JP4237848B2

JP4237848B2 - Tow bed with side arm

Info

Publication number: JP4237848B2
Application number: JP23355898A
Authority: JP
Inventors: 成雄安斎; 和男宗友; 毅大橋
Original assignee: オージー技研株式会社
Priority date: 1998-08-04
Filing date: 1998-08-04
Publication date: 2009-03-11
Anticipated expiration: 2018-08-04
Also published as: JP2000051256A

Description

【０００１】
【産業上の利用分野】
本発明は、腰椎症の牽引治療や訓練に用いる牽引用ベッドの改良に関する。
【０００２】
【従来の技術】
従来技術として特開平３−１６５６３号公報に開示される技術がある。この技術における牽引治療用ベッドは、ベッドフレームと、脇用ア−ムとからなり、該脇用ア−ムは、ベッドフレームに設けた左右の二つの第１の軸（＝縦軸）と、第１の軸に取付けた横旋回する長軸の第１ア−ムと、第１ア−ムの長軸（＝横軸）に縦回転可能に取付けた第２ア−ムと、第２ア−ムの先端の脇当とから構成される。
【０００３】
更に、二つの第１の軸の間隔がベッドに仰臥した被牽引治療者（以下患者という）の両脇間隔よりも狭いことを特徴としたものであり、特に、第１の軸（＝縦軸）をベッド面より低く設けることを適切とするものである。
【０００４】
【発明が解決しようとする課題】
前記従来装置に係る脇当８は、患者に付与される牽引力で締め付けるものであるが、この脇当を支持する脇用ア−ムの構成が複雑で邪魔であり、又、脇当側方からの締付けが、長軸の第１ア−ムから第２のア−ムを経由して作動する為左右のズレやガタなどが出易く動きにも斑のあるものである。
又、第２ア−ムが縦回転する軸心の横軸Ｑは横旋回する長軸に設けられている為、患者や治療位置によって旋回角度や軸心Ｑが変わり、脇ア−ムの作動状況が変わり、上半身へのフィッティングが変わるという問題があった。
【０００５】
又、一方第１ア−ムの軸心位置は固定であり横幅の作動しかできない為、患者の体格や脇部の形態特徴等の個人差に合わせた治療が出来ず脇締力が強くなり過ぎ、脇部が痛くなり患者脇部へのフィッティングが悪くなるといった不都合があった。
【０００６】
本発明は上記問題点を解決したもので、脇アームの構成が適切で、脇当のフィッティングの自由度が高く、脇締力を調節可能で、脇痛が少ない脇アーム付牽引用ベッドを提供することを目的としている。
【０００７】
【課題を解決するための手段】
即ち本発明は、ベッド（１）の表側又は裏側に左右一対の脇アーム（６）が設けられるものであって、軸受連結体（１８）を縦方向に旋回可能に支持する横軸着部（１２）をベッド（１）のフレーム（２）に設け、該横軸着部（１２）に、縦方向に旋回する軸受連結体（１８）の基端を連結し、軸受連結体（１８）の他端に縦軸着部（１５）を設け、該縦軸着部（１５）に脇アーム（６）を横方向に旋回可能に支持し、脇アーム（６）は、アーム（７）、及び、脇当（８）を有し、アーム（７）が脇当（８）を回動可能に支持することを特徴とする脇アーム付牽引用ベッドである。
【０００８】
ベッド（１）表側又は裏側に左右一対の脇アーム（６）が設けられるものであって、軸受連結体（１８）を縦方向に旋回可能に支持する横軸着部（１２）をベッド（１）のフレーム（２）に設け、該横軸着部（１２）に、縦方向に旋回する軸受連結体（１８）の基端を連結し、軸受連結体（１８）の他端に縦軸着部（１５）を設け、該縦軸着部（１５）に脇アーム（６）を横方向に旋回可能に支持し、該縦軸着部（１５）の左右軸心間の間隔を調節する間隔調節機構（２１）を設けている。
【００１１】
牽引治療中、脇当（８）を患者の脇部に当てがい上半身を保持する脇アーム（６）付の牽引用ベッドであって、前記脇アーム（６）は、牽引作用によって脇当（８）に患者の両脇部を外側及び／又は上側から締付ける脇締力を発生させ、上半身保持を補助するものであり、間隔調節機構（２１）で、前記脇アーム（６）のベッド（１）への取着位置関係を変更調節して脇締力を調節可能としている。
【００１２】
【作用】
本発明は、牽引用のベッド１のフレーム２に脇ア−ム６を設けたものであって、腰椎牽引治療に供する。
【００１３】
即ち、ベッド１の一端に牽引機（図示省略）を設置し、患者をベッド１に仰臥させ、該患者の両脇に、脇ア−ム６の脇当８を動かして当てがう。
患者の腰部に腰装具２５を装着し、前記牽引機でワイヤー（図示省略）を介して前記腰装具２５を牽引し、患者の腰椎部に適宜な牽引力を付与する。
【００１４】
脇ア−ム６に患者足方向に前述の牽引力が掛ると、脇ア−ム６が、牽引用のベッド１のフレーム２に設けられた縦軸着部１５を中心に適宜横回動し、更に、縦軸着部１５を支持する軸受連結体１８は横軸着部１２に支持されており、横軸着部１２に繋がる脇ア−ム６を末端とし適宜縦回動可能である。
【００１５】
前記脇当８を患者に装着した治療形態において、脇ア−ム６は縦軸着部１５を中心に患者両脇部で横方向に自在に回動し、脇ア−ム６付の軸受連結体１８部は縦方向に自在に可動し、脇当８を患者脇部に着脱可能である。
【００１６】
脇ア−ム６は、患者脇部に当接し、牽引治療中、患者脇部を締め付けつつ、患者の足方向の移動を阻止する。ア−ム７の先端に装着された脇当８は、患者脇部に当接する。
【００１７】
ベッド１表に脇ア−ム６を取着しており、牽引治療時には、該脇ア−ム６を下方向へ動かし、脇当８を患者脇部へ当てる。又は、ベッド１裏に脇ア−ム６を取着しており、牽引治療時には、該脇ア−ム６を上方向へ動かし、脇当８を貫通スペ−ス２６に通過させベッド１上面に突出させて患者脇部へ当てる。
【００１８】
横軸着部１２は、軸受連結体１８及びそれに接続されている縦軸着部１５と脇ア−ム６を縦振り旋回可能に支持する。左・右横軸着部１２ａ・１２ｂの各旋回に係る中心は好ましくはほぼ同一軸心である。従って、脇ア−ム６を作動させる装置はコンパクトな構造で簡単な作動となり、一体化も出来左右のバランスもとれて、縦軸着部１５の軸間隔の調整も容易となる。
【００２０】
ア−ム７先の芯２７と脇当８の間に設けられる可動調整構造４５は、ア−ム７が脇当８を回動可能に保持する。
人体の脇下部にあって、ア−ム７先の芯２７に回動可能に取着される脇当８は、患者の脇下への牽引力の作用点で所定角度だけ回動可能であり、牽引治療中、脇当８が負荷方向へ自動調整して回動し患者の脇に脇当圧力のバランスの良い状態にフィッティングする。
【００２１】
間隔調節機構２１で、患者の固体差や治療条件に合わせて、脇アーム６のベッド１への取着位置関係を変更調節して、牽引力の作用によって生ずる脇締力の程度等調整してフィッティング性を向上させ快適な治療を可能にする。
【００２２】
【実施例】
図１に示す本発明の第１実施例に係る、仰臥した患者を載せるベッド１は、通常、矩形枠体等でなるフレーム２と、フレーム２を支持する脚３と、フレーム２にスライド可能に載設される上半身載台５及び下半身載台４と、フレーム２の被着部２ａに取着される脇ア−ム装着部１０と、脇ア−ム装着部１０に基端が止着される脇ア−ム６とからなる。
【００２３】
前記ベッド１の上半身載台５における上方部には、通常患者の頭部を乗せる枕部９が形成される。
【００２４】
前記脇ア−ム６は、牽引治療中に、患者の両脇部に挾んで患者上半身が足側方向へ移動することを阻止して上半身を把持するものである。
脇ア−ム６は、その基部が脇ア−ム装着部１０に取着され、関節様の動きが可能なものである。
【００２５】
脇ア−ム６は、脇ア−ム装着部１０の縦軸着部１５を基端にして脇ア−ム装着部１０の位置からベッド１の患者足方向に向かって、ベッド１裏面下方をベッド１に添って延設される。
【００２６】
脇ア−ム６は、先部をベッド１面上方向へ屈曲してなるア−ム７と、該ア−ム７の先部を芯２７としこれに適宜な緩衝材２８を装着して略円柱形状等に形成される脇当８とから構成される。前記ア−ム７は縦軸着部１５により適宜な角度で横振り旋回可能に取着される。
【００２７】
脇当８は通常ア−ム７の芯２７材の周囲にスポンジ等緩衝材２８を配し、更に、ソフトな表皮材等で被覆したものが用いられる。
【００２８】
脇当８は、脇下部へのフィッティング性を良くし、上半身の把持性を良くする為、好ましくは芯２７の延長方向に湾曲形状に形成され、牽引治療中に、脇当８の湾曲形状における凹曲面部側が患者の脇下部に当接するものである。
【００２９】
図示を省略するが、脇当８の他の形状は、脇当８の延長方向に向かって漸増径形状（＝ラッパ形状又は鼓形状等）に形成され、牽引治療中に、脇当８の凹曲面曲面側部が患者脇部に当接するものである。
【００３０】
漸増径形状部分の凹曲面部が、牽引治療中患者脇部をベッド１面に適度に抑える作用と脇下への滑らかなフィッティング性向上の作用とを有することにより、人体脇部に掛かる牽引力が分散し痛みを改善すると同時に、外れにくく作用する。
【００３１】
脇ア−ム装着部１０は、脇ア−ム６を、縦・横方向へ旋回可能で、脇ア−ム６を患者の治療位置にセットし、牽引治療中には脇当８を患者の適切な位置に保持するものである。
【００３２】
前記脇アーム装着部１０は、被着部２ａに取着される軸支持部１１とそれに支持され固定的軸心となる横向軸１３及び横向軸受１４とからなる横軸着部１２と、該横軸着部１２に取着される軸受連結体１８と、軸受連結体１８の他端に設けられる縦軸着部１５とからなる。更に、軸受連結体１８の縦軸着部１５の左右軸心間の間隔を調整する間隔調節機構２１を付随するものである。尚、横軸着部１２の軸心が固定的である点は先に挙げた従来技術と大きく異なっている。
【００３３】
前記ア−ム７は、横軸着部１２により横振り旋回可能に取着・延設され、脇ア−ム６の患者装着と牽引作用による締付力付加の為の横振り旋回ができる。
前記縦軸着部１５は、軸受連結体１８を介して固定的軸心である横軸着部１２に延設されており確実な縦振り旋回も可能に取着される。
【００３４】
従って、ア−ム７は、脇ア−ム装着部１０で、フレ−ム２に取り付けられた縦振り部材に横振り可能に装着されている。
【００３５】
横軸着部１２を構成する横向軸受１４は左右脇ア−ム６に対応して左・右横向軸受１４ａ・１４ｂを有し、更に、縦向軸受１７は左・右縦向軸受１７ａ・１７ｂを有する。
縦軸着部１５を構成する縦向軸１６は左右脇ア−ム６に対応して左・右縦向軸１６ａ・１６ｂを有する。従って、脇ア−ム６は左右各々別個に横振り旋回自在、及び、縦振り旋回自在である。
【００３６】
左・右横軸着部１２ａ・１２ｂに設けられる装着機構部１９は、詳細機構を省略するが、脇当８をベッド１上面より下の非突出の待機位置と、脇当８を上方へ動かして、ベッド１の貫通スペ−ス２６を貫通し、ベッド１面より上方に突出した牽引治療中の使用位置とに、適宜移動させ、及び、移動させた位置に停止させるものであり、具体例では、装着取手２０を操作することによって着脱できるものである。
【００３７】
装着取手２０を延出方向を軸心にして正・反回動させれば、装着取手２０は進退する。即ち、装着取手２０を退入させておいて装着取手２０を正回動させた後、装着取手２０を進出させれば左・右横向軸受１４ａ・１４ｂを横向軸１３に掛止することができる。
【００３８】
待機位置又は使用位置に移動し停止させられた脇当８は、ベッド１面又は横軸着部１２の中心からの立位角度を所定の位置にセットされ保持される。通常好ましい脇当８のベッド１面との立位角度θは６０度乃至９５度であり、更に、好適には７０乃至９０度である（図５参照）。図５中、Ｌは牽引力負荷位置である。又、脇当８の横軸着部１２の軸心とのなす旋回立位角度αは好ましくは８５度乃至１３０度であり、更に、好適には９０度乃至１２０度である。
【００３９】
ベッド１面との立位角度θが６０乃至９５度である脇当８が、牽引治療中に、患者と共に牽引方向に引かれると、脇当８のクッションと摩擦効果も加わり患者の脇部をベッド１面へ保持する作用が発生し脇ア−ム６による上半身保持性が良く、身体へのフィット性も向上するように作用し、更に、牽引力作用により脇ア−ム６は自動的に左・右脇当８ａ・８ｂが縦軸着部１５の軸心からの横振り旋回作用で患者脇部に好適に添う様に、且つ、脇を締めるように動き患者上半身を保持する。
【００４０】
即ち、脇当８のベッド１面立位角度θが９５度を超えると牽引作用で患者脇部に持ち上げる力が増大し不安定となり、又、６０度以下では脇当８が患者の脇部前面のみに当たり脇痛が大きくなり、又、脇ア−ム６を押し上げることになるので、脇当８が脇下部からズレ易く外れ、具合が悪い。そして、より好適なベッド１面立位角度θは、７０乃至９０度である。
【００４１】
次に、脇当８の立位向きが横軸着部１２の軸心となす旋回立位角度αは、ア−ム機能上重要な要因で、好ましくは８５度乃至１３０度である。
【００４２】
即ち、旋回立位角度αが８５度未満では牽引力による患者脇部の作用で脇当８に上方への力が発生し脇ア−ム６を上方に浮き上がらせることになり脇当８が患者脇部から外れズレてしまう為、具合が悪い。又、１３０度を超えると、脇当８を下方に押し、脇部が浮き脇アーム６を下方旋回させる力が過大になり、脇ア−ム６をベッド１上面に配置する場合等ベッド１面と脇当８のコスレ等不具合が発生し、又構造上横軸着部１２がベッド１下面の奥に来る為、ア−ム構造も複雑になり具合悪い。
そして、更に、より好適な旋回立位角度αは９０度乃至１２０度である。
【００４３】
脇当８は、ベッド１の治療位置高さの近辺で、脇ア−ム６等の位置がセットされるセッティング機構（図示省略）が付随している。
セッティング機構は、牽引治療中に脇当８が脱落せず余分な外力を付加しないよう、脇ア−ム６に均衡するものである。
【００４４】
前記軸受連結体１８の相互間隔は、間隔調節機構２１により変更調節が可能である。
間隔調節機構２１は、左・右軸受連結体１８ａ・１８ｂから突出される左・右間隔ガイダ−２３と、該間隔ガイダ−２３のそれぞれに貫通しねじ方向を変えたねじ軸２２と、ねじ軸２２を回動させる調整ハンドル２４とからなる。
【００４５】
調整ハンドル２４を回動させると左・右軸受連結体１８ａ・１８ｂの相互間隔が変わり、脇ア−ム６の横振り旋回の中心である縦軸着部１５の位置を調整できる。
【００４６】
即ち、脇ア−ム６を取り付ける縦軸着部１５の取り付け位置及び間隔は変更調節可能で、牽引力等の治療条件や患者の体格等の差異に対応して患者脇部の痛みの少ない適切なフィッティングが可能である。
【００４７】
左・右縦軸着部１５ａ・１５ｂの両者間の間隔（＝幅）は好ましくは患者の両脇の幅より狭い位置であり、治療位置での脇当８の中心位置と縦軸着部１５の軸心のなす開き角度（＝左右の脇ア−ム６のハの字の拡がり角度）が、通常２０度乃至６０度が好適であり、より好適には、患者の身体的状況や治療条件に合わせてフィット性の良い痛みの少ない開き角度に調節することである。上述の好ましい態様ならば脇当８の身体への把持性がよく、好適な治療が可能である。
【００４８】
左・右縦軸着部１５ａ・１５ｂの軸心間の間隔が狭すぎる（＝脇ア−ム６の作用角度が大きくなりすぎる）場合、牽引力が大きくなると脇締力が過大となり脇が痛くなる。脇痛は牽引力や体格等個人差について適正条件が変わる。それ故に、前述の中心のなす角度は、調節が出来ることが好ましいのである。
又、脇ア−ム６は縦軸着部１５の軸心にア−ム７が直結している構造の為、脇締作用が的確に働きガタつきもなく好適に作動できる。
【００４９】
牽引治療中に、脇当８が牽引方向に引かれると、左・右脇当８ａ・８ｂはその両部材間の幅が狭くなる方向に力が作用し移動する。
【００５０】
尚、図１中、３は脚、４は下半身載台、２５は腰装具である。
【００５１】
牽引治療に際し、患者に腰装具２５を装着し、脇ア−ム６及び脇当８を下げておく。
次に、ベッド１に患者を仰臥させ、しかる後に前記装着取手２０を掴んで脇当８を上方へ回動させるよう操作する。
【００５２】
脇ア−ム６は、装着機構部１９の作用により脇ア−ム７６が不要な位置まで動かず、脇ア−ム６を必要作動範囲で動かすことができる。
【００５３】
脇当８を仰臥患者の両脇部に当てがい、患者脇部を把持する。
第１実施例は、脇ア−ム６を上方向へ動かし、脇当８を、貫通スペ−ス２６を貫通させて患者脇部へ当てるものであるから、脇ア−ム６が患者の上方に存在せず、ベッド１下に存在するので、患者が脇ア−ム６へぶつかることがなく安全であり、脇ア−ム６がベッド１上に空間を占有せず邪魔にならず外観的、デザイン的にもスッキリしている。
【００５４】
次に、牽引機（図示省略）でワイヤー等（図示省略）を介して腰装具２５を引っ張り、患者の腰部をその足方向へ引っ張る。
牽引機に引っ張られて患者は自身の足方向へ徐々に移動するがその際、患者の両脇下に脇当８が当たる。
【００５５】
脇当８に、患者を介して患者足方向の牽引力が掛かる。脇当８にこの牽引力が掛ると、脇当８を擁する脇ア−ム６も患者足方向に引っ張られる。
脇ア−ム６は患者の脇部の作用力によって回動モ−メントが発生し、縦軸着部１５を中心軸にして作動し、左・右脇当８ａ・８ｂが患者を締めるようトルクが発生する。
【００５６】
縦軸着部１５と脇当８との間のア−ム７は、軸受連結体１８に直結して固定された縦向軸受１７を中心に旋回作動するシンプルな形状であり、邪魔にならず左右のズレやガタも生じず、バランス良く好適に作動する。
【００５７】
即ち、脇ア−ム装着部１０特に軸受連結体１８が、フレ−ム２の被着部２ａに固定された軸支持部１１と横軸着部１２に確実に設けられているので、前記牽引機の張力によりア−ム７及び脇当８はベッド１の短手方向中央へ向かって左右バランス良くスム−ズに回動し、左右の脇当８の相互間隔は適切に自動調整される。
【００５８】
脇ア−ム６の調整は、患者や治療条件に合わせて変更調節出来るので、脇当８は患者脇部に痛みが少なく、把持性の良い適正状態にフィットし、快適な治療が可能となる。
【００５９】
左・右脇当８ａ・８ｂは、治療中、患者の両脇部を痛くないように確実に把持し、患者の疲れも少ない。
上述のようにして牽引治療中に脇当８は、治療に掛る牽引力や体格等に併せて患者の両脇部を適度な力で押圧することが出来るので、脇部の痛みもなく脇当８が患者から外れず、把持性がよい。
【００６０】
間隔調節機構２１で、左・右横軸着部１２ａ・１２ｂの位置及び間隔を変更調節し、患者の体格の差異や治療条件に対応して脇当８を好適にフィッティングさせる。
【００６１】
更に、患者の両脇部の締め付け力を好適に調節し、牽引治療中、脇当８が患者の両脇部に、牽引力に対応した好適な圧力をもって当たる様にする。
脇当８は、湾曲や鼓形の凹曲面で、患者の脇下に当たるので脇部への添いも良く自動バランス作用により確実に把持される為、脇部の痛みも少なくリラックス出来るので治療の上でも効果的である。
【００６２】
従って、どの患者にも対応した治療態が可能となり、従来のような、脇を過剰に締めるといった装着はしなくてよくなる。
【００６３】
図２に示す第１参考例は、脇アーム６の延設側は第１実施例とは異なりベッド１の表側に取着したものである。機構的には第1実施例と同様で、横軸着部１２は、軸支持部１１により、フレーム２に固定されるが、固定した軸心の向きをベッド１方向に対し若干八の字形状に軸方向を変えたものである点、横軸着部１２を同一軸心とした第１実施例とは異なる。横軸着部１２には、第１実施例と同様、先方に向かって軸受連結体１８が接続され先端には縦軸着部１５が構成され、脇アーム６に直結する構造である。
【００６４】
脇ア−ム６はア−ム７とア−ム７先に形成される脇当８とからなり、脇当８の先部には、ベッド１と接触時の摩擦を軽減する脇当ガイド３９が取着され、該ガイド３９は、脇当８がベッド１面を摩擦する時、脇当８とベッド１の摩擦抵抗を軽減する。
【００６５】
使用の際は、先ず、脇ア−ム６を上げ、脇ア−ム６は横軸着部１２の方向にならって、若干外方に開き気味に上方に旋回開放される。脇ア−ム６が外方に旋回するので邪魔にならず好都合である。
【００６６】
次に、患者をベッド１に仰臥させる。次に、脇ア−ム６を下げ、脇当８を、患者脇部へ当て上半身載台５に載せる。
縦軸着部１５の軸心間隔は通常狭くする為ア−ム７が接近するので大きく外回りに湾曲させなくても邪魔にならず好都合である。
【００６７】
脇当８はベッド１面より若干浮かし気味にセットされ、治療牽引力が付加されると、機構的には第１実施例と同様であり、脇当８のベッド１面立位角度θは６０乃至９５度が好ましく、脇当８の横軸着部１２の軸心となす立位角度αは８５乃至１３０度が好ましい。又牽引作動中、下部に設けられたローラーでなる脇当ガイド３９が上半身載台５の上面に当接する機能も付加している。
【００６８】
脇当ガイド３９により脇当８と上半身載台５とのスベリをよくし、スム−ズな牽引の繰り返しを可能にし、微妙なコスレや軋みを無くし、ベッド１が脇当８に対して摺動しても牽引作動中のひっかりやベッド１の表面の損傷が頗る軽減でき、スム−ズな治療が可能となり、ベッド１や脇当８の損傷も解決できる。
【００６９】
患者を介して脇当８に牽引力が働くと、左・右脇当８ａ・８ｂはその間隔が狭まる方向に動き、脇部で牽引力を負担しつつ患者の両脇を締め上半身を保持する。
【００７０】
ア−ム７と脇当８の接合部即ち牽引力が作用する中心には枢着軸受２９が設けられており、脇当８は枢着着軸受２９で所定の微小角度（＝一例では立位方向ではベッド左右に±１０度）の回動が可能である。脇当８は、ア−ム７端に適当な隙間又は軟質材芯で構成し微小角度回動可能としており、脇当８に掛かる力の方向に自動調整し、この回動が脇当８の脇部へのフィット性を向上させている。脇部の痛み問題解消やフィット性が改良される。
図２中、４０は自動調整スペ−スである。
【００７１】
図３に示す第２実施例は、第１参考例における横軸着部１２を左右同一軸心の構成とし、左・右縦軸着部１５ａ・１５ｂを接近させて（左右軸支持部１１の間に挟み込んで収納的に）コンパクトに設けたものであり、機構的には第１参考例と同様である。第２実施例は、実質的に、脇アーム６の支持部より左右各１本のアームで脇当８の自在回動が可能となる為、アーム７の撓みやガタつきが無く、左右の動作斑も無い為、極めて動きがスムーズである。更に、脇当８には、脇部へのフィッティング性を改良する偏心３１を内蔵し首振り構造３2である偏心脇当３０が設けられている。
【００７２】
偏心脇当３０は、硬性な偏心３１を偏心状に屈曲させて緩衝材２８で包んで円柱形状に形成される。
【００７３】
ア−ム７は、偏心脇当３０の基端面（図３では上端面）において一方側へ偏心した位置に首振り構造３２を介して回動可能に取着される。前記偏心３１は脇当８の若干偏心した位置に設けられる。
【００７４】
牽引治療中、患者を介して偏心脇当３０に牽引力が働くと、脇ア−ム６は狭くなるように横から挟み込む力が働くが、左右の偏心脇当３０はその間隔が狭まる方向と下方に引く牽引力とのバランスする方向に自動的に偏心して動き、患者の両脇を牽引力にバランスして締める効果が得られ良いフィッティング効果が得られる。
【００７５】
即ち、患者の脇幅が大きく、牽引時の脇ア−ム６の左右への開き角度が大きくなり脇締力が過大となると、偏心脇当３０は偏心構造により自動調心して外方へ旋回し、実質患者脇幅が狭くなったと同様の作用力状態となり、過剰な締付は緩和され、脇痛の無い快適なフィッティングが実現できる。
【００７６】
又、偏心脇当３０が患者に押し圧されても、緩衝材２８の厚みの厚い側が患者の脇部に当接し、押し圧に係る痛みを軽減できる。第２実施例において、縦軸着部１５の構成を、第１参考例と同様に、軸受連結体１８のアーム側端を縦向軸１６とし、脇アーム６の基端を縦向軸１７として連結してもよい。この様にすればアーム７の曲げも少なくなり、旋回時の作動スペースも狭くでき一層好都合である。
【００７７】
図４に示す第２参考例は、第１実施例の間隔調節機構２１と同様の目的で、牽引力で脇締力を発生させ上半身の把持を補助する脇当８のフィッティング機構を患者や治療条件に応じて調整可能とするスイング調節機構３３に関するものである。
【００７８】
ベッド１の上半身載台５の下方にスライドガイド３５を取着し、ベッド１に貫通スペ−ス２６を設けそこからスライドガイド３５にスライダ−４３を介して脇ア−ム６を立てて設け、脇当８をベッド１面に突出させたものである。
【００７９】
尚、図示を省略するが、従来公知の実開平６−５８９２６号と類似して、ア−ム７をベッド側方より回してスライドガイド３５に設けてもよい。
実開平６−５８９２６号では、スライドガイド３５は一定の角度に固定されており、牽引力に作用で生ずる患者への脇締力は、スライドガイド３５の開き角度（成分）に応じた一定の比率で、牽引力に比例的に生ずる。
【００８０】
図１乃至図３のア−ムスイング式のように、患者の脇幅即ち脇ア−ム６の開き幅によって脇締力は変わることはないが、牽引力に一定の比例的である為、脇締力が過少、過大となることがあり、角度調整化されることによって、フィット性、更に、把持性は改善される。
【００８１】
以下参考例の詳細は省くが、脇当８は、ベッド１面より上に突出した治療位置からベッド１面のおよそ面一まで下降した位置の間を出し入れし、出し入れをロックボタン３４により操作して止めるものである。
【００８２】
上記参考例では脇当８、脇アーム６を保持して自在に摺動させるスライドガイド３５の開き角度βを患者や牽引治療状況に合わせて調整するもので、スライドガイド３５のスイングゾーンをスイング調節機構３３で調節し、更に、バネテンションを利用して自動微調整するものである。
【００８３】
スライドガイド３５は一端を縦軸４４でフレ−ム２に取着し他端は所定の角度で横スイングする構造になっている。ベッドセンタ−（＝ベッド中心線方向）からのスイング角度（＝開き角度）βは通常１１０乃至１６０度である。
【００８４】
スライドガイド３５の他端は引きバネ３６に連結されており、上方（＝患者頭方向）に所定のバネ力で引っ張られている。
更に、他端には、一定の幅で牽引作用中に幅調整できる調整ガイド３７に装着されており、牽引力とバネ力のバランスによりスライドガイド３５の開き角度（＝スイング角度）βが自在調節できるものである。
【００８５】
患者がベッド１上に乗り腰装具２５を装着し、脇当８を治療牽引位置にセットした後、牽引力を増してゆくと、牽引力に応じて、所定の開き角度βで発生する分力で、脇当８の締付けが得られ、脇当８に上半身が把持される。
【００８６】
牽引力が一定の値より大きくなると引きバネ３６の引力に抗してスライドガイド３５を開くようになり、調整ガイド３７の溝を移動して外方に動き開き角度βが大きくなり、次第にスイング角度は最大に開いたガイド状態となり、脇締力は過剰に増大せず、牽引力は大きくなって脇部が過剰に痛くなる問題は解消される。
又、ネジハンドル３８の操作によってネジシャフト４１を回し左右のネジホルダ−４２の間隔を調整しスライドガイド３５のスイング角度を略適正ゾ−ンにセットできる。
【００８７】
即ち、患者の体格、脇幅によってスイング角度の大まかな調整を行ない、更に、牽引力にバランスして脇締め力を自動調整が出来るので、牽引力が大きい場合でもフィット性の良い脇部の痛みが少ない治療が可能となる。
【００８８】
【発明の効果】
本発明における脇ア−ム６の基端は、先ず、ベッド１のフレーム２に横軸着部１２を設けそれに軸受連結体１８を連結し、更に、その他端に縦軸着部１５を設けて接続されるものであるから、脇ア−ム装着部１０に係る構成を簡素にでき、特に、スム−ズで的確な作動が要求される脇ア−ム６の縦スイング横スイング動作部をシンプルに出来て、好都合である。
【００８９】
又従来技術のものはフレ−ム２に取付けた第１の軸（＝縦軸）に設けた横向きの長軸の第１ア−ム端を横軸にして第２ア−ムを連結してなる為、第２ア−ムの縦旋回の中心位置と角度が患者体格等によって変わるが、本発明における脇ア−ム６は、先ず、横軸着部１２をフレ−ム２に設け、更に、縦軸着部１５を軸受連結体１８で直結した脇ア−ム装着部１０に設けたア−ム７のみで確実に構成される為、脇ア−ム６の縦旋回の中心位置と角度が患者体格等によって変わることは無く、牽引治療中に脇ア−ム６がグラグラして撓んで脇当８が、左右アンバランスになったり、意図しない方向に動いたり意図しない位置を呈するといった不都合な事態も生じず、患者の脇部に確実に装着でき確実に締付力を確保でき、好都合である。
【００９０】
本発明に係る横軸着部１２は左・右横軸着部１２ａ・１２ｂでなり、左横向軸受１４ａと右横向軸受１４ｂとはほぼ同一軸心にフレ−ム２に設けられる。
横軸着部１２は短寸軸でコンパクトで、然も、横軸着部１２に縦軸着部１５が一体的に取着されているので、牽引治療中に軸部分及び脇ア−ム６が撓んで左右のズレが出たり脇当８が意図しない方向に動くといった不都合な事態は生じず、左右バランス良く、患者の脇に確実に添った状態に装着でき、好都合である。
【００９２】
本発明は、脇アーム６のアーム７先に取着される脇当８が、牽引治療中に、患者脇部に対して、脇部圧接面のフィッティングを向上するよう枢着軸受２９構造や首振り構造３２の自動的可動調整構造４５とされるので、脇当８が、脇部近辺の不適当な位置に留ることなく、適宜な角度に動きながら患者脇部に掛かる作用力を受ける好適位置に至り、脇部に適切に添い、上半身保持性が良く脇痛も少なく、好都合である。
【００９３】
本発明に係る間隔調節機構２１は、軸受連結体１８のセット幅を調節して縦軸着部１５の軸心幅を調節するもので、患者の脇幅や治療条件によって縦向軸１６の幅を変えることで牽引作用での脇ア−ム６の作用角度を調節し脇締力の程度を調整することができ脇痛が少なく上半身保持性の良い治療が可能となる。
【００９６】
即ち、上述の間隔調節機構２１は、牽引作用力に応じて、直接的相関によって、脇締力が発生するが患者の体格、脇幅、或いは治療条件によって発生する脇締力が過少、過大となることへの対応を可能とするもので、スイング角度（＝開き角度）を事前調整可能とすることによって、適切なバランスの取れた作用をなすように調整可能なものであり、好都合である。
【図面の簡単な説明】
【図１】本発明の第１実施例の部分斜視図である。
【図２】本発明の第１参考例の部分斜視図である。
【図３】本発明の第２実施例の部分斜視図である。
【図４】本発明の第２参考例の部分斜視図である。
【図５】本発明の第１実施例の脇当の立位角度をしめす部分図である。
【符号の説明】
１ベッド
２フレーム
６脇アーム
７アーム
８脇当
１２横軸着部
１２ａ左横軸着部
１２ｂ右横軸着部
１５縦軸着部
１８軸受連結体
２１間隔調節機構
２７芯
３３スイング調節機構[0001]
[Industrial application fields]
The present invention relates to an improvement of a traction bed used for traction treatment or training of lumbar spondylosis.
[0002]
[Prior art]
As a conventional technique, there is a technique disclosed in Japanese Patent Laid-Open No. 3-16563. The bed for traction treatment in this technique is composed of a bed frame and a side arm, and the side arm has two first left and right axes (= vertical axis) provided on the bed frame, A first arm of a long axis that turns to the first shaft, a second arm that is attached to the long axis (= horizontal axis) of the first arm so as to be vertically rotatable, and a second arm -It is composed of a side arm at the tip of the mud.
[0003]
Further, the distance between the two first axes is narrower than the distance between both sides of a towed therapeutic person (hereinafter referred to as a patient) who is supine on the bed. In particular, the first axis (= vertical axis) ) To be lower than the bed surface.
[0004]
[Problems to be solved by the invention]
The armpit 8 according to the conventional device is tightened by a traction force applied to the patient, but the structure of the arm for arm that supports the armpit is complicated and obstructive, and from the side of the armpit. Since the tightening is operated from the first arm of the long axis via the second arm, the left and right misalignments, backlash and the like are likely to occur and the movement is uneven.
In addition, since the horizontal axis Q of the axis about which the second arm rotates vertically is provided on the long axis that rotates horizontally, the angle of rotation and the axis Q change depending on the patient and the treatment position, and the side arm operates. There was a problem that the situation changed and the fitting to the upper body changed.
[0005]
On the other hand, since the axial center position of the first arm is fixed and can only be operated in the width direction, treatment tailored to individual differences such as the patient's physique and side features, etc. cannot be performed, and the side tightening force becomes too strong. There was a problem that the side part hurts and the fitting to the patient side part worsened.
[0006]
The present invention solves the above-mentioned problems, the arm arm structure is appropriate, and the armpit fitting has a degree of freedom.High, adjustable side tightening force, less side painThe purpose is to provide a tow bed with a side arm.
[0007]
[Means for Solving the Problems]
That is, according to the present invention, a pair of left and right side arms (6) are provided on the front side or the back side of the bed (1), and the horizontal shaft attaching part (the horizontal shaft attaching part (18) that supports the bearing coupling body (18) so as to be pivotable in the vertical direction 12) is provided on the frame (2) of the bed (1), and the base end of the bearing coupling body (18) that pivots in the vertical direction is coupled to the horizontal shaft attachment portion (12), so that the bearing coupling body (18) The other end is provided with a vertical axis attachment portion (15), and the side arm (6) is supported on the vertical axis attachment portion (15) so as to be able to turn in the lateral directionThe side arm (6) has the arm (7) and the side arm (8), and the arm (7) supports the side arm (8) so as to be rotatable.It is a tow bed with a side arm that is characterized.
[0008]
The bed (1) is provided with a pair of left and right side arms (6) on the front side or the back side, and the horizontal shaft attaching part (12) that supports the bearing coupling body (18) so as to be pivotable in the vertical direction is provided on the bed (1 ), The base end of the bearing coupling body (18) pivoting in the vertical direction is connected to the horizontal axis attaching portion (12), and the vertical axis is attached to the other end of the bearing coupling body (18). A portion (15) is provided, and the side arm (6) is supported on the longitudinal axis attaching portion (15) so as to be pivotable in the lateral direction, and an interval between the left and right axis centers of the longitudinal axis attaching portion (15) is adjusted. An adjustment mechanism (21) is provided.
[0011]
A tow bed with a side arm (6) for holding the upper body by applying the armpit (8) to the patient's side during traction treatment, the arm (6) being armpit (8 ) Generates a side-clamping force that tightens both sides of the patient from the outside and / or above, and assists in holding the upper body. The spacing adjustment mechanism (21) allows the bed (1) of the side arm (6) to be The side tightening force can be adjusted by changing and adjusting the mounting position relationship.
[0012]
[Action]
The present invention is provided with a side arm 6 on a frame 2 of a bed 1 for traction, and is used for lumbar traction treatment.
[0013]
That is, a traction machine (not shown) is installed at one end of the bed 1, the patient is laid on the bed 1, and the armrests 8 of the armature 6 are moved and applied to both sides of the patient.
A waist orthosis 25 is attached to the patient's waist, and the waist orthosis 25 is pulled through a wire (not shown) by the traction machine, and an appropriate traction force is applied to the patient's lumbar spine.
[0014]
When the above-mentioned traction force is applied to the side arm 6 in the direction of the patient's foot, the side arm 6 is appropriately laterally rotated about the longitudinal axis wearing portion 15 provided on the frame 2 of the traction bed 1. Further, the bearing coupling body 18 that supports the vertical axis attaching portion 15 is supported by the horizontal axis attaching portion 12 and can be appropriately vertically rotated with the side arm 6 connected to the horizontal axis attaching portion 12 as an end.
[0015]
In the treatment mode in which the armpit 8 is attached to the patient, the armature 6 is freely pivoted in the lateral direction at both sides of the patient about the longitudinal axis 15 and is connected to the bearing with the armature 6. The body 18 part is freely movable in the vertical direction, and the armrest 8 can be attached to and detached from the patient side.
[0016]
The arm 6 is in contact with the patient's side, and prevents movement of the patient in the foot direction while tightening the patient's side during traction treatment. The armrest 8 attached to the tip of the arm 7 contacts the patient's side.
[0017]
A side arm 6 is attached to the front of the bed 1, and during traction treatment, the side arm 6 is moved downward and the armpit 8 is applied to the patient's side. Alternatively, a side arm 6 is attached to the back of the bed 1, and at the time of traction treatment, the side arm 6 is moved upward so that the side abutment 8 passes through the penetration space 26 and is placed on the upper surface of the bed 1. Protrude and apply to patient side.
[0018]
The horizontal shaft receiving portion 12 supports the bearing coupling body 18, the vertical shaft receiving portion 15 connected thereto, and the side arm 6 so as to be swingable in the vertical direction. Preferably, the centers of the left and right lateral shaft receiving portions 12a and 12b related to each turn are substantially the same axis. Accordingly, the device for operating the armature 6 has a compact structure and can be easily operated, can be integrated, and the left and right balance can be balanced, and the adjustment of the axial distance of the vertical axis attaching portion 15 can be facilitated.
[0020]
The movable adjustment structure 45 provided between the core 27 at the tip of the arm 7 and the armrest 8 holds the armrest 8 so that the arm 7 can rotate.
The armpit 8 that is pivotally attached to the arm 27 tip 27 at the armpit of the human body is pivotable by a predetermined angle at the point of action of the traction force to the armpit of the patient, During the traction treatment, the armpit 8 is automatically adjusted in the load direction and rotated to fit the armpit pressure on the side of the patient in a well-balanced state.
[0021]
Spacing adjustment mechanism 21Thus, according to the patient's individual differences and treatment conditions, the attachment position relationship of the side arm 6 to the bed 1 is changed and adjusted, and the degree of the side tightening force generated by the action of the traction force is adjusted.fittingImproves sex and enables comfortable treatment.
[0022]
【Example】
A bed 1 on which a supine patient is placed according to the first embodiment of the present invention shown in FIG. 1 is usually slidable on a frame 2 made of a rectangular frame or the like, a leg 3 that supports the frame 2, and a frame 2. The upper end body 5 and the lower body stage 4 to be placed, the side arm mounting portion 10 attached to the adherend portion 2a of the frame 2, and the base end are fixed to the side arm mounting portion 10. The side arm 6
[0023]
In the upper part of the upper body stage 5 of the bed 1, a pillow part 9 on which a patient's head is usually placed is formed.
[0024]
The side arm 6 holds the upper body while holding the patient's upper side while preventing the patient's upper body from moving in the foot side direction during traction treatment.
The side arm 6 has a base attached to the side arm mounting portion 10 and is capable of joint-like movement.
[0025]
The side arm 6 is located below the back of the bed 1 from the position of the side arm mounting portion 10 toward the patient's foot from the position of the side arm mounting portion 10 with the longitudinal axis 15 of the side arm mounting portion 10 as the base end. It extends along the bed 1.
[0026]
The side arm 6 has an arm 7 formed by bending the front part upward in the surface of the bed 1 and a front part of the arm 7 as a core 27 and an appropriate cushioning material 28 is attached thereto. It is comprised from the side support 8 formed in a column shape etc. The arm 7 is attached by a vertical axis attaching portion 15 so as to be capable of swinging at an appropriate angle.
[0027]
The armpit 8 is usually provided with a cushioning material 28 such as sponge around the core 27 of the arm 7 and further covered with a soft skin material or the like.
[0028]
The armpit 8 is preferably formed in a curved shape in the extending direction of the core 27 in order to improve the fitting to the armpit and the grip of the upper body, and in the curved shape of the armpit 8 during traction treatment. The concave curved surface side is in contact with the patient's armpit.
[0029]
Although not shown, the other shape of the armpit 8 is formed in a gradually increasing diameter shape (= trumpet shape, drum shape, etc.) in the extending direction of the armpit 8, and the recess of the armpit 8 is being used during traction treatment. The curved curved side faces the side of the patient.
[0030]
The concavely curved surface portion of the gradually increasing diameter shape portion has the effect of moderately holding the patient's side to the bed surface during traction treatment and the effect of improving the smooth fitting property to the armpit, so that the traction force applied to the human side is Disperses and improves pain while acting hard to come off.
[0031]
The side arm mounting portion 10 can turn the side arm 6 in the vertical and horizontal directions, sets the side arm 6 at the treatment position of the patient, and places the side arm 8 on the patient during traction treatment. Hold it in an appropriate position.
[0032]
The side arm mounting portion 10 includes a shaft support portion 11 that is attached to the adherend portion 2a, a lateral shaft attachment portion 12 that includes a lateral shaft 13 and a lateral bearing 14 that are supported by the shaft support portion 11 and a horizontal axis. The bearing coupling body 18 is attached to the shaft coupling portion 12, and the vertical axis coupling portion 15 is provided at the other end of the bearing coupling body 18. Furthermore, the interval between the left and right axis centers of the longitudinal axis attaching portion 15 of the bearing coupling body 18 is adjusted.Spacing adjustment mechanism 21Is attached. In addition, the point that the axis of the horizontal axis attaching part 12 is fixed is greatly different from the prior art mentioned above.
[0033]
The arm 7 is attached and extended so as to be capable of swinging and swinging by means of the horizontal shaft attaching portion 12, and can be swung and swung for attaching the patient to the side arm 6 and applying a tightening force by a traction action.
The vertical axis attaching portion 15 is extended to the horizontal axis attaching portion 12 which is a fixed axis via a bearing coupling body 18 and is attached so as to be able to perform a reliable vertical swing.
[0034]
Therefore, the arm 7 is attached to the vertical swinging member attached to the frame 2 by the side arm mounting portion 10 so as to be able to swing sideways.
[0035]
The horizontal bearing 14 constituting the horizontal shaft mounting portion 12 has left and right horizontal bearings 14a and 14b corresponding to the left and right arm 6 and, further, the vertical bearing 17 is left and right vertical bearings 17a and 17b. Have
The vertical axis 16 constituting the vertical axis attaching portion 15 has left and right vertical axes 16 a and 16 b corresponding to the left and right side arms 6. Accordingly, the side arm 6 can swing horizontally and swing vertically separately on the left and right sides.
[0036]
The mounting mechanism 19 provided on the left and right lateral shaft receiving portions 12a and 12b omits the detailed mechanism, but moves the armrest 8 to the non-projecting standby position below the upper surface of the bed 1 and the armpit 8 upward. The penetrating space 26 of the bed 1 passes through the bed 1 and protrudes upward from the surface of the bed 1 and is appropriately moved to the use position during traction treatment and stopped at the moved position. Then, it can be attached and detached by operating the mounting handle 20.
[0037]
If the attachment handle 20 is rotated forward and counterclockwise about the extending direction as the axis, the attachment handle 20 advances and retreats. That is, the left and right lateral bearings 14a and 14b can be hooked on the lateral shaft 13 by retracting the mounting handle 20 and rotating the mounting handle 20 forward and then moving the mounting handle 20 forward. .
[0038]
The armrest 8 that has been moved to the standby position or the use position and stopped is set and held at a predetermined position with respect to the bed 1 surface or the center of the horizontal shaft attaching portion 12. The normally preferred standing angle θ of the armpit 8 with respect to the bed 1 is 60 to 95 degrees, and more preferably 70 to 90 degrees (see FIG. 5). In FIG. 5, L is a traction force load position. Further, the swivel standing angle α formed with the axis of the horizontal shaft attaching portion 12 of the armrest 8 is preferably 85 degrees to 130 degrees, and more preferably 90 degrees to 120 degrees.
[0039]
When the armpit 8 having a standing angle θ of 60 to 95 degrees with the surface of the bed is pulled with the patient in the traction direction during the traction treatment, the cushion of the armpit 8 and a frictional effect are also added, and the armpit of the patient is The action of holding on the bed 1 surface occurs, the upper arm 6 has good upper body holding ability, and the fit to the body is improved. Further, the arm 6 is automatically moved to the left by the traction force action. The right armrests 8a and 8b are moved so as to be suitably attached to the patient's side by the swinging and swiveling action from the axis of the longitudinal axis attaching portion 15, and the patient's upper body is held so as to tighten the armpit.
[0040]
That is, if the standing angle θ of the bed 1 of the armpit 8 exceeds 95 degrees, the force to lift to the patient's side by traction increases and becomes unstable, and if it is less than 60 degrees, the armpit 8 is in front of the patient's armpit. The armpits 6 and the armature 6 are pushed up, so that the armpit 8 is easily disengaged from the armpits and the condition is bad. A more preferable bed 1 surface standing angle θ is 70 to 90 degrees.
[0041]
Next, the swivel standing angle α that the standing position of the armrest 8 forms the axis of the horizontal shaft receiving portion 12 is an important factor for the arm function, and is preferably 85 to 130 degrees.
[0042]
That is, when the turning standing angle α is less than 85 degrees, an upward force is generated in the side arm 8 due to the action of the patient side by the traction force, and the side arm 6 is lifted upward. Because it is out of the club, it is bad. Further, if it exceeds 130 degrees, the side arm 8 is pushed downward, the side part floats, and the force to turn the side arm 6 downward becomes excessive. As a result, there is a problem such as a scraping of the armpits 8 and the horizontal shaft attaching portion 12 is located behind the lower surface of the bed 1 in terms of structure, so that the arm structure is complicated and uncomfortable.
Further, a more preferable turning standing angle α is 90 degrees to 120 degrees.
[0043]
The side abutment 8 is accompanied by a setting mechanism (not shown) in which the position of the side arm 6 or the like is set in the vicinity of the treatment position height of the bed 1.
The setting mechanism balances the armature 6 so that the armpit 8 does not fall off during traction treatment and an extra external force is not applied.
[0044]
The interval between the bearing coupling bodies 18 can be changed and adjusted by the interval adjusting mechanism 21.
The interval adjusting mechanism 21 includes a left / right interval guider 23 protruding from the left / right bearing coupling bodies 18a, 18b, a screw shaft 22 that passes through each of the interval guiders 23 and changes the screw direction, and a screw shaft And an adjustment handle 24 that rotates 22.
[0045]
When the adjustment handle 24 is rotated, the distance between the left and right bearing coupling bodies 18a and 18b changes, and the position of the vertical axis attaching portion 15 which is the center of the side arm 6 swinging and turning can be adjusted.
[0046]
In other words, the attachment position and interval of the vertical axis attaching part 15 to which the arm 6 is attached can be changed and adjusted, and the patient's side part is less painful corresponding to the difference in treatment conditions such as traction force and the patient's physique. Fitting is possible.
[0047]
The distance (= width) between the left and right vertical axis landing portions 15a and 15b is preferably a position narrower than the width of both sides of the patient, and the center position of the armrest 8 at the treatment position and the vertical axis landing portion 15 The opening angle formed by the axis (= the angle of expansion of the left and right armatures 6) is usually 20 to 60 degrees, and more preferably the patient's physical condition and treatment conditions It is to adjust to an opening angle with good fit and less pain. If it is the above-mentioned preferable aspect, the holding | grip property to the body of the armpit 8 is good, and suitable treatment is possible.
[0048]
When the distance between the shaft centers of the left and right vertical axis attaching portions 15a and 15b is too narrow (= the working angle of the side arm 6 becomes too large), the side tightening force becomes excessive and the side becomes painful when the traction force increases. . The appropriate conditions for armpit pain vary with individual differences such as traction and physique. Therefore, it is preferable that the angle formed by the center can be adjusted.
Further, since the arm 6 has a structure in which the arm 7 is directly connected to the shaft center of the vertical axis attaching portion 15, the arm clamping action works accurately and can be suitably operated without backlash.
[0049]
If the armpit 8 is pulled in the towing direction during the tow treatment, the left and right armpits 8a and 8b move by a force acting in a direction in which the width between the two members becomes narrow.
[0050]
In FIG. 1, 3 is a leg, 4 is a lower body stage, and 25 is a waist brace.
[0051]
At the time of traction treatment, the patient wears the waist brace 25 and lowers the arm 6 and the armpit 8.
Next, the patient is laid on the bed 1 and then the operation is performed so that the mounting handle 20 is grasped and the armrest 8 is rotated upward.
[0052]
The side arm 6 does not move to a position where the side arm 76 is unnecessary due to the action of the mounting mechanism 19, and the side arm 6 can be moved within the required operating range.
[0053]
The armpit 8 is applied to both sides of the supine patient and the patient's side is gripped.
In the first embodiment, the armature 6 is moved upward, and the armpit 8 is passed through the penetration space 26 and applied to the patient's side, so that the armature 6 is located above the patient. Is not present in the bed 1 and is present under the bed 1 so that the patient does not collide with the arm 6 and is safe. The arm 6 does not occupy space on the bed 1 and does not get in the way. The design is also refreshing.
[0054]
Next, the waist orthosis 25 is pulled with a traction machine (not shown) through a wire or the like (not shown), and the patient's waist is pulled in the direction of the foot.
While being pulled by the traction machine, the patient gradually moves in the direction of his / her foot, and at that time, the armrest 8 hits both armpits of the patient.
[0055]
A traction force in the direction of the patient's foot is applied to the armpit 8 through the patient. When this traction force is applied to the side arm 8, the side arm 6 holding the side arm 8 is also pulled in the direction of the patient's foot.
The side arm 6 generates a rotational moment by the acting force of the side of the patient, operates with the vertical axis 15 as the central axis, and torque is applied so that the left and right side abutments 8a and 8b tighten the patient. Occurs.
[0056]
The arm 7 between the longitudinal axis attaching portion 15 and the side armrest 8 has a simple shape that pivots around a longitudinal bearing 17 that is directly connected and fixed to the bearing connecting body 18, and does not get in the way. Right and left displacement and backlash do not occur, and it operates suitably with good balance.
[0057]
That is, the side arm mounting portion 10, particularly the bearing coupling body 18, is securely provided on the shaft support portion 11 and the lateral shaft attachment portion 12 fixed to the adherend portion 2 a of the frame 2. Due to the tension of the machine, the arm 7 and the armrest 8 are smoothly rotated toward the center of the bed 1 in the lateral direction with a good balance between left and right, and the distance between the left and right armpits 8 is automatically adjusted appropriately.
[0058]
The adjustment of the side arm 6 can be changed and adjusted according to the patient and treatment conditions, so that the side abutment 8 has less pain on the side of the patient, fits in an appropriate state with good gripping properties, and allows comfortable treatment. .
[0059]
The left and right side abutments 8a and 8b securely hold the both sides of the patient so as not to hurt during the treatment, and the patient is less tired.
As described above, the armpit 8 during the traction treatment can press both sides of the patient with an appropriate force in accordance with the traction force and physique applied to the treatment. Does not come off the patient and has good grip.
[0060]
The position adjustment mechanism 21 changes and adjusts the positions and distances of the left and right horizontal axis attaching portions 12a and 12b, and the armrest 8 is suitably fitted in accordance with the difference in the physique of the patient and the treatment conditions.
[0061]
Further, the tightening force on both sides of the patient is preferably adjusted so that the armpit 8 is applied to both sides of the patient with a suitable pressure corresponding to the pulling force during the traction treatment.
The armpit 8 is a curved surface with a curved or hourglass shape and hits the armpit of the patient. But it is effective.
[0062]
Therefore, a treatment state corresponding to any patient is possible, and it is not necessary to wear a side arm that is excessively tightened.
[0063]
As shown in FIG.First reference exampleUnlike the first embodiment, the extending side of the side arm 6 is attached to the front side of the bed 1. The mechanism is the same as that of the first embodiment, and the horizontal shaft attachment portion 12 is fixed to the frame 2 by the shaft support portion 11, but the direction of the fixed axis is slightly eight-shaped with respect to the bed 1 direction. This is different from the first embodiment in that the axial direction is changed to that of the horizontal axis attaching portion 12. As in the first embodiment, the horizontal shaft receiving portion 12 is connected to the bearing connecting body 18 toward the front, and the vertical shaft receiving portion 15 is formed at the tip, which is directly connected to the side arm 6.
[0064]
The side arm 6 includes an arm 7 and a side abutment 8 formed at the tip of the arm 7, and a side abutment guide 39 that reduces friction at the time of contact with the bed 1 is provided at a front portion of the side abutment 8. The guide 39 reduces the frictional resistance between the armpit 8 and the bed 1 when the armpit 8 rubs against the surface of the bed 1.
[0065]
In use, first, the side arm 6 is raised, and the side arm 6 opens slightly outwardly in the direction of the horizontal shaft receiving portion 12 and is slightly swung upward. Since the side arm 6 turns outward, it is convenient without being disturbed.
[0066]
Next, the patient is placed on the bed 1. Next, the arm 6 is lowered, and the armpit 8 is placed on the upper body placing table 5 against the patient's side.
Since the distance between the axial centers of the vertical axis attaching portions 15 is normally narrowed, the arm 7 approaches, so it is convenient that it does not get in the way even if it is not greatly curved outward.
[0067]
The armpit 8 is slightly lifted from the surface of the bed and set with a therapeutic traction force. The mechanism is the same as that of the first embodiment. 95 degrees is preferable, and the standing angle α formed with the axis of the lateral shaft attaching portion 12 of the armrest 8 is preferably 85 to 130 degrees. In addition, a function is also added in which a side abutment guide 39 made up of a roller provided at the lower part makes contact with the upper surface of the upper body mounting table 5 during the traction operation.
[0068]
The armpit guide 39 improves the sliding of the armpit 8 and the upper body stand 5, enables smooth towing to be repeated, eliminates subtle cosmetics and itchiness, and the bed 1 slides against the armpit 8. Even in such a case, damage during the traction operation or damage to the surface of the bed 1 can be reduced, and a smooth treatment can be performed, and damage to the bed 1 and the armrest 8 can be solved.
[0069]
When a traction force acts on the armpit 8 via the patient, the left and right armpits 8a and 8b move in a direction in which the interval is narrowed, and the upper body is held by tightening both sides of the patient while bearing the traction force on the armpit.
[0070]
A pivot bearing 29 is provided at the center of the joint between the arm 7 and the armrest 8, that is, where the traction force acts, and the armrest 8 is supported by the pivot bearing 29 at a predetermined minute angle (= in the standing direction in one example). Then, the bed can be rotated ± 10 degrees to the left and right. The armpit 8 is composed of a suitable gap or a soft material core at the end of the arm 7 and can be rotated by a small angle, and is automatically adjusted in the direction of the force applied to the armpit 8, and this rotation is The fit to the side is improved. Side pain problems and fit are improved.
In FIG. 2, 40 is an automatic adjustment space.
[0071]
As shown in FIG.Second embodimentIsFirst reference exampleThe horizontal axis attaching part 12 in FIG. 1 is configured to have the same left and right axis, and the left and right vertical axis attaching parts 15a and 15b are brought close to each other (by being sandwiched between the left and right axis supporting parts 11 for compact storage). Yes, mechanicallyFirst reference exampleIt is the same.Second embodimentSince the side arm 8 can be freely rotated by one arm on each side from the support portion of the side arm 6, the arm 7 is not bent or rattled, and there is no left / right motion spot. The movement is extremely smooth. Further, the armpit 8 is provided with an eccentric armpit 30 that has a built-in eccentric 31 for improving fitting to the armpit and is a swing structure 3 2.
[0072]
The eccentric side abutment 30 is formed in a cylindrical shape by bending a hard eccentric 31 in an eccentric shape and wrapping it with a cushioning material 28.
[0073]
The arm 7 is pivotally attached to a position eccentric to one side on the base end surface (upper end surface in FIG. 3) of the eccentric side abutment 30 via the swing structure 32. The eccentric 31 is provided at a slightly eccentric position of the armrest 8.
[0074]
During traction treatment, when a traction force is applied to the eccentric armpit 30 through the patient, the arm arm 6 exerts a force to pinch the armature 6 from the side, but the left and right eccentric armpits 30 extend in the direction in which the interval decreases and downward. It automatically moves eccentrically in a direction that balances with the pulling force that is pulled by, and the effect of tightening both sides of the patient in balance with the pulling force is obtained, and a good fitting effect is obtained.
[0075]
That is, if the patient's armpit width is large, the opening angle of the armature 6 to the left and right during towing is large, and the armrest tightening force is excessive, the eccentric armrest 30 is automatically centered by the eccentric structure and turns outward. When the patient's armpit width is narrowed, the acting force is the same, and excessive tightening is relieved, and a comfortable fitting without armache can be realized.
[0076]
Even if the eccentric armpit 30 is pressed by the patient, the thicker side of the cushioning material 28 abuts on the patient's side, reducing the pain associated with the pressing pressure.Second embodimentIn FIG.First reference exampleSimilarly, the arm side end of the bearing coupling body 18 may be connected as the vertical axis 16, and the base end of the side arm 6 may be connected as the vertical axis 17. In this way, the bending of the arm 7 is reduced, and the working space during turning can be reduced, which is more convenient.
[0077]
As shown in FIG.Second reference exampleFor the same purpose as the interval adjusting mechanism 21 of the first embodiment, the swing mechanism 8 can adjust the fitting mechanism of the armrest 8 that generates a side tightening force by traction force and assists in gripping the upper body according to the patient and treatment conditions. This relates to the adjusting mechanism 33.
[0078]
A slide guide 35 is attached below the upper body stage 5 of the bed 1, a through space 26 is provided in the bed 1, and a side arm 6 is provided on the slide guide 35 through a slider 43. The armpit 8 is projected from the surface of the bed.
[0079]
Although not shown in the figure, the arm 7 may be provided on the slide guide 35 by turning it from the side of the bed in the same manner as in the publicly known Japanese Utility Model Laid-Open No. 6-58926.
In Japanese Utility Model Laid-Open No. 6-58926, the slide guide 35 is fixed at a constant angle, and the side tightening force applied to the patient by acting on the traction force is a constant ratio corresponding to the opening angle (component) of the slide guide 35. It occurs in proportion to the traction force.
[0080]
The arm clamping force does not change depending on the armpit width of the patient, that is, the opening width of the armature 6 as in the arm swing type of FIGS. 1 to 3, but it is constant proportional to the traction force. The force may be too small or too large, and by adjusting the angle, the fitting property and the gripping property can be improved.
[0081]
Less thanReference exampleAlthough the details of the armrest 8 are omitted, the armpit 8 is inserted and removed between the position where it is lowered from the treatment position protruding above the surface of the bed to approximately the same surface of the bed 1, and the operation is stopped by operating the lock button 34. It is.
[0082]
the aboveReference exampleThen, the opening angle β of the slide guide 35 that freely slides while holding the side abutment 8 and the side arm 6 is adjusted according to the patient and the traction treatment situation, and the swing adjustment mechanism 33 is used to adjust the swing zone of the slide guide 35. Adjustment and automatic fine adjustment using spring tension.
[0083]
The slide guide 35 has a structure in which one end is attached to the frame 2 along the vertical axis 44 and the other end is laterally swung at a predetermined angle. The swing angle (= opening angle) β from the bed center (= bed center line direction) is usually 110 to 160 degrees.
[0084]
The other end of the slide guide 35 is connected to a tension spring 36 and is pulled upward (= patient head direction) with a predetermined spring force.
Further, the other end is mounted with an adjustment guide 37 that can be adjusted in width during a traction operation with a constant width, and the opening angle (= swing angle) β of the slide guide 35 can be freely adjusted by the balance between the traction force and the spring force. Is.
[0085]
When the patient rides on the bed 1 and wears the waist brace 25, sets the armpit 8 to the treatment traction position, and increases the traction force, the component force generated at a predetermined opening angle β according to the traction force, The armpit 8 is tightened and the upper body is gripped by the armpit 8.
[0086]
When the traction force becomes larger than a certain value, the slide guide 35 is opened against the pulling force of the pull spring 36, the groove of the adjustment guide 37 is moved to move outward, and the opening angle β increases, and the swing angle gradually increases. The maximum open guide state is achieved, the side tightening force does not increase excessively, and the problem that the tractive force increases and the side part becomes excessively painful is solved.
Further, by operating the screw handle 38, the screw shaft 41 is rotated to adjust the distance between the left and right screw holders 42, and the swing angle of the slide guide 35 can be set to a substantially appropriate zone.
[0087]
In other words, the swing angle is roughly adjusted according to the patient's physique and armpit width, and further, the armpit tightening force can be automatically adjusted in balance with the traction force. Treatment becomes possible.
[0088]
【The invention's effect】
As for the base end of the armature 6 in the present invention, first, the horizontal shaft attachment portion 12 is provided on the frame 2 of the bed 1 to which the bearing connecting body 18 is connected, and the vertical end attachment portion 15 is provided at the other end. Since it is connected, the structure related to the side arm mounting part 10 can be simplified, and in particular, the vertical swing side swing operation part of the side arm 6 that requires smooth and precise operation is simple. It is possible and convenient.
[0089]
In the prior art, the second arm is connected with the first arm end of the horizontal long axis provided on the first axis (= vertical axis) attached to the frame 2 as the horizontal axis. Therefore, although the center position and the angle of the vertical turn of the second arm vary depending on the patient's physique and the like, the side arm 6 in the present invention firstly has the horizontal axis attaching portion 12 on the frame 2, and Since the vertical arm 15 is reliably constituted only by the arm 7 provided in the side arm mounting part 10 directly connected by the bearing connecting body 18, the center position and angle of the side arm 6 in the vertical rotation Does not change depending on the patient's physique, etc., and the armature 6 wiggles and bends during the traction treatment and the armpit 8 becomes unbalanced, moves in an unintended direction, or exhibits an unintended position. This is convenient because it can be securely attached to the side of the patient and the clamping force can be ensured.
[0090]
The horizontal shaft receiving portion 12 according to the present invention includes left and right horizontal shaft receiving portions 12a and 12b, and the left horizontal bearing 14a and the right horizontal bearing 14b are provided in the frame 2 on substantially the same axis.
The horizontal shaft attachment portion 12 is a short shaft and is compact, and since the vertical shaft attachment portion 15 is integrally attached to the horizontal shaft attachment portion 12, the shaft portion and the armature 6 can be used during traction treatment. Therefore, there is no inconvenience that the right and left misalignment occurs and the armrest 8 moves in an unintended direction, and it can be conveniently attached to the patient's side with good left-right balance.
[0092]
In the present invention, the armpit 8 attached to the tip of the arm 7 of the arm 6 is in contact with the patient's arm during the traction treatment.fittingSince the pivoting bearing 29 structure and the automatic swinging adjustment structure 45 of the swinging structure 32 are used to improve the armature, the armrest 8 moves to an appropriate angle without staying at an inappropriate position near the armpit. However, it is convenient because it reaches a suitable position for receiving the acting force applied to the side of the patient, is appropriately attached to the side, has good upper body retention and little side pain.
[0093]
The interval adjusting mechanism 21 according to the present invention adjusts the set width of the bearing coupling body 18 to adjust the axial center width of the longitudinal axis attaching portion 15, and the width of the vertical axis 16 depends on the armpit width of the patient and treatment conditions. By changing the angle, the operating angle of the armature 6 in the traction action can be adjusted to adjust the degree of the armpit tightening force, so that the treatment with good upper body holding ability can be achieved with less armpit pain.
[0096]
That is, the above-mentionedSpacing adjustment mechanism 21It is possible to cope with the fact that armpit tightening force is generated by direct correlation according to the traction force, but the arm tightening force generated by the patient's physique, armpit width, or treatment condition is too small or too large. Therefore, it is convenient that the swing angle (= opening angle) can be adjusted in advance so that the swing angle can be adjusted appropriately.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a first embodiment of the present invention.
FIG. 2 of the present inventionFirst reference exampleFIG.
FIG. 3 of the present inventionSecond embodimentFIG.
FIG. 4 of the present inventionSecond reference exampleFIG.
FIG. 5 is a partial view showing the standing angle of the armpit according to the first embodiment of the present invention.
[Explanation of symbols]
1 bed
2 frames
6 Side arm
7 Arm
8 Wakiwaki
12 Horizontal shaft landing part
12a Left horizontal axis landing part
12b Right horizontal shaft landing part
15 Vertical axis landing part
18 Bearing coupling body
21Spacing adjustment mechanism
27 cores
33 Swing adjustment mechanism

Claims

A pair of left and right side arms (6) are provided on the front side or the back side of the bed (1), and the horizontal shaft attaching portion (12) that supports the bearing coupling body (18) so as to be pivotable in the vertical direction is provided on the bed ( 1) is provided on the frame (2), and the base end of the bearing coupling body (18) that pivots in the vertical direction is coupled to the horizontal shaft attachment portion (12), and the vertical axis is coupled to the other end of the bearing coupling body (18). A wearing part (15) is provided, and the side arm (6) is supported on the longitudinal axis wearing part (15) so as to be able to turn in the lateral direction . The side arm (6) includes the arm (7) and the armrest (8). ), And the arm (7) rotatably supports the armpit (8) .

A pair of left and right side arms (6) are provided on the front side or the back side of the bed (1), and the horizontal shaft attaching portion (12) that supports the bearing coupling body (18) so as to be pivotable in the vertical direction is provided on the bed ( 1) is provided on the frame (2), and the base end of the bearing coupling body (18) that pivots in the vertical direction is coupled to the horizontal shaft attachment portion (12), and the vertical axis is coupled to the other end of the bearing coupling body (18). A landing part (15) is provided, and the side arm (6) is supported on the vertical axis wearing part (15) so as to be able to turn in the lateral direction, and the interval between the left and right axis centers of the vertical axis wearing part (15) is adjusted. A pulling bed with side arms, characterized in that it is provided with a distance adjusting mechanism (21) .