JP6312908B1 - Finger training equipment - Google Patents
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- JP6312908B1 JP6312908B1 JP2017121737A JP2017121737A JP6312908B1 JP 6312908 B1 JP6312908 B1 JP 6312908B1 JP 2017121737 A JP2017121737 A JP 2017121737A JP 2017121737 A JP2017121737 A JP 2017121737A JP 6312908 B1 JP6312908 B1 JP 6312908B1
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Abstract
【課題】 手指の屈伸運動時において、手指の伸展方向に負荷を与えて筋力を強化できるだけでなく、ＩＰ関節の屈伸運動に対する負荷とＭＰ関節の屈伸運動に対する負荷を個別に調整できる負荷調整機能に優れた手指訓練用器具を提供すること。【解決手段】 手甲型装着具１と；リング部材21及び一対の線バネ部材22・22を備えた指輪型装着具２・２…と；伸縮性を有する環状エラストマー部材３・３…とを含んで手指訓練用器具を構成する一方、前記手甲型装着具１の本体部、及び前記指輪型装着具２のリング部材21に、それぞれ対となるフック部Ｆ・Ｆ’を設けて、これらのフック部Ｆ・Ｆ’に、前記環状エラストマー部材３を掛けることにより装着状態の手甲型装着具１と指輪型装着具２とを連結可能に構成した。【選択図】 図１PROBLEM TO BE SOLVED: To provide a load adjustment function capable of individually adjusting a load for an IP joint bending and stretching and a load for an MP joint bending and stretching during a finger bending and stretching exercise in addition to applying a load in a finger extending direction To provide excellent hand training equipment. SOLUTION: A back-type wearing tool 1; a ring-type wearing tool 2 · 2 provided with a ring member 21 and a pair of wire spring members 22 · 22; and an annular elastomer member 3 · 3 ··· having elasticity. Are formed on the body portion of the back-type wearing device 1 and the ring member 21 of the ring-type wearing device 2 with a pair of hook portions FF ', respectively. By attaching the annular elastomer member 3 to the portions F and F ′, the hand-mounted wearing tool 1 and the ring-type wearing tool 2 in a worn state can be connected. [Selection] Figure 1
Description
本発明は、手指訓練用器具の改良、詳しくは、手指の筋力を強化できるだけでなく、痙縮のある患者の筋肉の過緊張(こわばり)を抑制して手指の屈伸運動を補助することができ、またＩＰ関節の屈伸運動に対する負荷調整とＭＰ関節の屈伸運動に対する負荷調整を個別に行える手指訓練用器具に関するものである。 The present invention is an improvement of a finger training device, specifically, not only can strengthen the muscle strength of the finger, but also can suppress the overstraining (stiffness) of the muscles of patients with spasticity and assist the bending and stretching movement of the finger, The present invention also relates to a finger training instrument that can individually perform load adjustment for bending and stretching movements of IP joints and load adjustment for bending and stretching movements of MP joints.
周知のとおり、医療分野では、病気や怪我によって手指の屈伸運動(物を掴んだり、摘まんだりする運動)がスムーズに行えなくなった患者に対し、手指を運動機能を回復するための訓練(リハビリテーション、以下「リハビリ」と呼称)が行われる。またこのリハビリに関しては、単純に弱った手指の筋力を強化する訓練だけでなく、脳血管障害による上肢麻痺を改善するための訓練なども含まれる。 As is well known, in the medical field, training (rehabilitation) to restore the motor function of the fingers for patients who have been unable to smoothly perform flexion and extension of the fingers (movement to grab or pick objects) due to illness or injury. Hereinafter referred to as “rehabilitation”). In addition, this rehabilitation includes not only training to strengthen weakened finger muscle strength but also training to improve upper limb paralysis due to cerebrovascular disorder.
一方、従来においては、上記手指の屈伸運動の訓練を補助するためのツールとして、様々なリハビリ用器具が開発されており、例えば、特許文献１〜３中には、手首に装着される固定具から伸びたゴム紐の先端側のリング等を手指に装着することによって、手指の屈伸運動に負荷を与える(または手指を伸展方向に牽引する)技術が開示されてる。 On the other hand, conventionally, various rehabilitation instruments have been developed as tools for assisting in the exercise of bending and stretching movements of the fingers. For example, in Patent Documents 1 to 3, a fixing tool attached to the wrist is used. A technique for applying a load (or pulling a finger in the extending direction) by applying a ring or the like on the distal end side of a rubber string extending from the finger to the finger is disclosed.
しかしながら、上記ゴム紐を利用した従来技術に関しては、ＭＰ関節の屈伸運動に対する負荷(牽引力)とＩＰ関節の屈伸運動に対する負荷を同じ弾性部材(ゴム紐)によって付与していたため、これらの各関節の屈伸運動に対する負荷を個別に調整することができなかった。そのため、患者によって手指の状態が異なるリハビリにおいて、患者に合わせて細かく負荷調節が行えないという欠点があった。 However, with respect to the prior art using the rubber cord, the load (traction force) for the bending and stretching motion of the MP joint and the load for the bending and stretching motion of the IP joint are applied by the same elastic member (rubber cord). The load for flexion and extension could not be adjusted individually. For this reason, in rehabilitation in which the state of fingers differs depending on the patient, there is a drawback that the load cannot be finely adjusted according to the patient.
加えて、上記従来技術は、手指の屈伸運動に対する負荷をゴム紐に頼る構造であったため、負荷の方向や大きさを細かく調整することもできなかった。そのため、上肢麻痺等により手指のＩＰ関節が曲がった状態で拘縮した患者に対して、患者の手指の屈曲状態に合わせて負荷の方向や大きさを部分的に調整することができなかった。 In addition, since the conventional technique has a structure that relies on a rubber string for the load on the bending and stretching movements of the fingers, the direction and size of the load could not be finely adjusted. Therefore, for a patient contracted in a state where the IP joint of the finger is bent due to paralysis of the upper limb or the like, the direction and size of the load could not be partially adjusted according to the bending state of the patient's finger.
また従来においては、特許文献４中に記載されているような弾性部材に金属ワイヤを利用したリハビリ用器具も公知となっているが、この従来技術に関しても、ゴム紐を利用した従来技術と同様、ＩＰ関節とＭＰ関節の屈伸運動に対する個別の負荷調整が行えないだけでなく、金属ワイヤが手指から離れた位置に配置されていたため、負荷の方向を手指の屈伸方向に沿って正確に調整することができなかった。 Conventionally, a rehabilitation instrument using a metal wire as an elastic member as described in Patent Document 4 is also known, but this conventional technique is similar to the conventional technique using a rubber string. In addition to not being able to perform individual load adjustments for the bending and stretching movements of the IP joint and the MP joint, since the metal wire is arranged at a position away from the finger, the load direction is accurately adjusted along the bending and stretching direction of the finger. I couldn't.
本発明は、上記の如き問題に鑑みて為されたものであり、その目的とするところは、手指の屈伸運動時において、手指の伸展方向に負荷を与えて筋力を強化できるだけでなく、手指の牽引によって痙縮のある患者でも筋肉の過緊張を抑制することができ、しかも、ＩＰ関節の屈伸運動に対する負荷とＭＰ関節の屈伸運動に対する負荷を個別に調整できる負荷調整機能に優れた手指訓練用器具を提供することにある。 The present invention has been made in view of the problems as described above, and the object of the present invention is not only to strengthen muscle strength by applying a load in the direction of finger extension during finger flexion and extension movement, Even if the patient has spasticity by traction, it can suppress muscle over-tension, and it has excellent load adjustment function that can individually adjust the load on the bending and stretching movements of the IP joint and the bending and stretching movements of the MP joint. Is to provide.
本発明者が上記課題を解決するために採用した手段を添付図面を参照して説明すれば次のとおりである。 Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.
即ち、本発明は、手指の屈伸運動を補助するために手に装着して使用される手指訓練用器具において、手首部分に装着可能な硬質材料から成る本体部を備え、かつ、この本体部が手の甲部分を被覆可能な形状を成す手甲型装着具１と；手指の付け根部分に装着可能な硬質材料から成るリング部材21、及び手指の両側に沿って並行に配置される一対の線バネ部材22・22を備え、かつ、前記一対の線バネ部材22・22の基端側がリング部材21に固定されると共に、先端側が指掛け部23を介してＵ型に連結された指輪型装着具２・２…と；伸縮性を有する環状エラストマー部材３・３…とを含んで構成する一方、前記手甲型装着具１の本体部、及び前記指輪型装着具２のリング部材21に、それぞれ対となるフック部Ｆ・Ｆ’を設けて、これらのフック部Ｆ・Ｆ’に、前記環状エラストマー部材３を掛けることにより装着状態の手甲型装着具１と指輪型装着具２とを連結可能とした点に特徴がある。 That is, the present invention provides a finger training instrument used by being attached to a hand to assist bending and stretching movements of a finger, and includes a main body portion made of a hard material that can be attached to a wrist portion, and the main body portion is A hand-type mounting device 1 having a shape capable of covering the back part of the hand; a ring member 21 made of a hard material that can be attached to the base part of the finger, and a pair of wire spring members 22 arranged in parallel along both sides of the finger A ring-type mounting device 2, 2 including a pair of wire spring members 22, 22 fixed to the ring member 21, and having a distal end side connected to a U shape via a finger hook 23. ..; And including a ring-shaped elastomer member 3, 3... Having stretchability, and a pair of hooks on the main body portion of the back-type wearing device 1 and the ring member 21 of the ring-type wearing device 2. By providing the parts F and F ', these hook parts F It is characterized in that by attaching the annular elastomer member 3 to F ′, the hand-mounted wearing tool 1 and the ring-type wearing tool 2 in a worn state can be connected.
また上記手甲型装着具１の本体部のフック部Ｆに関しては、装着時において対となるフック部Ｆ’を備えたリング部材21が装着された手指のＭＰ関節またはその近傍を被覆する部位に設けることで、環状エラストマー部材３で連結した際、指の動作方向に沿って適切な方向に負荷を与えることができる。 Further, the hook part F of the main body part of the hand-mounted wearing tool 1 is provided at a part covering the MP joint of the finger or the vicinity where the ring member 21 provided with the hook part F ′ which is paired at the time of wearing is attached. Thereby, when it connects with the cyclic | annular elastomer member 3, a load can be given to an appropriate direction along the operation | movement direction of a finger | toe.
また本発明では、上記指輪型装着具２の線バネ部材22・22として、コイルバネやトーションバネよりも負荷の方向が調整し易く、かつ、手指間の狭いスペースにも無理なく配置できる形状記憶合金から成る非螺旋形の線材を使用するのが好ましい。 Further, in the present invention, the shape spring alloy that can be easily arranged in a narrow space between fingers as the wire spring members 22 and 22 of the ring-type wearing tool 2 can be adjusted more easily than the coil spring or the torsion spring. It is preferred to use a non-spiral wire consisting of
また本発明では、上記指輪型装着具２として、四本の手指の訓練を同時に行うことができるように、少なくとも人差し指用、中指用、薬指用および小指用の指輪型装着具２・２…を含んで構成するのが好ましい。 Further, in the present invention, as the ring-type wearing device 2, at least for the index finger, middle finger, ring finger, and little finger ring-type wearing devices 2, 2... So that four fingers can be trained simultaneously. It is preferable to include it.
また本発明では、上記手甲型装着具１の本体部の材料として熱可塑性樹脂を使用して、本体部を手首および手の甲の形状に沿った湾曲形状に成形することができ、これによりフィット感に優れるだけでなく環状エラストマー部材４による負荷の方向を使用者の手の形状に合わせて正確に調整できる。また熱可塑性樹脂を使用することで装着時に金属のような冷たさを感じる問題も生じない。 Further, in the present invention, the thermoplastic resin is used as the material of the main body of the back-type mounting tool 1, and the main body can be formed into a curved shape along the shape of the wrist and the back of the hand. In addition to being excellent, the direction of the load by the annular elastomer member 4 can be accurately adjusted according to the shape of the user's hand. Further, the use of a thermoplastic resin does not cause a problem of feeling cold like a metal at the time of mounting.
また本発明では、上記指輪型装着具２の指掛け部23を線バネ部材22・22よりも太く形成することができ、これによって手指との接触面積を大きくして圧力を分散させることで指掛け部23の手指への食い込みを防止できるため、長時間使用しても手指が痛くなり難い。 Further, in the present invention, the finger-holding portion 23 of the ring-type wearing tool 2 can be formed thicker than the wire spring members 22 and 22, thereby increasing the contact area with the fingers and distributing the pressure to thereby spread the finger-hanging portion. Since it can prevent biting into 23 fingers, the fingers are unlikely to hurt even if used for a long time.
本発明の手指訓練用器具では、指輪型装着具の線バネ部材と、指輪型装着具と手甲型装着具を連結する環状エラストマー部材とによって手指の屈伸運動に対し伸展方向に負荷を与えることができるため、筋抵抗運動により手指の筋力を強化できるだけでなく、痙縮のある患者のリハビリにおいて、手指を伸展方向に牽引して筋肉の過緊張を抑制しつつ手指の運動を補助することができる。 In the finger training instrument of the present invention, a load can be applied to the bending and stretching movement of the finger by the wire spring member of the ring-type wearing tool and the annular elastomer member that connects the ring-type wearing tool and the back-type wearing tool. Therefore, not only can the muscle strength of the fingers be strengthened by the muscle resistance exercise, but also in the rehabilitation of a patient with spasticity, the fingers can be assisted while pulling the fingers in the extension direction and suppressing the muscle over-tension.
しかも、本発明では、ＩＰ関節の屈伸運動の負荷源として線バネ部材を使用し、またＭＰ関節の屈伸運動の負荷源として環状エラストマー部材を使用しているため、各関節の屈伸運動の負荷を個別に調整することができる。そのため、リハビリ患者の手指の状態に応じて、機能回復に適した細かい負荷調整を行うことが可能となる。 In addition, in the present invention, the wire spring member is used as a load source for the bending and stretching motions of the IP joint, and the annular elastomer member is used as the load source for the bending and stretching motions of the MP joint. Can be adjusted individually. Therefore, it becomes possible to perform fine load adjustment suitable for function recovery according to the state of fingers of the rehabilitation patient.
また本発明では、手指の両側に沿って線バネ部材を配置しているため、手指の関節に拘縮がある患者であっても、手指の屈曲状態に合わせて線バネ部材の形状を変更して負荷の方向や大きさを適宜調整できる。また本発明では、線バネ部材や環状エラストマー部材を手指の近くに配置しているため、負荷の方向を手指の屈伸方向に沿わせることができる。 In the present invention, since the wire spring members are arranged along both sides of the finger, the shape of the wire spring member is changed in accordance with the bending state of the finger even in a patient with a contracted finger joint. Thus, the direction and size of the load can be adjusted as appropriate. Moreover, in this invention, since the wire spring member and the cyclic | annular elastomer member are arrange | positioned near fingers, the direction of load can be made to follow the bending direction of fingers.
したがって、本発明では、使用者の手指の状態に合わせて細かく負荷調整を行うことができ、また手指の関節の拘縮にも対応できるリハビリ用途(特に痙縮のある患者に対するリハビリ)に適した手指訓練用器具を提供することができることから、本発明の実用的利用価値は非常に高い。 Therefore, according to the present invention, it is possible to finely adjust the load in accordance with the state of the user's finger, and the finger suitable for rehabilitation use (particularly rehabilitation for a patient with spasticity) capable of dealing with the joint contracture of the finger. Since a training instrument can be provided, the practical utility value of the present invention is very high.
『実施例１』
本発明の実施例１について、図１〜図６に基いて以下に説明する。なお同図において、符号１で指示するものは、手甲型装着具であり、符号２で指示するものは、指輪型装着具である。また符号３で指示するものは、環状エラストマー部材である。
“Example 1”
A first embodiment of the present invention will be described below with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a back-type wearing tool, and what is indicated by reference numeral 2 is a ring-type wearing tool. What is indicated by reference numeral 3 is an annular elastomer member.
「手指訓練用器具の構成、装着方法および使用方法」
[１]手指訓練用器具の基本構成について
まず手指訓練用器具の基本構成について説明する。本実施例では、図１に示すように、手の甲を被覆可能な本体部を備えた手甲型装着具１、及びリング部材21と線バネ部材22・22と指掛け部23とが一体となった指輪型装着具２・２…、及び伸縮性を有する環状エラストマー部材３・３…の３部品から手指訓練用器具を構成している。また手甲型装着具１の本体部、及び指輪型装着具２のリング部材21には、それぞれ対となるフック部Ｆ・Ｆ'を設けている。
"Structure, wearing method and usage of finger training equipment"
[1] Basic configuration of finger training instrument First, the basic configuration of the finger training instrument will be described. In this embodiment, as shown in FIG. 1, a hand-type wearing device 1 having a main body part capable of covering the back of the hand, and a ring in which a ring member 21, a wire spring member 22, 22 and a finger hook 23 are integrated. A finger training instrument is made up of three parts: a mold mounting tool 2... 2 and an annular elastomer member 3 3. In addition, the main body portion of the back-type wearing device 1 and the ring member 21 of the ring-type wearing device 2 are provided with hook portions F and F ′ as a pair.
[２]手指訓練用器具の装着方法について
次に上記手指訓練用器具の装着方法について説明する。図２及び図３に示すように、まず手甲型装着具１を手首に装着すると共に、指輪型装着具２・２…を、手指(人差し指、中指、薬指、小指)の付け根部分までリング部材21・21…を嵌め込んで装着する。この際、各指輪型装着具２・２…の線バネ部材22・22を、手指の両側に沿って配置し、更に指輪型装着具２・２…の指掛け部23を、ＤＩＰ関節付近の指腹に当接するように配置する。
[2] Method for Wearing Hand Training Equipment Next, a method for wearing the hand training equipment will be described. As shown in FIG. 2 and FIG. 3, first, the back-type mounting device 1 is mounted on the wrist, and the ring-type mounting devices 2, 2... Are attached to the base of the finger (index finger, middle finger, ring finger, little finger).・ Insert 21…. At this time, the wire spring members 22 and 22 of the ring-type wearing devices 2 and 2 are arranged along both sides of the fingers, and the finger-hanging portions 23 of the ring-type wearing devices 2 and 2 are arranged on the fingers near the DIP joint. Arrange it so that it touches the belly.
その後、図２に示すように、手甲型装着具１の本体部と指輪型装着具のリング部材21に設けられた対となるフック部Ｆ・Ｆ’に対し、環状エラストマー部材３・３…を引き伸ばした状態で引っ掛けて、手甲型装着具１と指輪型装着具２・２…とを連結する。これにより、手甲型装着具１と指輪型装着具２・２…は、環状エラストマー部材３・３…で引っ張られた状態で連結される。 Then, as shown in FIG. 2, the ring-shaped elastomer members 3, 3... Are attached to the hook portions F, F ′ provided on the ring member 21 of the ring-type wearing device 1 and the main body portion of the back wearing device 1. The hook-shaped wearing tool 1 and the ring-type wearing tools 2, 2. Thereby, the back-type wearing tool 1 and the ring-type wearing tools 2, 2... Are connected while being pulled by the annular elastomer members 3.
[３]手甲型装着具について
《本体部の材料》
次に上記手指訓練用器具の各部品について説明する。まず手甲型装着具１に関しては、手の甲部分を被覆可能な形状から成る本体部を硬質材料によって形成している。本実施例では、本体部に医療用の熱可塑性樹脂(ポリビニルアルコール)を使用して、本体部を手首および手の甲の形状に沿った湾曲形状に成形している。なお本体部の材料としては、硬質材料(環状エラストマー部材３を掛けたときの負荷で変形しない程度の剛性を有する材料)であれば、その他のプラスチック材料や金属材料、硬質ゴム等を使用することができる。
[3] About the back-type fittings << Material for the main body >>
Next, each part of the instrument for finger training will be described. First, with respect to the back-type wearing tool 1, a main body portion having a shape capable of covering the back of the hand is formed of a hard material. In this embodiment, a medical thermoplastic resin (polyvinyl alcohol) is used for the main body portion, and the main body portion is formed into a curved shape along the shape of the wrist and the back of the hand. As the material of the main body, other plastic materials, metal materials, hard rubber, etc. should be used as long as they are hard materials (materials that are rigid enough not to be deformed by the load when the annular elastomer member 3 is hung). Can do.
《装着部位の構造》
また上記手甲型装着具１の手首への装着部位11に関しては、本実施例では、図１〜図３に示すように本体部の一方の端部を手首を半分以上被覆できる断面円弧型に形成しており、この部位を弾性変形により拡開して手首を挿入することで、本体部を手首に固定できるようにしている。但し、この装着部位の構造については、本体部を手首に固定できれば他の構造を採用することもでき、例えば、手首に巻いて取り付けが可能なベルト部材を本体部に付設したり、前腕部に固定する部位を設けることもできる。
《Attached part structure》
As for the attachment part 11 to the wrist of the back-type wearing tool 1, in this embodiment, as shown in FIGS. 1 to 3, one end of the main body is formed in a circular arc shape that can cover the wrist more than half. The main body can be fixed to the wrist by expanding this portion by elastic deformation and inserting the wrist. However, as for the structure of this mounting part, other structures can be adopted as long as the main body can be fixed to the wrist.For example, a belt member that can be wound around the wrist and attached to the main body or attached to the forearm A site to be fixed can also be provided.
《フック部の配置》
また上記手甲型装着具１の本体部に設けられたフック部Ｆ・Ｆ…に関しては、本実施例では、手指のＭＰ関節(具体的には、装着時に対となるフック部Ｆ’を備えたリング部材21が装着された手指のＭＰ関節)またはその近傍を被覆する部位にそれぞれ配置している(理由については後述する)。また本実施例では、指輪型装着具２に対応させるために四つのフック部Ｆ・Ｆ…を本体部に設けている。
<Hook layout>
In addition, regarding the hook portions F, F,... Provided on the main body portion of the above-described hand-type mounting tool 1, in this embodiment, the finger MP joint (specifically, the hook portion F ′ that is paired when worn) is provided. (MP joint of the finger to which the ring member 21 is attached) or a portion covering the vicinity thereof (the reason will be described later). In this embodiment, four hook portions F, F,... Are provided in the main body portion so as to correspond to the ring-type wearing tool 2.
[４]指輪型装着具について
《指輪型装着具の全体構成》
次に上記指輪型装着具２に関しては、図４に示すように、手指の根元まで装着可能なリング部材21に対し、手指の両側に沿って並行に配置される一対の線バネ部材22・22の基端側をそれぞれ固定する一方、一対の線バネ部材22・22の先端側を指掛け部23を介してＵ型に連結し、更にリング部材21の所定位置にフック部Ｆ’を設けて全体を構成している。
[4] Ring-type wearing device << Overall configuration of ring-type wearing device >>
Next, with respect to the ring-type wearing tool 2, as shown in FIG. 4, a pair of wire spring members 22, 22 arranged in parallel along both sides of the finger with respect to the ring member 21 that can be worn to the base of the finger. The base end sides of the pair of wire spring members 22 and 22 are fixed to each other while the distal end sides of the pair of wire spring members 22 and 22 are connected to the U shape via the finger hook portions 23, and a hook portion F 'is provided at a predetermined position on the ring member 21 Is configured.
《リング部材の材料》
また上記リング部材21の材料に関しては、本実施例では、手甲型装着具１と同じ医療用の熱可塑性樹脂(ポリビニルアルコール)を使用しているが、硬質材料(環状エラストマー部材３を掛けたときの負荷で変形しない程度の剛性を有する材料)であれば、その他のプラスチック材料や金属材料、硬質ゴムなどを使用することができる。
<Ring material>
Further, regarding the material of the ring member 21, in this embodiment, the same medical thermoplastic resin (polyvinyl alcohol) as that of the back-mounted wearing device 1 is used, but when the hard material (the annular elastomer member 3 is hung) is used. Other plastic materials, metal materials, hard rubber, and the like can be used as long as they are materials that are rigid enough not to be deformed by the load.
《線バネ部材の材料・形状、弾性反発力の調整方法》
また上記線バネ部材22・22に関しては、本実施例では、形状記憶合金から成る非螺旋形の湾曲線材を使用している(理由は後述する)。但し、コイルバネやトーションバネ等の螺旋形の線材を使用することもできる。また線バネ部材22・22に、形状記憶合金から成る非螺旋形の湾曲線材を使用する場合には、弾性反発力を調整する方法として、全体の湾曲の大きさを変更したり、屈曲部を部分的に設けたり、また金属線材の材料や太さを変更したりする方法を採用できる。
《Material spring shape and shape adjustment method for elastic repulsion force》
As for the wire spring members 22 and 22, a non-helical curved wire made of a shape memory alloy is used in this embodiment (the reason will be described later). However, a helical wire such as a coil spring or a torsion spring can also be used. In addition, when using a non-helical curved wire made of a shape memory alloy for the wire spring members 22 and 22, as a method of adjusting the elastic repulsion force, the size of the entire curve can be changed, or the bent portion can be changed. It is possible to adopt a method of providing a part or changing the material and thickness of the metal wire.
また本実施例では、図４に示すように、一本の形状記憶合金から成る線材をＵ字型に屈曲させて、指の両側に配置される一対の線バネ部材22・22を構成すると共に、線バネ部材22・22として利用される線材の所定部位を上向きに湾曲させて適度な反発力が得られるようにしている。また本実施例では、線材のＵ字型に屈曲させた部分を、熱可塑性材料で被覆して指掛け部23を形成すると共に、Ｕ型の線材の両端を樹脂素材中に埋め込んでリング部材21に固定している。なおこの際、上向きに湾曲させた線バネ部材22・22の根元部分を、リング部材21に対して曲がり梁のように固定することで、直線梁のような固定形態よりも線バネ部材22・22をしなやかに変形させることができる。 In this embodiment, as shown in FIG. 4, a pair of wire spring members 22 and 22 arranged on both sides of the finger are formed by bending a wire made of a shape memory alloy into a U shape. A predetermined repulsive force is obtained by bending a predetermined portion of the wire used as the wire spring members 22 and 22 upward. In this embodiment, the U-shaped bent portion of the wire is covered with a thermoplastic material to form a finger hook portion 23, and both ends of the U-shaped wire are embedded in a resin material to form a ring member 21. It is fixed. At this time, by fixing the base portions of the wire spring members 22 and 22 bent upward to the ring member 21 like a curved beam, the wire spring members 22 and 22 22 can be flexibly deformed.
《装着対象となる手指》
また本実施例では、四本の手指の訓練を同時に行えるように、リング部材21の大きさや線バネ部材22の長さが異なる人差し指用、中指用、薬指用および小指用の４つの指輪型装着具２・２…を作製しているが、使用者の手指の状態や訓練方法に応じて指輪型装着具２の装着対象となる指を５本とすることも、また３本以下とすることもできる。
《Hands to be attached》
Further, in this embodiment, four ring-type attachments for the index finger, the middle finger, the ring finger, and the little finger with different sizes of the ring member 21 and the length of the wire spring member 22 so that four fingers can be trained simultaneously. We are making tools 2 ... 2 but the number of fingers to be attached to the ring-type wearing tool 2 may be 5 or less depending on the state of the user's fingers and the training method. You can also.
《指掛け部の形状・材料》
また上記指掛け部23の形状に関しては、本実施例では、図４に示すように、線バネ部材22・22よりも太く形成している(理由は後述する)。また本実施例では、指掛け部23を、指の腹に沿うように下側(線バネ部材22・22の長さ方向に対して垂直の向き)を向いた形状としている。また指掛け部23の材料としては、本実施例では、リング部材21と同様の熱可塑性樹脂を使用しているが、特に硬質材料に限定されず、柔軟なエラストマー材料を使用することもでき、また２種以上の材料(例えば、硬質な芯材の周囲を柔軟な材料で被覆したもの等)から形成することもできる。
《Finger part shape / materials》
Further, in the present embodiment, the shape of the finger hook portion 23 is formed to be thicker than the wire spring members 22 and 22 (the reason will be described later) as shown in FIG. Further, in this embodiment, the finger-hanging portion 23 has a shape facing the lower side (direction perpendicular to the length direction of the wire spring members 22 and 22) along the belly of the finger. Further, as the material of the finger hook portion 23, in the present embodiment, the same thermoplastic resin as that of the ring member 21 is used, but it is not particularly limited to a hard material, and a flexible elastomer material can also be used. It can also be formed from two or more types of materials (for example, a material in which the periphery of a hard core is covered with a flexible material).
[５]環状エラストマー部材について
《環状エラストマー部材の種類、張力の調整方法》
次に上記環状エラストマー部材３に関しては、本実施例では、ゴム紐をリング状に結んだものを使用しているが、エラストマー材料をリング状に成形したもの(結び目のないもの)を使用することもできる。また本実施例では、環状エラストマー部材３として全体がリング状になっているものを使用しているが、フック部Ｆ・Ｆ’に引っ掛けるためのリング部を両端に形成したものを使用することもできる。また環状エラストマー部材３の張力の調整方法に関しては、エラストマー材料の種類や太さやリングの大きさ、使用する本数によって調整することができる。
[5] Regarding the cyclic elastomer member << Type of cyclic elastomer member, tension adjusting method >>
Next, with respect to the annular elastomer member 3, in this embodiment, a rubber string tied in a ring shape is used, but an elastomer material molded in a ring shape (knotless one) should be used. You can also. In the present embodiment, the ring-shaped elastomer member 3 has a ring shape as a whole, but it is also possible to use a ring portion that is hooked to the hook portions F and F ′ at both ends. it can. Moreover, regarding the adjustment method of the tension | tensile_strength of the cyclic | annular elastomer member 3, it can adjust according to the kind and thickness of an elastomer material, the magnitude | size of a ring, and the number to be used.
[６]フック部の形状について
次に上記手甲型装着具１及び指輪型装着具２に設けられフック部Ｆ・Ｆ’の形状について補足説明する。本実施例では、対となるフック部Ｆ・Ｆ’を、互いが外側を向いた屈曲形状として、環状エラストマー部材３が簡単に外れないように、また装着が容易に行えるようにしているが、このフック部のＦ・Ｆ’の形状に関しては、環状エラストマー部材３が外れないように一方のフック部Ｆ・Ｆ’をリング型の形状とすることもできる(図示せず)。
[6] Shape of Hook Part Next, the shape of the hook parts F and F ′ provided in the back-type wearing tool 1 and the ring-type wearing tool 2 will be supplementarily described. In the present embodiment, the hook portions F and F ′ to be paired are bent to face each other so that the annular elastomer member 3 is not easily detached and can be easily mounted. Regarding the shape of the hook portion F · F ′, one of the hook portions F · F ′ can be formed in a ring shape so that the annular elastomer member 3 is not detached (not shown).
[７]手指訓練用器具の使用方法について
《基本的な使用方法》
次に上記手指訓練用器具の装着後の使用方法について説明する。まず基本的な使用方法としては、図５に示すように、手指訓練用器具を手に装着した状態で、手指を屈伸させる動作(例えば、物を掴む動作や摘まむ動作、手を握る動作)を行うことで、手指に対し屈曲させた線バネ部材22・22の弾性反発力による負荷と、引き伸ばした環状エラストマー部材３の張力による負荷を与えることができる。
[7] How to use hand training equipment 《Basic usage》
Next, the usage method after mounting | wearing the said instrument for finger training is demonstrated. First, as a basic usage method, as shown in FIG. 5, an operation for bending and stretching a finger (for example, an operation for grasping an object, an operation for grasping an object, or an operation for grasping a hand) with a finger training instrument attached to the hand. Thus, it is possible to apply a load due to the elastic repulsion force of the wire spring members 22 and 22 bent with respect to the finger and a load due to the tension of the expanded annular elastomer member 3.
これにより、手指の筋力を鍛えることができるだけでなく、痙縮のある使用者が手指の屈伸運動する際、手指の伸展方向に負荷(牽引力)を働かせることができるため、屈曲させた手指をそのままこわばらせることなく元の伸展状態に自力で戻せるように補助することができる(手指訓練用器具によって筋肉の過緊張を抑制することができる)。 As a result, not only can the muscle strength of the fingers be trained, but a user with spasticity can exert a load (traction force) in the direction of finger extension when the user flexes and extends the finger, so the bent finger is still stiff. It is possible to assist in returning to the original stretched state without any action (muscle over-tension can be suppressed by a hand training device).
《各関節に対する負荷の個別調整》
また上記手指訓練用器具の使用時には、線バネ部材22・22の形状等を変更することで、ＩＰ関節を屈曲させる屈伸運動の負荷を調整することができ、また環状エラストマー部材３の長さや数等を変更することで、ＭＰ関節を屈曲させる屈伸運動の負荷を調整することができるため、ＩＰ関節とＭＰ関節に対する運動の負荷を個別に調整できる。
<< Individual adjustment of load for each joint >>
In addition, when using the above-described finger training device, the load of bending and stretching motions that bend the IP joint can be adjusted by changing the shape of the wire spring members 22 and 22, and the length and number of the annular elastomer member 3 can be adjusted. By changing the above, it is possible to adjust the load of flexion / extension motion that bends the MP joint. Therefore, the motion load on the IP joint and the MP joint can be individually adjusted.
しかも、本実施例では、線バネ部材22・22として非螺旋形の金属線材を使用しているため、屈曲部を部分的に設ける等の形状の工夫によりコイルバネやトーションバネよりも負荷の方向や大きさを細かく調整できる。また線バネ部材22・22を手指間の狭いスペースに無理なく配置できるため、手指の屈伸運動をスムーズに行うことができる。 In addition, in this embodiment, since the non-spiral metal wire is used as the wire spring members 22 and 22, the direction of the load than the coil spring or the torsion spring can be improved by contriving the shape such as partially providing a bent portion. The size can be finely adjusted. Further, since the wire spring members 22 and 22 can be arranged without difficulty in a narrow space between fingers, the fingers can bend and stretch smoothly.
加えて、本実施例では、手甲型装着具１の本体部に設けられた四つのフック部Ｆ・Ｆ…を、手指のＭＰ関節またはその近傍を被覆する部位にそれぞれ配置しているため、一対のフック部Ｆ・Ｆ’を手指の骨に沿って配置することができ、これにより環状エラストマー部材３の張力による負荷をＭＰ関節の屈伸方向に沿って適切に働かせることができる。 In addition, in this embodiment, the four hook portions F, F,... Provided on the main body portion of the hand-mounted wearing device 1 are respectively arranged at the portions covering the MP joints of the fingers or the vicinity thereof. The hook portions F and F ′ can be arranged along the bones of the fingers, whereby the load due to the tension of the annular elastomer member 3 can be appropriately applied along the bending and stretching direction of the MP joint.
《指掛け部の食い込み・拘束防止》
また本実施例では、指掛け部23を手指との接触面積を大きくなるように線バネ部材22・22よりも太く形成しているため、指掛け部23から手指の腹にかかる圧力を分散させて指掛け部23の手指への食い込みを防止できる。そのため、長時間繰り返し運動を行っても手指が痛くなり難い。また本実施例では、指掛け部23が非リング型の形状となっているため、線バネ部材22・22を変形させる前の初期状態において手指の指先側が無闇に拘束されることもなく血がたまる心配もない。
<Preventing biting and restraining of finger rests>
Further, in this embodiment, since the finger hanging portion 23 is formed thicker than the wire spring members 22 and 22 so as to increase the contact area with the finger, the finger hanging portion 23 is dispersed with the pressure applied to the belly of the finger. It is possible to prevent the part 23 from biting into the fingers. Therefore, even if exercise is repeated for a long time, it is difficult for the fingers to hurt. In the present embodiment, since the finger-hanging portion 23 has a non-ring shape, blood accumulates in the initial state before the wire spring members 22 and 22 are deformed without being restrained in the dark. No worries.
《指輪型装着具のみの使用》
一方、上記手指訓練用器具の使用方法としては、図６に示すように、手甲型装着具１及び環状エラストマー部材３・３…を外した状態で指輪型装着具２・２…のみを装着して使用することもできる。特に手指の独立運動(手指を個別に動かす運動)や対立動作(つまみ動作)を訓練したい場合等に、このような使用方法を選択できる。
《Use only ring-type wearing device》
On the other hand, as shown in FIG. 6, the finger training device is used by attaching only the ring-type wearing devices 2, 2... With the hand-back wearing device 1 and the annular elastomer members 3. Can also be used. This method of use can be selected particularly when it is desired to train independent finger movements (movements that move fingers individually) or confrontation movements (knob movements).
１ 手甲型装着具
11 装着部位
２ 指輪型装着具
21 リング部材
22 線バネ部材
23 指掛け部
３ 環状エラストマー部材
Ｆ フック部
1 Back-type wearing equipment
11 Wearing part 2 Ring-type wearing device
21 Ring member
22 Wire spring member
23 Finger hook part 3 Annular elastomer member F Hook part
Claims (6)
手首部分に装着可能な硬質材料から成る本体部を備え、かつ、この本体部が手の甲部分を被覆可能な形状を成す手甲型装着具(１)と；
手指の付け根部分に装着可能な硬質材料から成るリング部材(21)、及び手指の両側に沿って並行に配置される一対の線バネ部材(22)(22)を備え、かつ、前記一対の線バネ部材(22)(22)の基端側がリング部材(21)に固定されると共に、先端側が指掛け部(23)を介してＵ型に連結された指輪型装着具(２)(２)…と；
伸縮性を有する環状エラストマー部材(３)(３)…とを含んで構成される一方、
前記手甲型装着具(１)の本体部、及び前記指輪型装着具(２)のリング部材(21)に、それぞれ対となるフック部(Ｆ)(Ｆ’)が設けられて、これらのフック部(Ｆ)(Ｆ’)に、前記環状エラストマー部材(３)を掛けることにより装着状態の手甲型装着具(１)と指輪型装着具(２)とが連結可能となっていることを特徴とする手指訓練用器具。 A hand training device used by attaching to a hand to assist bending and stretching movements of a finger,
A hand-type mounting device (1) having a main body portion made of a hard material that can be attached to the wrist portion, and the main body portion having a shape capable of covering the back portion of the hand;
A ring member (21) made of a hard material that can be attached to the base portion of the finger, and a pair of wire spring members (22) (22) arranged in parallel along both sides of the finger, and the pair of wires A ring-type mounting device (2), (2), etc. in which the proximal end side of the spring members (22), (22) is fixed to the ring member (21) and the distal end side is connected to the U-shape via the finger hooking portion (23). When;
While comprising a ring-shaped elastomer member having elasticity (3), (3),
A hook portion (F) (F ′) is provided on the main body portion of the back-type wearing device (1) and the ring member (21) of the ring-type wearing device (2). By attaching the annular elastomer member (3) to the parts (F) and (F '), the mounted back-type wearing device (1) and the ring-type wearing device (2) can be connected. An instrument for hand training.
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| CN113304451A (en) * | 2021-06-30 | 2021-08-27 | 上海交通大学医学院附属第九人民医院 | 3D prints finger muscle power initiative trainer |
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| KR102034937B1 (en) * | 2017-12-29 | 2019-11-08 | 한국과학기술원 | Finger motion assist apparatus |
| KR102071682B1 (en) * | 2018-07-02 | 2020-01-30 | 한국과학기술원 | Finger motion assist apparatus |
| JP2020162897A (en) * | 2019-03-29 | 2020-10-08 | 株式会社松風 | Orbicularis oris muscle exercising apparatus |
| KR102127271B1 (en) * | 2019-03-29 | 2020-06-29 | 춘해보건대학교 산학협력단 | Apparatus of hands rehabilitation |
| US11865017B2 (en) | 2020-12-18 | 2024-01-09 | Korea Advanced Institute Of Science And Technology | Finger motion assist apparatus |
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| JPS5627263A (en) * | 1979-08-13 | 1981-03-17 | Kazuyoshi Motohashi | Exercising instrument for wrist finger joint |
| JPS6171162U (en) * | 1984-10-16 | 1986-05-15 | ||
| JPS63186429U (en) * | 1987-05-26 | 1988-11-30 | ||
| JP2014124191A (en) * | 2012-12-25 | 2014-07-07 | Tetsuji Yanagawa | Rehabilitation device used in radial nerve palsy |
| JP3184390U (en) * | 2013-03-15 | 2013-06-27 | 浩文 田邉 | Finger training brace |
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| CN109223431A (en) * | 2018-07-20 | 2019-01-18 | 濮阳市油田总医院 | A kind of medical nerve internal medicine device for healing and training |
| JP6991579B2 (en) | 2018-10-22 | 2022-01-12 | 和秀 上森 | Hand equipment with bellows |
| CN113304451A (en) * | 2021-06-30 | 2021-08-27 | 上海交通大学医学院附属第九人民医院 | 3D prints finger muscle power initiative trainer |
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