CN107647945A - Elbow joint prosthese - Google Patents

Elbow joint prosthese Download PDF

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Publication number
CN107647945A
CN107647945A CN201710959134.XA CN201710959134A CN107647945A CN 107647945 A CN107647945 A CN 107647945A CN 201710959134 A CN201710959134 A CN 201710959134A CN 107647945 A CN107647945 A CN 107647945A
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CN
China
Prior art keywords
humerus
artificial body
ulnar prosthesis
elbow joint
prosthesis
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.)
Granted
Application number
CN201710959134.XA
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Chinese (zh)
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CN107647945B (en
Inventor
刘昆玺
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Beijing AK Medical Co Ltd
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Beijing AK Medical Co Ltd
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Priority to CN201710959134.XA priority Critical patent/CN107647945B/en
Publication of CN107647945A publication Critical patent/CN107647945A/en
Application granted granted Critical
Publication of CN107647945B publication Critical patent/CN107647945B/en
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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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4605—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of elbows
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4614—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of plugs for sealing a cement-receiving space
    • 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
    • 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
    • A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting 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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • A61F2002/3822—Humeral components
    • 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
    • A61F2/3804—Joints for elbows or knees for elbows
    • A61F2002/3831—Ulnar components

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physical Education & Sports Medicine (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

The invention provides a kind of elbow joint prosthese, including：Artificial body of the humerus and ulnar prosthesis, artificial body of the humerus and ulnar prosthesis are hinged；Wherein, strip ridge is provided with the side wall of artificial body of the humerus and ulnar prosthesis, to make artificial body of the humerus engage and fix with the inwall of medullary cavity of humerus by strip ridge thereon when artificial body of the humerus is implanted into medullary cavity of humerus, and ulnar prosthesis is set to engage and fix with the inwall of ulna pulp cavity by strip ridge thereon when ulnar prosthesis is implanted into ulna pulp cavity.So as to which the stability of prosthese fixation at initial stage can be greatly promoted in arthroplasty of elbow, so as to ensure the fixed effect in long term, the service life of prosthese is improved.Solve the problems, such as that the mechanical stability maintenance at elbow joint prosthese initial stage of the prior art is bad.

Description

Elbow joint prosthese
Technical field
The present invention relates to area of medical devices, in particular to a kind of elbow joint prosthese.
Background technology
The chance that inflammation invades elbow joint is relatively fewer, once but elbow joint inflammation, the function of upper limbs can be influenceed.And elbow Arthroplasty is to treat a kind of effective way of elbow joint inflammation.At present, arthroplasty of elbow has huge development, conforms to the principle of simplicity Single anatomical form elbow joint prosthese to complexity.With the operation of other Endoprostheses, infection and prosthetic loosening are that elbow closes The main reason for saving the failure of plasty prosthese, thus stability of the prosthese in human body be influence prosthese service life it is important because Element.
At present, prosthese fixed mode has two kinds of cement reaction and biological fixation in clinic, and biological fixation can retain pine Matter bone, reduce the destruction to pulp cavity, so being welcome by clinician.
It is exactly by bone tissue and prosthetic surface coarse structure (such as titanium slurry sprays) that elbow joint prosthese bion, which is fixed, Integrate, reach fixed purpose.But effective Integrated implant needs the long period, belongs to fixed mode at a specified future date.Initial stage is fixed more Belong to and be mechanically fixed, be exactly to be directly affected far using the structure and the temporary transient fixation of New bone formation, the fixed effect at initial stage of prosthese The fixed effect of phase.Current fixed position at initial stage can all change after prosthese stress, then not advising due to pulp cavity shape Then property, local fixation can only be realized, so being that initial stability after Using prosthesis can not obtain very the shortcomings that prior art Good guarantee, hidden danger is left for prosthese at a specified future date failure.
The content of the invention
It is a primary object of the present invention to provide a kind of elbow joint prosthese, at the beginning of solving elbow joint prosthese of the prior art The problem of mechanical stability maintenance of phase is bad.
To achieve these goals, the invention provides a kind of elbow joint prosthese, including：Artificial body of the humerus and ulnar prosthesis, Artificial body of the humerus and ulnar prosthesis are hinged；Wherein, strip ridge is provided with the side wall of artificial body of the humerus and ulnar prosthesis, with Artificial body of the humerus makes artificial body of the humerus engage and fix with the inwall of medullary cavity of humerus by strip ridge thereon when being implanted into medullary cavity of humerus, with And ulnar prosthesis is set to engage and consolidate with the inwall of ulna pulp cavity by strip ridge thereon when ulnar prosthesis is implanted into ulna pulp cavity It is fixed.
Further, bearing of trend extension of the strip ridge on artificial body of the humerus along artificial body of the humerus；And/or positioned at chi Bearing of trend extension of the upper strip ridge of bone prosthese along ulnar prosthesis.
Further, the strip ridge on artificial body of the humerus is a plurality of, and a plurality of strip ridge is along the circumferentially-spaced of artificial body of the humerus Set；And/or the strip ridge on ulnar prosthesis is a plurality of, a plurality of strip ridge being provided at circumferentially spaced along ulnar prosthesis.
Further, artificial body of the humerus has hinged end and free end, and ulnar prosthesis has hinged end and free end, humerus vacation The hinged end of body and the hinged end of ulnar prosthesis are hinged, and the free end of artificial body of the humerus is used to insert in medullary cavity of humerus, ulna The free end of prosthese is used to insert in ulna pulp cavity.
Further, the free end of artificial body of the humerus and the free end of ulnar prosthesis are conical head.
Further, bearing of trend extension of the strip ridge on artificial body of the humerus along artificial body of the humerus, positioned at artificial body of the humerus On strip ridge close to one end of the free end of artificial body of the humerus be wedge structure；And/or the strip ridge edge on ulnar prosthesis The bearing of trend of ulnar prosthesis extends, and the strip ridge on ulnar prosthesis is wedge shape close to one end of the free end of ulnar prosthesis Structure.
Further, the first bone cement passage is offered on artificial body of the humerus, the first bone cement passage is used in artificial body of the humerus When being implanted into medullary cavity of humerus by bone cement guide in the space between the outer wall of artificial body of the humerus and the inwall of medullary cavity of humerus so that the upper arm The inwall of bone prosthese and medullary cavity of humerus is fixed.
Further, the first bone cement passage includes：First axle is opened up along the bearing of trend of artificial body of the humerus to pod apertures, For bone cement to be guided to the distal end of artificial body of the humerus by the near-end of artificial body of the humerus；First radial direction pod apertures, along artificial body of the humerus Radially open up with by first axle to pod apertures and the ft connection of artificial body of the humerus, for bone cement to be drawn from first axle to pod apertures It is directed in the space between the outer wall of artificial body of the humerus and the inwall of medullary cavity of humerus.
Further, the second bone cement passage is offered on ulnar prosthesis, the second bone cement passage is used in ulnar prosthesis Bone cement is guided in space to the inwall of the outer wall of ulnar prosthesis and ulna pulp cavity so that chi when being implanted into ulna pulp cavity The inwall of bone prosthese and ulna pulp cavity is fixed.
Further, the second bone cement passage includes：Second axial diversion hole, is opened up along the bearing of trend of ulnar prosthesis, For bone cement to be guided to the distal end of ulnar prosthesis by the near-end of ulnar prosthesis；Second radial direction pod apertures, along ulnar prosthesis Radially open up with by the ft connection in the second axial diversion hole and ulnar prosthesis, for bone cement to be drawn by the second axial diversion hole It is directed in the space between the outer wall of ulnar prosthesis and the inwall of ulna pulp cavity.
Further, artificial body of the humerus has a first connecting portion, and ulnar prosthesis has a second connecting portion, first connecting portion and the It is hinged between two connecting portions by connecting bearing pin.
Further, first connecting portion includes two clamps being oppositely arranged, and the first connection is offered on two clamps Hole；Second connecting portion includes location-plate, and the second connecting hole is offered on location-plate；Wherein, location-plate be embedded two clamps it Between so that the first connecting hole and the alignment of the second connecting hole, connection bearing pin is located in the first connecting hole and the second connecting hole with by the One connecting portion is hinged with second connecting portion.
Further, elbow joint prosthese also includes：Axle sleeve, it is set on connection bearing pin, axle sleeve is positioned at connection bearing pin and the In space in space between one connecting hole and/or between connection bearing pin and the second connecting hole.
Further, elbow joint prosthese also includes：Pinning, it is located in second connecting portion and is abutted with being connected bearing pin, used Locked in by connection bearing pin with second connecting portion.
Using the elbow joint prosthese of technical solution of the present invention, including：Artificial body of the humerus and ulnar prosthesis, artificial body of the humerus and ulna Prosthese is hinged；Wherein, strip ridge is provided with the side wall of artificial body of the humerus and ulnar prosthesis, to be implanted into the upper arm in artificial body of the humerus Artificial body of the humerus is engaged and is fixed with the inwall of medullary cavity of humerus by strip ridge thereon during ossis, and planted in ulnar prosthesis Ulnar prosthesis is set to engage and fix with the inwall of ulna pulp cavity by strip ridge thereon when entering ulna pulp cavity.So as in elbow joint The stability of prosthese fixation at initial stage can be greatly promoted in plasty, so as to ensure the fixed effect in long term, improves making for prosthese Use the life-span.Solve the problems, such as that the mechanical stability maintenance at elbow joint prosthese initial stage of the prior art is bad.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is optional a kind of structural representation of elbow joint prosthese according to embodiments of the present invention；
Fig. 2 is optional a kind of dimensional structure diagram of the artificial body of the humerus of elbow joint prosthese according to embodiments of the present invention；
Fig. 3 is optional a kind of cross-sectional view of the artificial body of the humerus of elbow joint prosthese according to embodiments of the present invention；
Fig. 4 is optional a kind of dimensional structure diagram of the ulnar prosthesis of elbow joint prosthese according to embodiments of the present invention；
Fig. 5 is optional a kind of cross-sectional view of the ulnar prosthesis of elbow joint prosthese according to embodiments of the present invention；
Fig. 6 is optional a kind of structural representation of the axle sleeve of the artificial body of the humerus of elbow joint prosthese according to embodiments of the present invention Figure；
Fig. 7 is that a kind of structure of the connection bearing pin of optional artificial body of the humerus of elbow joint prosthese according to embodiments of the present invention is shown It is intended to；And
Fig. 8 is optional a kind of structural representation of the pinning of the artificial body of the humerus of elbow joint prosthese according to embodiments of the present invention Figure.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, artificial body of the humerus；11st, first connecting portion；111st, clamp；112nd, the first connecting hole；20th, ulnar prosthesis；21st, second Connecting portion；211st, location-plate；212nd, the second connecting hole；30th, strip ridge；40th, the first bone cement passage；41st, the first axial diversion Hole；42nd, the first radial direction pod apertures；50th, the second bone cement passage；51st, the second axial diversion hole；52nd, the second radial direction pod apertures； 60th, bearing pin is connected；70th, axle sleeve；80th, pinning；90th, medullary cavity of humerus；100th, ulna pulp cavity；110th, remote plug.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Elbow joint prosthese according to embodiments of the present invention, as shown in figure 1, including：Artificial body of the humerus 10 and ulnar prosthesis 20, the upper arm Bone prosthese 10 and ulnar prosthesis 20 are hinged；Wherein, it is provided with strip in the side wall of artificial body of the humerus 10 and ulnar prosthesis 20 Ridge 30, to make artificial body of the humerus 10 pass through strip ridge 30 thereon and medullary cavity of humerus 90 when artificial body of the humerus 10 is implanted into medullary cavity of humerus 90 Inwall engage and fix, and ulnar prosthesis 20 be implanted into ulna pulp cavity 100 when ulnar prosthesis 20 is passed through strip thereon Ridge 30 is engaged and fixed with the inwall of ulna pulp cavity 100.
Using the elbow joint prosthese of technical solution of the present invention, including：Artificial body of the humerus 10 and ulnar prosthesis 20, artificial body of the humerus 10 It is hinged with ulnar prosthesis 20；Wherein, strip ridge 30 is provided with the side wall of artificial body of the humerus 10 and ulnar prosthesis 20, with Artificial body of the humerus 10 makes artificial body of the humerus 10 be connect by the inwall of strip ridge 30 and medullary cavity of humerus 90 thereon when being implanted into medullary cavity of humerus 90 Merge and fix, and ulnar prosthesis 20 is passed through strip ridge 30 and chi thereon when ulnar prosthesis 20 is implanted into ulna pulp cavity 100 The inwall of ossis 100 is engaged and fixed.So as to which the stabilization of prosthese fixation at initial stage can be greatly promoted in arthroplasty of elbow Property, so as to ensure the fixed effect in long term, improve the service life of prosthese.Solves elbow joint prosthese initial stage of the prior art Mechanical stability maintenance it is bad the problem of.
When it is implemented, as shown in Figure 1, Figure 2 and Figure 4, strip ridge 30 on artificial body of the humerus 10 is along artificial body of the humerus 10 Bearing of trend extension；And/or positioned at ulnar prosthesis 20 upper strip ridge 30 along ulnar prosthesis 20 bearing of trend extension.Position In the strip ridge 30 on artificial body of the humerus 10 to be a plurality of, a plurality of strip ridge 30 along artificial body of the humerus 10 be provided at circumferentially spaced and each rule It is parallel to each other between shape ridge 30；And/or the strip ridge 30 on ulnar prosthesis 20 is a plurality of, a plurality of strip ridge 30 is along ulna Prosthese 20 being provided at circumferentially spaced and being parallel to each other between each bar strip ridge 30.The implantation medullary cavity of humerus of artificial body of the humerus 10 is after 90s, the upper arm So that artificial body of the humerus 10 be fixed in the cortex of bone on each bar strip ridge 30 insertion inwall of medullary cavity of humerus 90 on bone prosthese 10；Chi After bone prosthese 20 is implanted into ulna pulp cavity 100, the bone on the inwall of each bar strip ridge 30 insertion ulna pulp cavity 100 on ulnar prosthesis 20 So that ulnar prosthesis 20 be fixed in cortex.
Further, artificial body of the humerus 10 has hinged end and free end, and ulnar prosthesis 20 has hinged end and free end, the upper arm The hinged end of bone prosthese 10 and the hinged end of ulnar prosthesis 20 are hinged, and the free end of artificial body of the humerus 10 is used to insert humerus marrow In chamber 90, the free end of ulnar prosthesis 20 is used to insert in ulna pulp cavity 100.Medullary cavity of humerus is inserted for the ease of artificial body of the humerus 10 90 and it is easy to ulnar prosthesis 20 to insert ulna pulp cavity 100, further, the free end of artificial body of the humerus 10 and ulnar prosthesis 20 Free end is conical head.Meanwhile the strip ridge 30 on artificial body of the humerus 10 is close to one end of the free end of artificial body of the humerus 10 For wedge structure；Strip ridge 30 on ulnar prosthesis 20 is wedge structure close to one end of the free end of ulnar prosthesis 20. The structure of the wedge structure and the conical head of the free end of artificial body of the humerus 10 on strip ridge 30 on artificial body of the humerus 10 is adapted, chi The structure of wedge structure and the conical head of the free end of ulnar prosthesis 20 on the strip ridge 30 of bone prosthese 20 is adapted.
As shown in figure 3, in order to be implanted into artificial body of the humerus 10, medullary cavity of humerus is after 90s to guide bone cement to artificial body of the humerus Between the outer wall of 10 distal end and the inwall of medullary cavity of humerus 90, so as to lift fixed effect.Further, opened on artificial body of the humerus 10 Provided with the first bone cement passage 40, the first bone cement passage 40 is used for bone cement when artificial body of the humerus 10 is implanted into medullary cavity of humerus 90 Guide to the distal end of artificial body of the humerus 10 outer wall and medullary cavity of humerus 90 inwall between space in so that artificial body of the humerus 10 and the upper arm The inwall of ossis 90 is fixed.One end that the distal end of artificial body of the humerus 10 is inserted in medullary cavity of humerus 90 for it, i.e. artificial body of the humerus 10 Free end, relative one end is the hinged end of the near-end, i.e. artificial body of the humerus 10 of artificial body of the humerus 10 with distal end.
As shown in figure 5, in order to which bone cement can be guided to ulnar prosthesis after ulnar prosthesis 20 is implanted into ulna pulp cavity 100 Between the outer wall of 20 distal end and the inwall of ulna pulp cavity 100, so as to lift fixed effect.Further, on ulnar prosthesis 20 The second bone cement passage 50 is offered, the second bone cement passage 50 is used for bone when ulnar prosthesis 20 is implanted into ulna pulp cavity 100 Cement is guided in space to the inwall of the outer wall of the distal end of ulnar prosthesis 20 and ulna pulp cavity 100 so that ulnar prosthesis 20 Fixed with the inwall of ulna pulp cavity 100.One end that the distal end of ulnar prosthesis 20 is inserted in ulna pulp cavity 100 for it, i.e. ulna are false The free end of body 20, relative one end is the hinged end of the near-end, i.e. ulnar prosthesis 20 of ulnar prosthesis 20 with distal end.
Specifically, as shown in figures 1 and 3, the first bone cement passage 40 includes：First axle to pod apertures 41 and second radially Pod apertures, bearing of trend of the first axle to pod apertures 41 along artificial body of the humerus 10 open up, for by bone cement by artificial body of the humerus 10 Near-end is guided to the distal end of artificial body of the humerus 10；Radial direction of the first radial direction pod apertures 42 along artificial body of the humerus 10 is opened up with axial by first Pod apertures 41 and the ft connection of artificial body of the humerus 10, for bone cement to be guided to artificial body of the humerus 10 from first axle to pod apertures 41 Outer wall and medullary cavity of humerus 90 inwall between space in.
As depicted in figs. 1 and 2, the first radial direction pod apertures 42 are multiple that multiple first radial direction pod apertures 42 are arranged in column-shaped, The first being provided at circumferentially spaced along artificial body of the humerus 10 of radial direction pod apertures 42 respectively arranged, each edge of first radial direction pod apertures 42 of each column The bearing of trend of artificial body of the humerus 10 is arranged and is located between two adjacent strip ridges 30.Artificial body of the humerus 10 is implanted into medullary cavity of humerus 90 Afterwards, in the cortex of bone on each bar strip ridge 30 insertion inwall of medullary cavity of humerus 90 on artificial body of the humerus 10, the outer wall of artificial body of the humerus 10, Multiple strip spaces can be formed between adjacent two strip ridges 30 and the inwall of medullary cavity of humerus 90, bone cement is by first axle guide The near-end of discharge orifice 41 pours into, and reaches first axle to exiting into each by the first radial direction pod apertures 42 behind the distal end of pod apertures 41 Artificial body of the humerus 10 and medullary cavity of humerus 90 are fixed in shape space.
As shown in Figure 1 and Figure 5, the second bone cement passage 50 includes：Second axial diversion hole 51 and the second radial direction pod apertures 52, bearing of trend of the second axial diversion hole 51 along ulnar prosthesis 20 opens up, for the near-end by bone cement by ulnar prosthesis 20 Guide to the distal end of ulnar prosthesis 20；Radial direction of the second radial direction pod apertures 52 along ulnar prosthesis 20 is opened up with by the second axial diversion Hole 51 and the ft connection of ulnar prosthesis 20, for bone cement to be guided to outside ulnar prosthesis 20 by the second axial diversion hole 51 In space between the inwall of wall and ulna pulp cavity 100.
As shown in Figure 1 and Figure 4, the second radial direction pod apertures 52 are multiple that multiple second radial direction pod apertures 52 are arranged in column-shaped, The second being provided at circumferentially spaced along ulnar prosthesis 20 of radial direction pod apertures 52 respectively arranged, each edge of second radial direction pod apertures 52 of each column The bearing of trend of ulnar prosthesis 20 is arranged and is located between two adjacent strip ridges 30.Ulnar prosthesis 20 is implanted into ulna pulp cavity After 100, in the cortex of bone on the inwall of each bar strip ridge 30 insertion ulna pulp cavity 100 on ulnar prosthesis 20, ulnar prosthesis 20 Multiple strip spaces can be formed between outer wall, adjacent two strip ridges 30 and the inwall of ulna pulp cavity 100, bone cement is by second The near-end in axial diversion hole 51 pours into, and is exited into after reaching the distal end in the second axial diversion hole 51 by the second radial direction pod apertures 52 Artificial body of the humerus 10 and ulna pulp cavity 100 are fixed in each strip space.
Artificial body of the humerus 10 is implanted into that medullary cavity of humerus is after 90s and ulnar prosthesis 20 is implanted into after ulna pulp cavity 100, it is necessary to by humerus Prosthese 10 and ulnar prosthesis 20 are connected with each other, further, as shown in figure 1, artificial body of the humerus 10 has first connecting portion 11, ulna Prosthese 20 has second connecting portion 21, between first connecting portion 11 and second connecting portion 21 by connect bearing pin 60 be hinged from And artificial body of the humerus 10 and ulnar prosthesis 20 mutually can be connected rotationally.
Specifically, as shown in Figures 2 to 5, first connecting portion 11 includes two clamps 111 being oppositely arranged, two clamps The first connecting hole 112 is offered on 111；Second connecting portion 21 includes location-plate 211, and the second company is offered on location-plate 211 Connect hole 212；By location-plate 211 being embedded between two clamps 111 so that the first connecting hole 112 and the second connecting hole 212 Alignment, then by connect bearing pin 60 be located in the first connecting hole 112 and the second connecting hole 212 with by first connecting portion 11 with Second connecting portion 21 is hinged so that artificial body of the humerus 10 and ulnar prosthesis 20 mutually can be connected rotationally.
In order that connection bearing pin 60 preferably can cooperate with the first connecting hole 112 or the second connecting hole 212, enter one Step ground, as shown in figures 1 to 6, elbow joint prosthese also includes：Axle sleeve 70, axle sleeve 70 is set on connection bearing pin 60 and embedded company In space in space between the connecting hole 112 of pin axle 60 and first and/or between the connection connecting hole 212 of bearing pin 60 and second So that connection bearing pin 60 preferably can cooperate with the first connecting hole 112 or the second connecting hole 212.
When artificial body of the humerus 10 and ulnar prosthesis 20 mutually rotate, connection bearing pin 60 and the location-plate 211 of second connecting portion 21 Between it is fixed so as to which remains stationary, the relative bearing pin 60 that connects of two clamps 111 of first connecting portion 11 rotate.Therefore, for general Connection bearing pin 60 interfixes with second connecting portion 21, further, as shown in Fig. 1, Fig. 7 and Fig. 8, is opened on connection bearing pin 60 Provided with pin hole, correspondingly, corresponding pin hole is also offered on the location-plate 211 of second connecting portion 21, connect bearing pin 60 After being assembled in the second connecting hole 212, the pin hole on connection bearing pin 60 is set to be aligned with the pin hole on location-plate 211, then Pass through the pin hole on the pin hole and connection bearing pin 60 on location-plate 211 by second connecting portion 21 with being connected by pinning 80 Bearing pin 60 is locked.
During clinical operation, medullary cavity of humerus 90 is rasped to the shank body identical diameter with artificial body of the humerus 10 first with reamer Size, then medullary cavity of humerus 90 is blocked with remote plug 110, be subsequently implanted artificial body of the humerus 10 and suppress in place, humerus is false Equally distributed strip ridge 30 can be embedded among the cortex of bone of medullary cavity of humerus 90 on body 10, and one is closely engaged in cortex of bone Rise, realize that the bio-mechanical at initial stage of artificial body of the humerus 10 is fixed, while by pressing in shank body of the bone cement along artificial body of the humerus 10 Between first axle injected to pod apertures 41 inside artificial body of the humerus 10, and pass through the shank body along artificial body of the humerus 10 circumferentially distributed the One radial direction pod apertures 42 are penetrated into medullary cavity of humerus 90, and remote plug 110 prevents bone cement from being spread beyond expected, bone cement and bone Matter forms micro- interior hinge lock mechanism, realizes the fixation of local bone cement, is so achieved that bio-mechanical is fixed and cement reaction Mixing fixed form, enhance the primary stability of artificial body of the humerus 10.
According to above-mentioned steps, ulna pulp cavity 100 is rasped to shank body identical diameter dimension with ulnar prosthesis 20 with reamer, Then ulna pulp cavity 100 is blocked with remote plug 110, is implanted into ulnar prosthesis 20 and suppresses in place, on ulnar prosthesis 20 The strip ridge 30 of even distribution can be embedded among the cortex of bone of ulna pulp cavity 100, be closely interlocked with cortex of bone, realize The bio-mechanical at initial stage of ulna pulp cavity 100 is fixed.Simultaneously by pressing the among shank body of the bone cement along ulnar prosthesis 20 Inside two axial diversion holes 51 injection ulnar prosthesis 20, and pass through the second circumferentially distributed radial direction pod apertures along ulnar prosthesis 20 52 penetrate into ulna pulp cavity 100, and remote plug 110 prevents bone cement from being spread beyond expected, and bone cement is micro- interior with New bone formation Lock mechanism is cut with scissors, realizes the fixation of local bone cement, is so achieved that bio-mechanical is fixed and the mixing of cement reaction is fixed Mode, enhance the primary stability of ulnar prosthesis 20.
After artificial body of the humerus 10 and the both sides installation of ulnar prosthesis 20, axle sleeve 70 is loaded to the clamp of artificial body of the humerus 10 In the first connecting hole 112 on 111, then by the location-plate 211 of ulnar prosthesis 20 be embedded in artificial body of the humerus 10 two clamps 111 it Between, and the first connecting hole 112 of artificial body of the humerus 10 is alignd with the second connecting hole 212 of ulnar prosthesis 20, bearing pin 60 will be connected Penetrate in the first connecting hole 112 of artificial body of the humerus 10 and the second connecting hole 212 of ulnar prosthesis 20, then it is with pinning 80 that ulna is false The location-plate 211 of body 20 is locked with being connected bearing pin 60, so as to realize being fixedly connected for artificial body of the humerus 10 and ulnar prosthesis 20.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (14)

  1. A kind of 1. elbow joint prosthese, it is characterised in that including：
    Artificial body of the humerus (10) and ulnar prosthesis (20), the artificial body of the humerus (10) and the ulnar prosthesis (20) are hinged；
    Wherein, strip ridge (30) is provided with the side wall of the artificial body of the humerus (10) and the ulnar prosthesis (20), with institute State artificial body of the humerus (10) implantation medullary cavity of humerus (90) when make the artificial body of the humerus (10) by the strip ridge (30) thereon with The inwall of the medullary cavity of humerus (90) is engaged and fixed, and is made when the ulnar prosthesis (20) is implanted into ulna pulp cavity (100) The ulnar prosthesis (20) is engaged and fixed with the inwall of the ulna pulp cavity (100) by the strip ridge (30) thereon.
  2. 2. elbow joint prosthese according to claim 1, it is characterised in that the strip ridge on the artificial body of the humerus (10) (30) extend along the bearing of trend of the artificial body of the humerus (10)；And/or the upper strip ridge (30) positioned at the ulnar prosthesis (20) Extend along the bearing of trend of the ulnar prosthesis (20).
  3. 3. elbow joint prosthese according to claim 2, it is characterised in that the bar on the artificial body of the humerus (10) Shape ridge (30) is a plurality of, a plurality of strip ridge (30) being provided at circumferentially spaced along the artificial body of the humerus (10)；And/or it is located at The strip ridge (30) on the ulnar prosthesis (20) is a plurality of, and a plurality of strip ridge (30) is along the ulnar prosthesis (20) Be provided at circumferentially spaced.
  4. 4. elbow joint prosthese according to claim 1, it is characterised in that the artificial body of the humerus (10) is with hinged end and certainly By holding, the ulnar prosthesis (20) has hinged end and free end, and the hinged end of the artificial body of the humerus (10) and the ulna are false The hinged end of body (20) is hinged, and the free end of the artificial body of the humerus (10) is used to insert in the medullary cavity of humerus (90), institute The free end for stating ulnar prosthesis (20) is used to insert in the ulna pulp cavity (100).
  5. 5. elbow joint prosthese according to claim 4, it is characterised in that the free end of the artificial body of the humerus (10) and described The free end of ulnar prosthesis (20) is conical head.
  6. 6. elbow joint prosthese according to claim 5, it is characterised in that the strip ridge on the artificial body of the humerus (10) (30) extend along the bearing of trend of the artificial body of the humerus (10), the strip ridge (30) on the artificial body of the humerus (10) is close to institute The one end for stating the free end of artificial body of the humerus (10) is wedge structure；And/or the strip ridge on the ulnar prosthesis (20) (30) extend along the bearing of trend of the ulnar prosthesis (20), the strip ridge (30) on the ulnar prosthesis (20) is close to institute The one end for stating the free end of ulnar prosthesis (20) is wedge structure.
  7. 7. elbow joint prosthese according to claim 1, it is characterised in that offer the first bone on the artificial body of the humerus (10) Cement pathway (40), the first bone cement passage (40) are used to be implanted into the medullary cavity of humerus (90) in the artificial body of the humerus (10) When by bone cement guide in space to the inwall of the outer wall of the artificial body of the humerus (10) and the medullary cavity of humerus (90) with Fix the inwall of the artificial body of the humerus (10) and the medullary cavity of humerus (90).
  8. 8. elbow joint prosthese according to claim 7, it is characterised in that the first bone cement passage (40) includes：
    First axle is opened up along the bearing of trend of the artificial body of the humerus (10) to pod apertures (41), for by bone cement by the upper arm The near-end of bone prosthese (10) is guided to the distal end of the artificial body of the humerus (10)；
    First radial direction pod apertures (42), along the radial direction of the artificial body of the humerus (10) open up with by the first axle to pod apertures (41) With the ft connection of the artificial body of the humerus (10), for bone cement to be guided to the upper arm from the first axle to pod apertures (41) In space between the outer wall of bone prosthese (10) and the inwall of the medullary cavity of humerus (90).
  9. 9. elbow joint prosthese according to claim 7, it is characterised in that offer the second bone on the ulnar prosthesis (20) Cement pathway (50), the second bone cement passage (50) are used to be implanted into the ulna pulp cavity in the ulnar prosthesis (20) (100) bone cement is guided into the sky to the inwall of the outer wall of the ulnar prosthesis (20) and the ulna pulp cavity (100) when So that the inwall of the ulnar prosthesis (20) and the ulna pulp cavity (100) is fixed in gap.
  10. 10. elbow joint prosthese according to claim 9, it is characterised in that the second bone cement passage (50) includes：
    Second axial diversion hole (51), is opened up along the bearing of trend of the ulnar prosthesis (20), for by bone cement by the chi The near-end of bone prosthese (20) is guided to the distal end of the ulnar prosthesis (20)；
    Second radial direction pod apertures (52), opened up along the radial direction of the ulnar prosthesis (20) with by the second axial diversion hole (51) With the ft connection of the ulnar prosthesis (20), for bone cement to be guided to the chi by the second axial diversion hole (51) In space between the inwall of the outer wall of bone prosthese (20) and the ulna pulp cavity (100).
  11. 11. elbow joint prosthese according to claim 1, it is characterised in that the artificial body of the humerus (10) has the first connection Portion (11), the ulnar prosthesis (20) have second connecting portion (21), the first connecting portion (11) and the second connecting portion (21) it is hinged between by connecting bearing pin (60).
  12. 12. elbow joint prosthese according to claim 11, it is characterised in that the first connecting portion (11) includes two phases To the clamp (111) of setting, the first connecting hole (112) is offered on two clamps (111)；The second connecting portion (21) include location-plate (211), the second connecting hole (212) is offered on the location-plate (211)；
    Wherein, the location-plate (211) be embedded between two clamps (111) so that first connecting hole (112) and Second connecting hole (212) alignment, the connection bearing pin (60) are located in first connecting hole (112) and described second and connected Connect in hole (212) so that the first connecting portion (11) and the second connecting portion (21) to be hinged.
  13. 13. elbow joint prosthese according to claim 12, it is characterised in that the elbow joint prosthese also includes：
    Axle sleeve (70), be set on connection bearing pin (60), the axle sleeve (70) positioned at the connection bearing pin (60) with it is described Sky in space between first connecting hole (112) and/or between the connection bearing pin (60) and second connecting hole (212) In gap.
  14. 14. elbow joint prosthese according to claim 11, it is characterised in that the elbow joint prosthese also includes：
    Pinning (80), it is located in the second connecting portion (21) and is abutted with the connection bearing pin (60), for by the company Pin axle (60) is locked with the second connecting portion (21).
CN201710959134.XA 2017-10-16 2017-10-16 Elbow joint prosthesis Active CN107647945B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109966031A (en) * 2019-04-29 2019-07-05 中南大学湘雅医院 A kind of elbow joint

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Publication number Priority date Publication date Assignee Title
CN1177469A (en) * 1996-05-22 1998-04-01 Gmt医疗技术有限公司 Internal prothesis for elbow joint
CN101984939A (en) * 2010-12-16 2011-03-16 西安福安创意咨询有限责任公司 Design method of artificial elbow joint prosthesis with tantalum coating
CN203280543U (en) * 2013-04-26 2013-11-13 北京力达康科技有限公司 Micro-hole tantalum coating assembly type rotary knee joint prosthesis
CN203829097U (en) * 2014-05-26 2014-09-17 北京威高亚华人工关节开发有限公司 Rotary hinge type knee joint prosthesis
JP2015029547A (en) * 2013-07-31 2015-02-16 京セラメディカル株式会社 Flanged bone implanting member and method for assembling the same
CN105167890A (en) * 2015-10-26 2015-12-23 北京威高亚华人工关节开发有限公司 Multifunctional elbow joint replacement prosthesis
CN208710179U (en) * 2017-10-16 2019-04-09 北京爱康宜诚医疗器材有限公司 Elbow joint prosthese

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1177469A (en) * 1996-05-22 1998-04-01 Gmt医疗技术有限公司 Internal prothesis for elbow joint
CN101984939A (en) * 2010-12-16 2011-03-16 西安福安创意咨询有限责任公司 Design method of artificial elbow joint prosthesis with tantalum coating
CN203280543U (en) * 2013-04-26 2013-11-13 北京力达康科技有限公司 Micro-hole tantalum coating assembly type rotary knee joint prosthesis
JP2015029547A (en) * 2013-07-31 2015-02-16 京セラメディカル株式会社 Flanged bone implanting member and method for assembling the same
CN203829097U (en) * 2014-05-26 2014-09-17 北京威高亚华人工关节开发有限公司 Rotary hinge type knee joint prosthesis
CN105167890A (en) * 2015-10-26 2015-12-23 北京威高亚华人工关节开发有限公司 Multifunctional elbow joint replacement prosthesis
CN208710179U (en) * 2017-10-16 2019-04-09 北京爱康宜诚医疗器材有限公司 Elbow joint prosthese

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109966031A (en) * 2019-04-29 2019-07-05 中南大学湘雅医院 A kind of elbow joint

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