WO2017020148A1 - 一种人工髋关节臼杯 - Google Patents

一种人工髋关节臼杯 Download PDF

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Publication number
WO2017020148A1
WO2017020148A1 PCT/CN2015/000730 CN2015000730W WO2017020148A1 WO 2017020148 A1 WO2017020148 A1 WO 2017020148A1 CN 2015000730 W CN2015000730 W CN 2015000730W WO 2017020148 A1 WO2017020148 A1 WO 2017020148A1
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WO
WIPO (PCT)
Prior art keywords
liner
cup
inner layer
lining
artificial hip
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PCT/CN2015/000730
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English (en)
French (fr)
Inventor
朱健
徐龙伟
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江苏奥康尼医疗科技发展有限公司
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Application filed by 江苏奥康尼医疗科技发展有限公司 filed Critical 江苏奥康尼医疗科技发展有限公司
Publication of WO2017020148A1 publication Critical patent/WO2017020148A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • 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
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups

Definitions

  • the present invention relates to a medical rehabilitation device, and more particularly to an artificial hip joint cup.
  • an object of the present invention to provide an artificial hip joint cup.
  • An artificial hip joint cup having a concave semi-arc shape including an outer layer, an inner layer, a cup liner and a liner outer casing, wherein the outer layer is fixed integrally with the inner layer a lining outer jacket enclosing the cuff cup lining, the outer side of the inner lining outer casing being in surface engagement with the inner layer, the inner side of the inner lining outer casing matching the cuff cup lining;
  • the lining jacket is composed of polyetheretherketone or a derivative thereof.
  • cup liner is a hard liner.
  • the hard liner is a ceramic liner or a metal liner.
  • the inner layer surface is a standard spherical structure, and the inner layer forms a sliding friction surface with the inner liner and the cup liner.
  • the inner layer surface is a non-standard spherical structure, and the inner layer forms a group fixing structure with the inner liner and the cup inner liner.
  • the inner layer of the structure provided by the present invention is bonded to the cup liner by the inner liner of polyetheretherketone (PEEK) or its derivative, which reduces stress concentration and appropriately increases the rigidity of the cup.
  • PEEK polyetheretherketone
  • the lining of the cup is wrapped by the inner liner of the PEEK or the derivative and then combined with the inner layer, which can meet the matching requirements of the hard lining and the matching requirements of the soft lining.
  • FIG. 1 is a schematic structural view of an embodiment of an artificial hip joint cup provided by the present invention.
  • the artificial hip joint cup has a concave semi-circular shape, including an outer layer 1, an inner layer 2, and a cup lining. 3 and a lining outer sleeve 4, wherein the outer layer 1 and the inner layer 2 are fixed in an integral structure; the inner lining outer sleeve 4 wraps the enamel lining 3, the outer side of the inner lining outer sleeve 4 is surface-locked with the inner layer 2, and the inner lining 4 is lining
  • the inner side is matched to the cup liner 3; the inner liner 4 is composed of polyetheretherketone (PEEK) or a derivative thereof.
  • PEEK polyetheretherketone
  • the cup liner 3 is a hard liner; the hard liner is preferably a ceramic liner.
  • the inner layer 2 has a non-standard spherical structure, and the inner layer 2 and the inner liner 4 and the cup liner 3 form a fixed structure.
  • cup liner 3 in the artificial hip cup of the present invention may also be a hard lining of a metal lining; the inner layer 2 may also have a standard spherical structure, the inner layer 2 and the inner lining 4 and ⁇ The cup liner 3 forms a sliding friction surface.
  • the inner layer of the structure provided by the present invention is bonded to the cup liner by the inner liner of polyetheretherketone (PEEK) or its derivative, which reduces stress concentration and appropriately increases the rigidity of the cup.
  • PEEK polyetheretherketone
  • the lining of the cup is wrapped by the inner liner of the PEEK or the derivative and then combined with the inner layer, which can meet the matching requirements of the hard lining and the matching requirements of the soft lining.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)

Abstract

一种人工髋关节臼杯，呈内凹型半圆弧状，包括外层（1）、内层（2）、臼杯内衬（3）和内衬外套（4），其中该外层（1）与该内层（2）固定成一体结构；该内衬外套（4）包裹该臼杯内衬（3），该内衬外套（4）的外侧与该内层（2）表面锁合，该内衬外套（4）的内侧与该臼杯内衬（3）相匹配；该内衬外套（4）由聚醚醚酮（PEEK）或其衍生物构成。通过PEEK或其衍生物的内衬外套（4）与臼杯内衬（3）结合，降低了应力集中，也适当增加了臼杯的刚性。通过PEEK或衍生物的内衬外套（4）包裹臼杯内衬（3）再与内层（2）结合，既能满足硬内衬的匹配要求，又能满足软内衬的匹配要求。

Description

一种人工髋关节臼杯 技术领域
本发明涉及一种医疗康复器械，更具体地，涉及一种人工髋关节臼杯。
背景技术
近年来新一代髋关节臼杯假体普遍采用一杯多衬的设计，即臼杯能同时接受软内衬(UHMWPE内衬，Ries MD.Review of the evolution of the cementless acetabular cup.Orthopedics.2008Dec；31(12Suppl 2).pii：orthosupersite.com/view.asp？rID＝37178.Review.)和硬内衬(陶瓷内衬，Chotai PN1，Su EP.Orthopedics.2011Oct 5；34(10)：e682-4.doi：10.3928/01477447-20110826-30.Fracture of a titanium sleeve-encased third-generation ceramic liner in a modern THA，或金属内衬)。但是这两种内衬对锁合结构有截然不同的要求，其中软内衬要求尽可能的外侧球面无缝接触臼杯内壁，从而消除水泵效应及保证内衬壁厚度最大化，而硬内衬则要求内衬外侧边缘锥面与臼杯内壁锥面锁合。
对于不同的病人而言，有的适合于接受软内衬的臼杯，有的适合于接受硬内衬的臼杯，然而，对于硬内衬的臼杯而言，硬内衬特别是陶瓷内衬对臼杯的变形而形成的应力集中特别敏感，为了防止硬内衬对臼杯的应力过大导致臼杯破损，往往将臼杯的边缘厚度最大化来增加臼杯的刚性。然而，这样的做法不仅繁琐，而且往往会导致制作成本较高等一系列缺陷。
因此，一种新的接受硬内衬的人工髋关节臼杯是期望的。
发明内容
针对上述解决的技术问题，本发明的目的是提供一种人工髋关节臼杯。
为了实现上述发明，本发明采用如下技术方案：
一种人工髋关节臼杯，所述人工髋关节臼杯呈内凹型半圆弧状，包括外层、内层、臼杯内衬和内衬外套，其中所述外层与所述内层固定成一体结构；所述内衬外套包裹所述臼杯内衬，所述内衬外套的外侧与所述内层表面锁合，所述内衬外套的内侧与所述臼杯内衬相匹配；所述内衬外套由聚醚醚酮或其衍生物构成。
进一步地，所述臼杯内衬为硬内衬。
进一步地，所述硬内衬为陶瓷内衬或金属内衬。
进一步地，所述内层表面为标准球形结构，所述内层与所述内衬外套和所述臼杯内衬形成滑动摩擦面。
进一步地，所述内层表面为非标准球形结构，所述内层与所述内衬外套和所述臼杯内衬形成组配式固定结构。
由于采用以上技术方案，本发明的有益效果为：
1)本发明提供的结构中的内层通过聚醚醚酮(PEEK)或其衍生物的内衬外套与臼杯内衬结合，降低了应力集中，也适当增加了臼杯的刚性。
2)本发明结构中通过PEEK或衍生物的内衬外套包裹臼杯内衬再与内层结合，既能满足硬内衬的匹配要求，又能满足软内衬的匹配要求。
附图说明
图1为本发明提供的人工髋关节臼杯的一个实施例的结构示意图。
附图标记说明
1外层、2内层、3臼杯内衬、4内衬外套
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，下面结合附图及实施例对本发明作进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
如图1所示，本发明提供的人工髋关节臼杯的一个实施例，在该实施例中，人工髋关节臼杯呈内凹型半圆弧状，包括外层1、内层2、臼杯内衬3和内衬外套4，其中外层1与内层2固定成一体结构；内衬外套4包裹臼杯内衬3，内衬外套4的外侧与内层2表面锁合，内衬外套4的内侧与臼杯内衬3相匹配；内衬外套4由聚醚醚酮(PEEK)或其衍生物构成。
在上述实施例中，臼杯内衬3为硬内衬；硬内衬优选陶瓷内衬。
在上述实施例中，内层2表面为非标准球形结构，内层2与内衬外套4和臼杯内衬3形成组配式固定结构。
此外，本发明提供的人工髋关节臼杯中的臼杯内衬3也可以为金属内衬的硬内衬；内层2表面也可以为标准球形结构，内层2与内衬外套4和臼杯内衬3形成滑动摩擦面。
本发明提供的结构中的内层通过聚醚醚酮(PEEK)或其衍生物的内衬外套与臼杯内衬结合，降低了应力集中，也适当增加了臼杯的刚性。
本发明结构中通过PEEK或衍生物的内衬外套包裹臼杯内衬再与内层结合，既能满足硬内衬的匹配要求，又能满足软内衬的匹配要求。
以上所述仅为本发明的较佳实施例，并非用来限定本发明的实施范围；如果不脱离本发明的精神和范围，对本发明进行修改或者等同替换，均应涵盖在本发明权利要求的保护范围当中。

Claims (5)

  1. 一种人工髋关节臼杯，其特征在于，所述人工髋关节臼杯呈内凹型半圆弧状，包括外层、内层、臼杯内衬和内衬外套，其中所述外层与所述内层固定成一体结构；所述内衬外套包裹所述臼杯内衬，所述内衬外套的外侧与所述内层表面锁合，所述内衬外套的内侧与所述臼杯内衬相匹配；所述内衬外套由聚醚醚酮或其衍生物构成。
  2. 根据权利要求1所述的人工髋关节臼杯，其特征在于，所述臼杯内衬为硬内衬。
  3. 根据权利要求2所述的人工髋关节臼杯，其特征在于，所述硬内衬为陶瓷内衬或金属内衬。
  4. 根据权利要求1或3所述的人工髋关节臼杯，其特征在于，所述内层表面为标准球形结构，所述内层与所述内衬外套和所述臼杯内衬形成滑动摩擦面。
  5. 根据权利要求1或3所述的人工髋关节臼杯，其特征在于，所述内层表面为非标准球形结构，所述内层与所述内衬外套和所述臼杯内衬形成组配式固定结构。
PCT/CN2015/000730 2015-08-04 2015-10-28 一种人工髋关节臼杯 WO2017020148A1 (zh)

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CN111437076A (zh) * 2020-04-02 2020-07-24 青岛大学附属医院 一种多片组合式人工关节臼杯结构

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Publication number Priority date Publication date Assignee Title
EP1647242A1 (en) * 2004-10-12 2006-04-19 Benoist Girard Sas Prosthetic acetabular cups
US20090192610A1 (en) * 2008-01-30 2009-07-30 Zimmer, Inc. Orthopedic component of low stiffness
CN102821716A (zh) * 2010-02-04 2012-12-12 芬斯贝利(发展)有限责任公司 假体
CN201798825U (zh) * 2010-09-10 2011-04-20 黄国富 一种中空状三合一式金属衬型髋关节臼
CN104080424A (zh) * 2011-11-03 2014-10-01 英国巴奥米特保健有限公司 假体组件
CN104546227A (zh) * 2015-01-07 2015-04-29 北京爱康宜诚医疗器材股份有限公司 组配式双动髋臼假体
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