所述的本发明,所述表面附着材料还包括夹子部分,所述夹子部分通过反向面延伸紧固件被紧固至骨骼末端表面,所述紧固件安置在与所述骨骼末端相关联的内部加工钻孔之内。
9.如权利要求1所述的本发明,所述塑性材料还包括小型化的且深度方向有孔的柔性磨损盘,该磨损盘以局部内部放置的方式被置于与第一和第二关节形成骨骼表面相关联的选定共同作用表面之间,所述柔性磨损盘由软缓冲塑料构造。
10.如权利要求1所述的本发明,所述复合塑性材料还包括一大体拱顶石形状的***物,该***物被配置用于与选定关节端面位置局部接合。
11.如权利要求10所述的本发明,所述***物还包括下部粗糙表面,以便在所述***物安装进入所述骨骼的加工端面并且与骨髓接触后,增进新骨骼的粘附力。
12.如权利要求1所述的本发明,所述复合塑料材料还包括至少一个带有凹陷安装栓钉的塑料***物,所述栓钉紧固在与所述骨骼相关联的第一和第二磨损关节表面位置。
13.一种关节组件,包括:
凸形复合植入体,其适于被紧固到第一骨骼的预处理末端,并呈现第一关节限定表面;
凹形复合植入体,其适于被紧固到第二骨骼的预处理末端,并呈现第二关节限定表面;
第一杆,其紧固到所述凸形植入体的后侧,并固定在所述第一骨骼的内部;以及
第二杆,其紧固到所述凹形植入体的后侧,并固定在所述第二骨骼的内部。
14.如权利要求13所述的组件,所述杆中的每一个都还包括一定形的安装末端,该安装末端安置在所述凸形和凹形植入体的凹陷配置的后表面之内。
15.如权利要求14所述的组件,所述凸形和凹形植入体的后侧每个都还包括一匹配的并且向内凹陷的锥形构型,所述杆安装末端固定地紧固在该锥形构型之内。
16.如权利要求15所述的组件,还包括与面向后的容纳腔相关联的中央支撑且向上突出的锚定部分,所述锚定部分限定在所述凸形和凹形植入体中的每一个之内,一相同配置的凹陷被限定在与所述杆安装末端相关联的相对内部之内。
17.如权利要求16所述的组件,所述杆的开放可进入内部还包括多个表面面积增加的带键部分,这些带键部分被配置为与中空的骨骼内部连通,并通过与原有骨骼骨髓的接触促进自然骨骼生长和粘附性的增加。
18.如权利要求13所述的组件,还包括凸形的盖形附着物和凹形的盖形附着物中的至少一个,其被紧固至与所述凸形和凹形复合植入体中的至少一个相关联的位置。
19.如权利要求18所述的组件,所述至少一个盖形附着物还包括一带螺纹螺杆,该螺杆***到限定在所述复合植入体之内的匹配凹陷内。
20.如权利要求18所述的组件,所述凸形和凹形复合植入体中的至少一个还各包括配置在其上的六边形样式,用以容纳和紧固所述至少一个凸形和凹形的盖形附着物的匹配底侧。
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US9050193B2 (en) | 2015-06-09 |
US8702801B2 (en) | 2014-04-22 |
US20140228962A1 (en) | 2014-08-14 |
US20110035012A1 (en) | 2011-02-10 |
WO2009108960A4 (en) | 2010-01-14 |
WO2009108960A2 (en) | 2009-09-03 |
WO2009108960A3 (en) | 2009-11-26 |
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