CN107149512A - 一种膝关节胫骨部件 - Google Patents

一种膝关节胫骨部件 Download PDF

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CN107149512A
CN107149512A CN201710506513.3A CN201710506513A CN107149512A CN 107149512 A CN107149512 A CN 107149512A CN 201710506513 A CN201710506513 A CN 201710506513A CN 107149512 A CN107149512 A CN 107149512A
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knee joint
tibial part
joint tibial
coating
osteotomy
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朱忠林
朱健
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Suzhou Zhongke Biology Medical Material Co ltd
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Jiangsu Okani Medical Technology Co Ltd
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Priority to PCT/CN2017/107571 priority patent/WO2019000733A1/zh
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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
    • 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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    • 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
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30242—Three-dimensional shapes spherical
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30285—Three-dimensional shapes rugby-ball-shaped
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00407—Coating made of titanium or of Ti-based alloys
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
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    • A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00419—Other metals
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    • A—HUMAN NECESSITIES
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite

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Abstract

本发明提供一种膝关节胫骨部件，所述膝关节胫骨部件包括与截骨面接触的接触面，所述接触面包括向所述截骨面凸起的表面。本发明实施例提供的膝关节胫骨部件，由于具有向截骨面凸起的表面，因此，膝关节胫骨部件的向截骨面凸起的表面与截骨凹面形成压配组合，实现越压越紧的目的，进而有利于产品的初期固定，以及提供较好的压配环境，并在体内骨骼和膝关节胫骨部件的压力作用下，在膝关节胫骨部件的生物固定涂层或者骨小梁结构上，实现骨长入，促进骨生长，最终实现骨长入的生物固定效果。

Description

一种膝关节胫骨部件
技术领域
本发明涉及膝关节胫骨部件。
背景技术
膝关节胫骨部件用于人工关节置换，将膝关节胫骨部件采用骨长入的方式固定到患者的胫骨中，膝关节胫骨部件与胫骨截面相接触。如图1所示，目前的胫骨103的截骨为平面截骨102，胫骨部件101的底平面为单一水平面，因此，膝关节胫骨部件的外围支撑、内部区域接触压力较小，不利于骨长入。同时，目前的胫骨平面截面后，内侧和外侧的软硬程度不同，对胫骨部件的支撑不均衡，出现“跷跷板”的效应，产品和骨之间没有紧密贴合，不利于骨长入。
发明内容
因此，本发明的一个目的是提出一种膝关节胫骨部件。
本发明提供的一种膝关节胫骨部件，所述膝关节胫骨部件包括与截骨面接触的接触面，所述接触面包括向所述截骨面凸起的表面。
在本公开一实施例中，所述表面包括：锥面、球面、椭球面、NURBS曲面中的一种或多种的组合。
在本公开一实施例中，所述表面包括生物固定涂层制成的表面。
在本公开一实施例中，所述生物固定涂层包括：羟基磷灰石涂层、钛喷涂涂层、钛珠烧结涂层、多孔钽涂层、多孔钛涂层、或者多孔有机材料制成的多孔涂层。
在本公开一实施例中，所述表面包括骨小梁结构制成的表面。
在本公开一实施例中，所述接触面包括两个或两个以上的所述表面。
在本公开一实施例中，所述膝关节胫骨部件包括胫骨托和胫骨垫，所述接触面位于所述胫骨托。
本发明实施例提供的膝关节胫骨部件，由于具有向截骨面凸起的表面，因此，膝关节胫骨部件的向截骨面凸起的表面与截骨凹面形成压配组合，实现越压越紧的目的，进而有利于产品的初期固定，以及提供较好的压配环境，并在体内骨骼和膝关节胫骨部件的压力作用下，在膝关节胫骨部件的生物固定涂层或者骨小梁结构上，实现骨长入，促进骨生长，最终实现骨长入的生物固定效果。
本发明实施例的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。
下面通过附图和实施例，对本发明实施例的技术方案做进一步的详细描述。
附图说明
附图用来提供对本发明实施例的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明实施例的限制。在附图中：
图1是传统的膝关节胫骨部件的示意图。
图2是本发明一实施例提供的一种膝关节胫骨部件的截面示意图。
图3是本发明实施例提供的膝关节胫骨部件的使用示意图。
图4是本发明实施例提供的膝关节胫骨部件完全固定到患者的胫骨中的截面示意图。
图5是本发明另一实施例提供的一种膝关节胫骨部件的截面示意图。
图6是本发明另一实施例提供的一种膝关节胫骨部件的截面示意图。
具体实施方式
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明实施例，并不用于限定本发明实施例。
如图2所示为本发明一实施例提供的一种膝关节胫骨部件的截面示意图，其中，膝关节胫骨部件200包括与截骨面接触的接触面201，所述接触面201包括向截骨面凸起的表面202。
如图3所示为本发明实施例提供的膝关节胫骨部件的使用示意图。在图3中，膝关节胫骨部件200采用骨长入的方式固定到患者的胫骨300中，膝关节胫骨部件200包括与截骨面接触的接触面，接触面与胫骨截骨面相接触。
如图4所示为本发明实施例提供的膝关节胫骨部件200完全固定到患者的胫骨300中的截面示意图。膝关节胫骨部件200与胫骨300的接触面包括向胫骨300的截骨面凸起的表面202。
在本公开另一实施例中，向胫骨300的截骨面凸起的表面202可以包括：锥面、球面、椭球面、NURBS(Non-uniform rational basis spline，非均匀有理B样条)曲面中的一种或多种的组合。接触面可以包括两个或两个以上的表面202。如图2所示胫骨平台内侧和胫骨平台外侧分别设置椭球面202。如图5所示，向胫骨300的截骨面凸起的表面202为单一锥面。
在本公开另一实施例中，表面202包括生物固定涂层制成的表面。其中，生物固定涂层可以包括：羟基磷灰石涂层、钛喷涂涂层、钛珠烧结涂层、多孔钽涂层、多孔钛涂层、或者多孔有机材料制成的多孔涂层，比如聚醚醚酮及其衍生物制成的多孔涂层。
在本公开另一实施例中，表面202包括骨小梁结构制成的表面。骨小梁是骨皮质在松质骨内的延伸部分，在骨髓腔中呈不规则立体网状结构，如丝瓜络样或海绵状，起支持造血组织的作用。
膝关节胫骨部件可以是全聚乙烯胫骨单一部件。此外，在本公开一实施例中，如图6所示，膝关节胫骨部件可以包括胫骨托301和胫骨垫302，接触面201位于胫骨托301。
在使用本公开实施例提供的膝关节胫骨部件时，可以采用通用的人工关节置换术，在胫骨截骨的手术步骤，采用特殊设计的器械，对胫骨平台实现非平面的截骨，截骨后的形状和膝关节胫骨部件的基础面的表面的形状一致；采用胫骨试模对截骨的曲面进行间隙评估；采用直接安装生物固定型膝关节胫骨部件的方式，不需要骨水泥辅助固定，在骨缺损等特殊情况下，允许医生采用骨水泥辅助固定；膝关节胫骨部件安装后，截骨后的胫骨近端，与膝关节胫骨部件的形状吻合，在人体自然行走等运动力学环境下，膝关节胫骨部件的凸面和截骨凹面形成压配组合，实现越压越紧的目的，进而有利于产品的初期固定，以及提供较好的压配环境，并在体内骨骼和膝关节胫骨部件的压力作用下，在膝关节胫骨部件的生物固定涂层或者骨小梁结构上，实现骨长入，促进骨生长，最终实现骨长入的生物固定效果。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (7)

1.一种膝关节胫骨部件，其特征在于，所述膝关节胫骨部件包括与截骨面接触的接触面，所述接触面包括向所述截骨面凸起的表面。
2.根据权利要求1所述的膝关节胫骨部件，其特征在于，所述表面包括：锥面、球面、椭球面、NURBS曲面中的一种或多种的组合。
3.根据权利要求1所述的膝关节胫骨部件，其特征在于，所述表面包括生物固定涂层制成的表面。
4.根据权利要求3所述的膝关节胫骨部件，其特征在于，所述生物固定涂层包括：羟基磷灰石涂层、钛喷涂涂层、钛珠烧结涂层、多孔钽涂层、多孔钛涂层、或者多孔有机材料制成的多孔涂层。
5.根据权利要求1所述的膝关节胫骨部件，其特征在于，所述表面包括骨小梁结构制成的表面。
6.根据权利要求1所述的膝关节胫骨部件，其特征在于，所述接触面包括两个或两个以上的所述表面。
7.根据权利要求1所述的膝关节胫骨部件，其特征在于，所述膝关节胫骨部件包括胫骨托和胫骨垫，所述接触面位于所述胫骨托。
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107822746A (zh) * 2017-11-16 2018-03-23 北京中安泰华科技有限公司 个性化类骨小梁结构膝关节假体及制作方法
CN108210127A (zh) * 2018-01-04 2018-06-29 上海科太迈迪医疗器械有限公司 骨小梁结构的非骨水泥型胫骨组件及其制备方法
CN108938147A (zh) * 2018-06-26 2018-12-07 西安赛隆金属材料有限责任公司 一种多孔钽胫骨平台
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CN109199643A (zh) * 2018-04-26 2019-01-15 四川大学华西医院 组配式保踝保膝胫骨干假体
CN110840630A (zh) * 2019-11-26 2020-02-28 北京市春立正达医疗器械股份有限公司 胫骨平台托和应用其的膝关节假体

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CN108938147A (zh) * 2018-06-26 2018-12-07 西安赛隆金属材料有限责任公司 一种多孔钽胫骨平台
CN110840630A (zh) * 2019-11-26 2020-02-28 北京市春立正达医疗器械股份有限公司 胫骨平台托和应用其的膝关节假体

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