CN103648441B - 具有带有分叉轴的弯曲铰链的关节假体 - Google Patents

具有带有分叉轴的弯曲铰链的关节假体 Download PDF

Info

Publication number
CN103648441B
CN103648441B CN201280019418.6A CN201280019418A CN103648441B CN 103648441 B CN103648441 B CN 103648441B CN 201280019418 A CN201280019418 A CN 201280019418A CN 103648441 B CN103648441 B CN 103648441B
Authority
CN
China
Prior art keywords
axle head
axle
articular prosthesis
bolt
connecting piece
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.)
Active
Application number
CN201280019418.6A
Other languages
English (en)
Other versions
CN103648441A (zh
Inventor
C.巴特尔斯
K.德姆舍夫斯基
M.伊雷迪
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.)
Waldemar Link GmbH and Co KG
Original Assignee
Waldemar Link GmbH and Co KG
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 Waldemar Link GmbH and Co KG filed Critical Waldemar Link GmbH and Co KG
Publication of CN103648441A publication Critical patent/CN103648441A/zh
Application granted granted Critical
Publication of CN103648441B publication Critical patent/CN103648441B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • A61F2/384—Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement
    • 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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3836—Special connection between upper and lower leg, e.g. constrained
    • A61F2/384—Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement
    • A61F2/385—Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement also provided with condylar bearing surfaces
    • 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
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30182—Other shapes
    • A61F2002/30187—D-shaped or half-disc-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
    • 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
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/3037—Translation along the common longitudinal axis, e.g. piston
    • A61F2002/30373—Translation along the common longitudinal axis, e.g. piston with additional means for preventing said translation
    • 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
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30484—Mechanically expandable devices located on the first prosthetic part for locking into or onto the second prosthetic part
    • 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
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30505—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism spring biased
    • 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
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
    • 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
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements

Abstract

本发明涉及一种带有弯曲铰链的关节假体，弯曲铰链由铰链叉和轴螺栓(4)形成，轴螺栓包括两个轴端(42,43)，其为了插入布置在被拉入联结件(3)中的装配位置中并且在植入之后通过在轴向上运动到铰链叉的对齐的铰链孔中布置在膨胀的位置中，其中，轴螺栓(4)在其端部处具有两个轴承区域(41)和处于它们之间的接合区域(40)，并且其在接合区域(40)中沿着在轴向上伸延的平面(49)分开，该平面在两个部位处与轴螺栓(4)的侧面相交。

Description

具有带有分叉轴的弯曲铰链的关节假体
技术领域
本发明涉及一种带有弯曲铰链(Beugescharnier)的关节内置假体(Gelenkendoprothese)，弯曲铰链的轴螺栓(Achsbolzen)包括两个轴端(Achsstumpf)，其为了插入布置在被拉入联结件(Koppelstueck)中的装配位置中并且在插入中间部分之后通过在其纵向上运动到铰链叉(Scharniergabel)的对齐的铰链孔中之后布置在分叉的位置中。
背景技术
这样的内置假体尤其被用作用于膝关节的假体。其由于其由患者的体重引起的高负载和由于其复杂的运动过程比较易于由磨损或病症引起故障。由内置假体代替膝关节是复杂的且对于患者有负担的手术。因此希望，内置假体可尽可能简单地并且不易受干扰地植入，以避免并发症。
对此，已知一种开头所提及的类型的关节假体，其具有可分叉的轴螺栓(文件EP 1 381 335 B1)。其包括胫骨部件和股骨部件，它们经由联结件铰接地相互连接。形成弯曲关节和旋转关节。弯曲关节允许了膝盖的弯曲和伸展。对此，联结件具有轴眼，由轴端构成的轴螺栓插入其中。轴端设有彼此互补的同轴的凹口，从而可使其沿着其共同的中轴线伸缩式地彼此相向地或彼此远离地运动。为了插入，轴端完全相向运动并且由此位于装配位置中，在装配位置中轴端被拉入联结件中。在联结件装配在配对件、在股骨部件处的铰链叉中之后，使其分叉并且由此膨胀到在铰链叉中相互对齐的孔中。因此，联结件可摆动运动地与股骨部件相连接。该轴螺栓使较容易的装配成为可能，然而在轴端卡住的情况中会导致并发症。
发明内容
本发明目的在于从最后提及的现有技术出发提供一种改进的关节假体，其避免该缺点。
提供一种带有弯曲铰链的关节假体，所述弯曲铰链由铰链叉和轴螺栓形成，所述轴螺栓包括第一轴端和第二轴端，其为了插入布置在被拉入联结件中的装配位置中并且在植入之后通过在轴向上运动到所述铰链叉的对齐的铰链孔中布置在膨胀的位置中，其特征在于，所述轴螺栓在其端部处具有两个轴承区域和处于它们之间的接合区域，并且所述轴螺栓在所述接合区域中分开，使得第一轴端和第二轴端之间的接口是沿着轴向伸延的平面，所述平面在两个部位处与所述轴螺栓的周向表面相交。
在一种带有弯曲铰链的关节假体中，弯曲铰链由铰链叉和轴螺栓形成，轴螺栓包括两个轴端，其为了插入布置在被拉入联结件中的装配位置中并且在植入之后通过在轴向上运动到铰链叉的对齐的铰链孔中布置在膨胀的位置中，根据本发明设置成，轴螺栓在其端部处具有两个轴承区域和处于它们之间的接合区域，并且其在接合区域中沿着在轴向上伸延的平面分开，该平面在两个部位处与轴螺栓的侧面相交。
本发明基于将这两个轴端的接合区域分成两个半轴的构思，亦即借助于沿着中轴线伸延并且在两个部位处与轴螺栓的侧面相交的平面。通常，这是中心平面，这然而不是强制性的。其可由多个子平面组成，然而其在大多数情况中会是连续的。因为其从一侧伸延到另一侧上，其是最宽的、即与在接合区域中轴的直径一样大。因此得到伸过整个直径的平面，沿着该平面以最大宽度来引导这两个轴端。较宽的引导提供有利的摩擦比并且由此避免卡住。因为此外引导平面在至少两个部位与侧面相交，存在用于平衡歪斜的自由度。其显示出相对于带有闭合的大约空心柱状的引导平面(其由于歪斜可倾向于卡锁)的现有技术的显著优点。利用本发明因此不仅在首次植入时而且在可能接下来实现校正时得到显著优点。
优选地，轴端在其接合区域中彼此互补。因此可通过简单的插在一起来实现如其具有传统使用的未分开的轴螺栓那样的外部轮廓。根据本发明的轴螺栓由此可使用在传统的联结件中。当轴端不仅互补而且甚至形状相同时，是特别优选的。在证明了的实施形式中，轴端在接合区域中具有半轴颈(Halbzapfen)。例如，横截面在接合区域中是半月式的。
联结件有利地具有带有用于容纳轴端的接合区域的缺口(Durchbrechung)的分离元件，其中，缺口是非圆的。因此可实现在联结件中这两个轴端的扭转止动(Verdrehsicherung)。因此不再需要特别的例如设计成易于松开的螺栓的扭转止动部。
在联结件处可布置有防移动部(Verschiebesicherung)。它作用到两个轴端上并且将其固定在其分叉位置中。因此不需要如其在现有技术中设置用于分叉的弹簧。在校正的情况中，由此通过简单地移除防移动部可将轴端移动到未分叉的装配位置中，而对此不需要持久地克服分叉弹簧的反作用力。
为了能够在联结件中作用到轴端上，在各个处优选地对于每个轴端设置有接近缝隙(Zugangsschlitz)。它定向成使得它的长形延伸处于轴向上并且具有这样的延伸，其至少如轴端分叉的路程那么大。设置有分叉装置(Spreizinstrument)，其可插入接近缝隙中以移动轴端。适宜地，其夹子式地成形有用于插入接近缝隙中的两个自由端，其中，自由端优选地彼此可处于30度至75度的角度。其可由钢丝件(Drahtstueck)形成，在其后部区域钢丝形成从自由端指离的三点回环(Dreipunktschlaufe)。可将滑套(Schiebehuelse)套到其上，滑套从静止位置(在其中自由端彼此靠近)到达可移动的分叉位置(在其中自由端相对于彼此移离)中。
在分叉装置处可布置有固定引导部(Befestigungsfuehrung)。其实施为套筒，在其中布置有锁止螺栓(Sperrschraube)。适宜地，对此其具有内螺纹，锁止螺栓拧入其中。固定引导部取向成使得其在分叉装置安放到联结件处时对准轴线。优选地，锁止螺栓的长度大于与在固定引导部的联结件侧的端部与轴端的接合区域之间的距离相应的距离。因此保证当轴端被固定在其分叉位置中时才能与固定引导部一起取下分叉装置。
滑套可具有环绕的径向凸缘，其在其执向固定引导部的侧面处具有凹口。因此确保还在分叉装置的弯曲的夹子上的移动以及用于螺丝刀对布置在固定引导部中的锁止螺栓的直的接近路径。
另外，可设置有校正钳(Revisionszange)。其在其后端处具有把手且在其前端处具有容纳指(Aufnahmefinger)，其构造用于插过接近缝隙并且在横截面中是椭圆的。容纳指向前以优选地在5与25度之间的角度叉开。
附图说明
接下来参考附图详细地来阐述本发明，在附图中示出有利的实施例。其中：
图1显示了关节假体的后视图；
图2显示了联结件的透视性的视图；
图3a-c显示了联结件的剖面视图；
图4a-c显示了轴端的详细视图；
图5显示了对分叉装置的俯视图；
图6显示了在带有分叉装置的联结件的剖面中的侧视图；
图7显示了相对于图6的透视性的视图；以及
图8a、b在透视性的视图和详细视图中显示了校正钳。
具体实施方式
根据本发明的一实施例的内置假体按照膝关节内置假体来阐述。膝关节的内置假体主要包括两个部件1、2，其中的一个构造为胫骨部件1而另一个构造为股骨部件2。在股骨部件2中股骨轴承半部21(其具有两个叉状地前突至胫骨部件1的骨节状的滑橇(Gleitkufe)22)联接到杆(Stiel)20处(其被插入患者的大腿骨中)。滑橇支撑在胫骨台(Tibiaplateau)12上，胫骨台布置在胫骨轴承半部11上，胫骨轴承半部经由杆10固定在患者的小腿骨处。
在其之间布置有联结件3，其是T形件,作为主体带有布置在其上部区域中的用于轴螺栓4的容纳孔眼33和用于容纳到在胫骨轴承半部11中的轴承衬套中的轴承销31。
第一轴承(弯曲轴承(Flexionslager))使在部件1与2之间的摆动运动成为可能，即实现在大腿与小腿之间的弯曲运动。围绕轴螺栓4的轴线的该摆动运动因此形成用于膝关节假体的运动的第一轴线。横向于此，销31以其中轴线取向，中轴线对于旋转运动形成第二轴线，股骨件2以该旋转运动相对于胫骨部件1围绕第二轴线旋转。为了该旋转轴承，联结件3的销31伸入轴承衬套中。在它们两个之间布置有轴承插入物(Lagereinsatz)32。
可分叉的轴螺栓4布置在容纳孔眼33中。其具有多个区域，在两端处各一个轴承区域41和在它们之间的接合区域40。其在图3b中示出在其装配位置中，在装配位置中其被拉入容纳孔眼33中，而在图3c中示出在其分叉位置中，在分叉位置中轴承区域41在两侧从容纳孔眼33这里伸出。其通过分离元件30的缺口插在容纳孔眼33中，容纳孔眼33具有展平的椭圆形并且防止轴螺栓4旋转。
在其正面处(在图3a中的图示中左边)联结件3设有平的容纳面35。在其上端处在容纳孔眼33中成形有袋36，其在其基面处过渡到容纳面34中。在容纳面34的中间区域中设置有保持开口35，其实施为盲孔。防撞板37可安放到容纳面34上并且插入袋36中。由此，袋36以其上棱边防止从容纳面34抬起，亦即在到达弯曲轴承的伸延的止挡位置时还在从前面(在图3a中从左边)的力作用下。防撞板37借助于在其背面处成形的突起(其形状配合地接合到保持开口35中)防止尤其向下移动。
轴螺栓4在接合区域40中具有纵向于其中轴线伸延的分开平面49。其在接合区域40中在两个在直径上相对而置的部位(参见图3a)处与侧面相交。轴螺栓4由此分成两个轴端42、43。两者具有伸出的半轴颈44、45，其组合地在接合区域40中形成轴螺栓4的横截面。
另外，这两个轴端42、43中的每个具有半月形的凹部46、47。其与半轴颈44、45互补地成型，使得它们在轴端插在一起时(对于装配位置，如在图3b中所示)侵入凹部46、47中。在分叉的位置中，半轴颈44、45从凹部46、47中移出，其中，其通过较宽的分开平面49可靠地来引导。由于在平的平面中该较宽的引导，在分叉时既不引起卡住又不引起歪斜；相同的适用于在膝关节假体的校正的情况中的插在一起。轴端42、43的结构详细地在图4中示出。其此外在其侧面处具有促动器开口48，其构造用于容纳分叉装置5。优选地，每个轴端设置有两个促动器开口48，亦即对称于分开平面49。相应地使用一个，亦即视安装位置而定。在所示出的实施例中，轴端42、43形状相同，也就是说是相同的元件不仅可被用作轴端42而且可被用作轴端43。
为了引起轴端42、43的分叉，在容纳孔眼33处构造有两个接近缝隙38。其在与其长形延伸的方向对齐的线上在轴螺栓4的中轴线的方向上取向。在其之上且在它们中间设置有固定开口39。通过接近缝隙38可插入尖的装置，其接合到这两个促动器开口48中的一个中。通过向外移动该装置，使轴端42从另一轴端离开，并且反之亦然。
对此所使用的分叉装置在图5和6中详细地示出。其在其前端处包括带有两个自由端51(其以角度α分叉)的钢丝夹50。其在其后部区域中形成三点回环(滑套54套到其上)。其在其背对端部51的侧面上具有径向地伸出的凸缘56，其设有凹口55。滑套54在其分叉位置之间(如在图5中所示)可向前移动到静止位置中，由此自由端51压到其靠近地处于一起的位置中。对此，需要一定的调节力，使得滑套54作为防止无意移动的保险起作用。凹口55保证凸缘56在移动时不与钢丝夹50碰撞。此外，其负责对固定套筒60的无阻碍的直的接近。
固定套筒60是固定引导部6的部分，其布置在钢丝夹50的端部处。固定套筒在其内部开口61中具有内螺纹62，锁止螺栓63拧入其中。在静止位置中，锁止螺栓63仅勉强地以其尖部64伸出，亦即到该程度使得其以其螺纹咬到开口39中并且固定引导部由此固定在联结件3处。
在装配时为了使轴螺栓4分叉将滑套5向后移动，由此使通过接近缝隙38插到轴端42、43的促动器开口48中的自由端51彼此移离其由此轴端42、43彼此叉开。如果其到达其分叉的位置(参见图3c和7)，则将锁止螺栓63进一步旋入，直到其以其尖部进入分开平面49中并且轴端42、43通过夹紧且在存在相应的容纳开口49'的情况下甚至形状配合地固定。如果锁止螺栓63足够远地旋入，其不再与内螺纹62相接合。固定引导部6因此是自由的，并且那么才可取下分叉装置5。因此保证当轴端42、43叉开时那么才可取下分叉装置。
在校正时需要将轴端42、43从分叉的位置(参见图3c)又移回到装配位置中(参见图3b)。对此，校正钳7设置有在后端中的把手70和在前端处在钳口71处的容纳指70(参见图8)。容纳指具有这样的尺寸，使得其可被插过接近缝隙38并且与促动器开口48相接合。优选地，容纳指72收拢地布置。这意味着，其指向彼此地取向，以及围绕大约10度的角度ß。该角度被选择成使得当轴端42、43到达其装配位置(参见图3b)时容纳指72在校正钳7的位置中大约平行以便更简单地取下。

Claims (18)

1.一种带有弯曲铰链的关节假体，所述弯曲铰链由铰链叉和轴螺栓(4)形成，所述轴螺栓(4)包括第一轴端(42)和第二轴端(43)，第一轴端(42)和第二轴端(43)为了插入布置在被拉入联结件(3)中的装配位置中并且在植入之后通过在轴向上运动到所述铰链叉的对齐的铰链孔中布置在膨胀的位置中，
其特征在于，
所述轴螺栓(4)在其端部处具有两个轴承区域(41)和处于它们之间的接合区域(40)，并且所述轴螺栓(4)在所述接合区域(40)中分开，使得第一轴端和第二轴端之间的接合区域(40)是沿着轴向伸延且在两个位置处与所述轴螺栓(4)的周向表面相交的平面。
2.根据权利要求1所述的关节假体，其特征在于，所述平面(49)是所述轴螺栓(4)的中心平面。
3.根据权利要求1所述的关节假体，其特征在于，所述平面(49)包括多个子平面。
4.根据权利要求1至3中任一项所述的关节假体，其特征在于，所述第一轴端(42)和第二轴端(43)形状相同。
5.根据权利要求1至3中任一项所述的关节假体，其特征在于，所述第一轴端(42)和第二轴端(43)的接合区域(40)是半轴颈(44,45)。
6.根据权利要求1至3中任一项所述的关节假体，其特征在于，所述第一轴端(42)和第二轴端(43)在横截面中半月形地来构造。
7.根据权利要求1至3中任一项所述的关节假体，其特征在于，所述联结件(3)在它的确定用于容纳所述接合区域(40)的区域中具有带有用于所述第一轴端(42)和第二轴端(43)的非圆的缺口的分离元件(30)。
8.根据权利要求1至3中任一项所述的关节假体，其特征在于，在所述联结件(3)处构造有用于所述第一轴端(42)和第二轴端(43)的防移动部的容纳部。
9.根据权利要求1所述的关节假体，其特征在于，在所述联结件(3)处对于第一轴端(42)和第二轴端(43)中的每个构造有接近缝隙(38)，并且设置有分叉装置(5)，其构造用于通过所述接近缝隙(38)接合到所述第一轴端(42)和第二轴端(43)中。
10.根据权利要求9所述的关节假体，其特征在于，所述分叉装置(5)具有钢丝夹(50)，钢丝夹的自由端(51)构造用于插入所述接近缝隙(38)中。
11.根据权利要求10的关节假体，其特征在于，设置有滑套(54)，其能够从所述自由端(51)彼此靠近的静止位置移动到所述自由端(51)彼此移离的分叉位置中。
12.根据权利要求11所述的关节假体，其特征在于，所述分叉装置(5)具有固定引导部(6)。
13.根据权利要求12所述的关节假体，其特征在于，在所述固定引导部(6)处布置有螺纹(62)，锁止螺栓(63)拧入所述螺纹(62)中。
14.根据权利要求13所述的关节假体，其特征在于，所述锁止螺栓(63)的长度大于固定引导部(6)与所述轴螺栓(4)之间的距离。
15.根据权利要求12至14中任一项所述的关节假体，其特征在于，所述滑套(54)具有环绕的径向凸缘(56)，所述径向凸缘(56)在径向凸缘的指向所述固定引导部的侧面处具有凹口(55)。
16.根据权利要求9至14中任一项所述的关节假体，其特征在于，设置有校正钳(7)，其在其后端处具有把手(70)而在其前端处具有容纳指(71)，所述容纳指(71)构造用于插入所述接近缝隙(38)中并且在横截面中是椭圆的。
17.根据权利要求10所述的关节假体，其特征在于，所述自由端(51)彼此处于30度至70度的角度中。
18.根据权利要求17所述的关节假体，其特征在于，所述钢丝夹在钢丝夹的从自由端(51)指离的后部区域中形成回环。
CN201280019418.6A 2011-04-20 2012-04-19 具有带有分叉轴的弯曲铰链的关节假体 Active CN103648441B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11163204.8 2011-04-20
EP11163204A EP2514391A1 (de) 2011-04-20 2011-04-20 Gelenkprothese mit einem Beugescharnier mit Spreizachse
PCT/EP2012/057165 WO2012143445A1 (de) 2011-04-20 2012-04-19 Gelenkprothese mit einem beugescharnier mit spreizachse

Publications (2)

Publication Number Publication Date
CN103648441A CN103648441A (zh) 2014-03-19
CN103648441B true CN103648441B (zh) 2016-08-17

Family

ID=44358079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201280019418.6A Active CN103648441B (zh) 2011-04-20 2012-04-19 具有带有分叉轴的弯曲铰链的关节假体

Country Status (19)

Country Link
US (1) US9283081B2 (zh)
EP (2) EP2514391A1 (zh)
JP (1) JP6028247B2 (zh)
KR (1) KR101858784B1 (zh)
CN (1) CN103648441B (zh)
AU (1) AU2012244703B2 (zh)
BR (1) BR112013026887B1 (zh)
CA (1) CA2833297C (zh)
CL (1) CL2013003026A1 (zh)
CO (1) CO6852036A2 (zh)
ES (1) ES2559286T3 (zh)
HU (1) HUE026547T2 (zh)
IL (1) IL228884A (zh)
MX (1) MX337963B (zh)
PL (1) PL2699203T3 (zh)
RU (1) RU2592659C2 (zh)
UA (1) UA109816C2 (zh)
WO (1) WO2012143445A1 (zh)
ZA (1) ZA201308578B (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2514391A1 (de) * 2011-04-20 2012-10-24 Deru GmbH Gelenkprothese mit einem Beugescharnier mit Spreizachse
US10548735B2 (en) 2015-08-06 2020-02-04 Howmedica Osteonics Corp. Modular hinge knee prosthesis and improvements of same
US10722372B2 (en) 2016-07-05 2020-07-28 Howmedica Osteonics Corp. Hinge knee preparation instrumentation and associated methods
US20190015115A1 (en) 2017-07-14 2019-01-17 DePuy Synthes Products, Inc. System and method for an orthopaedic joint replacement procedure
RU179634U1 (ru) * 2017-10-06 2018-05-21 Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Новосибирский Государственный Технический Университет" Эндопротез коленного сустава
CN114072087A (zh) 2019-05-02 2022-02-18 德普伊爱尔兰无限公司 整形外科植入物放置系统和方法
EP3965698A4 (en) * 2019-05-08 2023-01-25 DePuy Ireland Unlimited Company ORTHOPEDIC IMPLANT SYSTEM WITH HINGE
AU2021304903A1 (en) 2020-07-10 2023-03-09 Depuy Ireland Unlimited Company Medial stabilized orthopaedic knee prosthesis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122390A1 (de) * 1971-05-06 1973-01-04 Aesculap Werke Ag Kniegelenk-endoprothese
US3934272A (en) * 1974-11-19 1976-01-27 The University Of Melbourne Knee prosthesis
CN1087506A (zh) * 1992-06-19 1994-06-08 蒙彼利埃·彻尤吉责任有限公司 人造膝关节
FR2793677A1 (fr) * 1999-05-18 2000-11-24 Depuy France Prothese totale de genou a charniere et manchon de comblement osseux
CN101095631A (zh) * 2006-06-30 2008-01-02 德普伊产品公司 铰接的整形外科假体

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696817A (en) * 1952-04-30 1954-12-14 Samuel B Prevo Prosthetic elbow joint
US3990117A (en) * 1975-01-22 1976-11-09 Pritchard Rowland W Elbow joint prosthesis
US4262368A (en) * 1979-09-24 1981-04-21 Wright Manufacturing Company Rotating and hinged knee prosthesis
US5370701A (en) * 1990-09-28 1994-12-06 Arch Development Corporation Rotating/sliding contrained prosthetic knee
RU2051647C1 (ru) * 1992-03-16 1996-01-10 Владимир Моисеевич Цодыкс Эндопротез коленного сустава и способ его сборки
US5314481A (en) * 1992-11-12 1994-05-24 Wright Medical Technology, Inc. Hinged knee prosthesis with extended patellar track
RU2123824C1 (ru) * 1994-10-21 1998-12-27 Товарищество с ограниченной ответственностью Научно-производственное предприятие "Феникс" Эндопротез коленного сустава
DE19606462C1 (de) * 1996-02-21 1997-10-16 Plus Endoprothetik Ag Kniegelenkendoprothese
DE69822266T2 (de) * 1997-11-03 2005-02-24 DePuy Orthopaedics, Inc., Warsaw Modulare Ellenbogenprothese
US10231839B2 (en) * 2000-07-18 2019-03-19 Encore Medical, L.P. Elbow prosthesis
US8932362B2 (en) * 2000-07-18 2015-01-13 Biomet Manufacturing, Llc Elbow prosthesis
US8998995B2 (en) * 2000-07-18 2015-04-07 Biomet Manufacturing, Llc Elbow prosthesis
US6719800B2 (en) * 2001-01-29 2004-04-13 Zimmer Technology, Inc. Constrained prosthetic knee with rotating bearing
EP1252870A1 (de) * 2001-04-25 2002-10-30 Waldemar Link (GmbH & Co.) Knieprothese mit einem Beugescharnier
ATE337760T1 (de) * 2001-12-21 2006-09-15 Smith & Nephew Inc Drehbares gelenksystem
FR2855397B1 (fr) * 2003-05-28 2005-07-15 Tornier Sa Prothese de coude
US7449028B2 (en) * 2004-10-29 2008-11-11 Depuy Products, Inc. Modular total elbow prosthesis, humeral component and associated kit
US8562616B2 (en) * 2007-10-10 2013-10-22 Biomet Manufacturing, Llc Knee joint prosthesis system and method for implantation
US8328873B2 (en) * 2007-01-10 2012-12-11 Biomet Manufacturing Corp. Knee joint prosthesis system and method for implantation
US8157869B2 (en) * 2007-01-10 2012-04-17 Biomet Manufacturing Corp. Knee joint prosthesis system and method for implantation
US7918893B2 (en) * 2007-09-30 2011-04-05 Depuy Products, Inc. Hinged orthopaedic prosthesis
WO2011060430A2 (en) * 2009-11-16 2011-05-19 New York Society For The Ruptured And Crippled Maintaining The Hospital For Special Surgery Elbow replacement apparatus and methods
EP2514391A1 (de) * 2011-04-20 2012-10-24 Deru GmbH Gelenkprothese mit einem Beugescharnier mit Spreizachse
CA2866633A1 (en) * 2011-04-21 2012-10-26 Signal Medical Corporation Implant with multi-directional pivoting
EP2535020A1 (de) * 2011-06-16 2012-12-19 Deru GmbH Rotationsgelenkprothesen mit verstärkter Lagerbuchse
US9072606B2 (en) * 2012-07-17 2015-07-07 Clemson University Research Foundation Lockable knee implants and related methods
US9039779B2 (en) * 2013-03-13 2015-05-26 Biomet Manufacturing, Llc Adjustable lateral articulating condyle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122390A1 (de) * 1971-05-06 1973-01-04 Aesculap Werke Ag Kniegelenk-endoprothese
US3934272A (en) * 1974-11-19 1976-01-27 The University Of Melbourne Knee prosthesis
CN1087506A (zh) * 1992-06-19 1994-06-08 蒙彼利埃·彻尤吉责任有限公司 人造膝关节
FR2793677A1 (fr) * 1999-05-18 2000-11-24 Depuy France Prothese totale de genou a charniere et manchon de comblement osseux
CN101095631A (zh) * 2006-06-30 2008-01-02 德普伊产品公司 铰接的整形外科假体

Also Published As

Publication number Publication date
EP2514391A1 (de) 2012-10-24
CN103648441A (zh) 2014-03-19
JP6028247B2 (ja) 2016-11-16
JP2014519864A (ja) 2014-08-21
MX2013012059A (es) 2014-01-20
WO2012143445A1 (de) 2012-10-26
HUE026547T2 (hu) 2016-06-28
ES2559286T3 (es) 2016-02-11
UA109816C2 (uk) 2015-10-12
US20140039635A1 (en) 2014-02-06
RU2592659C2 (ru) 2016-07-27
AU2012244703B2 (en) 2016-09-08
CO6852036A2 (es) 2014-01-30
IL228884A0 (en) 2013-12-31
CL2013003026A1 (es) 2014-08-29
BR112013026887B1 (pt) 2020-10-27
EP2699203A1 (de) 2014-02-26
KR20140024387A (ko) 2014-02-28
AU2012244703A1 (en) 2013-11-07
US9283081B2 (en) 2016-03-15
MX337963B (es) 2016-03-29
IL228884A (en) 2016-10-31
CA2833297A1 (en) 2012-10-26
PL2699203T3 (pl) 2016-04-29
CA2833297C (en) 2019-02-12
EP2699203B1 (de) 2015-10-28
ZA201308578B (en) 2014-07-30
RU2013150521A (ru) 2015-06-27
KR101858784B1 (ko) 2018-05-16

Similar Documents

Publication Publication Date Title
CN103648441B (zh) 具有带有分叉轴的弯曲铰链的关节假体
US7927337B2 (en) Bone separator
EP2685938B1 (en) System for bone anchor removal
CN101631505B (zh) 用于载荷控制的带有筒体和端盖的髋部骨折用装置
EP2104474B1 (en) Knee joint prosthesis system
US20140207123A1 (en) Knockout Tool for Minimally Invasive Prosthesis Revision
AU743554B2 (en) Joint (knee joint)
JP2009502425A5 (zh)
JP5963782B2 (ja) 外科クリップアプリケータ
CN104602648A (zh) 肘假体
US8926621B2 (en) Surgical instrument for acetabular cup implantation
CN106802492A (zh) 用于眼镜框架的弹性铰链及其组装程序
EP2837336A3 (en) Surgical operation instrument with passively rotatable clamping portion
CN106061414A (zh) 微外科保持和/或切割器械
CN103930070B (zh) 带有强化的支承套的旋转关节假体
US20100280556A1 (en) Device for Fixation of Bone Fragments at Bone Fractures
CN212650902U (zh) 一种骨科复位装置
US10473144B2 (en) Bent tubular shaft and method for producing the same
KR20180064484A (ko) 무릎 관절의 적어도 일부를 대체하기 위한 무릎 관내인공삽입물
PL214658B1 (pl) Stabilizator kości łonowych

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20151211

Address after: hamburg

Applicant after: Waldemar Link GmbH & Co. KG

Address before: German Nodes Tate

Applicant before: Deru GmbH

C14 Grant of patent or utility model
GR01 Patent grant