JP2532346B2 - Extracorporeal artificial joint - Google Patents
Extracorporeal artificial jointInfo
- Publication number
- JP2532346B2 JP2532346B2 JP5254454A JP25445493A JP2532346B2 JP 2532346 B2 JP2532346 B2 JP 2532346B2 JP 5254454 A JP5254454 A JP 5254454A JP 25445493 A JP25445493 A JP 25445493A JP 2532346 B2 JP2532346 B2 JP 2532346B2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- clamper
- artificial joint
- rod
- support
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
Description
【０００１】[0001]
【産業上の利用分野】本発明は、人体又は動物の関節疾
患を治療するために、関節に加わる荷重を軽減する装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for reducing the load applied to joints for treating joint diseases in humans or animals.
【０００２】[0002]
【従来の技術】関節に加わる負荷を軽減する手段として
は、杖、松葉杖などにより思惟的に荷重を制限する手
段、関節が動かないように支持体を創外固定する手段な
どが用いられている。この支持体を用いる手段において
は、関節に加わる荷重は軽減されるが、関節の運動が制
限されるため、日常的な動作を行うことができず、不便
である。また、二つの支持体間にヒンジ結合部を設け、
各支持体をピンで患者の骨に結合するようにした関節用
の治療装置も知られている（特開昭５３−８３３８２）
が、該支持体は剛性部材よりなるため、腕や脚を動かす
際に、力が骨又は関節に直接作用して患者に不快感又は
苦痛を与えることがある。 2. Description of the Related Art As a means for reducing the load applied to a joint, a means for deliberately limiting the load with a cane or a crutch, a means for externally fixing a support so that the joint does not move, and the like are used. . In the means using this support, the load applied to the joint is reduced, but since the movement of the joint is limited, it is inconvenient that daily movement cannot be performed. Also, a hinge joint is provided between the two supports,
For joints where each support is pinned to the patient's bone
Treatment device is also known (Japanese Patent Laid-Open No. 53-83382).
However, since the support is made of a rigid member, it moves the arms and legs.
At this time, the force directly acts on the bone or joint and causes the patient discomfort or
May cause distress.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、関節の運動
を制限することなく関節に加わる荷重を軽減する装置を
得ることを課題とする。SUMMARY OF THE INVENTION An object of the present invention is to obtain a device for reducing the load applied to a joint without limiting the movement of the joint.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
の第１の手段は、請求項１に記載したとおり、ヒンジ結
合した一対の支持体の各端部に、骨格に結合したピンを
保持するためのクランパを連設した体外式人工関節にお
いて、前記支持体の少なくとも一方に、弾性をもつ緩衝
体を介設したことを特徴とする。[Means for Solving the Problems] A first means for solving the above problems is, as described in claim 1, to hold a pin connected to a skeleton at each end of a pair of hinged supports. you clamper order to continuously provided the body outside the prosthetic joint
There are, at least one of the previous SL support, characterized in that interposed a cushion with elastic.
【０００５】また、第２の手段は、請求項２に記載した
とおり、請求項１において、前記支持体の中間部をロッ
ドと該ロッドが嵌合する筒部とを有する二部分に別け、
該二部分の間に、緩衝体と該緩衝体を支持する位置が調
節できる受座とを介在させたことを特徴とする。The second means is, as described in claim 2, in claim 1, the intermediate portion of the support is locked.
Separated into two parts having a tube and a tubular part to which the rod fits,
Between the two parts, the buffer and the position supporting the buffer are adjusted.
It is characterized by interposing a seat that can be knotted .
【０００６】[0006]
【作用】請求項１の手段によれば、装置は、関節に牽引
力を与えた状態で装着され、関節に荷重がかかるのを防
止すると共に、ヒンジによって関節の運動を許容し、且
つ人工関節を介して骨格に伝わる衝撃が緩衝体で緩和さ
れる。そして、請求項２の手段によれば、受座の位置を
調節して緩衝体の弾力を調節し、緩衝作用を調節でき
る。 According to the means of claim 1, the device is mounted in a state where traction force is applied to the joint, prevents the joint from being loaded, and allows the joint to move by the hinge , and
The shock transmitted to the skeleton through the artificial joint is buffered. Then, according to the means of claim 2, the position of the seat is determined.
You can adjust the elasticity of the shock absorber to adjust the shock absorbing effect.
It
【０００７】[0007]
【実施例】以下、図面を参照して本発明の実施例を説明
する。図１、２において、１は人体の膝関節、２は大腿
骨、３は脛骨、４は腓骨である。５は本発明の人工関節
で脚部を貫通した貫通ピン６〜９の両側に体外で取付け
られる。該貫通ピン６〜９は、従来、骨折部に副える体
外副管の連結に用いられているものと同一物である。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, 1 is a human knee joint, 2 is a femur, 3 is a tibia, and 4 is a fibula. Reference numeral 5 is an artificial joint of the present invention, which is attached to both sides of penetrating pins 6 to 9 penetrating a leg portion outside the body. The penetrating pins 6 to 9 are the same as those used in the past for connecting an extracorporeal auxiliary tube subordinate to a fractured part.
【０００８】人工関節５は、軸１０ａをもつヒンジ１０
で回動自在に連結された支持体１１、１２を備える。支
持体１１は、ロッド１３、１４からなり、両ロッド１
３、１４は、角度調節部１５で調節自在に結合されてい
る。該角度調節部１５は、ロッド１３、１４からの突出
部１３ａ、１４ａを重ね合わせてねじ１５ａで締結した
もので、突出部１３ａ、１４ａの重なり面には、滑り止
めのために菊座１５ｂを形成して噛み合わせている。The artificial joint 5 has a hinge 10 having an axis 10a.
Supports 11 and 12 rotatably connected to each other are provided. The support body 11 is composed of rods 13 and 14, and both rods 1
Angles 3 and 14 are connected by an angle adjuster 15 so as to be adjustable. The angle adjusting portion 15 is formed by stacking protruding portions 13a and 14a from the rods 13 and 14 and fastening them with screws 15a. Form and engage.
【０００９】ロッド１４の端部側の部分は、クランパ１
６に調節自在に固定されている。クランパ１６は、従
来、骨折部に副える創外固定用のパイプを、骨格を貫く
貫通ピンに固定するためのものと同種のもので、ロッド
クランパ１７、回転板１８、ピンクランパ１９からな
る。The end portion of the rod 14 is the clamper 1
6 is adjustable and fixed. Conventionally, the clamper 16 is of the same type as that for fixing an external fixation pipe subordinate to a fractured part to a penetrating pin that penetrates the skeleton, and includes a rod clamper 17, a rotating plate 18, and a pink ramper 19.
【００１０】ロッドクランパ１７は、ロッド１４に嵌合
する孔と該孔に達するスリット１７ａをもち、該スリッ
ト１７ａを締めねじ１７ｂで縮めることによりロッド１
４の適所に固定される。回転板１８は、外端の円弧面１
８ａと、図外のスリットと締めねじ１８ｂをもち、ロッ
ドクランパ１７から伸びる突出部１７ｃに回動自在に嵌
合し、矢印２０の方向に調節され固定される。また、ピ
ンクランパ１９は、ピン６、７を挟持するクランプ片１
９ａ、１９ｂと締めねじ１９ｃをもち、該クランプ片１
９ａは、前記円弧面１８ａに重ねられる。締めねじ１９
ｃは、回転板１８内に揺動自在に保持された雌ねじにね
じ込まれており、ピンクランパ１９を円弧面１８ａに沿
って矢印２１の方向に調節して締めねじ１９ｃを締めつ
けると、ピンクランパ１９は、貫通ピン６、７を挟持し
た状態で回転板１８に固定される。The rod clamper 17 has a hole to be fitted into the rod 14 and a slit 17a reaching the hole, and the slit 17a is contracted with a tightening screw 17b so that the rod 1
Fixed in place of 4. The rotary plate 18 has a circular arc surface 1 at the outer end.
8a, a slit (not shown), and a tightening screw 18b are rotatably fitted to a protrusion 17c extending from the rod clamper 17, and are adjusted and fixed in the direction of arrow 20. The pink ramper 19 is a clamp piece 1 that holds the pins 6 and 7.
9a, 19b and a tightening screw 19c, the clamp piece 1
9a is superposed on the circular arc surface 18a. Tightening screw 19
c is screwed into a female screw swingably held in the rotary plate 18, and when the pink ramper 19 is adjusted in the direction of the arrow 21 along the arc surface 18a and the tightening screw 19c is tightened, the pink ramper 19 is The penetrating pins 6 and 7 are fixed to the rotary plate 18 while being sandwiched therebetween.
【００１１】他方の支持体１２は、その中間部がロッド
２３と該ロッド２３が挿入される筒部２４とに二分され
ており、ロッド２３には段部２３ａが設けられ、筒部２
４には調節リング２５のねじ部２５ａがねじ込まれてお
り、段部２３ａと調節リング２５の間に緩衝用のスプリ
ング２６が介設されている。該調節リング２５は、ス プ
リング２６に対して位置が調節できる受座になる。 The intermediate portion of the other support 12 is divided into a rod 23 and a cylindrical portion 24 into which the rod 23 is inserted.
The rod 23 is provided with a stepped portion 23a, and the cylindrical portion 2
The threaded portion 25a of the adjusting ring 25 is screwed into the shaft 4, and a buffer spring 26 is interposed between the step portion 23a and the adjusting ring 25. The adjustment ring 25, the scan-flops
It is a seat whose position can be adjusted with respect to the ring 26.
【００１２】筒部２４から下方に伸びる接続部２４ａに
はクランパ２７が連設され、貫通ピン８、９の両端が該
クランパ２７で挟持される。該クランパ２７は、クラン
プ片２７ａ、２７ｂと締めねじ２７ｃからなる。A clamper 27 is connected to the connecting portion 24a extending downward from the cylindrical portion 24, and both ends of the penetrating pins 8 and 9 are clamped by the clamper 27. The clamper 27 includes clamp pieces 27a and 27b and a tightening screw 27c.
【００１３】以上の構成を備えるから、下部の貫通ピン
８、９にクランパ２７を固定し、上部のクランパ１６の
回転板１８の締めねじ１８ｂを緩め、ロッドクランパ１
７とピンクランパ１９にロッド１４と貫通ピン６、７を
仮止めし、固定位置及び固定角度を調節しながら締めね
じ１７ｂ、１８ｂ、１９ｃを締めつけて、関節１を開く
牽引を与えると共に、ヒンジ１０が関節１の屈伸を阻害
しない状態で固定する。With the above-described structure, the clamper 27 is fixed to the lower through pins 8 and 9, and the tightening screw 18b of the rotary plate 18 of the upper clamper 16 is loosened to remove the rod clamper 1.
7 and the pink ramper 19, the rod 14 and the penetrating pins 6 and 7 are temporarily fixed, the tightening screws 17b, 18b and 19c are tightened while adjusting the fixed position and the fixed angle, and the joint 10 is pulled. Fix joint 1 in a state where it does not hinder flexion and extension.
【００１４】この際、角度調節部１５でロッド１３、１
４の角度を調節して支持体１１の形状を調節し、調節リ
ング２５を回転してスプリング２６の弾発力を調節する
と共にヒンジ１０の上下位置を微調節する。At this time, the rods 1 and 1 are moved by the angle adjusting unit 15.
The angle of 4 is adjusted to adjust the shape of the support 11, the adjustment ring 25 is rotated to adjust the resilience of the spring 26, and the vertical position of the hinge 10 is finely adjusted.
【００１５】このように装着することにより、体重の大
部分は、大腿骨２から貫通ピン６、７、人工関節５のス
プリング２６、貫通ピン８、９を介して脛骨３に伝わ
り、関節１に作用する体重は僅かになる。そして、膝を
屈伸するときは、人工関節５はヒンジ１０を中心として
膝と共に屈伸するから、歩行その他の日常動作を支障な
く行うことができる。By mounting in this way, most of the body weight is absorbed from the femur 2 through the penetration pins 6, 7 and the artificial joint 5 .
The weight transmitted to the tibia 3 via the pulling 26 and the penetration pins 8 and 9 and acting on the joint 1 becomes small. When the knee is bent and stretched, the artificial joint 5 bends and extends around the hinge 10 together with the knee, so that walking and other daily activities can be performed without any hindrance.
【００１６】なお、上記実施例においては、人工関節５
を脚の両側に用いているが、貫通ピン６〜９を脚の一側
方のみから突出させ、１個の人工関節５を介設して片持
ち式にしてもよい。また、該実施例で下部のクランパ２
７と筒部２４が接続部２４ａで一体とされているが、該
接続部２４ａに代えて調節自在の位置調節機構を設ける
ことができ、更にクランパ１６又は２７を上下に交換し
て配置することができ、上下を同じ形式のクランパとす
ることもできる。In the above embodiment, the artificial joint 5
Although it is used on both sides of the leg, the penetrating pins 6 to 9 may be projected from only one side of the leg and one artificial joint 5 may be interposed to make the cantilever type. Also, in the embodiment, the lower clamper 2
7 and the cylindrical portion 24 are integrated at the connecting portion 24a, but an adjustable position adjusting mechanism can be provided in place of the connecting portion 24a, and the clamper 16 or 27 can be replaced vertically. The upper and lower parts can be the same type of clamper.
【００１７】また、ヒンジ１０の構造は、図示のものに
限らず、軸１０ａを受ける穴に余裕を持たせることがで
き、例えば大径の穴、横長の楕円形の穴、略ハート形の
円弧状の穴等にしてもよい。The structure of the hinge 10 is not limited to that shown in the figure, but a hole for receiving the shaft 10a can be provided with a margin, for example, a large-diameter hole, a horizontally long elliptical hole, or a substantially heart-shaped circle. It may be an arcuate hole or the like.
【００１８】以上、膝関節に用いる場合について説明し
たが肘関節にも使用でき、ペット、家畜類にも使用でき
る。Although the case of using the knee joint has been described above, the invention can also be used for the elbow joint and also for pets and livestock.
【００１９】[0019]
【発明の効果】以上のように、請求項１の発明において
は、ヒンジによって屈伸でき、且つ緩衝体を介在させた
支持体を備える人工関節を、関節に沿って創外固定でき
るようにしたから、その関節に加わる荷重を軽減できて
治療に役立ち、かつ該関節が自由に屈伸できて行動に不
便が生じない効果があり、更に、人工関節を介して伝わ
る衝撃が緩衝体で緩和され不快感を少なくする効果があ
る。また、請求項２の発明によれば、スプリングの受座
の位置を調節することにより、患者の回復度に応じて緩
衝作用及び荷重支持力を調節できる効果がある。 As described above, according to the first aspect of the present invention, the artificial joint that can be bent and extended by the hinge and that includes the support body with the buffer interposed can be externally fixed along the joint. Therefore, the load applied to the joint can be reduced, which is useful for treatment, and there is an effect that the joint can flex freely and the behavior is not inconvenient . Furthermore, the shock transmitted through the artificial joint is buffered. effect to reduce the discomfort is relieved there <br/> Ru. According to the invention of claim 2, the spring seat
By adjusting the position of the
It has an effect of adjusting the impact action and the load bearing force.
【図１】 本発明の実施例の使用態様を示す正面図FIG. 1 is a front view showing a mode of use of an embodiment of the present invention.
【図２】 同じく側面図[Fig. 2] Similarly, a side view
５ 人工関節 ６〜９ 貫通ピン
１０ ヒンジ１１、１２ 支持体 １３、１４、２３
ロッド １５ 角度調節部１６、２７ クランパ
１７ｂ、１８ｂ、１９ｃ、２７ｃ 締めねじ２４ 筒部
２５ 調節リング ２６ スプ
リング5 Artificial joint 6-9 Penetration pin
10 Hinge 11, 12 Support 13, 14, 23
Rod 15 Angle adjuster 16, 27 Clamper
17b, 18b, 19c, 27c Tightening screw 24 Cylindrical part 25 Adjustment ring 26 Spring
Claims (2)
に、骨格に結合したピンを保持するためのクランパを連
設した体外式人工関節において、前記支持体の少なくと
も一方に、弾性をもつ緩衝体を介設したことを特徴とす
る、体外式人工関節。At each end of the 1. A hinged pair of supports, the continuously arranged somatic outside prosthetic joints clamper for holding the pin which is attached to the backbone, at least one of the previous SL support, An extracorporeal artificial joint characterized in that an elastic cushioning body is provided.
をロッドと該ロッドが嵌合する筒部とを有する二部分に
別け、該二部分の間に、緩衝体と該緩衝体を支持する位
置が調節できる受座とを介在させたことを特徴とする、
体外式人工関節。 2. The intermediate portion of the support according to claim 1.
To a two-part having a rod and a tubular part into which the rod fits
Separately, between the two parts, a buffer and a position for supporting the buffer.
It is characterized by interposing a receiving seat whose position can be adjusted,
Extracorporeal artificial joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5254454A JP2532346B2 (en) | 1993-10-12 | 1993-10-12 | Extracorporeal artificial joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5254454A JP2532346B2 (en) | 1993-10-12 | 1993-10-12 | Extracorporeal artificial joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07100159A JPH07100159A (en) | 1995-04-18 |
| JP2532346B2 true JP2532346B2 (en) | 1996-09-11 |
Family
ID=17265245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5254454A Expired - Lifetime JP2532346B2 (en) | 1993-10-12 | 1993-10-12 | Extracorporeal artificial joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532346B2 (en) |
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| AU2009241686B2 (en) * | 2008-04-30 | 2015-01-22 | Moximed, Inc. | Surgical implantation method and devices for an extra-articular mechanical energy absorbing apparatus |
| EP2273940A2 (en) * | 2008-04-30 | 2011-01-19 | Moximed, Inc. | Femoral and tibial base components |
| US10531897B2 (en) * | 2010-08-26 | 2020-01-14 | Moximed, Inc. | Implantable device for relieving ankle pain |
| JP5753695B2 (en) * | 2011-01-28 | 2015-07-22 | 国立大学法人広島大学 | External fixator |
| US9808290B2 (en) * | 2011-07-06 | 2017-11-07 | Moximed, Inc. | Transcutaneous joint unloading device |
| KR101330343B1 (en) * | 2012-02-01 | 2013-11-15 | 경상대학교산학협력단 | A knee-orthosis to assist the gait by support the knee-joint |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU517196A1 (en) * | 1974-07-22 | 1977-09-25 | Центральный Ордена Трудового Красного Знамени Научно-Исследовательского Институт Травматологии И Ортопедии | Apparatus for repositioning and fixing bone fragments |
| DE2657143C3 (en) * | 1976-12-16 | 1980-07-10 | Centralnyj Nautschno-Issledovatelskij Institut Travmatologii I Ortopedii Imeni N.N. Priorova, Moskau | Apparatus for the surgical treatment of bones and body joints |
-
1993
- 1993-10-12 JP JP5254454A patent/JP2532346B2/en not_active Expired - Lifetime
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| JPH07100159A (en) | 1995-04-18 |
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