JPH04503025A - Artificial joints especially for finger joints - Google Patents

Artificial joints especially for finger joints

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Publication number
JPH04503025A
JPH04503025A JP3500310A JP50031091A JPH04503025A JP H04503025 A JPH04503025 A JP H04503025A JP 3500310 A JP3500310 A JP 3500310A JP 50031091 A JP50031091 A JP 50031091A JP H04503025 A JPH04503025 A JP H04503025A
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JP
Japan
Prior art keywords
joined
joint
wire
joint prosthesis
sleeve
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3500310A
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Japanese (ja)
Inventor
ペルッソン、ベント
Original Assignee
アーベー　ボルボ
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Application filed by アーベー　ボルボ filed Critical アーベー　ボルボ
Publication of JPH04503025A publication Critical patent/JPH04503025A/en
Pending legal-status Critical Current

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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
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
    • 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
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • 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
    • A61F2002/30566—Helical springs
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30624—Hinged joint, e.g. 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
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
    • A61F2002/4243—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for interphalangeal joints, i.e. IP 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 に　のか　の　′ 本発明は関節に隣接した骨の中に外科的に移植可能な固定部材のペアーと、その 固定部材への接合のための関節接合体とから構成される関節補綴に関する。[Detailed description of the invention] ni no kano' The present invention provides a pair of fixation members surgically implantable into bone adjacent a joint; The present invention relates to a joint prosthesis comprising an articulation body for joining to a fixed member.

最近開発されたこのタイプの指関節補綴は、指関節に隣接する骨内に外科的に移 植可能なチタン製ネジのペアーとネジのフランジ部分で射出成形されるシリコン ゴムの中間関節接合体とから成る。各々のチタン製ネジは各々の指骨の長手方向 の骨内に挿入され、そしてやがて骨組織と共に統合される。関節それ自身を作る シリコンゴムは僅かに反発力を持ったヒンジとして働く。Recently developed, this type of finger prosthesis is surgically implanted into the bone adjacent to the finger joint. A pair of implantable titanium screws and silicone injection molded on the screw flange. It consists of a rubber intermediate joint. Each titanium screw is placed in the longitudinal direction of each phalanx. is inserted into the bone and eventually integrates with the bone tissue. make the joint itself The silicone rubber acts as a hinge with a slight repulsive force.

この様に、シリコンゴムで関節それ自身を作るという長所は、球音などの摩擦生 成構成要素無しに簡単で、信頼性のある設計を得ることが可能であることである 。In this way, the advantage of making the joint itself with silicone rubber is that it can generate friction such as ball sounds. It is possible to obtain a simple and reliable design without components. .

しかしながら、関節の中のシリコンが関節に隣接する骨を溶かすなど、骨組織に それ自身影響を及ぼすということが明らかにされた。これはチタン製ネジの固定 を弱めることとなる。他の短所は、曲がった指をまっすぐにするために働（シリ コン関節における非常に限られた弾性力である。However, the silicone inside the joint can cause damage to the bone tissue, such as melting the bone adjacent to the joint. It has been shown that it has its own influence. This is a titanium screw fixation This will weaken the Another disadvantage is that it works (series) to straighten crooked fingers. There is very limited elasticity in the con joint.

本発明の目的は、シリコン、或は他のエラストマーを使用しないで、良好な平衡 スプリングバック効果が達成可能な簡単で、信頼出来る関節を提供する導入部で 説明されたタイプの関節補綴を提供することである。The object of the present invention is to achieve a good balance without using silicone or other elastomers. With an introduction that provides an easy and reliable articulation in which a springback effect can be achieved. The object is to provide a joint prosthesis of the type described.

これは、関節接合体が、固定部材の一つに接合された一端と他の固定部材に接合 された他端を有する少なくとも一つ以上の螺旋巻き線スプリングワイヤーから構 成されるという事実により、本発明に従って達成される。This means that the articulating body has one end joined to one of the fixed members and one end joined to the other fixed member. consisting of at least one helically wound spring wire having the other end This is achieved according to the present invention by the fact that

本発明に従った関節において、螺旋スプリング手段は骨間の伸縮的関係を形成す る。ワイヤー材料、ワイヤー径、そして巻数がスプリング力と、これらのパラメ ータを簡単な方法で調整出来るようにするスプリング通路、或は関節角度を決定 するので、接合が達成出来て、またリュウマチを患っている患者の機動性をも向 上させる。In the joint according to the invention, the helical spring means forms an elastic relationship between the bones. Ru. The wire material, wire diameter, and number of turns affect the spring force and these parameters. Determine spring passages or joint angles that allow adjustment of data in an easy way This makes it possible to achieve a joint and also improves the mobility of patients suffering from rheumatism. let it go up

本発明による関節補綴における好適形態では、１本のワイヤーの巻き線が他のワ イヤーの巻き線間に存在するように互いに撚られた２つの螺旋巻き線スプリング ワイヤーが使用される。各ワイヤーは、各固定部材がスプリング容器のいずれか の端部において両ワイヤーに接合されるように、一つの固定部材に接合された一 端と他の固定部材に接合された他端を有する。この設計は、もしその螺旋の反対 端におけるワイヤー端が個々の固定部材に接合されているならば単純な螺旋によ り及ぼされる転覆モーメントを回避する。二重スプリングと“対角線”固定と備 えた本発明による形態において、転覆モーメントは、スプリング力が関節の軸方 向中心線に関して対称的となるように互いに相殺する。In a preferred embodiment of the joint prosthesis according to the invention, one wire winding is connected to the other wire windings. Two helical winding springs twisted together to exist between the ear windings wire is used. Each wire is connected to one of the spring containers with each fixing member one fixed member joined to both wires at the ends of the one end and the other end joined to another fixing member. This design is the opposite of that spiral If the wire ends at the ends are joined to individual fixing members, a simple spiral avoid the overturning moment exerted by Double spring and “diagonal” fixing and features In the embodiment according to the present invention, the overturning moment is caused by the spring force acting in the axial direction of the joint. They cancel each other out symmetrically with respect to the center line.

本発明が、添付の図に示された例を参照して以下に説明される。図１は指に移植 された本発明による補綴の関節を有する指のＸ線投影略図である。The invention will be explained below with reference to examples illustrated in the accompanying figures. Figure 1 is transplanted to a finger 1 is a schematic X-ray projection of a finger with a joint of a prosthesis according to the invention; FIG.

図２は本発明の原理を示す略式の形態の透視図であり、図３と図４は好適形態の 縦断面と横断面の各々を示す図である。FIG. 2 is a perspective view of a simplified form illustrating the principles of the invention, and FIGS. 3 and 4 are a perspective view of a preferred form. It is a figure which shows each of a longitudinal section and a cross section.

図１において、１と２は指の２本の骨を示す、骨の対面端は、関節接合体４、ス テンレスプレートのペアー５、そしてステンレスビン６ａから成る、通常３で示 される関節補綴のための空間を提供するために切り取られている。ビン６ａは、 前もって外科的に移植され、そして骨の成長により確実に保持されたチタン製ビ ン６ｂ内の骨の中に挿入される。In FIG. 1, 1 and 2 indicate two bones of a finger. Consisting of a pair of stainless steel plates 5 and a stainless steel bottle 6a, usually designated 3. The joint has been cut away to provide space for the joint prosthesis. Bin 6a is Titanium beads previously surgically implanted and held securely by bone growth. is inserted into the bone within the bone 6b.

関節接合体４それ自体の原理と機能は図２に示される。関節接合体は円筒状保持 台７から構成され、その上にワイヤーが互いに絡まるようにスプリングスチール 、即ちステンレス１８／８スチールの２本の金属ワイヤー８と９が螺旋状に巻き 付けられている。各々のワイヤーの入線端（１０又は１１）と出線端（１２又は １３）が逆に方向付けられるようにワイヤーが巻かれている。ワイヤーの端部１ ０−１３は、ビン６が固定されるプレート１４．１５のペアーにペアーで接合さ れている。上述の方法でのワイヤー端１０−１３の搭載は、矢印“Ｃ”により示 されたような関節運動中互いに相殺する逆に方向付けられたオーバターニングモ ーメント“ａ”と“ｂ”を受けるワイヤー８，９により形成される個々の螺旋ス プリングとなる。The principle and function of the articulation body 4 itself is illustrated in FIG. Articulating body maintains cylindrical shape It consists of a stand 7, on which spring steel is placed so that the wires are intertwined with each other. , that is, two metal wires 8 and 9 made of stainless steel 18/8 are wound in a spiral shape. It is attached. The incoming wire end (10 or 11) and the outgoing wire end (12 or The wire is wound so that 13) is oriented in the opposite direction. Wire end 1 0-13 are joined in pairs to the pair of plates 14.15 to which the bins 6 are fixed. It is. The mounting of wire ends 10-13 in the manner described above is indicated by arrow "C". Oppositely oriented overturning motors that cancel each other out during joint movements such as Individual helical threads formed by wires 8, 9 receiving the elements "a" and "b" It becomes pulling.

図３と図４は非常に大きなスケールでの図１の関節補綴の好適形態を示す０図１ と図２のこれらに対応する構成要素が同参照番号で示されている１図３と図４に よる実際的形態は、図２における平坦固定要素が同心スリーブ１４と１５のペア ーの形で与えられることに関してのみ本発明の原理を示す図２のスケッチと異な る。望ましくは、それ等はステンレススチール製で、そしてスリーブ１４．１５ 間の摩擦が関節運動中の相対的回転で最小となるようにそれらの対面表面１６． １７上にポリエチレン被覆を有することが望ましい。Figures 3 and 4 show a preferred form of the joint prosthesis of Figure 1 on a very large scale. Components corresponding to these in FIG. 2 are designated by the same reference numerals. According to a practical embodiment, the flat fixation element in FIG. 2, which illustrates the principle of the invention only in that it is given in the form of Ru. Preferably they are made of stainless steel and the sleeve 14.15 their facing surfaces 16. such that friction between them is minimized with relative rotation during articulation. It is desirable to have a polyethylene coating over 17.

図３の形態において、関節接合体４はビン６ｂから独立しており、そして必要な 時に関節が容易に置き換えられるように差込み接続の作用によりそれに接続され るだけである。In the configuration of FIG. 3, the articulation body 4 is independent of the bin 6b and the necessary Sometimes the joint is connected to it by the action of a bayonet connection so that it can be easily replaced. It's just that.

この目的のために、各プレート５はフランジ３０と共に、ドライバービン１８． １９の各々で装備される。各ドライバービンはシリンダー１４又は１５内の個々 のボアー２０内に固定され、そしてフランジ３０は固定ネジ３２の作用によりプ レート内の対応キャビティ３１内に固定されている。最外側シリンダー１４は、 内部スリーブ１５用のドライバービン１９が延長する周辺貫通スロット２２で提 供される。前記スロットの周辺延長は関節の最大角度を決定する０図３に示され る形態において、スロットは十分長いので、０度から９０度の関節運動を可能に する。For this purpose, each plate 5, together with a flange 30, has a driver bin 18. Equipped with 19 each. Each driver bin is an individual in cylinder 14 or 15. The flange 30 is fixed in the bore 20 of the plate by the action of the fixing screw 32. It is fixed in a corresponding cavity 31 in the plate. The outermost cylinder 14 is The driver pin 19 for the inner sleeve 15 is provided with a peripheral through-slot 22 that extends. Served. The peripheral extension of the slot determines the maximum angle of the joint as shown in Figure 3. In this configuration, the slot is long enough to allow 0 to 90 degrees of articulation. do.

ワイヤースプリング８と９の各々の端部１０，１１、そして１２．１３の各々は 、Ｉ！１２に示されたものと同様に外部スリーブ１４と内部スリーブ１５内にそ れぞれ固定される。各々のワイヤー端１０．１１は内部スリーブ内の周辺スロッ ト２３を通じて延長しく図４）、その周辺範囲はスロット２２の範囲に対応して 、外部スリーブ１４内のボアー２４を通過し、そこで曲げられた部分の作用によ り固定される。各ワイヤー端１２．１３は内部スリーブ１５内のボアー２５（図 ４）内に固定される。Each of the ends 10, 11 and 12.13 of each of the wire springs 8 and 9 is , I! 12 within the outer sleeve 14 and inner sleeve 15. Each is fixed. Each wire end 10.11 is inserted into a peripheral slot within the inner sleeve. 4), the peripheral area of which corresponds to the area of the slot 22. , passing through the bore 24 in the outer sleeve 14 and under the action of the bent portion therein. Fixed. Each wire end 12.13 is connected to a bore 25 in the inner sleeve 15 (Fig. 4) Fixed within.

ワイヤースプリング８．９により形成されたスプリング容器は図３で示される完 全に伸長した位置で完全に無負荷にされるか、又は内部スリーブ１５に嵌合され たドライバー１９の側表面がスロット２２の上部端エツジ２６に対して僅かに押 し付けられるように僅かに前もって応力を持たせることが出来るかのいずれかで ある。図３と図４に示された位置では、関節の伸長された真っ直ぐの位置を表し 、ワイヤー巻き線とシリンダー７の外部表面、そして内部スリーブ１５の内部表 面との間には小さな遊び“Ｓ”が在る。この遊びは関節運動中のスプリング８の 伸長とスプリング９の収縮を提供するために必要とされる。The spring container formed by the wire spring 8.9 is shown in FIG. fully unloaded in the fully extended position or fitted into the inner sleeve 15. The side surface of the screwdriver 19 pressed slightly against the upper edge 26 of the slot 22 Either it can be slightly pre-stressed so that it can be basted. be. The positions shown in Figures 3 and 4 represent the extended and straight position of the joint. , the wire windings and the external surface of the cylinder 7, and the internal surface of the internal sleeve 15. There is a small play "S" between the surface and the surface. This play is caused by the movement of spring 8 during joint movement. required to provide for the extension and contraction of the spring 9.

好適形態が上述のように説明され、ここでスプリング８゜９はシリンダー７の周 りに巻き付けられている。即ち、これはワイヤー螺旋に対する内方限度を提供す るためにたった一つの目的を有し、ワイヤースプリングが互いに干渉することを 防ぐ。しかしながら、シリンダーが排除できるような、ワイヤー巻き線の他の配 列が考えられる。単一螺旋スプリングで弾性関節を実施することも又理論的には 可能であるが、それは上記形態により得られた最適解決法を提供しない。A preferred form is described above, in which the spring 8.9 is attached to the circumference of the cylinder 7. It is wrapped around the rim. That is, it provides an inner limit to the wire helix. It has only one purpose: to prevent wire springs from interfering with each other. prevent. However, other arrangements of wire windings such that cylinders can be eliminated columns can be considered. It is also theoretically possible to implement an elastic joint with a single helical spring. Although possible, it does not provide the optimal solution obtained by the above formulation.

国際調査報告 国際調査報告 、ベゴ／ＳＥ　９０１００７３４international search report international search report , Bego/SE 90100734

Claims (7)

【特許請求の範囲】[Claims] １．関節に隣接する骨に外科的に移植可能な固定部材のペアーと、そしてその固 定部材に接合される関節接合体（４）とから構成される関節補綴において、関節 接合体は、固定部材の一つ（６，１４）に接合された一端（１０，１１）と、他 の固定部材に（６，１５）に接合された他端（１２，１３）を有する少なくとも 一つ以上の螺旋状巻き線スプリングウイヤ−（８，９）から構成されることを特 徴とする関節補綴。1. a pair of fixation members surgically implantable in the bone adjacent the joint; In a joint prosthesis consisting of a joint body (4) joined to a fixed member, the joint The joined body has one end (10, 11) joined to one of the fixing members (6, 14), and the other end at least the other end (12, 13) is joined to (6, 15) to the fixed member of It is characterized in that it is composed of one or more helically wound spring wires (8, 9). Joint prosthesis. ２．関節接合体（４）は、その上にスプリングワイヤ−（８，９）が巻き付けら れる円筒状保持台（７）から構成されることを特徴とする請求の範囲第１項に記 載の関節補綴。2. The articulation body (4) has spring wires (8, 9) wound around it. The device according to claim 1, characterized in that it is composed of a cylindrical holding base (7) that Joint prosthesis. ３．関節接合体（４）は、１本のワイヤの巻き線が他のワイヤーの巻き線間に在 り、そして各ワイヤーは一つの固定部材（６，１４）に接合された一つの端部（ １０，１１）そして他の固定部材（６，１５）に接合された他端（１２，１３） とを有するように撚り合わされている２本の螺旋巻き線スプリングワイヤ−（８ ，９）から構成されることを特徴とする請求の範囲第１，２項のいずれかに記載 の関節補綴。3. The articulating body (4) has a winding of one wire between windings of the other wire. and each wire has one end (6, 14) joined to one fixed member (6, 14). 10, 11) and the other end (12, 13) joined to another fixing member (6, 15) Two spirally wound spring wires (8 , 9) according to either claim 1 or 2. joint prosthesis. ４．関節接合体（４）は円筒状保持台（７）を包囲する同心的に搭載された円筒 状スリーブ構成要素（１４，１５）のペアーから構成され、そして前記ワイヤー スプリング（８，９）の一端は一つのスリーブ（１４）に接合され、しかも他端 （１２，１３）は他のスリーブ（１５）に接合されるのでスリーブはスプリング ワイヤーにより及ぼされる螺旋スプリンクカに対して互いに回転可能となること を特徴とする請求の範囲第１，２，３項のいずれかに記載の関節補綴。4. The articulation body (4) is a concentrically mounted cylinder surrounding a cylindrical holding platform (7). consisting of a pair of shaped sleeve components (14, 15) and said wire One end of the springs (8, 9) is joined to one sleeve (14), and the other end (12, 13) are joined to another sleeve (15), so the sleeve has a spring Be able to rotate relative to each other relative to the helical sprinkler exerted by the wire The joint prosthesis according to any one of claims 1, 2, and 3, characterized by: ５．固定部材は個々のスリーブ（１４，１５）に接合されたピン（６，１９，６ ，２０）、チタン製の外科的に移植可能（１，２）部分とから構成され、そして 外部スリーブは（１４）はスロット（２２）を通じて延長する周辺を有し、それ を通じて内部スリーブ（１５）内のピン（１９）が延長することを特徴とする請 求の範囲第４項に記載の関節補綴。5. The fixing members are pins (6, 19, 6) joined to the individual sleeves (14, 15). , 20), a surgically implantable (1, 2) part made of titanium, and The outer sleeve (14) has a periphery extending through the slot (22); A claim characterized in that the pin (19) in the inner sleeve (15) extends through the The joint prosthesis according to item 4 of the scope of request. ６．スリーブ（１４，１５）はステンレススチールから成り、そして互いに対面 するそれらの摩擦表面（１６，１７）はポリエチレン層で被覆されていることを 特徴とする請求の範囲第４，５項のいずれかに記載の関節補綴。6. The sleeves (14, 15) are made of stainless steel and face each other that their friction surfaces (16, 17) are coated with a polyethylene layer. A joint prosthesis according to any one of claims 4 and 5. ７．スプリングワイヤ−（８，９）はステンレススチールから成り、そして約０ ．５ｍｍの直径を有することを特徴とする請求の範囲第１，２，３，４，５項の いずれかに記載の関節補綴。7. The spring wires (8,9) are made of stainless steel and have a diameter of about 0 ．． Claims 1, 2, 3, 4 and 5, characterized in that it has a diameter of 5 mm. Joint prosthesis according to any of the above.
JP3500310A 1989-11-15 1990-11-14 Artificial joints especially for finger joints Pending JPH04503025A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8903838-4 1989-11-15
SE8903838A SE464961B (en) 1989-11-15 1989-11-15 LED PROTES, IN PARTICULAR, FINGER LEADERS

Publications (1)

Publication Number Publication Date
JPH04503025A true JPH04503025A (en) 1992-06-04

Family

ID=20377489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3500310A Pending JPH04503025A (en) 1989-11-15 1990-11-14 Artificial joints especially for finger joints

Country Status (4)

Country Link
EP (1) EP0502039A1 (en)
JP (1) JPH04503025A (en)
SE (1) SE464961B (en)
WO (1) WO1991007149A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014115166A (en) * 2012-12-07 2014-06-26 Transtron Inc Displacement detector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2717071B1 (en) * 1994-03-11 1996-05-31 Procerati Joint prosthesis.
IT1277790B1 (en) * 1995-02-17 1997-11-12 Tecres Spa METACARPO-FALANGEA AND INTERPHALANGE PROSTHESES FOR HAND OR FOOT JOINTS
SE510125C2 (en) 1996-01-22 1999-04-19 Handevelop Ab A prosthetic device
US6383223B1 (en) 1997-06-18 2002-05-07 BAEHLER ANDRé Endoprosthesis for a joint, especially a finger, toe or wrist joint
US20040009169A1 (en) 2002-02-25 2004-01-15 Julie Taylor Administration of agents for the treatment of inflammation
WO2012009735A1 (en) * 2010-07-16 2012-01-19 Vaal University Of Technology Articulating prosthesis
WO2017037686A1 (en) * 2015-09-03 2017-03-09 Cmc Sert Ltd. Prosthesis for replacing joint in a human hand or foot

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US1350518A (en) * 1919-08-01 1920-08-24 Grant Prisbrey Artificial leg
US3990116A (en) * 1974-10-17 1976-11-09 Fixel Irving E Pretensioned prosthetic device for skeletal joints

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014115166A (en) * 2012-12-07 2014-06-26 Transtron Inc Displacement detector

Also Published As

Publication number Publication date
SE464961B (en) 1991-07-08
SE8903838L (en) 1991-05-16
SE8903838D0 (en) 1989-11-15
WO1991007149A1 (en) 1991-05-30
EP0502039A1 (en) 1992-09-09

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