CN106264801A - 解剖型不对称双平台膝关节假体 - Google Patents

解剖型不对称双平台膝关节假体 Download PDF

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Publication number
CN106264801A
CN106264801A CN201610633757.3A CN201610633757A CN106264801A CN 106264801 A CN106264801 A CN 106264801A CN 201610633757 A CN201610633757 A CN 201610633757A CN 106264801 A CN106264801 A CN 106264801A
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Prior art keywords
tibial plateau
prosthese
knee
pad
joint prosthesis
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刘念
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JIASITE MEDICAL EQUIPMENT (TIANJIN) CO Ltd
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JIASITE MEDICAL EQUIPMENT (TIANJIN) CO Ltd
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Priority to CN201610633757.3A priority Critical patent/CN106264801A/zh
Publication of CN106264801A publication Critical patent/CN106264801A/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
    • A61F2/3836—Special connection between upper and lower leg, e.g. constrained
    • 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
    • A61F2/3868—Joints for elbows or knees with sliding tibial bearing
    • 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
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
    • A61F2002/30322—The prosthesis having different structural features at different locations within the same prosthesis differing in surface structures

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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

本发明涉及医疗器械领域，尤其涉及解剖型不对称双平台膝关节假体，包括胫骨平台假体，两个设于胫骨平台假体上的胫骨平台垫假体及与胫骨平台垫假体配合的股骨髁假体，解剖型不对称双平台膝关节假体可以实现ACL和PCL同时保留，提高膝关节的稳定性，保证膝关节假体的活动功能，提升全膝关节假体术后病人对膝关节假体使用的本体感觉。

Description

解剖型不对称双平台膝关节假体
技术领域
本发明涉及医疗器械领域，尤其涉及解剖型不对称双平台膝关节假体。
背景技术
全膝关节置换手术中，韧带在术中关节功能恢复中起到了重要的作用。尤其是前交叉韧带和后交叉韧带，前交叉韧带(ACL)连接股骨与胫骨，主要作用是限制胫骨向前过度移位，后交叉韧带(PCL)，主要作用是引导股骨的后滚运动，实现膝关节弯曲运动的同时，限制关节向后的过度移位。
现阶段全膝关节假体ACL无法实现保留必须切除，PCL可根据病人病情程度和PCL损坏情况而定，分为PCL保留型和不保留型。无法实现ACL和PCL的同时保留会大大影响术后病人的使用感觉，也影响膝关节的稳定性。
发明内容
本发明所要解决的技术问题是克服现有技术中存在的不足，提供一种能够同时保留ACL和PCL，提升膝关节的稳定性及术后病人使用本位感觉的解剖型不对称双平台膝关节假体。
本发明是通过以下技术方案予以实现：
解剖型不对称双平台膝关节假体，包括胫骨平台假体，两个设于胫骨平台假体上的胫骨平台垫假体及与胫骨平台垫假体配合的股骨髁假体，所述胫骨平台假体中部设有让位缺口，让位缺口两侧分别设有胫骨平台垫安装凹口，胫骨平台假体上侧面在胫骨平台垫安装凹口外后侧设有限位凸块，所述胫骨平台垫假体卡入胫骨平台垫安装凹口并通过限位凸块锁定，两个所述胫骨平台垫假体为内侧胫骨平台垫假体及外侧胫骨平台垫假体，内侧胫骨平台垫假体的垂直投影面积大于外侧胫骨平台垫假体的的垂直投影面积。
两个所述胫骨平台垫假体与人体解剖形态一致。
两个所述胫骨平台垫的上表面分别设有与股骨髁假体平面相对应的弧面，其配合股骨髁使得膝关节内外翻活动角度为5°到10°。
两个胫骨平台垫假体可选用高交联聚乙烯材料、Al2O3或ZrO2材料。
本发明的有益效果是：
解剖型不对称双平台膝关节假体可以实现ACL和PCL同时保留，提高膝关节的稳定性，保证膝关节假体的活动功能，提升全膝关节假体术后病人的对膝关节假体的使用感觉。
附图说明
图1是本发明的结构示意图。
图2是本发明的胫骨平台假体的立体图。
图3是本发明的胫骨平台假体的主视图
图4是本发明的胫骨平台垫假体立体图。
图5是本发明的胫骨平台垫假体主视图。
图中：1.胫骨平台假体，2.胫骨平台垫假体，3.股骨髁假体，4.让位缺口，5.胫骨平台垫安装凹口，6.限位凸块，7.内侧胫骨平台垫假体，8.外侧胫骨平台垫假体。
具体实施方式
为了使本技术领域的技术人员更好地理解本发明的技术方案，下面结合附图和最佳实施例对本发明作进一步的详细说明。
如图所示，本发明包括胫骨平台假体1，两个设于胫骨平台假体上的胫骨平台垫假体2及与胫骨平台垫假体配合的股骨髁假体3，所述胫骨平台假体中部设有让位缺口4，让位缺口两侧分别设有胫骨平台垫安装凹口5，胫骨平台假体上侧面在胫骨平台垫安装凹口外后侧设有限位凸块6，所述胫骨平台垫假体卡入胫骨平台垫安装凹口并通过限位凸块锁定，两个所述胫骨平台垫假体为内侧胫骨平台垫假体7及外侧胫骨平台垫假体8，内侧胫骨平台垫假体的垂直投影面积大于外侧胫骨平台垫假体的的垂直投影面积。
胫骨平台假体中部的让位缺口，对ACL和PCL进行让位，实现在保留ACL和PCL前提下，假体与人体的良好配合。
两个半圆形垫片独立设置，且内侧胫骨平台垫假体的垂直投影面积大于外侧胫骨平台垫假体的的垂直投影面积，符合人体解剖特性。
限位凸块对卡入胫骨平台垫安装凹口的胫骨平台垫假体进行锁定，保证其固定稳固。
优选的，两个所述胫骨平台垫假体与人体解剖形态一致。
优选的，两个所述胫骨平台垫的上表面分别设有与股骨髁假体平面相对应的弧面，其配合股骨髁使得膝关节内外翻活动角度为5°到10°，维持膝盖假体的正常生理功能，提高术后病人的使用感觉。
两个胫骨平台垫假体可选用高交联聚乙烯材料、Al2O3或ZrO2材料。
解剖型不对称双平台膝关节假体可以实现ACL和PCL同时保留，提高膝关节的稳定性，保证膝关节假体的活动功能，提升全膝关节假体术后病人的对膝关节假体的使用感觉。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (4)

1.解剖型不对称双平台膝关节假体，其特征在于，包括胫骨平台假体，两个设于胫骨平台假体上的胫骨平台垫假体及与胫骨平台垫假体配合的股骨髁假体，所述胫骨平台假体中部设有让位缺口，让位缺口两侧分别设有胫骨平台垫安装凹口，胫骨平台假体上侧面在胫骨平台垫安装凹口外后侧设有限位凸块，所述胫骨平台垫假体卡入胫骨平台垫安装凹口并通过限位凸块锁定，两个所述胫骨平台垫假体为内侧胫骨平台垫假体及外侧胫骨平台垫假体，内侧胫骨平台垫假体的垂直投影面积大于外侧胫骨平台垫假体的的垂直投影面积。
2.根据权利要求1所述的解剖型不对称双平台膝关节假体，其特征在于，两个所述胫骨平台垫假体与人体解剖形态一致。
3.根据权利要求1或2所述的解剖型不对称双平台膝关节假体，其特征在于，两个所述胫骨平台垫的上表面分别设有与股骨髁假体平面相对应的弧面，其配合股骨髁使得膝关节内外翻活动角度为5°到10°。
4.根据权利要求3所述的解剖型不对称双平台膝关节假体，其特征在于，两个胫骨平台垫假体可选用高交联聚乙烯材料、Al2O3或ZrO2材料。
CN201610633757.3A 2016-08-03 2016-08-03 解剖型不对称双平台膝关节假体 Pending CN106264801A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111281619A (zh) * 2020-03-30 2020-06-16 北京市春立正达医疗器械股份有限公司 膝关节胫骨垫

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963152A (en) * 1986-10-27 1990-10-16 Intermedics Orthopedics, Inc. Asymmetric prosthetic tibial component
US5314483A (en) * 1992-01-14 1994-05-24 Protek Ag Meniscus platform for an artificial knee joint
GB2278782A (en) * 1993-04-20 1994-12-14 Kevin Hardinge An improved knee arthroplasty and tibial component therefor
EP0955020A2 (de) * 1998-04-29 1999-11-10 Dietmar Muno Kniegelenk-Endoprothesen-Bausatz
US20010014827A1 (en) * 1997-09-23 2001-08-16 Tornier S.A. Knee prosthesis with a rotational plate
US20010047211A1 (en) * 2000-05-29 2001-11-29 Vincent Leclercq Knee prosthesis
CN101450014A (zh) * 2007-12-07 2009-06-10 王岩 可保留或重建前交叉韧带的人工膝关节置换假体
CN102727328A (zh) * 2012-06-06 2012-10-17 中山大学 保留前后交叉韧带的人工全膝关节
US20130245777A1 (en) * 2010-10-28 2013-09-19 Gerald J. Jerry Knee system
CN104093380A (zh) * 2011-11-21 2014-10-08 捷迈有限公司 具有不对称设置的固定结构的胫骨基板
CN105012052A (zh) * 2015-06-29 2015-11-04 北京贝思达生物技术有限公司 一种人工膝关节

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963152A (en) * 1986-10-27 1990-10-16 Intermedics Orthopedics, Inc. Asymmetric prosthetic tibial component
US5314483A (en) * 1992-01-14 1994-05-24 Protek Ag Meniscus platform for an artificial knee joint
GB2278782A (en) * 1993-04-20 1994-12-14 Kevin Hardinge An improved knee arthroplasty and tibial component therefor
US20010014827A1 (en) * 1997-09-23 2001-08-16 Tornier S.A. Knee prosthesis with a rotational plate
EP0955020A2 (de) * 1998-04-29 1999-11-10 Dietmar Muno Kniegelenk-Endoprothesen-Bausatz
US20010047211A1 (en) * 2000-05-29 2001-11-29 Vincent Leclercq Knee prosthesis
CN101450014A (zh) * 2007-12-07 2009-06-10 王岩 可保留或重建前交叉韧带的人工膝关节置换假体
US20130245777A1 (en) * 2010-10-28 2013-09-19 Gerald J. Jerry Knee system
CN104093380A (zh) * 2011-11-21 2014-10-08 捷迈有限公司 具有不对称设置的固定结构的胫骨基板
CN102727328A (zh) * 2012-06-06 2012-10-17 中山大学 保留前后交叉韧带的人工全膝关节
CN105012052A (zh) * 2015-06-29 2015-11-04 北京贝思达生物技术有限公司 一种人工膝关节

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111281619A (zh) * 2020-03-30 2020-06-16 北京市春立正达医疗器械股份有限公司 膝关节胫骨垫

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