CN106470643A - 带有多孔的背侧的套面的全陶瓷的髋关节臼 - Google Patents

带有多孔的背侧的套面的全陶瓷的髋关节臼 Download PDF

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CN106470643A
CN106470643A CN201580037259.6A CN201580037259A CN106470643A CN 106470643 A CN106470643 A CN 106470643A CN 201580037259 A CN201580037259 A CN 201580037259A CN 106470643 A CN106470643 A CN 106470643A
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porous
set face
sintering
hip
bone
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R.普罗伊斯
M.拉施克
P.施特勒特根
T.魏斯
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Ceramtec GmbH
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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
    • A61F2/02—Prostheses implantable into the body
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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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    • 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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    • 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
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
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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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Abstract

本发明涉及用于髋关节假体的髋关节臼（1），带有内部的空腔（2）和背侧的面向骨骼的套面（3）。为了能够无粘固剂地植入所述髋关节臼（1）提出，所述套面（3）至少在部分区域中构造成多孔的和骨能够结合的并且所述髋关节臼（1）仅仅由陶瓷的材料制成。

Description

带有多孔的背侧的套面的全陶瓷的髋关节臼
技术领域
本发明涉及用于髋关节假体的髋关节臼，所述髋关节臼具有内部的空腔和背侧的面向骨骼的套面。
背景技术
当前的临床的现有技术为仅仅与金属的部件组合的内假体的髋关节臼规定陶瓷的滑动面（模块化的系统）。所述金属的部件（髋关节臼）常常设有同样金属的骨能够结合的涂层，所述涂层实现骨骼直接长入到植入物表面中。陶瓷的部件（代替物）反之保证滑动配对的小的磨损。
所述模块化的系统的缺点是整个系统在骨骼切除术方面的相对大的壁厚度以及由于将陶瓷嵌件倾斜地（verkipptes）嵌入到金属臼中所引起的应用缺陷，这会导致陶瓷破裂。
所述模块化的系统的壁厚度的减少通过所述髋关节臼在打入（Einschlagen）时的出现的变形来限制，其后果是会使得嵌入所述陶瓷部件变得困难或完全不可能。
除了应用上面提到的带有陶瓷的滑动面的、在臼侧模块化的髋关节内假体之外在市面上附加地存在有不同的带有金属的滑动面的能够直接植入的、金属的、整块的臼解决方案（包括骨能够结合的涂层在内），其以省去骨骼的手术为目的。
发明内容
能够直接植入的带有集成的多孔的骨能够结合的背侧的套面的全陶瓷的髋关节臼的应用呈现为有利的创新。
这样的无金属的髋关节臼将省去骨骼的手术的优点与生物兼容的材料的、滑动配对的小的磨损的和突出的骨能够结合性的优点统一。
根据本发明的用于髋关节假体的髋关节臼（带有内部的空腔和背侧的面向骨骼的套面）的特征在于，所述套面至少在部分区域中构造成多孔的和骨能够结合的并且所述髋关节臼仅仅由陶瓷的材料制成。
根据本发明的用于制造所述髋关节臼的多孔的骨能够结合的套面的方法的特征在于，所述髋关节臼由烧结模制体制成并且将多孔的骨能够结合的覆层施加到所述套面上至少部分区域中。
在所述方法的一种根据本发明的实施方案中，所述多孔的套面通过在生坯状态中施加陶瓷的浆料以及占位件（Platzhaltern）（孔形成器（Porenbildner））以及在烧结时烧尽所述占位件来制成。优选地，所述多孔的覆层能够通过浆料在生坯状态中的起泡以及接下来的烧结来产生。通过烧结过程实现与所述套面的结合并且产生具有裂缝的表面的开孔的结构，其有利地支持所述骨骼的生长和长入。这种结合所述陶瓷的髋关节臼的涂层的类型是同样无金属的并且由此关于过敏反应是有利的。
所述陶瓷的浆料由与所述髋关节臼相同的材料制成。全部的髋关节臼由此包括涂层在内全部地没有金属并且关于过敏反应是有利的。
所述多孔的套面也能够通过在烧结的状态中将密实的模制体与多孔的模制体接合来产生。所述多孔的模制体能够通过陶瓷的浆料的起泡以及烧结产生或者通过将多孔的基底材料渗入有浆料并且烧结来产生。所述接合优选地通过焊接或粘结实施。
所述多孔的骨能够结合的套面根据本发明还能够通过双色注塑（密实的阶段和多孔的或形成孔的阶段）以及烧结来制成。
所述多孔的套面能够优选地通过另外的涂层来获得附加的功能性、如更高的结合速度或抗菌的作用。结合速度被理解成以所述骨骼来长入的时间。优选地，这能够利用生物玻璃、羟基磷灰石、功能蛋白或水凝胶来实现。
根据本发明的髋关节臼完全由陶瓷制成并且能够通过多孔的套面来直接植入。所述骨骼快速地长入到所述多孔的套面中，从而在所述手术之后不久已经保证有固定的配合（Sitz）。在所述植入时不使用骨骼粘固剂。
附图说明
图1示出髋关节臼1，带有内部的空腔2和背侧的面向骨骼的套面3。根据本发明，所述套面3至少在部分区域中构造成多孔的和骨能够结合的。所述髋关节臼1仅仅由陶瓷或由陶瓷的材料制成。

Claims (10)

1.用于髋关节假体的髋关节臼（1），所述髋关节臼具有内部的空腔（2）和背侧的面向骨骼的套面（3），其特征在于，所述套面（3）至少在部分区域中构造成多孔的并且骨能够结合的并且所述髋关节臼（1）仅仅由陶瓷的材料制成。
2.用于制造根据权利要求1所述的髋关节臼（1）的多孔的骨能够结合的套面（3）的方法，其特征在于，所述髋关节臼（1）由烧结模制体制成并且将多孔的骨能够结合的覆层施加到所述套面上至少部分区域中。
3.根据权利要求2所述的方法，其特征在于，所述多孔的套面（3）通过在生坯状态中施加陶瓷的浆料以及占位件（孔形成器）以及在烧结时烧尽所述占位件来制成。
4.根据权利要求2所述的方法，其特征在于，所述多孔的套面（3）通过陶瓷的浆料在生坯状态中的起泡以及接下来的烧结制成。
5.根据权利要求2所述的方法，其特征在于，所述多孔的套面（3）通过在烧结的状态中将密实的模制体与多孔的陶瓷的模制体接合来制成。
6.根据权利要求5所述的方法，其特征在于，所述多孔的模制体通过陶瓷的浆料的起泡以及烧结制成或者通过将多孔的基底材料渗入有浆料并且烧结制成。
7.根据权利要求5或6所述的方法，其特征在于，所述接合通过焊接或粘结实施。
8.根据权利要求2所述的方法，其特征在于，所述多孔的套面通过双色注塑（密实的阶段和多孔的或形成孔的阶段）以及烧结来制成。
9.根据权利要求2至8中任一项所述的方法，其特征在于，所述多孔的套面（3）通过另外的涂层来获得附加的功能性、如更高的结合速度或抗菌的作用。
10.根据权利要求9所述的方法，其特征在于，多孔的背侧面（4）以生物玻璃、羟基磷灰石、功能蛋白或水凝胶来涂层。
CN201580037259.6A 2014-07-09 2015-07-01 带有多孔的背侧的套面的全陶瓷的髋关节臼 Pending CN106470643A (zh)

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DE102014213362.9 2014-07-09
DE102014213362 2014-07-09
PCT/EP2015/064928 WO2016005238A1 (de) 2014-07-09 2015-07-01 Vollkeramische hüftgelenkspfanne mit poröser rückseiter mantelfläche

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JP2017521161A (ja) 2017-08-03
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EP3166538B1 (de) 2019-03-27
AU2015286971A1 (en) 2017-02-16
DE102015212263A1 (de) 2016-01-28
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US20170239055A1 (en) 2017-08-24
KR20170031167A (ko) 2017-03-20

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