CN114081687A - 一种组配式踝关节距骨侧假体 - Google Patents
一种组配式踝关节距骨侧假体 Download PDFInfo
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Abstract
本发明涉及骨科植入物技术领域,尤其涉及一种组配式踝关节距骨侧假体,解决了踝关节置换现有技术中的整体式距骨侧部件无法满足临床上踝关节距骨侧表面置换与骨缺损填充的双重目的问题。一种组配式踝关节距骨侧假体,包括距骨关节面假体,距骨关节面假体的下侧带有距骨关节面腔,腔内带有与螺钉式距骨阀杆相连接的螺纹;螺钉式距骨阀阀杆,螺钉式距骨阀杆包括螺杆部和多孔螺帽部;距骨垫片。螺钉式距骨阀杆通过螺杆部与距骨关节面腔内的螺纹旋合连接。本发明距骨关节面假体、螺钉式距骨阀杆、螺钉式距骨阀杆垫片、骨缺损匹配填充块均采用增材制造而成,通过多部件组合而成的结构,满足了临床上踝关节距骨侧表面置换与骨缺损填充的双重求。
Description
技术领域
本发明涉及骨科植入物技术领域,尤其涉及一种组配式踝关节距骨侧假体。
背景技术
距骨和胫骨远端、腓骨下端共同组成踝关节,分头颈体三部分,是人体负重最大的关节,距骨体部缺血、软骨损伤、骨折,以及肿瘤等病症均可造成踝关节病变,造成患者行走困难,甚至致残。
踝关节表面置换是重建踝关节结构和功能的主要诊疗方法之一,踝关节距骨侧病变往往存在关节表面病变和松质骨病变同时发生,现有技术中的踝关节面置换假体的距骨侧部件通常为单一的整体式假体部件,无法满足临床上踝关节距骨侧表面置换与骨缺损填充的双重目的。
发明内容
本发明的目的是提供一种组配式踝关节距骨侧假体,解决了现有技术中的踝关节面置换假体的距骨侧部件通常为单一的整体式假体部件,无法满足临床上踝关节距骨侧表面置换与骨缺损填充的双重目的的问题。
为了实现上述目的,本发明采用了如下技术方案:
一种组配式踝关节距骨侧假体,包括包括距骨关节面假体、螺钉式距骨阀杆、骨缺损匹配填充块、螺钉式距骨阀杆垫片。
优选的,距骨关节面假体的内侧带有距骨关节面腔,距骨关节面假体的关节面腔设有螺钉式距骨阀杆接口,且螺钉式距骨阀杆接口内部设有螺纹。
优选的,螺钉式距骨阀杆设有螺杆部和多孔螺帽部。
优选的,距骨关节面假体的关节面腔可设有骨缺损匹配填充块,骨缺损匹配填充块通体或表面为多孔结构。
优选的,螺钉式距骨阀杆垫片通体为多孔结构。
优选的,螺钉式距骨阀杆、骨缺损匹配填充块、螺钉式距骨阀杆垫片采用增材制造方式成形。
优选的,骨关节面假体可采用铸造、减材制造和增材制造成形,距骨关节面腔可采用喷砂、喷涂,或直接用增材制造加工成粗糙度较高的表面。
优选的,骨关节面假体通过螺钉式距骨阀杆接口与螺钉式距骨阀杆组配;组配过程中,根据骨缺损情况选用骨缺损匹配填充块、螺钉式距骨阀杆垫片。
本发明至少具备以下有益效果:
本发明距骨关节面假体可采用铸造、减材制造和增材制造成形;距骨关节面部位采用打磨、抛光加工而成;距骨关节面腔可采用喷砂、喷涂,或直接用增材制造加工成粗糙度较高的表面,螺钉式距骨阀杆接口为内螺纹结构,与螺钉式距骨阀杆螺纹连接,螺钉式距骨阀杆采用增材制造方式成形,并采用减材制造加工出内六方结构和螺纹结构,螺帽部分外部表面为多孔结构,螺钉式距骨阀杆垫片采用增材制造方式成形,通体或表面为多孔结构,骨缺损匹配填充块依据患者距骨松质骨缺损情况进行设计,采用增材制造方式成形,通体或表面为多孔结构,通过多部件组合而成的结构,满足了临床上踝关节距骨侧表面置换与骨缺损填充的双重求。
附图说明
为了更清楚地说明本发明实施例技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明的采用螺钉式距骨阀杆垫片结构图;
图2为本发明的采用骨缺损匹配填充块结构图;
图3为本发明的螺钉式距骨阀杆俯视结构图。
图中:10、距骨关节面假体;11、距骨关节面腔;12、螺纹;13、螺钉式距骨阀杆接口;20、螺钉式距骨阀杆;30、骨缺损匹配填充块;40、螺钉式距骨阀杆垫片。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
实施例一
参照图1-3,包括距骨关节面假体10、螺钉式距骨阀杆20、骨缺损匹配填充块30、螺钉式距骨阀杆垫片40,2.根据权利要求1的一种组配式踝关节距骨侧假体,其特征在于,距骨关节面假体10的内侧带有距骨关节面腔11,距骨关节面假体10的关节面腔11设有螺钉式距骨阀杆接口13,且螺钉式距骨阀杆接口13内部设有螺纹12,螺钉式距骨阀杆20设有螺杆部和多孔螺帽部,距骨关节面假体10的关节面腔11可设有骨缺损匹配填充块30,骨缺损匹配填充块30通体或表面为多孔结构,螺钉式距骨阀杆垫片40通体为多孔结构,螺钉式距骨阀杆20、骨缺损匹配填充块30、螺钉式距骨阀杆垫片40采用增材制造方式成形,骨关节面假体10可采用铸造、减材制造和增材制造成形,距骨关节面腔11可采用喷砂、喷涂,或直接用增材制造加工成粗糙度较高的表面,骨关节面假体10通过螺钉式距骨阀杆接口13与螺钉式距骨阀杆20组配;组配过程中,根据骨缺损情况选用骨缺损匹配填充块30、螺钉式距骨阀杆垫片40。
本发明距骨关节面假体10可采用铸造、减材制造和增材制造成形;骨关节面假体10采用打磨、抛光加工而成;距骨关节面腔11可采用喷砂、喷涂,或直接用增材制造加工成粗糙度较高的表面,螺钉式距骨阀杆20接口为内螺纹结构,与螺钉式距骨阀杆20螺纹连接,螺钉式距骨阀杆20采用增材制造方式成形,并采用减材制造加工出内六方结构和螺纹结构,螺帽部分外部表面为多孔结构,螺钉式距骨阀杆垫片40采用增材制造方式成形,通体或表面为多孔结构,骨缺损匹配填充块30依据患者距骨松质骨缺损情况进行设计,采用增材制造方式成形,通体或表面为多孔结构,通过多部件组合而成的结构,满足了临床上踝关节距骨侧表面置换与骨缺损填充的双重求
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是本发明的原理,在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明的范围内。本发明要求的保护范围由所附的权利要求书及其等同物界定。
Claims (8)
1.一种组配式踝关节距骨侧假体,包括距骨关节面假体(10)、螺钉式距骨阀杆(20)、骨缺损匹配填充块(30)、螺钉式距骨阀杆垫片(40)。
2.根据权利要求1所述的一种组配式踝关节距骨侧假体,其特征在于,所述距骨关节面假体(10)的内侧带有距骨关节面腔(11),所述距骨关节面假体(10)的关节面腔(11)设有螺钉式距骨阀杆接口(13),且螺钉式距骨阀杆接口(13)内部设有螺纹(12)。
3.根据权利要求1所述的一种组配式踝关节距骨侧假体,其特征在于,所述螺钉式距骨阀杆(20)设有螺杆部和多孔螺帽部。
4.根据权利要求1和2所述的一种组配式踝关节距骨侧假体,其特征在于,所述距骨关节面假体(10)的关节面腔(11)可设有骨缺损匹配填充块(30),骨缺损匹配填充块(30)通体或表面为多孔结构。
5.根据权利要求1和2所述的一种组配式踝关节距骨侧假体,其特征在于,所述螺钉式距骨阀杆垫片(40)通体为多孔结构。
6.根据权利要求1、3-5所述的一种组配式踝关节距骨侧假体,其特征在于,螺钉式距骨阀杆(20)、骨缺损匹配填充块(30)、螺钉式距骨阀杆垫片(40)采用增材制造方式成形。
7.根据权利要求1、2所述的一种组配式踝关节距骨侧假体,其特征在于,骨关节面假体(10)可采用铸造、减材制造和增材制造成形,所述距骨关节面腔(11)可采用喷砂、喷涂,或直接用增材制造加工成粗糙度较高的表面。
8.根据权利要求1-5所述的一种组配式踝关节距骨侧假体,其特征在于,骨关节面假体(10)通过螺钉式距骨阀杆接口(13)与螺钉式距骨阀杆(20)组配;组配过程中,根据骨缺损情况选用骨缺损匹配填充块(30)、螺钉式距骨阀杆垫片(40)。
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