CN112603607A - 一种关节假体 - Google Patents

一种关节假体 Download PDF

Info

Publication number
CN112603607A
CN112603607A CN202011581090.XA CN202011581090A CN112603607A CN 112603607 A CN112603607 A CN 112603607A CN 202011581090 A CN202011581090 A CN 202011581090A CN 112603607 A CN112603607 A CN 112603607A
Authority
CN
China
Prior art keywords
humerus
prosthesis
head
gasket
humerus head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011581090.XA
Other languages
English (en)
Inventor
张佳洋
史春宝
郭静
王振国
杨珊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Chunlizhengda Medical Instruments Co Ltd
Original Assignee
Beijing Chunlizhengda Medical Instruments Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Chunlizhengda Medical Instruments Co Ltd filed Critical Beijing Chunlizhengda Medical Instruments Co Ltd
Priority to CN202011581090.XA priority Critical patent/CN112603607A/zh
Publication of CN112603607A publication Critical patent/CN112603607A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61F2/40—Joints for shoulders
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • 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
    • A61F2/40—Joints for shoulders
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • A61F2002/4018—Heads or epiphyseal parts of humerus

Landscapes

  • 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)

Abstract

本发明提供一种关节假体，包括肱骨头假体、空心螺钉和垫片，其中所述肱骨头假体设有突出部，所述突出部设有贯穿螺钉孔，所述空心螺钉通过垫片压在骨质表面，且所述空心螺钉穿过所述骨头与所述螺钉孔配合。反向的空心螺钉与肱骨头连接后，施加一个下拉的力，致使肱骨头紧贴肱骨近端表面，防止后期脱落。透过配用垫片与肱骨头螺纹连接，将肱骨头牢牢压紧在肱骨近端表面，降低肱骨头脱落风险。

Description

一种关节假体
技术领域
本发明涉及一种医疗器械，特别是一种关节假体。
背景技术
目前针对骨性关节炎的患者，经常进行表面肩关节置换，假体组成一般为覆盖于肱骨表面的额肱骨头与植入肱骨近端髓腔的髓针组成。植入髓腔的髓针一般分为骨水泥型和生物型假体，骨水泥型需采用骨水泥粘合固定，生物型髓针一般表面为钛粉涂层。
骨水泥型髓针适合骨质疏松的患者，生物型髓针适合骨质良好的患者。但是作为初次置换手术，骨水泥型假体并不适用，髓腔中的骨水泥在翻修手术中不容易清理；并且生物型髓针植入髓腔之后，肱骨近端皮质骨层可以与钛粉结合牢固，但是下层的松质骨钛粉的长入效果并不是很好，再往下层基本为中空状态，后期的稳固性仅仅靠近端的皮质骨层接触，牢固性较差。
因此，当下急需一种牢固性高的关节假体。
发明内容
为解决上述技术问题，本发明提供一种关节假体，包括肱骨头假体、空心螺钉和垫片，其中所述肱骨头假体设有突出部，所述突出部设有贯螺钉孔，所述空心螺钉通过垫片压在骨质表面，且所述空心螺钉穿过所述骨头与所述螺钉孔配合。
进一步的，所述螺钉孔贯穿整个肱骨头假体。
进一步的，所述垫片面向骨质一侧设有锥形尖角，可以将垫片进行一个比较好的固定；
进一步的，所述肱骨头假体为半球形，且具有向球心凸出的突出部；
进一步的，所述肱骨头假体与所述突出部一体成型。
进一步的，所述肱骨头假体与所述突出部材质均为钛合金。
该关节假体的使用方法：
首先使用克氏针进行打孔定位，穿透肱骨近端，肱骨头顺着克氏针定位方向覆盖于肱骨近端表面。体外进行空心螺钉及配用垫片组装，然后将空心螺钉在肱骨近端对侧沿着之前打入的克氏针拧入与肩关节假体形成锁定，最后取出克氏针。
本关节假体的优点在于：反向的空心螺钉与肱骨头连接后，施加一个下拉的力，致使肱骨头紧贴肱骨近端表面，防止后期脱落。透过配用垫片与肱骨头螺纹连接，将肱骨头牢牢压紧在肱骨近端表面，降低肱骨头脱落风险。
附图说明
图1是关节假体结构示意图；
1-肱骨头假体，2-空心螺钉，3-垫片，4-突出部。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明的一种关节假体作进一步的详细描述。
为解决上述技术问题，本发明提供一种关节假体，包括肱骨头假体1、、空心螺钉2和垫片3，其中所述肱骨头假体1设有突出部4，所述突出部4设有贯螺钉孔，所述空心螺钉通过垫片3压在骨质表面，且所述空心螺钉2穿过所述骨头与所述螺钉孔配合。所述螺钉孔贯穿整个肱骨头假体。所述垫片3面向骨质一侧设有锥形尖角，可以将垫片进行一个比较好的固定；
其中一个实施例给出：所述肱骨头假体为半球形，且具有向球心凸出的突出部；
所述肱骨头假体与所述突出部一体成型。所述肱骨头假体与所述突出部材质均为钛合金。
该关节假体的使用方法：
首先使用克氏针进行打孔定位，穿透肱骨近端，肱骨头顺着克氏针定位方向覆盖于肱骨近端表面。体外进行空心螺钉及配用垫片组装，然后将空心螺钉在肱骨近端对侧沿着之前打入的克氏针拧入与肩关节假体形成锁定，最后取出克氏针。
本关节假体的优点在于：反向的空心螺钉与肱骨头连接后，施加一个下拉的力，致使肱骨头紧贴肱骨近端表面，防止后期脱落。透过配用垫片与肱骨头螺纹连接，将肱骨头牢牢压紧在肱骨近端表面，降低肱骨头脱落风险。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (6)

1.一种关节假体，其特征在于:包括肱骨头假体、空心螺钉和垫片，其中所述肱骨头假体设有突出部，所述突出部设有贯穿螺钉孔，所述空心螺钉通过垫片压在骨质表面，且所述空心螺钉穿过所述骨头与所述螺钉孔配合。
2.根据权利要求1所述的一种关节假体，其特征在于：所述螺钉孔贯穿整个肱骨头假体。
3.根据权利要求1所述的一种关节假体，其特征在于：所述垫片面向骨质一侧设有锥形尖角，可以将垫片进行一个比较好的固定。
4.根据权利要求1所述的一种关节假体，其特征在于：所述肱骨头假体为半球形，且具有向球心凸出的突出部。
5.根据权利要求1所述的一种关节假体，其特征在于：所述肱骨头假体与所述突出部一体成型。
6.根据权利要求1所述的一种关节假体，其特征在于：所述肱骨头假体与所述突出部材质均为钛合金。
CN202011581090.XA 2020-12-28 2020-12-28 一种关节假体 Pending CN112603607A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011581090.XA CN112603607A (zh) 2020-12-28 2020-12-28 一种关节假体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011581090.XA CN112603607A (zh) 2020-12-28 2020-12-28 一种关节假体

Publications (1)

Publication Number Publication Date
CN112603607A true CN112603607A (zh) 2021-04-06

Family

ID=75248339

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011581090.XA Pending CN112603607A (zh) 2020-12-28 2020-12-28 一种关节假体

Country Status (1)

Country Link
CN (1) CN112603607A (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020087161A1 (en) * 2001-01-03 2002-07-04 Randall Bernard L. Cannulated locking screw system especially for transiliac implant
US20020107520A1 (en) * 2000-11-07 2002-08-08 Hoffman Erik Leonard Fastening element for an implant, in particular a hip prosthesis
US20070282450A1 (en) * 2004-01-22 2007-12-06 Peter Habermeyer Humeral Head Prosthesis
EP1867303A1 (de) * 2006-06-16 2007-12-19 Implantcast GmbH Oberflächenersatzprothese für den Humeruskopf
US20090105838A1 (en) * 2005-05-27 2009-04-23 Enrico Russo Osteosynthesis Modular Prosthesis, Particularily for Humerus Osterosynthesis
CN103445886A (zh) * 2013-03-07 2013-12-18 刘礼初 一种生物型人工髋关节表面置换假体
US20160175101A1 (en) * 2011-10-27 2016-06-23 Toby Orthopaedics, Inc. System and method for fracture replacement of comminuted bone fractures or portions thereof adjacent bone joints
US20180000600A1 (en) * 2010-10-27 2018-01-04 Toby Orthopaedics, Inc. System and Method for Fracture Replacement of Comminuted Bone Fractures or Portions Thereof Adjacent Bone Joints

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020107520A1 (en) * 2000-11-07 2002-08-08 Hoffman Erik Leonard Fastening element for an implant, in particular a hip prosthesis
US20020087161A1 (en) * 2001-01-03 2002-07-04 Randall Bernard L. Cannulated locking screw system especially for transiliac implant
US20070282450A1 (en) * 2004-01-22 2007-12-06 Peter Habermeyer Humeral Head Prosthesis
US20090105838A1 (en) * 2005-05-27 2009-04-23 Enrico Russo Osteosynthesis Modular Prosthesis, Particularily for Humerus Osterosynthesis
EP1867303A1 (de) * 2006-06-16 2007-12-19 Implantcast GmbH Oberflächenersatzprothese für den Humeruskopf
US20180000600A1 (en) * 2010-10-27 2018-01-04 Toby Orthopaedics, Inc. System and Method for Fracture Replacement of Comminuted Bone Fractures or Portions Thereof Adjacent Bone Joints
US20160175101A1 (en) * 2011-10-27 2016-06-23 Toby Orthopaedics, Inc. System and method for fracture replacement of comminuted bone fractures or portions thereof adjacent bone joints
CN103445886A (zh) * 2013-03-07 2013-12-18 刘礼初 一种生物型人工髋关节表面置换假体

Similar Documents

Publication Publication Date Title
JP4560262B2 (ja) ネジ固定式の人工関節
CN206167123U (zh) 一种保留关节面型组配式股骨肿瘤膝关节假体
US10925653B2 (en) Screw implants for bone fusion
US20120203352A1 (en) Minimally invasive total hip replacement
US20030204268A1 (en) Binary attachment mechanism and method for a modular prosthesis
US20080009951A1 (en) Femoral head resurfacing implant with internal plate fixation and instrumentation
EP3466374B1 (en) Fused femoral stem system
DE102004042502A1 (de) Schultergelenk-Endoprothese
CN214387789U (zh) 一种防止脱落的表面肩关节假体系统
CN111803246B (zh) 代替小粗隆部分的髋关节假体上端结构
CN112603607A (zh) 一种关节假体
CN111888055A (zh) 一种保留骨骺的股骨远端假体
CN103705319A (zh) 生物固定型胫骨平台
CN213098539U (zh) 一种可促进骨长入的股骨远端假体
WO2021129622A1 (zh) 翼状无柄髋关节假体
CN111904670A (zh) 一种用于保留股骨头的股骨假体
CN213851268U (zh) 一种用于表面置换的肩关节假体
CN219354283U (zh) 一种柱面联合骨整合的髋臼杯假体
CN217408938U (zh) 一种加压固定型椎弓根螺钉
CN217525514U (zh) 一种用于人工植入物的柱面联合骨整合的锁定骨整合螺钉
CN214761629U (zh) 一种邻关节骨缺损假体重建的髓腔内加压固定装置
CN112155793B (zh) 一种骨盆假体
CN217040257U (zh) 一种3d打印实体多孔相结合性低模量骨整合椎弓根螺钉
CN219480476U (zh) 一种用于股骨严重骨缺损重建的低弹性模量组配股骨柄
CN108888370B (zh) 一种设置有多段螺纹的牙种植体

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210406

RJ01 Rejection of invention patent application after publication