CN201790919U - 带有加强筋的膝关节间隔器 - Google Patents

带有加强筋的膝关节间隔器 Download PDF

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Publication number
CN201790919U
CN201790919U CN 201020537252 CN201020537252U CN201790919U CN 201790919 U CN201790919 U CN 201790919U CN 201020537252 CN201020537252 CN 201020537252 CN 201020537252 U CN201020537252 U CN 201020537252U CN 201790919 U CN201790919 U CN 201790919U
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China
Prior art keywords
spacer
knee joint
joint spacer
draw point
utility
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Expired - Lifetime
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CN 201020537252
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English (en)
Inventor
徐辉
丁莹莹
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Beijing AK Medical Co Ltd
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Beijing AK Medical Co Ltd
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Priority to CN 201020537252 priority Critical patent/CN201790919U/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
    • A61F2/38—Joints for elbows or knees
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Physical Education & Sports Medicine (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)

Abstract

本实用新型涉及一种带有加强筋的膝关节间隔器，它包括有股骨髁、垫片、钢针，适用于关节置换产生感染时，替代假体植入人体的临时间隔物。钢针形状由受力情况决定，在股骨髁的曲面中加入弯型钢针，在垫片中加入直线型钢针，这样可以提高间隔器的强度和承重力，防止间隔器断裂。

Description

带有加强筋的膝关节间隔器
技术领域
本实用新型涉及一种骨科植入物，特别是一种针对因术后感染临时替代假体的短期间隔物。
背景技术
在针对骨科置换手术中，术后患者易发生感染，感染后都需要将假体取出彻底清除感染，在证实感染已经被彻底清除后重新进行假体置换。在假体取出和新假体植入的间期内，骨水泥间隔器可以帮助增加骨量，防止局部抗生素丢失，允许患者获得一定的活动度，提高舒适性，改善软组织愈合，维持韧带张力。膝关节间隔器由股骨髁和垫片两部分组成。
实用新型内容
本实用新型的目的是为克服间隔器植入后发生断裂而提供的一种具有高强度的膝关节间隔器。
为实现上述目的，本实用新型采取以下设计方案：
在膝关节间隔器中易发生断裂的部分加入钢针进行固定。在股骨髁的曲面加入弯型钢针，在垫片中加入直线型钢针，提高了间隔器强度，防止断裂。
本实用新型的优点是：
本实用新型由于采用以上设计方案，在股骨髁和垫片中加入钢针，增加了间隔器的承重能力，提高了间隔器的强度，防止间隔器断裂。
附图说明
图1为本实用新型股骨髁的立体结构示意图
图2为本实用新型股骨髁的剖面示意图
图3为本实用新型垫片的立体结构示意图
图4为本实用新型垫片的剖面示意图
具体实施方式
以下结合附图对本实用新型的具体实施做进一步详细说明。
如图1、图2、图3、图4所示，本实用新型带有加强筋的膝关节间隔器，由骨水泥制成，它包括股骨髁1、垫片2、弯型钢针3、直线型钢针4。弯型钢针3的形状设计与股骨髁的外形相贴合，直线型钢针4放置在垫片厚度最薄，强度最小的位置，这样可以起到增加间隔器强度的作用。

Claims (4)

1.一种带有加强筋的膝关节间隔器，其特征在于，它包括有股骨髁(1)、垫片(2)、弯型钢针(3)和直线型钢针(4)。
2.根据权利要求1所述的带有加强筋的膝关节间隔器，其特征在于，弯型钢针(3)的形状和位置可以根据股骨髁(1)的尺寸规格以及受力情况而设计。
3.根据权利要求1所述的带有加强筋的膝关节间隔器，其特征在于，直线型钢针(4)的位置可以根据垫片(2)的受力情况而设计。
4.根据权利要求1所述的带有加强筋的膝关节间隔器，其特征在于，它采用骨水泥制成。
CN 201020537252 2010-09-21 2010-09-21 带有加强筋的膝关节间隔器 Expired - Lifetime CN201790919U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020537252 CN201790919U (zh) 2010-09-21 2010-09-21 带有加强筋的膝关节间隔器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020537252 CN201790919U (zh) 2010-09-21 2010-09-21 带有加强筋的膝关节间隔器

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CN201790919U true CN201790919U (zh) 2011-04-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104055606A (zh) * 2013-03-22 2014-09-24 赫罗伊斯医疗有限责任公司 具有凹口的两部件式膝关节间隔器
CN104507420A (zh) * 2012-04-19 2015-04-08 泰克尼梅德公司 用于临时替代膝关节假体的间隔物植入体
CN107106302A (zh) * 2014-11-06 2017-08-29 A·凯培莱蒂 膝盖的关节用改进的可调模块化衬垫装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104507420A (zh) * 2012-04-19 2015-04-08 泰克尼梅德公司 用于临时替代膝关节假体的间隔物植入体
CN104055606A (zh) * 2013-03-22 2014-09-24 赫罗伊斯医疗有限责任公司 具有凹口的两部件式膝关节间隔器
EP2781206B1 (de) 2013-03-22 2016-11-23 Heraeus Medical GmbH Zweiteiliger Kniespacer mit Aussparungen
CN107106302A (zh) * 2014-11-06 2017-08-29 A·凯培莱蒂 膝盖的关节用改进的可调模块化衬垫装置
CN107106302B (zh) * 2014-11-06 2021-07-27 科辛顿有限公司 膝盖的关节用改进的可调模块化衬垫装置

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