JP6475725B2

JP6475725B2 - Knee joint orthosis

Info

Publication number: JP6475725B2
Application number: JP2016535554A
Authority: JP
Inventors: 保佐喜眞; 秀男松本
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-22
Filing date: 2014-07-22
Publication date: 2019-02-27
Anticipated expiration: 2034-07-22
Also published as: WO2016013039A1; JPWO2016013039A1

Description

本発明は、膝関節に装着して歩行補助を行える膝関節用装具に関する。 The present invention relates to a knee joint orthosis that can be attached to a knee joint to assist walking.

膝関節用装具は、副木の原理を応用して、障害部である膝関節を副木に固定し、膝の変形を矯正し加えて障害部位を保護するものであると考えられてきた。膝装具のカフは患者の障害レベルに応じて、カフ数を調整して適用するのが一般的である。従来の複数カフ構造の装具は、１本カフ装具の支持力・矯正力の強化と障害部位の保護を狙いとしたもので、膝関節の動揺を抑制する目的で第１カフは勿論その他のカフと装具アームの結合は固定されている。したがって患者は障害のある脚を頑丈な箱状の装具に入れて３点支持原理に基づいて固定し、膝の変形を矯正して膝痛を減痛することになる。しかし装具の骨組みが強固のために歩行動作（膝の屈伸運動）に伴う装着ズレだけでなく、装具から受ける束縛感が装着違和感を強くする原因になって長時間装着の妨げになっていた。
装着ズレ防止としては、特許文献１にも見られるように、大腿骨内側上顆の上部の窪んだ部分に懸垂パッドを当て懸垂ベルトで抑え、さらに下腿の脹脛上部にアシストベルトを巻きつけて止める方法がある。特許文献１は、連結部材を有する装具に懸垂装置（懸垂アームと懸垂パッド及び懸垂ベルト）を採用している。
特許文献１で採用する方法は、装具ズレ防止に関しては従来の複数カフ構造の膝関節用装具においても有効に機能する。
また、特許文献１では、屈曲状態で装着した場合には伸展状態において第１のバンドを上方に押し上げる力が加わることになり、第１のバンドを押し上げる力によって第１のバンドの下方へのずれ落ちを防止できるとともに膝関節への荷重負荷を少なくすることができる。 The knee joint orthosis has been considered to protect the damaged part by applying the splint principle, fixing the knee joint, which is an obstacle, to the splint, and correcting the knee deformation. The knee brace cuff is generally applied by adjusting the number of cuffs according to the level of injury of the patient. The conventional multi-cuff orthosis is aimed at strengthening the support / correction force of the single cuff orthosis and protecting the damaged part. The attachment of the brace arm is fixed. Therefore, the patient puts the disabled leg in a sturdy box-shaped brace and fixes it on the basis of the three-point support principle to correct knee deformation and reduce knee pain. However, because the skeleton of the brace is strong, not only the slippage caused by the walking movement (knee bending / extending movement), but also the sense of restraint received from the brace has become a cause of an uncomfortable feeling of wearing, which has hindered wearing for a long time.
In order to prevent wearing displacement, as seen in Patent Document 1, a suspension pad is applied to a recessed portion on the upper part of the femoral medial epicondyle and restrained with a suspension belt, and further, an assist belt is wrapped around the upper calf of the lower leg and stopped. There is a way. Patent Document 1 employs a suspension device (a suspension arm, a suspension pad, and a suspension belt) for an appliance having a connecting member.
The method employed in Patent Document 1 functions effectively even in a conventional multi-cuff knee joint orthosis in terms of preventing orthosis displacement.
Further, in Patent Document 1, when the device is mounted in a bent state, a force for pushing up the first band is applied in the extended state, and the first band is displaced downward by the force for pushing up the first band. The fall can be prevented and the load applied to the knee joint can be reduced.

特開２０１１−１６７３６９号公報JP 2011-167369 A

しかし、特許文献１では、内側支持機構及び外側支持機構を大腿骨内側上顆の上方に配置することで、第１のバンドを押し上げる力が発生するが、内側支持機構及び外側支持機構を膝関節に配置すると第１のバンドを押し上げる力が発生しない。
従って、装着位置によっては第１のバンドを押し上げる力が発生せず、仮に装具ズレが生じることで第１のバンドを押し上げる力が弱まってしまうことがある。
また、特許文献１における内側支持機構及び外側支持機構では、大きな荷重に耐えるためには強固な材料を用いる必要があり、構造的に強度を高めることが難しい。 However, in Patent Document 1, a force for pushing up the first band is generated by arranging the inner support mechanism and the outer support mechanism above the femoral medial epicondyle, but the inner support mechanism and the outer support mechanism are connected to the knee joint. If it arrange | positions to, the force which pushes up a 1st band will not generate | occur | produce.
Accordingly, a force for pushing up the first band may not be generated depending on the mounting position, and the force for pushing up the first band may be weakened due to the occurrence of the orthosis shift.
Moreover, in the inner side support mechanism and the outer side support mechanism in patent document 1, in order to endure a big load, it is necessary to use a strong material, and it is difficult to raise intensity | strength structurally.

そこで本発明は、シンプルな構造で、動きに遊びやがたつきが無く、伸展寸法の変更が容易で、強度が高く、伸展時に膝関節を上下に引き離す力を安定して作用させることができる膝関節用装具を提供することを目的とする。 Therefore, the present invention has a simple structure, no play or rattling, easy to change extension dimensions, high strength, and can stably apply the force to pull the knee joint up and down during extension. An object is to provide a knee joint orthosis.

請求項１記載の本発明の膝関節用装具は、膝関節の内側に配置される内側支持機構と、前記膝関節の外側に配置される外側支持機構と、前記内側支持機構の上端側に回動自在に設けた内側上アームと、前記内側支持機構の下端側に回動自在に設けた内側下アームと、前記外側支持機構の上端側に回動自在に設けた外側上アームと、前記外側支持機構の下端側に回動自在に設けた外側下アームと、を備えた膝関節用装具であって、前記内側支持機構及び前記外側支持機構を、それぞれ４つのリンク材と４つのジョイントからなるリンク機構で構成し、前記内側支持機構を構成する前記リンク機構は、前記内側上アームと前記内側下アームとが２つの前記リンク材を構成し、前記内側上アームの下端部の第１内側上アーム位置、前記内側上アームの前記下端部から所定距離離れた第２内側上アーム位置、前記内側下アームの上端部の第１内側下アーム位置、及び前記内側下アームの前記上端部から所定距離離れた第２内側下アーム位置にそれぞれ４つの前記ジョイントを設け、前記外側支持機構を構成する前記リンク機構は、前記外側上アームと前記外側下アームとが２つの前記リンク材を構成し、前記外側上アームの下端部の第１外側上アーム位置、前記外側上アームの前記下端部から所定距離離れた第２外側上アーム位置、前記外側下アームの上端部の第１外側下アーム位置、及び前記外側下アームの前記上端部から所定距離離れた第２外側下アーム位置にそれぞれ４つの前記ジョイントを設け、前記第１内側上アーム位置に設けた前記ジョイントを第１内側上アームジョイントとし、前記第２内側上アーム位置に設けた前記ジョイントを第２内側上アームジョイントとし、前記第１内側下アーム位置に設けた前記ジョイントを第１内側下アームジョイントとし、前記第２内側下アーム位置に設けた前記ジョイントを第２内側下アームジョイントとし、前記第１内側上アームジョイントに一端を接続し、前記第２内側下アームジョイントに他端を接続する第１内側リンク材と、前記第１内側下アームジョイントに一端を接続し、前記第２内側上アームジョイントに他端を接続する第２内側リンク材と、を設け、前記内側上アーム、前記内側下アーム、前記第１内側リンク材、及び前記第２内側リンク材がそれぞれ４つの前記リンク材を構成し、前記第１外側上アーム位置に設けた前記ジョイントを第１外側上アームジョイントとし、前記第２外側上アーム位置に設けた前記ジョイントを第２外側上アームジョイントとし、前記第１外側下アーム位置に設けた前記ジョイントを第１外側下アームジョイントとし、前記第２外側下アーム位置に設けた前記ジョイントを第２外側下アームジョイントとし、前記第１外側上アームジョイントに一端を接続し、前記第２外側下アームジョイントに他端を接続する第１外側リンク材と、前記第１外側下アームジョイントに一端を接続し、前記第２外側上アームジョイントに他端を接続する第２外側リンク材と、を設け、前記外側上アーム、前記外側下アーム、前記第１外側リンク材、及び前記第２外側リンク材がそれぞれ４つの前記リンク材を構成し、前記第１内側上アームジョイントと前記第２内側下アームジョイントとを結ぶ内側第１仮想線と、前記第１内側下アームジョイントと前記第２内側上アームジョイントとを結ぶ内側第２仮想線との内側仮想交点、及び前記第１外側上アームジョイントと前記第２外側下アームジョイントとを結ぶ外側第１仮想線と、前記第１外側下アームジョイントと前記第２外側上アームジョイントとを結ぶ外側第２仮想線との外側仮想交点を、前記膝関節を配置する位置とし、前記膝関節の屈曲状態から伸展状態への動作に伴って、前記内側仮想交点及び前記外側仮想交点に対して前記第２内側上アームジョイント及び前記第２外側上アームジョイントは上方に移動し、前記内側仮想交点及び前記外側仮想交点に対して前記第２内側下アームジョイント及び前記第２外側下アームジョイントは下方に移動することを特徴とする。
請求項２記載の本発明の膝関節用装具は、膝関節の内側に配置される内側支持機構と、前記膝関節の外側に配置される外側支持機構と、前記内側支持機構の上端側に回動自在に設けた内側上アームと、前記内側支持機構の下端側に回動自在に設けた内側下アームと、前記外側支持機構の上端側に回動自在に設けた外側上アームと、前記外側支持機構の下端側に回動自在に設けた外側下アームと、を備えた膝関節用装具であって、前記内側支持機構及び前記外側支持機構を、それぞれ４つのリンク材と４つのジョイントからなるリンク機構で構成し、前記内側支持機構を構成する前記リンク機構は、前記内側上アームと前記内側下アームとが２つの前記リンク材を構成し、前記内側上アームの下端部の第１内側上アーム位置、前記内側上アームの前記下端部から所定距離離れた第２内側上アーム位置、前記内側下アームの上端部の第１内側下アーム位置、及び前記内側下アームの前記上端部から所定距離離れた第２内側下アーム位置にそれぞれ４つの前記ジョイントを設け、前記外側支持機構を構成する前記リンク機構は、前記外側上アームと前記外側下アームとが２つの前記リンク材を構成し、前記外側上アームの下端部の第１外側上アーム位置、前記外側上アームの前記下端部から所定距離離れた第２外側上アーム位置、前記外側下アームの上端部の第１外側下アーム位置、及び前記外側下アームの前記上端部から所定距離離れた第２外側下アーム位置にそれぞれ４つの前記ジョイントを設け、前記第１内側上アーム位置に設けた前記ジョイントを第１内側上アームジョイントとし、前記第２内側上アーム位置に設けた前記ジョイントを第２内側上アームジョイントとし、前記第１内側下アーム位置に設けた前記ジョイントを第１内側下アームジョイントとし、前記第２内側下アーム位置に設けた前記ジョイントを第２内側下アームジョイントとし、前記第２内側上アームジョイントに一端を接続する第１内側リンク材と、前記第２内側下アームジョイントに一端を接続する第２内側リンク材と、を設け、前記第１内側上アームジョイントと前記第１内側下アームジョイントとを同じ位置として第１内側アームジョイントを構成し、前記第１内側リンク材の他端と前記第２内側リンク材の他端とを内側リンクジョイントで接続し、前記内側上アーム、前記内側下アーム、前記第１内側リンク材、及び前記第２内側リンク材がそれぞれ４つの前記リンク材を構成し、前記第１外側上アーム位置に設けた前記ジョイントを第１外側上アームジョイントとし、前記第２外側上アーム位置に設けた前記ジョイントを第２外側上アームジョイントとし、前記第１外側下アーム位置に設けた前記ジョイントを第１外側下アームジョイントとし、前記第２外側下アーム位置に設けた前記ジョイントを第２外側下アームジョイントとし、前記第２外側上アームジョイントに一端を接続する第１外側リンク材と、前記第２外側下アームジョイントに一端を接続する第２外側リンク材と、を設け、前記第１外側上アームジョイントと前記第１外側下アームジョイントとを同じ位置として第１外側アームジョイントを構成し、前記第１外側リンク材の他端と前記第２外側リンク材の他端とを外側リンクジョイントで接続し、前記外側上アーム、前記外側下アーム、前記第１外側リンク材、及び前記第２外側リンク材がそれぞれ４つの前記リンク材を構成し、前記第１内側アームジョイントと前記内側リンクジョイントとを結ぶ内側第１仮想線と、前記第２内側上アームジョイントと前記第２内側下アームジョイントとを結ぶ内側第２仮想線との内側仮想交点、及び前記第１外側アームジョイントと前記外側リンクジョイントとを結ぶ外側第１仮想線と、前記第２外側上アームジョイントと前記第２外側下アームジョイントとを結ぶ外側第２仮想線との外側仮想交点、を、前記膝関節を配置する位置とし、前記膝関節の屈曲状態から伸展状態への動作に伴って、前記内側仮想交点及び前記外側仮想交点に対して前記第２内側上アームジョイント及び前記第２外側上アームジョイントは上方に移動し、前記内側仮想交点及び前記外側仮想交点に対して前記第２内側下アームジョイント及び前記第２外側下アームジョイントは下方に移動することを特徴とする。
請求項３記載の本発明は、請求項１又は請求項２に記載の膝関節用装具において、脹脛の最大膨れ部より上方の前記脹脛に配置される第１カフと、脛骨側に配置される第１カフバンドと前記内側上アームの内側に上端部を接続した内側懸垂アームと、前記外側上アームの内側に上端部を接続した外側懸垂アームと、前記内側懸垂アームの下端部及び前記外側懸垂アームの下端部に取付けた懸垂ベルトとを有し、前記第１カフ及び前記第１カフバンドを、前記内側下アームと前記外側下アームとに設けたことを特徴とする。
請求項４記載の本発明は、請求項３に記載の膝関節用装具において、前記第１カフ及び前記第１カフバンドを、前記内側下アームと前記外側下アームとに回動自在に設けたことを特徴とする。
請求項５記載の本発明は、請求項３又は請求項４に記載の膝関節用装具において、前記内側上アームの上端部と前記外側上アームの上端部に取付ける大腿バンドを、後大腿部に配置される第２カフと、前大腿部に配置される第２カフバンドとで構成し、前記第２カフ及び前記第２カフバンドを、前記内側上アームと前記外側上アームとに回動自在に設けたことを特徴とする。
請求項６記載の本発明は、請求項１から請求項５のいずれかに記載の膝関節用装具において、前記リンク材に、伸展角度又は屈曲角度を規制する角度規制部材を設けたことを特徴とする。 This onset Ming knee brace according to claim 1 is an inner support mechanism arranged inside of the knee joint, and outer support mechanism disposed on the outside of the knee joint, the upper end of the inner support mechanism An inner upper arm provided rotatably, an inner lower arm provided rotatably on a lower end side of the inner support mechanism, an outer upper arm provided rotatably on an upper end side of the outer support mechanism, A knee joint orthosis comprising an outer lower arm rotatably provided at a lower end side of the outer support mechanism, wherein the inner support mechanism and the outer support mechanism are respectively connected by four link members and four joints. In the link mechanism that constitutes the inner support mechanism, the inner upper arm and the inner lower arm constitute two link members, and the first inner side of the lower end portion of the inner upper arm Upper arm position, the inner upper arm A second inner upper arm position that is a predetermined distance away from the lower end, a first inner lower arm position that is an upper end of the inner lower arm, and a second inner lower arm position that is a predetermined distance away from the upper end of the inner lower arm In the link mechanism constituting the outer support mechanism, the outer upper arm and the outer lower arm constitute the two link members, and the lower end portion of the outer upper arm 1 outer upper arm position, second outer upper arm position spaced apart from the lower end of the outer upper arm by a predetermined distance, first outer lower arm position of the upper end of the outer lower arm, and upper end of the outer lower arm from each of the second outer lower arm position a predetermined distance away provided four of said joint, and a first inner upper arm joints of the joint provided on said first inner upper arm position The joint provided at the second inner upper arm position is a second inner upper arm joint, the joint provided at the first inner lower arm position is a first inner lower arm joint, and the second inner lower arm position is A first inner link member having one end connected to the first inner upper arm joint and the other end connected to the second inner lower arm joint; and A second inner link member connected at one end to the inner lower arm joint and connected at the other end to the second inner upper arm joint; and the inner upper arm, the inner lower arm, the first inner link member, And the second inner link member constitutes four link members, and the joint provided at the first outer upper arm position is connected to the first outer upper arm join. The joint provided at the second outer upper arm position as a second outer upper arm joint, the joint provided at the first outer lower arm position as a first outer lower arm joint, and the second outer lower arm joint. The joint provided at the arm position is a second outer lower arm joint, one end is connected to the first outer upper arm joint, and the other outer link is connected to the second outer lower arm joint; A second outer link member connected at one end to the first outer lower arm joint and connected at the other end to the second outer upper arm joint, the outer upper arm, the outer lower arm, and the first outer link. wood, and said second outer link member is constituted of four of the link member respectively, and said first inner upper arm joint and said second inner lower arm joint An inner virtual intersection of the inner first virtual line and the inner second virtual line connecting the first inner lower arm joint and the second inner upper arm joint, and the first outer upper arm joint and the second outer A position at which the knee joint is disposed at an outer virtual intersection of an outer first virtual line connecting the lower arm joint and an outer second virtual line connecting the first outer lower arm joint and the second outer upper arm joint. As the knee joint moves from the bent state to the extended state, the second inner upper arm joint and the second outer upper arm joint move upward with respect to the inner virtual intersection and the outer virtual intersection. The second inner lower arm joint and the second outer lower arm joint move downward with respect to the inner virtual intersection and the outer virtual intersection .
This onset Ming knee brace of claim 2, wherein the inner support mechanism arranged inside of the knee joint, and outer support mechanism disposed on the outside of the knee joint, the upper end of the inner support mechanism An inner upper arm provided rotatably, an inner lower arm provided rotatably on a lower end side of the inner support mechanism, an outer upper arm provided rotatably on an upper end side of the outer support mechanism, A knee joint orthosis comprising an outer lower arm rotatably provided at a lower end side of the outer support mechanism, wherein the inner support mechanism and the outer support mechanism are respectively connected by four link members and four joints. In the link mechanism that constitutes the inner support mechanism, the inner upper arm and the inner lower arm constitute two link members, and the first inner side of the lower end portion of the inner upper arm Upper arm position, the inner upper arm A second inner upper arm position that is a predetermined distance away from the lower end, a first inner lower arm position that is an upper end of the inner lower arm, and a second inner lower arm position that is a predetermined distance away from the upper end of the inner lower arm In the link mechanism constituting the outer support mechanism, the outer upper arm and the outer lower arm constitute the two link members, and the lower end portion of the outer upper arm 1 outer upper arm position, second outer upper arm position spaced apart from the lower end of the outer upper arm by a predetermined distance, first outer lower arm position of the upper end of the outer lower arm, and upper end of the outer lower arm from each of the second outer lower arm position a predetermined distance away provided four of said joint, and a first inner upper arm joints of the joint provided on said first inner upper arm position The joint provided at the second inner upper arm position is a second inner upper arm joint, the joint provided at the first inner lower arm position is a first inner lower arm joint, and the second inner lower arm position is A first inner link member that connects one end to the second inner upper arm joint, and a second inner link member that connects one end to the second inner lower arm joint. The first inner arm joint is configured with the first inner upper arm joint and the first inner lower arm joint at the same position, and the other end of the first inner link member and the second inner link member. Are connected to each other by an inner link joint, the inner upper arm, the inner lower arm, the first inner link member, and the second inner link member. Each of the four link members, the joint provided at the first outer upper arm position as the first outer upper arm joint, and the joint provided at the second outer upper arm position as the second outer upper arm. A joint provided at the first outer lower arm position as a first outer lower arm joint, the joint provided at the second outer lower arm position as a second outer lower arm joint, and the second outer upper A first outer link member connected at one end to the arm joint; and a second outer link member connected at one end to the second outer lower arm joint; and the first outer upper arm joint and the first outer lower arm. The first outer arm joint is configured with the joint as the same position, and the other end of the first outer link member and the other end of the second outer link member. The connected by outer link joints, the outer upper arm, the outer lower arm, said first outer link member, and said second outer link member is constituted of four of the link member respectively, said first inner arm joint An inner virtual intersection point between an inner first virtual line connecting the inner link joint, an inner second virtual line connecting the second inner upper arm joint and the second inner lower arm joint, and the first outer arm joint And an outer first virtual line connecting the outer link joint and an outer virtual intersection of the second outer virtual line connecting the second outer upper arm joint and the second outer lower arm joint, and the knee joint The second inner upper arm with respect to the inner virtual intersection and the outer virtual intersection as the knee joint moves from the bent state to the extended state. Arm joint and the second outer upper arm joint is moved upward, the inner virtual intersection and the second inner lower arm joint and the second outer lower arm joint relative to the outer virtual intersection to move downwardly Features.
According to a third aspect of the present invention, in the knee joint orthosis according to the first or second aspect , the first cuff is disposed on the calf above the maximum swollen portion of the calf and is disposed on the tibia side. An inner suspension arm having an upper end connected to the inner side of the first cuff band and the inner upper arm, an outer suspension arm having an upper end connected to the inner side of the outer upper arm, a lower end of the inner suspension arm, and the outer suspension arm A suspension belt attached to the lower end of the first lower cuff, wherein the first cuff and the first cuff band are provided on the inner lower arm and the outer lower arm.
According to a fourth aspect of the present invention, in the knee joint orthosis according to the third aspect , the first cuff and the first cuff band are provided rotatably on the inner lower arm and the outer lower arm. It is characterized by.
According to a fifth aspect of the present invention, in the knee joint orthosis according to the third or fourth aspect , a thigh band attached to an upper end portion of the inner upper arm and an upper end portion of the outer upper arm is provided on the rear thigh. A second cuff disposed on the front thigh and a second cuff band disposed on the front thigh, and the second cuff and the second cuff band are freely rotatable to the inner upper arm and the outer upper arm. It is characterized by being provided in.
According to a sixth aspect of the present invention, in the knee joint orthosis according to any one of the first to fifth aspects, the link member is provided with an angle regulating member for regulating an extension angle or a bending angle. And

本発明によれば、内側支持機構及び外側支持機構を、それぞれ４つのリンク材と４つのジョイントからなるリンク機構で構成することで、シンプルな構造で、動きに遊びやがたつきが無く、伸展寸法の変更が容易で、強度が高く、伸展時に膝関節を上下に引き離す力を安定して作用させることができる。 According to the present invention, each of the inner support mechanism and the outer support mechanism is configured by a link mechanism including four link members and four joints, so that the structure is simple and free from play and rattling, and is extended. The dimensions can be easily changed, the strength is high, and the force for pulling the knee joint up and down during extension can be stably applied.

本発明の実施例１による膝関節用装具の伸展状態での正面図The front view in the extension state of the orthosis for knee joints by Example 1 of this invention 同装置を少し屈曲させた状態での後方側面から見た斜視図Perspective view seen from the rear side with the device bent slightly 同装置の屈曲状態での後方側面から見た斜視図The perspective view seen from the back side in the bent state of the device 実施例１による内側支持機構を示す側面図The side view which shows the inner side support mechanism by Example 1. FIG. 実施例２による膝関節用装具の伸展状態での正面図The front view in the extension state of the orthosis for knee joint by Example 2 同装置を少し屈曲させた状態での後方側面から見た斜視図Perspective view seen from the rear side with the device bent slightly 同装置の屈曲状態での後方側面から見た斜視図The perspective view seen from the back side in the bent state of the device 実施例２による内側支持機構を示す側面図The side view which shows the inner side support mechanism by Example 2.

本発明の第１の実施の形態による膝関節用装具は、内側支持機構及び外側支持機構を、それぞれ４つのリンク材と４つのジョイントからなるリンク機構で構成し、内側支持機構を構成するリンク機構は、内側上アームと内側下アームとが２つのリンク材を構成し、内側上アームの下端部の第１内側上アーム位置、内側上アームの下端部から所定距離離れた第２内側上アーム位置、内側下アームの上端部の第１内側下アーム位置、及び内側下アームの上端部から所定距離離れた第２内側下アーム位置にそれぞれ４つのジョイントを設け、外側支持機構を構成するリンク機構は、外側上アームと外側下アームとが２つのリンク材を構成し、外側上アームの下端部の第１外側上アーム位置、外側上アームの下端部から所定距離離れた第２外側上アーム位置、外側下アームの上端部の第１外側下アーム位置、及び外側下アームの上端部から所定距離離れた第２外側下アーム位置にそれぞれ４つのジョイントを設け、第１内側上アームジョイントに一端を接続し、第２内側下アームジョイントに他端を接続する第１内側リンク材と、第１内側下アームジョイントに一端を接続し、第２内側上アームジョイントに他端を接続する第２内側リンク材とを設け、内側上アーム、内側下アーム、第１内側リンク材、及び第２内側リンク材がそれぞれ４つのリンク材を構成し、第１外側上アームジョイントに一端を接続し、第２外側下アームジョイントに他端を接続する第１外側リンク材と、第１外側下アームジョイントに一端を接続し、第２外側上アームジョイントに他端を接続する第２外側リンク材とを設け、外側上アーム、外側下アーム、第１外側リンク材、及び第２外側リンク材がそれぞれ４つのリンク材を構成し、第１内側上アームジョイントと第２内側下アームジョイントとを結ぶ内側第１仮想線と、第１内側下アームジョイントと第２内側上アームジョイントとを結ぶ内側第２仮想線との内側仮想交点、及び第１外側上アームジョイントと第２外側下アームジョイントとを結ぶ外側第１仮想線と、第１外側下アームジョイントと第２外側上アームジョイントとを結ぶ外側第２仮想線との外側仮想交点を、膝関節を配置する位置とし、膝関節の屈曲状態から伸展状態への動作に伴って、内側仮想交点及び外側仮想交点に対して第２内側上アームジョイント及び第２外側上アームジョイントは上方に移動し、内側仮想交点及び外側仮想交点に対して第２内側下アームジョイント及び第２外側下アームジョイントは下方に移動するものである。本実施の形態によれば、伸展時に膝関節を上下に引き離す力が作用するため、膝関節への荷重負担を軽減でき、膝関節の痛みを和らげて歩行を促すことができる。また、膝関節の伸展状態から屈曲状態までの４つのジョイントの仮想交点位置の平行移動量を小さくできるため、膝関節を屈曲させた状態でのリンク機構の膝関節からの出っ張りを小さくでき、また異なる平面内に複数のリンク材が配置されるため、支持機構の強度を高めることができる。 Knee orthosis according to the shape condition of the first embodiment of the present invention, the inner supporting mechanism and the outer support mechanism, each constituted by a link mechanism consisting of four links members and four joints, constituting the inner support mechanism In the link mechanism, the inner upper arm and the inner lower arm constitute two link members, the first inner upper arm position at the lower end portion of the inner upper arm, and the second inner upper portion separated by a predetermined distance from the lower end portion of the inner upper arm. Four joints are provided at each of the arm position, the first inner lower arm position at the upper end of the inner lower arm, and the second inner lower arm position at a predetermined distance from the upper end of the inner lower arm, and constitutes an outer support mechanism. In the mechanism, the outer upper arm and the outer lower arm constitute two link members, the first outer upper arm position at the lower end portion of the outer upper arm, and the second outer upper arm separated by a predetermined distance from the lower end portion of the outer upper arm. One end position, the first outer lower arm position of the upper end portion of the outer lower arm, and respectively provided with four joints from the upper end of the outer lower arms to the second outer lower arm position a predetermined distance away, the first inner upper arm joints A first inner link member that connects the other end to the second inner lower arm joint, and a second inner side that connects one end to the first inner lower arm joint and connects the other end to the second inner upper arm joint. A link member, and the inner upper arm, the inner lower arm, the first inner link member, and the second inner link member constitute four link members, one end connected to the first outer upper arm joint, A first outer link member that connects the other end to the outer lower arm joint, and a second outer link member that connects one end to the first outer lower arm joint and connects the other end to the second outer upper arm joint. The provided, outer upper arms, outer lower arm, the first outer link member, and a second outer link member is constituted of four links member respectively, the inner connecting first inner upper arm joint and a second inner lower arm joint An inner virtual intersection of the first imaginary line and the inner second imaginary line connecting the first inner lower arm joint and the second inner upper arm joint, and the first outer upper arm joint and the second outer lower arm joint are connected. The outer virtual intersection of the outer first imaginary line and the outer second imaginary line connecting the first outer lower arm joint and the second outer upper arm joint is defined as the position where the knee joint is disposed, and the knee joint extends from the bent state. With the movement to the state, the second inner upper arm joint and the second outer upper arm joint move upward with respect to the inner virtual intersection and the outer virtual intersection, and the inner virtual intersection and the outer virtual joint. The second inner lower arm joint and the second outer lower arm joint move downward with respect to the intersection . According to the present embodiment, since the force for pulling the knee joint up and down acts during extension, the load on the knee joint can be reduced, and the knee joint can be eased and walking can be promoted. In addition, since the parallel movement amount of the virtual joint position of the four joints from the extended state to the bent state of the knee joint can be reduced, the protrusion of the link mechanism from the knee joint when the knee joint is bent can be reduced. Since a plurality of link members are arranged in different planes, the strength of the support mechanism can be increased.

本発明の第２の実施の形態による膝関節用装具は、内側支持機構及び外側支持機構を、それぞれ４つのリンク材と４つのジョイントからなるリンク機構で構成し、内側支持機構を構成するリンク機構は、内側上アームと内側下アームとが２つのリンク材を構成し、内側上アームの下端部の第１内側上アーム位置、内側上アームの下端部から所定距離離れた第２内側上アーム位置、内側下アームの上端部の第１内側下アーム位置、及び内側下アームの上端部から所定距離離れた第２内側下アーム位置にそれぞれ４つのジョイントを設け、外側支持機構を構成するリンク機構は、外側上アームと外側下アームとが２つのリンク材を構成し、外側上アームの下端部の第１外側上アーム位置、外側上アームの下端部から所定距離離れた第２外側上アーム位置、外側下アームの上端部の第１外側下アーム位置、及び外側下アームの上端部から所定距離離れた第２外側下アーム位置にそれぞれ４つのジョイントを設け、第２内側上アームジョイントに一端を接続する第１内側リンク材と、第２内側下アームジョイントに一端を接続する第２内側リンク材とを設け、第１内側上アームジョイントと第１内側下アームジョイントとを同じ位置として第１内側アームジョイントを構成し、第１内側リンク材の他端と第２内側リンク材の他端とを内側リンクジョイントで接続し、内側上アーム、内側下アーム、第１内側リンク材、及び第２内側リンク材がそれぞれ４つのリンク材を構成し、第２外側上アームジョイントに一端を接続する第１外側リンク材と、第２外側下アームジョイントに一端を接続する第２外側リンク材とを設け、第１外側上アームジョイントと第１外側下アームジョイントとを同じ位置として第１外側アームジョイントを構成し、第１外側リンク材の他端と第２外側リンク材の他端とを外側リンクジョイントで接続し、外側上アーム、外側下アーム、第１外側リンク材、及び第２外側リンク材がそれぞれ４つのリンク材を構成し、第１内側アームジョイントと内側リンクジョイントとを結ぶ内側第１仮想線と、第２内側上アームジョイントと第２内側下アームジョイントとを結ぶ内側第２仮想線との内側仮想交点、及び第１外側アームジョイントと外側リンクジョイントとを結ぶ外側第１仮想線と、第２外側上アームジョイントと第２外側下アームジョイントとを結ぶ外側第２仮想線との外側仮想交点、を、膝関節を配置する位置とし、膝関節の屈曲状態から伸展状態への動作に伴って、内側仮想交点及び外側仮想交点に対して第２内側上アームジョイント及び第２外側上アームジョイントは上方に移動し、内側仮想交点及び外側仮想交点に対して第２内側下アームジョイント及び第２外側下アームジョイントは下方に移動するものである。本実施の形態によれば、４つのジョイントの仮想交点を膝関節に配置することで、膝関節の屈曲状態から伸展状態への動作に伴って、仮想交点に対して第２内側上アーム位置及び第２外側上アーム位置は上方に移動し、仮想交点に対して第２内側下アーム位置及び第２外側下アーム位置は下方に移動するため、伸展時に膝関節を上下に引き離す力が作用する。また、第１内側リンク材と第１内側下アームとを同一平面内で平行に配置し、第２内側リンク材と第１内側上アームとを同一平面内で平行に配置し、一方で第１外側リンク材と第１外側下アームとを同一平面内で平行に配置し、第２外側リンク材と第１外側上アームとを同一平面内で平行に配置することができるため、支持機構の強度を高めることができる。 Knee orthosis according to the shape condition of the second embodiment of the present invention, the inner supporting mechanism and the outer support mechanism, each constituted by a link mechanism consisting of four links members and four joints, constituting the inner support mechanism In the link mechanism, the inner upper arm and the inner lower arm constitute two link members, the first inner upper arm position at the lower end portion of the inner upper arm, and the second inner upper portion separated by a predetermined distance from the lower end portion of the inner upper arm. Four joints are provided at each of the arm position, the first inner lower arm position at the upper end of the inner lower arm, and the second inner lower arm position at a predetermined distance from the upper end of the inner lower arm, and constitutes an outer support mechanism. In the mechanism, the outer upper arm and the outer lower arm constitute two link members, the first outer upper arm position at the lower end portion of the outer upper arm, and the second outer upper arm separated by a predetermined distance from the lower end portion of the outer upper arm. One end position, the first outer lower arm position of the upper end portion of the outer lower arm, and respectively provided with four joints from the upper end of the outer lower arms to the second outer lower arm position a predetermined distance away, in the second inner upper arm joints And a second inner link member having one end connected to the second inner lower arm joint, the first inner upper arm joint and the first inner lower arm joint at the same position as the first An inner arm joint is configured, the other end of the first inner link member and the other end of the second inner link member are connected by the inner link joint, and the inner upper arm, the inner lower arm, the first inner link member, and the second Each of the inner link members constitutes four link members, and one end is connected to the second outer upper arm joint and one end is connected to the second outer upper arm joint. A second outer link member is provided, and the first outer arm joint is configured with the first outer upper arm joint and the first outer lower arm joint at the same position, and the other end of the first outer link member and the second outer link member. Are connected to each other by an outer link joint, and the outer upper arm, the outer lower arm, the first outer link member, and the second outer link member each form four link members, and the first inner arm joint and the inner link An inner imaginary intersection of an inner first imaginary line connecting the joint, an inner second imaginary line connecting the second inner upper arm joint and the second inner lower arm joint, and a first outer arm joint and an outer link joint. The knee joint is placed at the outer virtual intersection of the outer first virtual line connecting the outer second virtual line connecting the second outer upper arm joint and the second outer lower arm joint. The second inner upper arm joint and the second outer upper arm joint move upward with respect to the inner virtual intersection and the outer virtual intersection as the knee joint moves from the bent state to the extended state. The second inner lower arm joint and the second outer lower arm joint move downward with respect to the intersection and the outer virtual intersection . According to the present embodiment, by arranging the virtual intersection of the four joints at the knee joint, the second inner upper arm position and the virtual intersection with respect to the virtual intersection as the knee joint moves from the bent state to the extended state. Since the second outer upper arm position moves upward and the second inner lower arm position and the second outer lower arm position move downward relative to the virtual intersection, a force acts to pull the knee joint up and down during extension. Further, the first inner link member and the first inner lower arm are arranged in parallel in the same plane, and the second inner link member and the first inner upper arm are arranged in parallel in the same plane, while the first Since the outer link member and the first outer lower arm can be arranged in parallel in the same plane, and the second outer link member and the first outer upper arm can be arranged in parallel in the same plane, the strength of the support mechanism Can be increased.

本発明の第３の実施の形態は、第１又は第２の実施の形態による膝関節用装具において、脹脛の最大膨れ部より上方の脹脛に配置される第１カフと、脛骨側に配置される第１カフバンドと、内側上アームの内側に上端部を接続した内側懸垂アームと、外側上アームの内側に上端部を接続した外側懸垂アームと、内側懸垂アームの下端部及び外側懸垂アームの下端部に取付けた懸垂ベルトとを有し、第１カフ及び第１カフバンドを、内側下アームと外側下アームとに設けたものである。本実施の形態によれば、第１カフと第１カフバンドによって下方への装着ズレを防止でき、懸垂ベルトによって上方への装着ズレを防止できる。そして、上方及び下方への装着ズレが防止できるため、伸展時に膝関節を上下に引き離す力が作用する。 According to a third embodiment of the present invention, in the knee joint orthosis according to the first or second embodiment, the first cuff is disposed on the calf above the maximum swollen portion of the calf, and is disposed on the tibia side. A first cuff band, an inner suspension arm having an upper end connected to the inside of the inner upper arm, an outer suspension arm having an upper end connected to the inner side of the outer upper arm, a lower end of the inner suspension arm, and a lower end of the outer suspension arm The first cuff and the first cuff band are provided on the inner lower arm and the outer lower arm. According to the present embodiment, it is possible to prevent downward mounting displacement by the first cuff and the first cuff band, and it is possible to prevent upward mounting displacement by the suspension belt. And since the mounting | wearing shift | offset | difference to upper direction and the downward direction can be prevented, the force which pulls a knee joint up and down acts at the time of extension.

本発明の第４の実施の形態は、第３の実施の形態による膝関節用装具において、第１カフ及び第１カフバンドを、内側下アームと外側下アームとに回動自在に設けたものである。本実施の形態によれば、歩行動作など膝の屈伸運動などにより生じる脹脛の伸縮を吸収でき、装着ズレを生じることなく装着違和感・束縛感なく長時間装着が可能である。 According to a fourth embodiment of the present invention, in the knee joint orthosis according to the third embodiment, the first cuff and the first cuff band are rotatably provided on the inner lower arm and the outer lower arm. is there. According to the present embodiment, the expansion and contraction of the calves caused by the knee bending and stretching movements such as walking motion can be absorbed, and it is possible to wear for a long time without wearing discomfort and feeling free from binding.

本発明の第５の実施の形態は、第３又は第４の実施の形態による膝関節用装具において、内側上アームの上端部と外側上アームの上端部に取付ける大腿バンドを、後大腿部に配置される第２カフと、前大腿部に配置される第２カフバンドとで構成し、第２カフ及び第２カフバンドを、内側上アームと外側上アームとに回動自在に設けたものである。本実施の形態によれば、装具の支持力・矯正力を増強し、装着ズレがなく、長時間装着が可能で健常者同様の日常生活が可能で、装具の寸法サイズによる系列の簡略化ができ、外見的被視認性の改善に繋がる。 According to a fifth embodiment of the present invention, in the knee joint orthosis according to the third or fourth embodiment, a thigh band to be attached to the upper end portion of the inner upper arm and the upper end portion of the outer upper arm is provided. The second cuff disposed on the front thigh and the second cuff band disposed on the front thigh, and the second cuff and the second cuff band are provided rotatably on the inner upper arm and the outer upper arm. It is. According to the present embodiment, the support force / correction force of the orthosis is increased, there is no misalignment, it can be worn for a long time, and it can be a daily life like a healthy person, and the series can be simplified by the size size of the orthosis This leads to an improvement in appearance visibility.

本発明の第６の実施の形態は、第１から第５のいずれかの実施の形態による膝関節用装具において、リンク材に、伸展角度又は屈曲角度を規制する角度規制部材を設けたものである。本実施の形態によれば、角度規制部材を膝関節から離れた位置に設けることができるため、大きな負荷に耐えることができる。 In the sixth embodiment of the present invention, in the knee joint orthosis according to any one of the first to fifth embodiments, the link member is provided with an angle regulating member that regulates the extension angle or the bending angle. is there. According to the present embodiment, since the angle regulating member can be provided at a position away from the knee joint, it can withstand a large load.

以下、本発明の一実施例による膝関節用装具について図面を用いて説明する。
図１は実施例１による膝関節用装具の伸展状態での正面図、図２は同装置を少し屈曲させた状態での後方側面から見た斜視図、図３は同装置の屈曲状態での後方側面から見た斜視図である。
実施例１による膝関節用装具は、膝関節の外側に配置される外側支持機構１ａと、膝関節の内側に配置される内側支持機構１ｂと、外側支持機構１ａの上端側に回動自在に設けた外側上アーム１０ａと、外側支持機構１ａの下端側に回動自在に設けた外側下アーム２０ａと、内側支持機構１ｂの上端側に回動自在に設けた内側上アーム１０ｂと、内側支持機構１ｂの下端側に回動自在に設けた内側下アーム２０ｂとを備えている。 Hereinafter, a knee joint orthosis according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of the knee joint orthosis according to the first embodiment in an extended state, FIG. 2 is a perspective view seen from the rear side in a state where the device is bent slightly, and FIG. 3 is a view showing the device in a bent state. It is the perspective view seen from the back side.
The knee joint orthosis according to the first embodiment is rotatable to the upper end side of the outer support mechanism 1a disposed outside the knee joint, the inner support mechanism 1b disposed inside the knee joint, and the outer support mechanism 1a. The outer upper arm 10a provided, the outer lower arm 20a rotatably provided on the lower end side of the outer support mechanism 1a, the inner upper arm 10b rotatably provided on the upper end side of the inner support mechanism 1b, and the inner support An inner lower arm 20b that is rotatably provided on the lower end side of the mechanism 1b is provided.

大腿部に巻き付ける大腿バンド４１は、内側上アーム１０ｂの上端部及び外側上アーム１０ａの上端部に取り付けられている。また、下腿部に巻き付ける下腿バンド４２は、内側下アーム２０ｂの下端部及び外側下アーム２０ａの下端部に取り付けられている。
外側上アーム１０ａは、上端部に大腿バンド４１を取り付けるピン１２ａを有し、内側上アーム１０ｂは、上端部に大腿バンド４１を取り付けるピン１２ｂを有している。また、外側下アーム２０ａは、下端部に下腿バンド４２を取り付けるピン２２ａを有し、内側下アーム２０ｂは、下端部に下腿バンド４２を取り付けるピン２２ｂを有している。
大腿バンド４１は、ピン１２ａによって外側上アーム１０ａに対して回動可能に設けられ、ピン１２ｂによって内側上アーム１０ｂに対して回動可能に設けられている。また、下腿バンド４２は、ピン２２ａによって外側下アーム２０ａに対して回動可能に設けられ、ピン２２ｂによって内側下アーム２０ｂに対して回動可能に設けられている。 The thigh band 41 wound around the thigh is attached to the upper end of the inner upper arm 10b and the upper end of the outer upper arm 10a. The lower leg band 42 wound around the lower leg part is attached to the lower end part of the inner lower arm 20b and the lower end part of the outer lower arm 20a.
The outer upper arm 10a has a pin 12a for attaching the thigh band 41 to the upper end portion, and the inner upper arm 10b has a pin 12b for attaching the thigh band 41 to the upper end portion. The outer lower arm 20a has a pin 22a for attaching the lower leg band 42 to the lower end portion, and the inner lower arm 20b has a pin 22b for attaching the lower leg band 42 to the lower end portion.
The thigh band 41 is provided to be rotatable with respect to the outer upper arm 10a by a pin 12a, and is provided to be rotatable with respect to the inner upper arm 10b by a pin 12b. The lower leg band 42 is provided so as to be rotatable with respect to the outer lower arm 20a by a pin 22a, and is provided to be rotatable with respect to the inner lower arm 20b by a pin 22b.

懸垂ベルト４３は、大腿バンド４１と膝関節との間に巻き付けられるように配置される。外側懸垂アーム６０ａの上端部は、ピン６１ａにより外側上アーム１０ａの内側に取り付けられる。内側懸垂アーム６０ｂの上端部は、ピン６１ｂにより内側上アーム１０ｂの内側に取り付けられる。外側懸垂アーム６０ａの下端部及び内側懸垂アーム６０ｂの下端部には、懸垂ベルト４３が取り付けられる。外側懸垂アーム６０ａ及び内側懸垂アーム６０ｂは、板ばねなどのばね材で構成され、外側上アーム１０ａと身体との間、及び内側上アーム１０ｂと身体との間で弾性変形を行うように設けられている。 The suspension belt 43 is disposed so as to be wound between the thigh band 41 and the knee joint. The upper end portion of the outer suspension arm 60a is attached to the inner side of the outer upper arm 10a by a pin 61a. The upper end portion of the inner suspension arm 60b is attached to the inner upper arm 10b by a pin 61b. A suspension belt 43 is attached to the lower end of the outer suspension arm 60a and the lower end of the inner suspension arm 60b. The outer suspension arm 60a and the inner suspension arm 60b are made of a spring material such as a leaf spring, and are provided to elastically deform between the outer upper arm 10a and the body and between the inner upper arm 10b and the body. ing.

脹脛の最大膨れ部より上方の脹脛に配置される第１カフ４４は、内側下アーム２０ｂと外側下アーム２０ａとに設けている。また、脛骨側に配置される第１カフバンド４５は、内側下アーム２０ｂと外側下アーム２０ａとに設けている。
外側下アーム２０ａは、ピン２２ａよりも上方に第１カフ４４及び第１カフバンド４５を取り付けるピン２３ａを有し、内側下アーム２０ｂは、ピン２２ｂよりも上方に第１カフ４４及び第１カフバンド４５を取り付けるピン２３ｂを有している。
第１カフ４４及び第１カフバンド４５は、ピン２３ａによって外側下アーム２０ａに対して回動自在に設けられ、ピン２３ｂによって内側下アーム２０ｂに対して回動自在に設けられている。 The first cuff 44 disposed on the calf above the maximum swollen portion of the calf is provided on the inner lower arm 20b and the outer lower arm 20a. The first cuff band 45 arranged on the tibia side is provided on the inner lower arm 20b and the outer lower arm 20a.
The outer lower arm 20a has a pin 23a for attaching the first cuff 44 and the first cuff band 45 above the pin 22a, and the inner lower arm 20b has the first cuff 44 and the first cuff band 45 above the pin 22b. It has a pin 23b for attaching.
The first cuff 44 and the first cuff band 45 are rotatably provided with respect to the outer lower arm 20a by a pin 23a, and are rotatably provided with respect to the inner lower arm 20b by a pin 23b.

第１カフ４４は、所定幅の金属又は樹脂からなり、容易に変形しない剛性を有する。第１カフ４４の身体側には、第１カフバンド４５と同幅で第１カフ４４よりも幅の広い第１カフ当て４４ａを設けることが好ましい。特に、第１カフ４４は腓腹筋の上部に配置されるように外側下アーム２０ａ及び内側下アーム２０ｂの長さやピン２３ａ、２３ｂの位置が設定されていることが好ましい。
なお、第１カフ４４及び第１カフバンド４５はピン２３ａ、２３ｂによって外側下アーム２０ａ及び内側下アーム２０ｂに対して回動自在に設けられているため、脹脛の最大膨れ部に対する位置調整が可能である。
また、第１カフバンド４５によって締め付けると、脛骨と脹脛との間で締め付けられ、脹脛の側部同士は第１カフ４４の剛性によって間隔が保持されるために腓骨神経を締め付けることがなく、長期装着が可能となる。 The first cuff 44 is made of a metal or resin having a predetermined width and has a rigidity that does not easily deform. The first cuff 44 is preferably provided on the body side with a first cuff contact 44 a having the same width as the first cuff band 45 and wider than the first cuff 44. In particular, it is preferable that the length of the outer lower arm 20a and the inner lower arm 20b and the positions of the pins 23a and 23b are set so that the first cuff 44 is disposed on the upper part of the gastrocnemius.
Since the first cuff 44 and the first cuff band 45 are rotatably provided with respect to the outer lower arm 20a and the inner lower arm 20b by pins 23a and 23b, the position of the calf can be adjusted with respect to the maximum swollen portion. is there.
Further, when tightened by the first cuff band 45, it is tightened between the tibia and the calf, and the side portions of the calf are held apart by the rigidity of the first cuff 44. Is possible.

実施例１による膝関節用装具は、第１カフ４４及び第１カフバンド４５を、内側下アーム２０ｂと外側下アーム２０ａとに設けたことで、懸垂ベルト４３とともに、装着ズレの防止効果が大で、第１カフ４４に幅の広い第１カフ当て４４ａを設けることができ、この第１カフ当て４４ａ及び第１カフバンド４５によって柔らかく脹脛部をホールドするので装着違和感を軽減して長時間装着が可能である。
また、実施例１による膝関節用装具は、第１カフ４４及び第１カフバンド４５を、内側下アーム２０ｂと外側下アーム２０ａとに回動自在に設けているので、歩行動作など膝の屈伸運動などにより生じる脹脛の伸縮を吸収でき、装着ズレを生じることなく装着違和感・束縛感なく長時間装着が可能である。 In the knee joint orthosis according to the first embodiment, the first cuff 44 and the first cuff band 45 are provided on the inner lower arm 20b and the outer lower arm 20a. The first cuff 44 can be provided with a wide first cuff abutment 44a, and the calf portion is softly held by the first cuff abutment 44a and the first cuff band 45, so that the discomfort can be reduced for a long time. It is.
In the knee joint orthosis according to the first embodiment, the first cuff 44 and the first cuff band 45 are rotatably provided on the inner lower arm 20b and the outer lower arm 20a. It can absorb the expansion and contraction of the calves caused by the above, and it can be worn for a long time without wearing discomfort and restraint without causing wearing displacement.

実施例１における大腿バンド４１は、後大腿部に配置される第２カフ４６と、前大腿部に配置される第２カフバンド４７とで構成している。第２カフ４６及び第２カフバンド４７は、内側上アーム１０ｂと外側上アーム１０ａとの上端部に設けられている。第２カフ４６及び第２カフバンド４７は、ピン１２ａによって外側上アーム１０ａに対して回動自在に設けられ、ピン１２ｂによって内側上アーム１０ｂに対して回動自在に設けられている。
第２カフ４６は、所定幅の金属又は樹脂からなり、容易に変形しない剛性を有する。第２カフ４６の身体側には、第２カフバンド４７と同幅で第２カフ４６よりも幅の広い第２カフ当て４６ａを設けることが好ましい。
なお、第２カフ４６及び第２カフバンド４７はピン１２ａ、１２ｂによって外側上アーム１０ａ及び内側上アーム１０ｂに対して回動自在に設けられているため、大腿部に対する位置調整が可能である。 The thigh band 41 in the first embodiment includes a second cuff 46 disposed in the rear thigh and a second cuff band 47 disposed in the front thigh. The second cuff 46 and the second cuff band 47 are provided at upper ends of the inner upper arm 10b and the outer upper arm 10a. The second cuff 46 and the second cuff band 47 are rotatably provided with respect to the outer upper arm 10a by a pin 12a, and are rotatably provided with respect to the inner upper arm 10b by a pin 12b.
The second cuff 46 is made of a metal or resin having a predetermined width and has a rigidity that does not easily deform. It is preferable to provide a second cuff abutment 46 a having the same width as the second cuff band 47 and wider than the second cuff 46 on the body side of the second cuff 46.
The second cuff 46 and the second cuff band 47 are provided so as to be rotatable with respect to the outer upper arm 10a and the inner upper arm 10b by pins 12a and 12b, so that the position of the second cuff 46 and the second cuff band 47 can be adjusted.

実施例１による膝関節用装具は、第２カフ４６及び第２カフバンド４７を、内側上アーム１０ｂと外側上アーム１０ａとに回動自在に設けているので、装具の支持力・矯正力を増強し、装着ズレがなく、長時間装着が可能で健常者同様の日常生活が可能である。 In the knee joint orthosis according to the first embodiment, the second cuff 46 and the second cuff band 47 are rotatably provided on the inner upper arm 10b and the outer upper arm 10a, so that the support force / correction force of the orthosis is enhanced. In addition, there is no misalignment, and it can be worn for a long time, enabling daily life similar to a healthy person.

図４は実施例１による内側支持機構を示す側面図であり、図４（ａ）は屈曲状態での側面図、図４（ｂ）は同内側支持機構を少し伸展させた状態での側面図、図４（ｃ）は同内側支持機構の伸展状態での側面図である。
外側支持機構１ａは、４つのリンク材１０ａ、２０ａ、７１ａ、７２ａと４つのジョイント７３ａ、７４ａ、７５ａ、７６ａからなるリンク機構で構成している。 4A and 4B are side views showing the inner support mechanism according to the first embodiment. FIG. 4A is a side view in a bent state, and FIG. 4B is a side view in a state in which the inner support mechanism is slightly extended. FIG. 4C is a side view of the inner support mechanism in the extended state.
The outer support mechanism 1a includes a link mechanism including four link members 10a, 20a, 71a, 72a and four joints 73a, 74a, 75a, 76a.

外側支持機構１ａを構成するリンク機構において、外側上アーム１０ａと外側下アーム２０ａとが２つのリンク材を構成する。
第１外側上アームジョイント７３ａは、外側上アーム１０ａの下端部である第１外側上アーム位置に設けている。第２外側上アームジョイント７４ａは、外側上アーム１０ａの下端部から所定距離離れた第２外側上アーム位置に設けている。第１外側下アームジョイント７５ａは、外側下アーム２０ａの上端部の第１外側下アーム位置に設けている。第２外側下アームジョイント７６ａは、外側下アーム２０ａの上端部から所定距離離れた第２外側下アーム位置に設けている。
第１外側リンク材７１ａは、第１外側上アームジョイント７３ａに一端を接続し、第２外側下アームジョイント７６ａに他端を接続している。第２外側リンク材７２ａは、第１外側下アームジョイント７５ａに一端を接続し、第２外側上アームジョイント７４ａに他端を接続している。 In the link mechanism constituting the outer support mechanism 1a, the outer upper arm 10a and the outer lower arm 20a constitute two link members.
The first outer upper arm joint 73a is provided at the first outer upper arm position, which is the lower end portion of the outer upper arm 10a. The second outer upper arm joint 74a is provided at a second outer upper arm position that is a predetermined distance away from the lower end of the outer upper arm 10a. The first outer lower arm joint 75a is provided at the first outer lower arm position at the upper end of the outer lower arm 20a. The second outer lower arm joint 76a is provided at a second outer lower arm position that is a predetermined distance away from the upper end of the outer lower arm 20a.
The first outer link member 71a has one end connected to the first outer upper arm joint 73a and the other end connected to the second outer lower arm joint 76a. The second outer link member 72a has one end connected to the first outer lower arm joint 75a and the other end connected to the second outer upper arm joint 74a.

外側支持機構１ａは、図４（ｃ）に示す伸展状態において、第２外側上アームジョイント７４ａと第１外側上アームジョイント７３ａとの間隔、第１外側上アームジョイント７３ａと第１外側リンク材７１ａとの間隔、及び第１外側リンク材７１ａと第２外側下アームジョイント７６ａとの間隔が等しくなるように構成することで、４つのリンク材１０ａ、２０ａ、７１ａ、７２ａに作用する力が均等になり、強度を高めることができる。 In the extended state shown in FIG. 4C, the outer support mechanism 1a is configured such that the distance between the second outer upper arm joint 74a and the first outer upper arm joint 73a, the first outer upper arm joint 73a and the first outer link member 71a. , And the distance between the first outer link member 71a and the second outer lower arm joint 76a is equal, the forces acting on the four link members 10a, 20a, 71a, 72a are evenly distributed. The strength can be increased.

外側支持機構１ａは、外側上アーム１０ａ、外側下アーム２０ａ、第１外側リンク材７１ａ、及び第２外側リンク材７２ａでリンク材を構成している。
実施例１による膝関節用装具では、第１外側リンク材７１ａには突出部７７ａを設け、外側下アーム２０ａにはストッパー７８ａを設けている。突出部７７ａは、第２外側下アームジョイント７６ａの位置から更に第１外側リンク材７１ａを延出させている。ストッパー７８ａは、伸展状態で突出部７７ａに当接する。
突出部７７ａとストッパー７８ａとで構成される角度規制部材は、伸展角度を規制する。
なお、屈曲角度を規制する角度規制部材としては、例えば外側上アーム１０ａに、第１外側リンク材７１ａが当接するストッパー７９ａを設けることができる。
このように、実施例１による膝関節用装具では、リンク材１０ａ、２０ａ、７１ａ、７２ａに、伸展角度又は屈曲角度を規制する角度規制部材を容易に設けることができ、角度規制部材を膝関節から離れた位置に設けることができるため、大きな負荷に耐えることができる。 In the outer support mechanism 1a, the outer upper arm 10a, the outer lower arm 20a, the first outer link member 71a, and the second outer link member 72a constitute a link member.
In the knee joint orthosis according to the first embodiment, the first outer link member 71a is provided with a protrusion 77a, and the outer lower arm 20a is provided with a stopper 78a. The protruding portion 77a further extends the first outer link member 71a from the position of the second outer lower arm joint 76a. The stopper 78a abuts on the protrusion 77a in the extended state.
The angle restricting member constituted by the protruding portion 77a and the stopper 78a restricts the extension angle.
In addition, as an angle control member which controls a bending angle, the stopper 79a which the 1st outer side link material 71a contact | abuts can be provided in the outer side upper arm 10a, for example.
As described above, in the knee joint orthosis according to the first embodiment, the link members 10a, 20a, 71a, 72a can be easily provided with the angle regulating member that regulates the extension angle or the bending angle, and the angle regulating member is used as the knee joint. Since it can be provided at a position away from, it can withstand a large load.

なお、本実施例では、角度規制部材を突出部７７ａとストッパー７８ａとで構成したが、第１外側リンク材７１ａと第２外側リンク材７２ａとに長孔を形成し、第１外側リンク材７１ａの長孔と第２外側リンク材７２ａの長孔とにロック用のネジ付ピンを挿入することでも、伸展角度又は屈曲角度を任意に設定することができる。 In this embodiment, the angle restricting member is composed of the protruding portion 77a and the stopper 78a. However, the first outer link member 71a is formed with a long hole in the first outer link member 71a and the second outer link member 72a. The extension angle or the bending angle can be arbitrarily set by inserting a screw pin for locking into the long hole of the second outer link member 72a and the long hole of the second outer link member 72a.

実施例１による膝関節用装具によれば、４つのジョイント７３ａ、７４ａ、７５ａ、７６ａの仮想交点Ｘを膝関節に配置することで、膝関節の屈曲状態から伸展状態への動作に伴って、仮想交点Ｘに対して第２外側上アーム位置にある第２外側上アームジョイント７４ａは上方に移動し、仮想交点Ｘに対して第２外側下アーム位置にある第２外側下アームジョイント７６ａは下方に移動するため、伸展時に膝関節を上下に引き離す力が作用する。
伸展時に膝関節を上下に引き離す力が作用するため、膝関節への荷重負担を軽減でき、膝関節の痛みを和らげて歩行を促すことができる。
また実施例１による膝関節用装具によれば、膝関節の伸展状態から屈曲状態までの４つのジョイント７３ａ、７４ａ、７５ａ、７６ａの仮想交点Ｘの位置の平行移動量Ｌを小さくできるため、膝関節を屈曲させた状態での外側支持機構（リンク機構）１ａの膝関節からの出っ張りを小さくでき、また異なる平面内に複数のリンク材が配置されるため外側支持機構１ａの強度を高めることができる。 According to the knee joint orthosis according to the first embodiment, by arranging the virtual intersection point X of the four joints 73a, 74a, 75a, and 76a in the knee joint, along with the operation of the knee joint from the bent state to the extended state, The second outer upper arm joint 74a located at the second outer upper arm position with respect to the virtual intersection X moves upward, and the second outer lower arm joint 76a located at the second outer lower arm position with respect to the virtual intersection X is lowered. Therefore, a force acts to pull the knee joint up and down during extension.
Since the force that pulls the knee joint up and down acts during extension, the load on the knee joint can be reduced, and the knee joint pain can be eased and walking can be promoted.
Further, according to the knee joint orthosis according to the first embodiment, the parallel movement amount L of the position of the virtual intersection X of the four joints 73a, 74a, 75a, and 76a from the extended state to the bent state of the knee joint can be reduced. The protrusion from the knee joint of the outer support mechanism (link mechanism) 1a in a state where the joint is bent can be reduced, and a plurality of link members are arranged in different planes, so that the strength of the outer support mechanism 1a can be increased. it can.

なお、内側支持機構１ｂは、外側支持機構１ａと同様であるため詳細な説明を省略するが、図１から図３に示すように、内側支持機構１ｂは、内側上アーム１０ｂ、内側下アーム２０ｂ、第１内側リンク材７１ｂ、及び第２内側リンク材７２ｂからなる４つのリンク材と、第１内側上アームジョイント７３ｂ、第２内側上アームジョイント７４ｂ、第１内側下アームジョイント７５ｂ、及び第２内側下アームジョイント７６ｂからなる４つのジョイントとでリンク機構で構成している。 The inner support mechanism 1b is the same as the outer support mechanism 1a and will not be described in detail. However, as shown in FIGS. 1 to 3, the inner support mechanism 1b includes an inner upper arm 10b and an inner lower arm 20b. , Four link members composed of the first inner link member 71b and the second inner link member 72b, the first inner upper arm joint 73b, the second inner upper arm joint 74b, the first inner lower arm joint 75b, and the second A link mechanism is formed by four joints including the inner lower arm joint 76b.

図５は実施例２による膝関節用装具の伸展状態での正面図、図６は同装置を少し屈曲させた状態での後方側面から見た斜視図、図７は同装置の屈曲状態での後方側面から見た斜視図である。
実施例２による膝関節用装具は、外側支持機構１ａと内側支持機構１ｂの構成が異なる以外には同一であるため、実施例１と同一符号を付して説明を省略する。 FIG. 5 is a front view of the knee joint orthosis according to the second embodiment in an extended state, FIG. 6 is a perspective view of the device viewed from the rear side in a slightly bent state, and FIG. 7 is a bent state of the device. It is the perspective view seen from the back side.
The knee joint orthosis according to the second embodiment is the same except that the configuration of the outer support mechanism 1a and the inner support mechanism 1b is different.

図８は実施例２による内側支持機構を示す側面図であり、図８（ａ）は伸展状態での側面図、図８（ｂ）は同内側支持機構を少し屈曲させた状態での側面図、図８（ｃ）は同内側支持機構の屈曲状態での側面図である。
外側支持機構１ａは、４つのリンク材１０ａ、２０ａ、７１ａ、７２ａと４つのジョイント７４ａ、７６ａ、８１ａ、８２ａからなるリンク機構で構成している。 8A and 8B are side views showing the inner support mechanism according to the second embodiment. FIG. 8A is a side view in an extended state, and FIG. 8B is a side view in a state where the inner support mechanism is slightly bent. FIG. 8C is a side view of the inner support mechanism in a bent state.
The outer support mechanism 1a is configured by a link mechanism including four link members 10a, 20a, 71a, 72a and four joints 74a, 76a, 81a, 82a.

外側支持機構１ａを構成するリンク機構において、外側上アーム１０ａと外側下アーム２０ａとが２つのリンク材を構成する。
第１外側上アームジョイント７３ａは、外側上アーム１０ａの下端部である第１外側上アーム位置に設けている。第２外側上アームジョイント７４ａは、外側上アーム１０ａの下端部から所定距離離れた第２外側上アーム位置に設けている。第１外側下アームジョイント７５ａは、外側下アーム２０ａの上端部の第１外側下アーム位置に設けている。第２外側下アームジョイント７６ａは、外側下アーム２０ａの上端部から所定距離離れた第２外側下アーム位置に設けている。
ただし、実施例２による外側支持機構１ａでは、第１外側上アームジョイント７３ａと第１外側下アームジョイント７５ａとを同じ位置として第１外側アームジョイント８１ａを構成している。
第１外側リンク材７１ａは、第２外側上アームジョイント７４ａに一端を接続している。第２外側リンク材７２ａは、第２外側下アームジョイント７６ａに一端を接続している。
第１外側リンク材７１ａの他端と第２外側リンク材７２ａの他端とは、外側リンクジョイント８２ａで接続している。 In the link mechanism constituting the outer support mechanism 1a, the outer upper arm 10a and the outer lower arm 20a constitute two link members.
The first outer upper arm joint 73a is provided at the first outer upper arm position, which is the lower end portion of the outer upper arm 10a. The second outer upper arm joint 74a is provided at a second outer upper arm position that is a predetermined distance away from the lower end of the outer upper arm 10a. The first outer lower arm joint 75a is provided at the first outer lower arm position at the upper end of the outer lower arm 20a. The second outer lower arm joint 76a is provided at a second outer lower arm position that is a predetermined distance away from the upper end of the outer lower arm 20a.
However, in the outer support mechanism 1a according to the second embodiment, the first outer arm joint 81a is configured with the first outer upper arm joint 73a and the first outer lower arm joint 75a at the same position.
The first outer link member 71a has one end connected to the second outer upper arm joint 74a. The second outer link member 72a has one end connected to the second outer lower arm joint 76a.
The other end of the first outer link member 71a and the other end of the second outer link member 72a are connected by an outer link joint 82a.

外側支持機構１ａは、外側上アーム１０ａ、外側下アーム２０ａ、第１外側リンク材７１ａ、及び第２外側リンク材７２ａでリンク材を構成している。
実施例２による膝関節用装具では、例えば、外側下アーム２０ａに、伸展状態で第２外側リンク材７２ａに当接する角度規制部材８３ａを設けることで伸展角度を規制することができる。また、例えば外側上アーム１０ａに、屈曲状態で第２外側リンク材７２ａに当接する角度規制部材８４ａを設けることで屈曲角度を規制することができる。
このように、実施例２による膝関節用装具では、リンク材１０ａ、２０ａ、７１ａ、７２ａに、伸展角度又は屈曲角度を規制する角度規制部材８３ａ、８４ａを容易に設けることができ、角度規制部材８３ａ、８４ａを膝関節から離れた位置に設けることができるため、大きな負荷に耐えることができる。 In the outer support mechanism 1a, the outer upper arm 10a, the outer lower arm 20a, the first outer link member 71a, and the second outer link member 72a constitute a link member.
In the knee joint orthosis according to the second embodiment, for example, the extension angle can be regulated by providing the outer lower arm 20a with an angle regulating member 83a that contacts the second outer link member 72a in the extended state. Further, for example, the angle of bending can be regulated by providing the outer upper arm 10a with an angle regulating member 84a that contacts the second outer link member 72a in a bent state.
Thus, in the knee joint orthosis according to the second embodiment, the link members 10a, 20a, 71a, 72a can be easily provided with the angle restricting members 83a, 84a for restricting the extension angle or the bending angle. Since 83a and 84a can be provided in the position away from the knee joint, it can endure a large load.

実施例２による膝関節用装具によれば、４つのジョイント７４ａ、７６ａ、８１ａ、８２ａの仮想交点Ｘを膝関節に配置することで、膝関節の屈曲状態から伸展状態への動作に伴って、仮想交点Ｘに対して第２外側上アーム位置にある第２外側上アームジョイント７４ａは上方に移動し、仮想交点Ｘに対して第２外側下アーム位置にある第２外側下アームジョイント７６ａは下方に移動するため、伸展時に膝関節を上下に引き離す力が作用する。
伸展時に膝関節を上下に引き離す力が作用するため、膝関節への荷重負担を軽減でき、膝関節の痛みを和らげて歩行を促すことができる。
また実施例２による膝関節用装具によれば、第１外側リンク材７１ａと第１外側下アーム７２ａとを同一平面内で平行に配置し、第２外側リンク材７２ａと第１外側上アーム１０ａとを同一平面内で平行に配置することができるため、外側支持機構１ａの強度を高めることができる。 According to the knee joint orthosis according to the second embodiment, by arranging the virtual intersection X of the four joints 74a, 76a, 81a, and 82a in the knee joint, along with the operation from the knee joint flexion state to the extension state, The second outer upper arm joint 74a located at the second outer upper arm position with respect to the virtual intersection X moves upward, and the second outer lower arm joint 76a located at the second outer lower arm position with respect to the virtual intersection X is lowered. Therefore, a force acts to pull the knee joint up and down during extension.
Since the force that pulls the knee joint up and down acts during extension, the load on the knee joint can be reduced, and the knee joint pain can be eased and walking can be promoted.
Further, according to the knee joint orthosis according to the second embodiment, the first outer link member 71a and the first outer lower arm 72a are arranged in parallel in the same plane, and the second outer link member 72a and the first outer upper arm 10a are arranged. Can be arranged in parallel in the same plane, the strength of the outer support mechanism 1a can be increased.

なお、内側支持機構１ｂは、外側支持機構１ａと同様であるため詳細な説明を省略するが、図５から図７に示すように、内側支持機構１ｂは、内側上アーム１０ｂ、内側下アーム２０ｂ、第１内側リンク材７１ｂ、及び第２内側リンク材７２ｂからなる４つのリンク材と、第１内側下アームジョイント７５ｂ、第２内側下アームジョイント７６ｂ、第１内側アームジョイント８１ｂ、及び内側リンクジョイント８２ｂからなる４つのジョイントとでリンク機構で構成している。 Since the inner support mechanism 1b is the same as the outer support mechanism 1a, detailed description thereof is omitted. However, as shown in FIGS. 5 to 7, the inner support mechanism 1b includes an inner upper arm 10b and an inner lower arm 20b. , Four link members composed of the first inner link member 71b and the second inner link member 72b, the first inner lower arm joint 75b, the second inner lower arm joint 76b, the first inner arm joint 81b, and the inner link joint. The four joints consisting of 82b constitute a link mechanism.

以上のように、本実施例による膝関節用装具によれば、関節部を引き離すことで半月板損傷に起因する激痛を和らげ、靱帯損傷の場合には歩行動作などの運動時に関節部の免荷と損傷靱帯をガードすることで関節傷害の短期回復を可能とすることができる。 As described above, according to the knee joint orthosis according to this embodiment, the severe pain caused by meniscal injury is eased by separating the joint, and in the case of ligament injury, the joint is exempted during exercise such as walking motion. By guarding the damaged ligament, it is possible to make a short-term recovery of joint injury possible.

本発明は、半身麻痺のリハビリやポリオなどの反張膝用、Ｏ脚、Ｘ脚や関節リュウマチなどの変形性関節用、靱帯損傷や半月板損傷などのスポーツ用としてだけでなく膝に負担のかかる作業者にも広く用いることができる。 The present invention is not only used for reflexive knees such as rehabilitation and polio for hemiplegia, for deformable joints such as O-legs, X-legs and rheumatoid arthritis, and for sports such as ligament damage and meniscus damage. It can be widely used for such workers.

１ａ外側支持機構
１ｂ内側支持機構
１０ａ外側上アーム（リンク材）
１０ｂ内側上アーム（リンク材）
２０ａ外側下アーム（リンク材）
２０ｂ内側下アーム（リンク材）
４１大腿バンド
４２下腿バンド
４３懸垂ベルト
４４第１カフ
４５第１カフバンド
４６第２カフ
４７第２カフバンド
７１ａ第１外側リンク材
７１ｂ第１内側リンク材
７２ａ第２外側リンク材
７２ｂ第２内側リンク材
７３ａ第１外側上アームジョイント
７３ｂ第１内側上アームジョイント
７４ａ第２外側上アームジョイント
７４ｂ第２内側上アームジョイント
７５ａ第１外側下アームジョイント
７５ｂ第１内側下アームジョイント
７６ａ第２外側下アームジョイント
７６ｂ第２内側下アームジョイント
７７ａ突出部
７８ａストッパー
７９ａストッパー
８１ａ第１外側アームジョイント
８１ｂ第１内側アームジョイント
８２ａ外側リンクジョイント
８２ｂ内側リンクジョイント
Ｘ仮想交点（内側仮想交点、外側仮想交点） 1a outer support mechanism 1b inner support mechanism 10a outer upper arm (link material)
10b Inner upper arm (link material)
20a Outer lower arm (link material)
20b Inner lower arm (link material)
41 Thigh Band 42 Lower Thigh Band 43 Suspension Belt 44 First Cuff 45 First Cuff Band 46 Second Cuff 47 Second Cuff Band 71a First Outer Link Material 71b First Inner Link Material 72a Second Outer Link Material 72b Second Inner Link Material 73a First outer upper arm joint 73b First inner upper arm joint 74a Second outer upper arm joint 74b Second inner upper arm joint 75a First outer lower arm joint 75b First inner lower arm joint 76a Second outer lower arm joint 76b First 2 Inner lower arm joint 77a Protruding part 78a Stopper 79a Stopper 81a First outer arm joint 81b First inner arm joint 82a Outer link joint 82b Inner link joint
X Virtual intersection (inner virtual intersection, outer virtual intersection)

Claims

An inner support mechanism disposed inside the knee joint;
An outer support mechanism disposed outside the knee joint;
An inner upper arm rotatably provided on the upper end side of the inner support mechanism;
An inner lower arm rotatably provided at a lower end side of the inner support mechanism;
An outer upper arm rotatably provided on the upper end side of the outer support mechanism;
An outer lower arm rotatably provided at a lower end side of the outer support mechanism;
A knee joint orthosis comprising:
The inner support mechanism and the outer support mechanism are each composed of a link mechanism including four link members and four joints,
In the link mechanism constituting the inner support mechanism, the inner upper arm and the inner lower arm constitute the two link members,
A first inner upper arm position at a lower end portion of the inner upper arm, a second inner upper arm position at a predetermined distance from the lower end portion of the inner upper arm, a first inner lower arm position at an upper end portion of the inner lower arm, And each of the four joints at a second inner lower arm position at a predetermined distance from the upper end of the inner lower arm,
In the link mechanism constituting the outer support mechanism, the outer upper arm and the outer lower arm constitute the two link members,
A first outer upper arm position at the lower end of the outer upper arm, a second outer upper arm position at a predetermined distance from the lower end of the outer upper arm, a first outer lower arm position at the upper end of the outer lower arm, And each of the four joints at a second outer lower arm position that is a predetermined distance away from the upper end of the outer lower arm,
The joint provided at the first inner upper arm position is a first inner upper arm joint,
The joint provided at the second inner upper arm position is a second inner upper arm joint,
The joint provided at the first inner lower arm position is a first inner lower arm joint,
The joint provided at the second inner lower arm position is a second inner lower arm joint,
A first inner link member connecting one end to the first inner upper arm joint and connecting the other end to the second inner lower arm joint;
A second inner link member connecting one end to the first inner lower arm joint and connecting the other end to the second inner upper arm joint;
Provided,
The inner upper arm, the inner lower arm, the first inner link member, and the second inner link member each constitute the four link members,
The joint provided at the first outer upper arm position is referred to as a first outer upper arm joint,
The joint provided at the second outer upper arm position is a second outer upper arm joint,
The joint provided at the first outer lower arm position is a first outer lower arm joint,
The joint provided at the second outer lower arm position is a second outer lower arm joint,
A first outer link member connecting one end to the first outer upper arm joint and connecting the other end to the second outer lower arm joint;
A second outer link member connecting one end to the first outer lower arm joint and connecting the other end to the second outer upper arm joint;
Provided,
The outer upper arm, the outer lower arm, the first outer link material, and the second outer link material each constitute four link materials ,
An inner first imaginary line connecting the first inner upper arm joint and the second inner lower arm joint, and an inner second imaginary line connecting the first inner lower arm joint and the second inner upper arm joint. Inside virtual intersection,
as well as
An outer first imaginary line connecting the first outer upper arm joint and the second outer lower arm joint, and an outer second imaginary line connecting the first outer lower arm joint and the second outer upper arm joint. Outer virtual intersection
Is a position for placing the knee joint,
With the movement of the knee joint from the bent state to the extended state,
The second inner upper arm joint and the second outer upper arm joint move upward with respect to the inner virtual intersection and the outer virtual intersection,
The inner virtual intersection and knee orthosis you wherein <br/> said second inner lower arm joint and the second outer lower arm joint relative to the outer virtual intersection which moves downward.

An inner support mechanism disposed inside the knee joint;
An outer support mechanism disposed outside the knee joint;
An inner upper arm rotatably provided on the upper end side of the inner support mechanism;
An inner lower arm rotatably provided at a lower end side of the inner support mechanism;
An outer upper arm rotatably provided on the upper end side of the outer support mechanism;
An outer lower arm rotatably provided at a lower end side of the outer support mechanism;
A knee joint orthosis comprising:
The inner support mechanism and the outer support mechanism are each composed of a link mechanism including four link members and four joints,
In the link mechanism constituting the inner support mechanism, the inner upper arm and the inner lower arm constitute the two link members,
A first inner upper arm position at a lower end portion of the inner upper arm, a second inner upper arm position at a predetermined distance from the lower end portion of the inner upper arm, a first inner lower arm position at an upper end portion of the inner lower arm, And each of the four joints at a second inner lower arm position at a predetermined distance from the upper end of the inner lower arm,
In the link mechanism constituting the outer support mechanism, the outer upper arm and the outer lower arm constitute the two link members,
A first outer upper arm position at the lower end of the outer upper arm, a second outer upper arm position at a predetermined distance from the lower end of the outer upper arm, a first outer lower arm position at the upper end of the outer lower arm, And each of the four joints at a second outer lower arm position that is a predetermined distance away from the upper end of the outer lower arm,
The joint provided at the first inner upper arm position is a first inner upper arm joint,
The joint provided at the second inner upper arm position is a second inner upper arm joint,
The joint provided at the first inner lower arm position is a first inner lower arm joint,
The joint provided at the second inner lower arm position is a second inner lower arm joint,
A first inner link member connecting one end to the second inner upper arm joint;
A second inner link member connecting one end to the second inner lower arm joint;
Provided,
The first inner arm joint is configured with the first inner upper arm joint and the first inner lower arm joint in the same position,
Connecting the other end of the first inner link member and the other end of the second inner link member with an inner link joint;
The inner upper arm, the inner lower arm, the first inner link member, and the second inner link member each constitute the four link members,
The joint provided at the first outer upper arm position is referred to as a first outer upper arm joint,
The joint provided at the second outer upper arm position is a second outer upper arm joint,
The joint provided at the first outer lower arm position is a first outer lower arm joint,
The joint provided at the second outer lower arm position is a second outer lower arm joint,
A first outer link member connecting one end to the second outer upper arm joint;
A second outer link member connecting one end to the second outer lower arm joint;
Provided,
Configuring the first outer arm joint and the first outer arm joint in the same position as the first outer arm joint;
Connecting the other end of the first outer link member and the other end of the second outer link member with an outer link joint,
The outer upper arm, the outer lower arm, the first outer link material, and the second outer link material each constitute four link materials ,
An inner virtual intersection point between an inner first virtual line connecting the first inner arm joint and the inner link joint and an inner second virtual line connecting the second inner upper arm joint and the second inner lower arm joint;
as well as
An outer virtual intersection of an outer first virtual line connecting the first outer arm joint and the outer link joint and an outer second virtual line connecting the second outer upper arm joint and the second outer lower arm joint;
Is a position for placing the knee joint,
With the movement of the knee joint from the bent state to the extended state,
The second inner upper arm joint and the second outer upper arm joint move upward with respect to the inner virtual intersection and the outer virtual intersection,
The inner virtual intersection and knee orthosis you wherein <br/> said second inner lower arm joint and the second outer lower arm joint relative to the outer virtual intersection which moves downward.

A first cuff disposed on the calf above the maximum bulge of the calf;
A first cuff band disposed on the tibia side and an inner suspension arm having an upper end connected to the inner side of the inner upper arm;
An outer suspension arm having an upper end connected to the inside of the outer upper arm;
A suspension belt attached to the lower end of the inner suspension arm and the lower end of the outer suspension arm;
The knee joint orthosis according to claim 1 or 2 , wherein the first cuff and the first cuff band are provided on the inner lower arm and the outer lower arm.

The knee joint orthosis according to claim 3 , wherein the first cuff and the first cuff band are rotatably provided on the inner lower arm and the outer lower arm.

A thigh band attached to the upper end portion of the inner upper arm and the upper end portion of the outer upper arm is composed of a second cuff disposed on the rear thigh and a second cuff band disposed on the front thigh, The knee joint orthosis according to claim 3 or 4 , wherein the second cuff and the second cuff band are rotatably provided on the inner upper arm and the outer upper arm.

The knee joint orthosis according to any one of claims 1 to 5 , wherein the link member is provided with an angle regulating member for regulating an extension angle or a bending angle.