WO2004080354A1 - Articulation coxofemorale artificielle sans tige - Google Patents

Articulation coxofemorale artificielle sans tige Download PDF

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Publication number
WO2004080354A1
WO2004080354A1 PCT/CN2004/000206 CN2004000206W WO2004080354A1 WO 2004080354 A1 WO2004080354 A1 WO 2004080354A1 CN 2004000206 W CN2004000206 W CN 2004000206W WO 2004080354 A1 WO2004080354 A1 WO 2004080354A1
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WO
WIPO (PCT)
Prior art keywords
bone
femoral
sleeve
femur
femoral neck
Prior art date
Application number
PCT/CN2004/000206
Other languages
English (en)
French (fr)
Inventor
Poonung Chieng
Original Assignee
Poonung Chieng
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 Poonung Chieng filed Critical Poonung Chieng
Priority to US10/549,255 priority Critical patent/US20060217720A1/en
Publication of WO2004080354A1 publication Critical patent/WO2004080354A1/zh

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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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3601—Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
    • 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
    • A61F2/32—Joints for the hip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0801—Prevention of accidental cutting or pricking
    • A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
    • 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
    • A61F2002/30574—Special structural features of bone or joint prostheses not otherwise provided for with an integral complete or partial collar or flange
    • 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
    • A61F2002/30787—Plurality of holes inclined obliquely with respect to each other
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3611—Heads or epiphyseal parts of femur
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/365—Connections of heads to necks

Definitions

  • the present invention relates to a device for joining a femoral head damaged or broken due to a disease, and particularly to a handleless artificial hip joint device. Background technique
  • the prior art generally resets the fracture, and then covers it with a plate-shaped steel, and then inserts and fixes the femoral bone with two nails.
  • this traditional structure has a fixed package in addition to In addition to covering the disadvantages of instability, it is impossible to effectively cover the steel with newly-grown blood vessels and epiphyses, so that the plate-shaped steel cannot be completely integrated with the femur and protected, which in turn causes the fractured femur and
  • the coated steel has the disadvantages of limited strength and easy separation, which greatly reduces the practicality and increases the suffering of patients.
  • femoral neck protection device Although a hollow cylinder is sleeved on the femoral neck to protect the femoral neck, the hollow cylinder is fixed on the femoral neck only by a screw passing through the center. For younger people with better bone quality, the effect of metallurgy is quite good, but for the elderly and osteoporosis patients, the center screw occasionally loosens. At the same time, this femoral neck protection device does not have any device to protect the femoral shaft, such as poor bone quality of the femur or osteoporosis, it will slow down the rate of recovery. Summary of the invention The technical problem to be solved is to provide a shankless artificial hip joint device, which can strengthen and fix the femoral neck protection device and increase the strength of the femoral neck itself, and can be integrated with the femur.
  • the present invention provides a handleless artificial hip joint device.
  • the device is provided with a reinforced bone plate.
  • the reinforced bone plate is sleeved with a reinforced bone nail, and the reinforced bone nail and the central bone nail are interlocked with each other.
  • the central bone nail is also connected with a femoral neck protection device.
  • the femoral neck protection device can be sleeved on the femoral neck from which the diseased part of the femoral head has been removed or the damaged part, and it will be strengthened at the same time.
  • the bone plate is fixed on the femoral shaft, and then the reinforcing bone nail is deepened into the femur, and is locked with a central bone nail, and the other end of the central nail is sleeved on a femoral neck protection device.
  • the protection device can be closely fitted to the femoral surface, and then the femoral head after the lesion of the femoral head has been removed, or the damaged part of the femoral head can be completely protected, and the bone quality can be reduced.
  • the femoral neck is strengthened by the bone plate to increase its strength and stability.
  • the invention also provides a handleless artificial hip joint device.
  • the femoral neck protection device is provided with a hollow sleeve inside. One end of the sleeve is provided with an outwardly extending flange, and the other end is provided with a convex extension.
  • the neck is provided with a bolt penetrating the sleeve, and the sleeve and the flange are provided with at least one hole. In use, the damaged or damaged femoral head or femoral neck can be cut by a scalpel first.
  • the top bolt locks the sleeve to the femoral neck connected to the injured bone.
  • FIG. 1 is an exploded perspective view of the present invention.
  • Fig. 2 is a schematic perspective view of the present invention.
  • Fig. 3 is a schematic sectional view when the present invention is combined.
  • Femoral neck protection device 40 DETAILED DESCRIPTION
  • the present invention provides a handleless artificial hip joint device.
  • the device is provided with a reinforced bone plate 10, and the reinforced bone plate 10 is provided with more than one perforation 11.
  • a fixing member 12 is put on each of the sleeves 11, and the fixing members in this embodiment are screws.
  • the reinforcing bone plate 10 is provided with an opening 13 at a certain position, and a reinforcing bone screw 20 is sleeved in the opening 13.
  • the reinforcing bone screw 20 described in this embodiment is a sleeve, and the reinforcing bone One end of the nail 20 is provided with a head 21 having an area larger than that of the opening 13 so that the reinforcing bone nail 20 does not sink into the opening 13 when the reinforcing bone nail 20 penetrates into the opening 13, and the reinforcing bone nail 20 is provided with an internal thread.
  • a central bone screw 30 can be screwed on the internal thread, and the central bone screw 30 is provided with external threads 31 on the periphery, so that the other end of the central bone screw 30 can be connected with a femoral neck protection device 40.
  • the reinforcing bone plate 10 is abutted on the femoral shaft, and then the fixing member 12 is sleeved on the perforation 11 of the reinforcing bone plate 10 and fixed in the femur.
  • the reinforcing bone nail 20 passes through the opening 13 and penetrates into the femur.
  • the central bone screw 30 is screwed together, and the other end of the central bone screw 30 is sleeved on a femoral neck protection device 40. These can be fixed tightly to the femur by fixing the central bone screw 30.
  • the femoral neck protection device 40 is a device capable of stably and firmly covering the broken femoral neck, and can be integrated with newly-grown blood vessels and epiphyses.
  • the device is provided with a hollow inner portion.
  • Sleeve 41, a flange 42 extending outward and slightly curved is provided on the periphery of one end of the sleeve 41.
  • the flange is triangular, and the other end of the sleeve 41 protrudes from The neck 43 is inwardly constricted, and the central bone nail 30 can be nested in the neck 43.
  • the sleeve 41 and the flange 42 are provided with at least one hole 44, and the hole 44 can be fixed by a sleeve.
  • the fixing piece 45 is a steel nail (those skilled in the art may substitute other components).
  • the flange 42 is closely attached to the surface where the femur is connected to the femoral head.
  • a fixing member 45 can be further fixed on the femur 30 through the hole 44 so that the femur 30 can be strengthened and fixed when it is connected with the femoral acetabulum (not shown).
  • the femoral neck protection device 40 can be opened by the hole 44 so that newly-grown blood vessels and epiphyses can pass through the hole 44 and cover the flange 42 and the sleeve 41, so as to be able to communicate with the femoral neck and femur.
  • an end of the neck 43 remote from the sleeve 41 is provided with an adjustable joint head 50 that can be combined with the central bone screw 30.
  • the adjustable joint 50 is covered with an acetabular cup 60, and the acetabular cup 60 includes a plastic inner liner 61, and the plastic inner liner 61 is sleeved with a metal acetabular cup 62 matched with the shape so that the hip joint connected to the femur can move freely.

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  • 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)
  • Surgical Instruments (AREA)

Description

无柄人工髋关节装置 技术领域
本发明涉及一种将因病受损或断裂的股骨头接合的装置， 尤其涉 及一种无柄人工髋关节装置。 背景技术
对于断裂股骨颈的接合方式， 现有技术一般是将断裂处复位， 然 后再以一板状钢材覆盖， 再以二钉体打入股骨内并使之固定， 但这种传 统结构除了具有固定包覆上不稳定的缺点外， 更有无法令新长出的血管 与骨痂有效地将钢材包覆， 因此造成板状钢材无法完全与股骨结合成一 体并受到保护， 进而造成该断裂之股骨与包覆之钢材承受力量有限且有 容易分离的缺点， 在实用性上大打折扣， 增加患者的痛苦， 这种种缺点， 长久以来， 一直困扰着医疗业者及患者。
而另一种股骨颈保护装置， 虽是在股骨颈上套合一中空筒体， 以保 护股骨颈， 但该中空筒体仅凭借一由中心穿套而过的螺杆固定在股骨颈 上， 这样， 针对年青骨质较佳者， 冶疗效果颇佳， 然而针对年长及骨质 疏松症患者， 该中心螺杆偶尔会发生松动的现象。 同时， 这种股骨颈保 护装置并无任何保护股骨干的装置， 如股骨的骨质不佳或犯有骨质疏松 症， 则会使复原的速度减缓。 发明内容 本实有新型所要解决的技术问题是提供一种无柄人工髋关节装置， 该装置可加强固定股骨颈保护装置， 以及增加股骨颈本身强度， 且可与 股骨结合成一体。
为了解决上述技术问题， 本发明提供一种无柄人工髋关节装置， 该装置上设有一加强骨板， 该加强骨板穿套有一加强骨钉， 该加强骨钉 与中心骨钉互相锁合， 且该中心骨钉还与一股骨颈保护装置相连接在一 起， 使用时， 可先将股骨颈保护装置套合在已切除了股骨头病变部分或 已受伤毁损部分的股骨颈上， 同时将加强骨板固定在股骨干上， 再将加 强骨钉深入股骨中， 而与一中心骨钉锁合在一起， 该中心骨钉另一端则 穿套在一股骨颈保护装置上。
这样凭借中心骨钉的固定， 使该保护装置可紧密贴合在股骨表面 上， 进而可完全保护已切除了股骨头病变后， 或已受损部分的股骨头， 且可使骨质不佳的股骨颈在加强骨板支撑下， 增加本身的强度及稳定 性。
本发明还提供一种无柄人工髋关节装置， 该股骨颈保护装置上设 有一内呈中空状的套筒， 该套筒一端周缘设有一向外延伸的凸缘， 另一 端则设有一凸伸的颈部， 该颈部中设有贯穿套筒的螺栓， 且该套筒及凸 缘上设有至少一孔洞， 使用时， 可先将已受伤毁损的股骨头或股骨颈借 由手术刀切削成恰可套合在该套筒内的形状， 使套筒恰可套合在该经切 削后的股骨颈上， 并使该套筒凸缘可紧密贴合在股骨表面上， 再借由在 顶部的螺栓将套筒锁合在与受伤骨头连接的股骨颈上。
这样可保护该股骨颈不致再受到伤害， 且可使股骨及股骨颈新长出 之血管及痂疤可穿过孔洞， 而覆盖在本体上， 进而使本体可与股骨结合 成一体。 附图说明
图 1是本发明的立体分解示意图。
图 2是本发明的立体示意图。
图 3是本发明组合时的断面示意图。
主要元件的标号说明：
加强骨板 10
穿孔 11
固定件 12
开孔 13
加强骨钉 20
中心骨钉 30
股骨颈保护装置 40 具体实施方式
为使能对本发明的形状构造装置特征及其功效， 作更进一步的认识 与了解， 下面结合附图举一具体实施例详细说明如下：
请参阅图 1、 2、 3 所示： 本发明提供一种无柄人工髋关节装置， 该装置上设有一加强骨板 10，该加强骨板 10上设有一个以上的穿孔 11， 该等穿孔 11上分别穿套有一固定件 12， 本实施例中所述固定件为螺钉， 且该加强骨板 10在一定位置上设有一开孔 13， 且该开孔 13 中穿套一 加强骨钉 20， 在本实施例中所述的加强骨钉 20为一套筒， 该加强骨钉 20一端设有面积大于开孔 13面积的头部 21， 以使加强骨钉 20穿入开 孔 13中时， 不致没入开孔 13中， 且该加强骨钉 20内设有内螺纹， 该 内螺纹上可螺合一中心骨钉 30， 该中心骨钉 30周边设有外螺紋 31， 可 使该中心骨钉 30另一端与一股骨颈保护装置 40相连接在一起，使用时， 可先将加强骨板 10贴靠在股骨干上， 再将固定件 12穿套在加强骨板 10 的穿孔 11中， 并固定在股骨中， 加强骨钉 20穿过开孔 13深入股骨中， 与一中心骨钉 30螺合在一起， 该中心骨钉 30另一端则穿套在一股骨颈 保护装置 40， 这们， 可通过中心骨钉 30 的固定， 使该保护装置 40可 紧密贴合在股骨表面上， 进而可完全保护已切除了股骨头病变后的或已 受损的股骨颈， 且可使骨质不佳的股骨在加强骨板 10 支撑下， 增加本 身之强度及稳定性， 使该股骨颈保护装置 40 不致于在运动或负重时产 生挤压、 及挤压时所产生之压力下发生松动。
另外， 该股骨颈保护装置 40是一种可使断裂的股骨颈稳固牢靠包 覆固定， 且可与新长出的血管及骨痂结合成一体的装置， 该装置上设有 一内呈中空状的套筒 41 , 该套筒 41 的一端周边设有一向外延伸且略呈 弧曲状的凸缘 42， 在本实施例中该凸缘呈三角状， 且该套筒 41 的另一 端凸伸有一向内縮合的颈部 43， 该颈部 43中恰可嵌套中心骨钉 30， 进 一步， 该套筒 41与凸缘 42设有至少一个以上的孔洞 44, 该孔洞 44中 可穿套一固定件 45， 在本实施例中该固定件 45为一钢钉 （熟悉该项技 术者， 仍可以其它元件加以取代）。 使用时， 请参照图 3所示， 先用手术刀将受损的股骨头或股骨颈 切削处理成与套筒 41配合的形状， 再将套筒 41套合在已经切削过的股 骨头上， 并使凸缘 42 紧贴在股骨与股骨头相连接的表面上， 如此， 不 但可使该保护装置 40稳固牢靠套合在断裂的股骨颈上， 且可凭借套筒 41 的保护， 使该股骨颈免于再次受到伤害， 另外， 进一步可通过穿过 孔洞 44而固定在股骨 30上的固定件 45，使该股骨 30在与股骨髋臼（图 中未示） 相连接时可加强固定。
进一步， 该股骨颈保护装置 40更可凭借孔洞 44的开设， 使新长 出的血管及骨痂可穿过孔洞 44， 而覆盖在凸缘 42及套筒 41上， 进而 可与股骨颈及股骨结合成一体； 此外， 该颈部 43远离套筒 41的一端设 有可与中心骨钉 30结合的可调关节头 50， 该可调关节 50上包覆有髋 臼杯 60， 该髋臼杯 60包括塑料内衬 61， 该塑料内衬 61上套合有形状 与之配合的金属制髋臼杯 62， 这样可使与该股骨相接的髋关节活动自 如。

Claims

权利要求书 、 一种 ¾柄人工髋关节装置， 其特征在于， 包括：
一用于支撑股骨的加强骨板， 该加强骨板上设有一个以上的穿孔， 该多个穿孔上分别穿套有一可将加强骨板固定在股骨干表面的固定 件；
一穿套在加强骨板上并穿套在股骨中的加强骨钉；
一与加强骨钉互相螺合的中心骨钉， 该中心骨钉的另一端则凸露在 股骨颈上；
一用来保护股骨颈的股骨颈保护装置， 该股骨颈保护装置与中心骨 钉未与楞强骨钉螺合在一起的另一端穿套固定在一起。
、 根据权利要求 1 所述的无柄人工髋关节装置， 其特征在于， 所述的 固定件为螺钉。
、 根据权利要求 1 所述的无柄人工髋关节装置， 其特征在于， 所述的 股骨颈保护装置设有一内呈中空状的套筒， 该套筒的一端周边设有 一向外延伸且略呈弧曲状的凸缘， 所述套筒的另一端凸伸有一向内 缩合的颈部， 该颈部可恰好嵌套中心骨钉， 所述的套筒凸缘设有至 少一个以上的孔洞。
PCT/CN2004/000206 2003-03-13 2004-03-15 Articulation coxofemorale artificielle sans tige WO2004080354A1 (fr)

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