Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP3801360B2 - Arm band winding device for blood pressure measurement - Google Patents
[go: Go Back, main page]

JP3801360B2 - Arm band winding device for blood pressure measurement - Google Patents

Arm band winding device for blood pressure measurement Download PDF

Info

Publication number
JP3801360B2
JP3801360B2 JP23258398A JP23258398A JP3801360B2 JP 3801360 B2 JP3801360 B2 JP 3801360B2 JP 23258398 A JP23258398 A JP 23258398A JP 23258398 A JP23258398 A JP 23258398A JP 3801360 B2 JP3801360 B2 JP 3801360B2
Authority
JP
Japan
Prior art keywords
armband
base
axis
blood pressure
outer peripheral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP23258398A
Other languages
Japanese (ja)
Other versions
JP2000060808A (en
Inventor
弘政 塚原
Original Assignee
コーリンメディカルテクノロジー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コーリンメディカルテクノロジー株式会社 filed Critical コーリンメディカルテクノロジー株式会社
Priority to JP23258398A priority Critical patent/JP3801360B2/en
Publication of JP2000060808A publication Critical patent/JP2000060808A/en
Application granted granted Critical
Publication of JP3801360B2 publication Critical patent/JP3801360B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、血圧測定に際して、円筒状に回曲された可撓性腕帯を縮径させることによりその可撓性腕帯を生体の一部に巻き付けるための血圧測定用の腕帯巻付装置に関するものである。
【0002】
【従来の技術】
長手方向における太さが異なる上腕に対しても巻きつけ強さを腕帯の幅方向において均一とすることができる血圧測定用腕帯巻付装置が知られている。たとえば、本出願人が先に出願した特願平9−130634号に記載された血圧測定用腕帯巻付装置がそれである。上記血圧測定用腕帯巻付装置は、円筒状に回曲された可撓性腕帯の基端部をその可撓性腕帯の円筒形状の略接線方向に支持する腕帯基端部固定装置と、前記可撓性腕帯の幅寸法内に位置する垂直な軸心まわりに回動可能に設けられた機枠と、その機枠に設けられ、前記円筒状に回曲された可撓性腕帯の先端部をその円筒の外周側であって略接線方向へ向かって移動させることによりその可撓性腕帯を縮径させる腕帯駆動装置とを含み、その腕帯駆動装置によって円筒状に回曲された可撓性腕帯の先端部がその円筒の外周側であって略接線方向へ向かって移動させられることによりその可撓性腕帯が縮径させられるとき、円筒状に回曲された可撓性腕帯に差し通された上腕の太さが長手方向において異なる場合には、腕帯の両側縁部に張力差が発生し、腕帯駆動装置が設けられた機枠がその張力差が解消される側へ前記腕帯の幅寸法内に位置する垂直な軸心まわりに回動させられるので、長手方向における太さが異なる上腕に対しても腕帯の巻付け強さが腕帯の幅方向において均一とされる。従って、血圧測定値の信頼性が向上するのである。
【0003】
【発明が解決すべき課題】
ところが、上記従来の血圧測定用腕帯巻付装置では、前記腕帯が上腕部に巻き付けられた後に、前記腕帯内部に備えられた膨張袋に圧力空気が供給されて、その膨張袋により上腕内の動脈が止血されるまでその膨張袋の圧力が昇圧される際に、圧力空気がその膨張袋内に均等に入らず、結果的に腕帯の巻付強さが幅方向において不均一となってしまい、前記血圧測定用腕帯巻付装置を備えた血圧測定装置において正確な血圧測定値が得られない場合があった。また、前記膨張袋内の圧力が上腕内の動脈が止血される圧力まで昇圧させられた後、その膨張袋内の圧力を徐々に降圧させる際に前記腕帯の巻き付け強さが変化してしまい、その降圧過程で得られる脈波信号にノイズが入る場合もあった。
【0004】
本発明は以上の事情を背景として為されたものであり、その目的とするところは、長手方向における太さが異なる上腕に対しても巻き付け強さを腕帯の幅方向において均一とすることができる血圧測定用腕帯巻付装置において、前記腕帯の圧力変化過程での前記腕帯の巻き付け強さの変化を抑制することにある。
【0005】
【課題を解決するための手段】
本発明者は以上の事情を背景として種々検討を重ねた結果、前記腕帯の圧力変化過程での前記腕帯の巻き付け強さが変化してしまう原因、すなわち、前記腕帯内部の膨張袋に圧力空気を供給する過程でその圧力空気が均一に入らない原因、および前記膨張袋内の圧力の降圧過程での前記腕帯の巻き付け強さが変化してしまう原因は、前記膨張袋の圧力の変化過程において、前記腕帯の端部が前記軸心まわりに回動してしまうためであることを見いだした。本発明はこのような知見に基づいて為されたものである。
【0006】
すなわち、本発明の要旨とするところは、血圧測定に際して、円筒状に回曲された可撓性腕帯を縮径させることによりその可撓性腕帯を生体の一部に巻き付けるための血圧測定用腕帯巻付装置であって、基台と、前記可撓性腕帯の端部を固定した状態で、前記可撓性腕帯の幅寸法内に位置し且つ前記基台に対して略垂直な軸心まわりに回動可能に前記基台に設けられた端部固定装置と、前記基台に設けられ、前記可撓性腕帯の前記生体の一部への加圧時には、その端部固定装置の前記軸心まわりの回動を阻止する回動阻止装置とを含むことにある。
【0007】
【発明の効果】
このようにすれば、可撓性腕帯が縮径させられるときに、その可撓性腕帯の端部を固定した状態で基台に設けられた端部固定装置が、可撓性腕帯の幅寸法内に位置し且つ基台に対して略垂直な軸心まわりに回動させられて、可撓性腕帯の巻付け強さが可撓性腕帯の幅方向において均一とされ、可撓性腕帯の生体の一部への加圧時には、基台に設けられた回動阻止装置により端部固定装置の前記軸心まわりの回動が阻止されることにより、可撓性腕帯の前記軸心まわりの回動が阻止されるので、可撓性腕帯の圧力変化過程での可撓性腕帯の巻き付け強さの変化が抑制される。
【0008】
【発明の他の態様】
ここで、好適には、前記回動阻止装置は、前記端部固定装置に固定されて前記軸心回りの円弧に沿った外周歯を有する端部側係合部材と、その端部側係合部材の外周歯と噛み合う噛合歯を備え、その端部側係合部材の外周歯に対して接近離隔方向に移動可能な可動係合装置と、その可動係合装置に作動的に連結されて、その可動係合装置を前記端部側係合部材の外周歯と係合する係合位置とその外周歯から離隔した解放位置とに位置させる可動係合装置駆動装置とを、含むものである。このようにすれば、端部側係合部材の外周歯から離隔した解放位置に位置する可動係合装置が、その可動係合装置に作動的に連結された可動係合装置駆動装置により、前記端部係合部材の前記軸心回りの円弧に沿った外周歯と係合する係合位置まで移動させられることにより、端部側係合部材と係合させられて、端部側係合部材の前記軸心まわりの回動が阻止される。すなわち、端部側係合部材を固定している端部固定装置の前記軸心まわりの回動が阻止される。従って、腕帯の軸心まわりの回動が阻止されるので、腕帯の圧力変化過程での腕帯の巻き付け強さの変化が抑制される。
【0009】
また、好適には、前記端部固定装置は、前記円筒状に回曲された可撓性腕帯のうちその円筒の下側に位置する基端部を固定する基端部固定装置と、前記腕帯の先端部を固定する先端部固定装置とを含み、前記回動阻止装置は、前記基台に設けられ、前記可撓性腕帯の前記生体の一部への加圧時には、その基端部固定装置および先端部固定装置の前記軸心まわりの回動を阻止するものである。このようにすれば、可撓性腕帯が縮径させられるときに、その可撓性腕帯の基端部を固定した状態で基台に設けられた基端部固定装置、およびその可撓性腕帯の先端部を固定した状態で基台に設けられた先端部固定装置が、可撓性腕帯の幅寸法内に位置し且つ基台に対して略垂直な軸心まわりに回動させられて、可撓性腕帯の巻付け強さが可撓性腕帯の幅方向において均一とされ、可撓性腕帯の生体の一部への加圧時には、基台に設けられた回動阻止装置により基端部固定装置および先端部固定装置の前記軸心まわりの回動が阻止されることにより、可撓性腕帯の前記軸心まわりの回動が阻止されるので、可撓性腕帯の圧力変化過程での可撓性腕帯の巻き付け強さの変化が抑制される。
【0010】
また、好適には、前記端部側係合部材は、前記基端部固定装置に固定されて前記軸心回りの円弧に沿った外周歯を有する基端部側係合部材と、前記先端部固定装置に固定されて前記軸心回りの円弧に沿った外周歯を有する先端部側係合部材とを含み、前記可動係合装置は、その基端部側係合部材および先端部側係合部材の外周歯と噛み合う噛合歯を備え、その基端部側係合部材および先端部側係合部材の外周歯に対して接近離隔方向に移動可能なものであり、前記可動係合装置駆動装置は、その可動係合装置に作動的に連結されて、その可動係合装置を前記基端部側係合部材および前記先端部側係合部材の外周歯と係合する係合位置とその外周歯から離隔した解放位置とに位置させるものである。このようにすれば、基端部側係合部材および先端部側係合部材の外周歯から離隔した解放位置に位置する可動係合装置が、その可動係合装置に作動的に連結された可動係合装置駆動装置により、前記基端部側係合部材および先端部側係合部材の前記軸心回りの円弧に沿った外周歯と係合する係合位置まで移動させられることにより、可動係合装置が基端部側係合部材および先端部側係合部材と係合させられて、基端部側係合部材および先端部側係合部材の前記軸心まわりの回動が阻止される。すなわち、基端部側係合部材を固定している基端部固定装置の前記軸心まわりの回動、および先端部側係合部材を固定している先端部固定装置の前記軸心まわりの回動が阻止される。従って、可撓性腕帯の軸心まわりの回動が阻止されるので、可撓性腕帯の圧力変化過程での可撓性腕帯の巻き付け強さの変化が抑制される。
【0011】
【発明の好適な実施の形態】
以下、本発明の一実施例を図面に基づいて詳細に説明する。
【0012】
図1、図2および図3は、図示しない自動血圧測定装置の箱体(外ケース)内に収容される血圧測定用の腕帯巻付装置10を示す図であって、図1は裏面図、図2は右側面図、図3は平面図である。上記腕帯巻付装置10の腕帯12は略水平な、すなわち基台29に対して略平行な軸線まわりに円筒状に回曲させられており、上記箱体には、生体の腕を腕帯12内に差し入れることを可能とするための比較的大きな開口が円筒状に回曲させられた腕帯12の軸心と略同心となるように形成される。なお、血圧測定時の姿勢に違和感が出ないように、通常は、腕帯12が構成する円筒の軸心Bが水平面に対して所定角度たとえば10〜15度程度傾斜するように、腕帯12が取り付けられた基台29が上記箱体に固定されている。
【0013】
上記腕帯12は、血圧測定のために上腕内の動脈を圧迫するためのものであり、図4に示すように、袋状の樹脂袋或いはゴム袋から成る長手状の膨張袋16と、ポリエステル樹脂シート、その編成帯にウレタンや塩化ビニールでコーティングしたものなどの弾性変形可能な比較的剛性の高い樹脂製、或いは比較的剛性の高い布製の長手板状の可撓性ベルト18と、その膨張袋16を内周側に位置させた状態でそれら膨張袋16および可撓性ベルト18を収容する布製或いは軟質樹脂シート製の長手状の外袋20とを備えている。これにより、比較的剛性のある可撓性ベルト18によって空間的に円筒形状が維持され、その可撓性ベルト18が上腕に巻き付けられた状態では上記膨張袋16の膨張によって上腕中の動脈が圧迫されるとともに、腕帯12をあたかも一枚の可撓性の帯のごとくに取り扱うことができるようになっている。
【0014】
図1、図2および図3において、機枠22は、長手方向の長さが前記腕帯12の幅方向の長さよりも長い上壁部24と、その上壁部24の長手方向の両端から下方向に延びる一対の側壁部26、27および底壁部28から構成されている。上記機枠22の上壁部24は、円筒状に回曲させられた腕帯12の最小径寸法よりも十分に小さい幅の長手状であり、腕帯12の円筒状の回曲形状のうちの下側に位置する基端部内の可撓性ベルト18が図示しないリベット或いはビスにより固定されている。
【0015】
上記機枠22の底壁部28の下面中央部には、後述する回転止め板58が位置固定に固設され、さらにその回転止め板58と基台29の間には、回転止め板58の下面中央部に固設されラジアル軸受30を嵌着する嵌着部材32、およびその嵌着部材32に嵌着されたラジアル軸受30が設けられている。なお、図1および図2は、嵌着部材32は省略して示してある。
【0016】
垂直軸31は、図2および、図2のA−A線を含む水平面で腕帯巻付装置10を切断した断面図である図5に示されるように、嵌着部材32の略中央部すなわち底壁部28の略中央部において、基台29に対して略垂直に、その基台29に固設され、上記ラジアル軸受30は垂直軸31の軸心まわりに回動可能に機枠22の底壁部28を支承する回転支承装置として機能している。従って、本実施例では、ラジアル軸受30の介在によって、機枠22は基台29に対して垂直軸31の軸心回りに相対回動可能となっているので、ラジアル軸受30により垂直軸31まわりに回動自在に支承された機枠22が基端部固定装置として機能している。
【0017】
図1に示されるように、前記腕帯12の先端部は円柱状の回転ドラム33の外周面に、小ネジ34により固定されている。上記回転ドラム33は、その回転ドラム33の中心を貫通し、前記腕帯12が構成する円筒の軸心Bと略平行な回転軸36により、図示しない一対の軸受けを介して機枠38の側壁40、42により支持されている。
【0018】
上記機枠38は、前記機枠22の内側に位置し、前記腕帯12が構成する円筒の軸心B方向の長さが前記機枠22の長手方向の長さよりも短い長さであり、前記軸心Bと垂直な方向の長さが回曲させられた腕帯12の最大径寸法よりも少々大きい程度の長さである底壁44、およびその底壁44の前記軸心B方向の両端から立ち上がる前記側壁40、42から構成されている。
【0019】
減速機付電動モータ46は機枠38の内側に位置した状態で、その機枠38の側壁40に固定されている。そして、この減速機付電動モータ46の出力は、減速機付電動モータ46の出力軸48に固定されたプーリ50、ベルト52、プーリ54を介して回転ドラム33に伝達され、その回転ドラム33が回転駆動されるようになっている。また、上記減速機付モ−タ46の後端部には、その減速機付モ−タ46内の回転子の回転を阻止するための電磁ブレ−キ55が設けられている。この電磁ブレ−キ55は、減速機付電動モ−タ46が腕帯12を締めつけて、その回転が停止させられると同時に作動し、腕帯12の緩みを抑制するものである。
【0020】
上記機枠38の底壁44の下面中央部には、後述する回転止め板60が固設され、さらにその回転止め板60と前記機枠22の底壁28との間には、回転止め板58の下面中央部に固設されラジアル軸受56を嵌着する嵌着部材57、およびその嵌着部材57に嵌着され、前記ラジアル軸受30と同一形状のラジアル軸受56が設けられている。なお、前記嵌着部材32と同様に、図1および図2には嵌着部材57は省略されている。
【0021】
このラジアル軸受56は垂直軸31の軸心まわりに回動可能に機枠38を支承する回転支承装置として機能しているので、ラジアル軸受56の介在によって、機枠38の底壁44は、基台29および機枠22に対して垂直軸31の軸心まわりに相対回動可能となっている。従って、本実施例では、ラジアル軸受56により垂直軸31の軸心まわりに回動自在に支承された機枠38および機枠38に支持され腕帯12の先端部を固定する回転ドラム33が先端部固定装置として機能している。
【0022】
前記機枠22の底壁部28に固設されている回転止め板58は、本実施例において基端部側係合部材として機能するものであり、図5に示すように、長手方向の一辺が前記垂直軸31の軸心を円心とする円弧状であり、その円弧に沿って形成された外周歯を備えている。また、前記機枠38の底壁44には、前記回転止め板58と同一形状の回転止め板60が、前記回転止め板58と同心位置となり且つ前記回転止め板58と平行となるように固設されている。この回転止め板60も、垂直軸31の軸心を中心とする円弧に沿って形成された外周歯を備え、本実施例における先端部側係合部材として機能している。
【0023】
ストッパ62は、垂直方向の長さが前記回転止め板58と回転止め板60との間の距離よりもやや長くされた板状であり、基台29に対して略垂直に位置し、前記回転止め板58、60と対向する先端側には、その回転止め板58、60の外周歯と噛み合う噛合歯64が形成されている。ストッパ62の先端側とは反対側の端部は、略中央部において支柱66に回動可能に固定されている長手状の連結板68の一端と接着剤或いは溶接等により、ストッパ62と連結板68が略垂直となるように連結されている。なお、図2の腕帯巻付装置10の右側面図は、上記支柱66を省略して示してある。
【0024】
上記連結板68が後述するストッパ移動装置70により支柱66を中心として回動させられると、ストッパ62は回転止め板58、60と接近離隔方向に移動し、ストッパ62の噛合歯64が回転止め板58、60の外周歯と噛み合うことにより、ストッパ62と回転止め板58、60が係合する。従って、本実施例では、連結板68により回転止め板58、60の外周歯に対して接近離隔方向に移動可能とされたストッパ62が可動係合装置として機能している。
【0025】
図6は、ストッパ移動装置70を説明するために、図5のC−C線を含む垂直平面でストッパ移動装置70を切断した端面図である。ストッパ移動装置70は基台29の側壁74に固定され、ソレノイドコイル76、そのソレノイドコイル76を収容するソレノイドボビン78、可動プランジャ80、ソレノイドボビン78を収容し磁気回路を作る磁気回路部材82、可動プランジャ80の基端部と磁気回路部材82との間に設けられたバネ84とから構成される。ソレノイドコイル76に通電されると、ソレノイドコイル76に生じる磁力により可動プランジャ80がバネ84を収縮させる側に移動させられ、ソレノイドコイル76に通電されなくなると、バネ84の弾性力によりバネ84の長さが復元する方向に可動プランジャ80が移動させられる。
【0026】
上記可動プランジャ80の先端は、前記連結板68の、ストッパ62と連結されている側とは反対の端部とピン86により作動的に連結されている。すなわち、前記可動プランジャ80が前記バネ84を収縮させる側に移動させられると、連結板68が支柱66を支点として回動させられて、回転止め板58、60と離隔した解放位置にあるストッパ62が、そのストッパ62の外周歯64が回転止め板58、60の外周歯と係合する係合位置まで移動させられる。従って、本実施例では、ストッパ移動装置70は可動係合装置駆動装置として機能している。ソレノイドコイル76に通電されている間は、可動プランジャ80はバネ84を収縮させる側に移動させられたままであるので、ストッパ62は回転止め板58、60と係合させられた状態で移動が阻止される。
【0027】
ストッパ移動装置70により、ストッパ62と回転止め板58、60とが係合させられると、回転止め板58、60の回動が阻止され、回転止め板58、60が固設されている機枠22および機枠38の垂直軸31まわりの回動が阻止される。すなわち、本実施例では、回転止め板58、60、回転止め板58、60と係合するストッパ62、ストッパ62の移動を阻止するストッパ移動装置70が、機枠22および前記先端部固定装置(機枠38および回転ドラム33)の垂直軸31まわりの回動を阻止する回動阻止装置として機能している。
【0028】
図7は、上記腕帯巻付装置10を含む自動血圧測定装置の構成を説明するブロック線図である。図において、腕帯12すなわちカフ内の膨張袋16は、圧力センサ90、排気制御弁92、および空気ポンプ94と配管96を介して接続されており、その膨張袋16を内周面に備えて円筒状に回曲された腕帯12の基端部は機枠22に固定され、且つその先端は減速機付電動モータ46により駆動される回転ドラム33により縮径および拡径方向へ移動させられるようになっている。圧力センサ90の出力信号はバンドパスフィルタ98により弁別され、脈拍に同期して発生する膨張袋16内の圧力振動である脈波信号SMが演算制御回路100のA/D変換器102に供給される。また、圧力センサ90の出力信号はローパスフィルタ104により弁別され、膨張袋16内の静圧を表すカフ圧信号SKが演算制御回路100のA/D変換器102に供給される。
【0029】
上記演算制御回路100は、CPU106、ROM108、RAM110、入力インターフェース回路112、出力インターフェース回路114などを備えたマイクロコンピュータである。CPU106は、RAM110の一時記憶機能を利用しつつ予めROM108に記憶された手順に従って入力信号を処理して駆動信号や表示信号などを出力する。
【0030】
すなわち、血圧測定に際しては、CPU106は、予め定められた手順にしたがって、減速機付電動モータ46を駆動することにより回転ドラム33を回転駆動し、腕帯12により構成される円筒の径Dを小さくしてその腕帯12の内側に配設された膨張袋16を生体の上腕部に所定の張力たとえば2乃至3本の指が上腕と腕帯12との間に挿入できる程度の張力で腕帯12の先端部側をその基端部付近において円筒の略接線方向へ引っ張ることにより、腕帯12を縮径させて上腕に巻回する。
【0031】
次いで、CPU106は、空気ポンプ94を駆動することにより膨張袋16を急速昇圧させ、その膨張袋16により上腕内の動脈が止血される圧力まで圧迫する。続いて、CPU106は、排気制御弁92を駆動して膨張袋16の圧迫圧力をたとえば3mmHg/sec程度の速度で徐々に降圧させ、その徐速降圧過程において得られる脈波信号SMおよびカフ圧信号SKに基づいてオシロメトリック方式により血圧値を決定し、その血圧値を表示器116に表示させる。
【0032】
また、上記CPU106は、上記のようにして血圧値が決定されると、被測定者の上腕を解放するために、排気制御弁92により膨張袋16内の圧力を大気圧に解放すると同時に、巻き付け時とは反対方向に減速機付電動モータ46を逆転させる。これにより、腕帯12が機枠26内から上方へ送り出されることによってその腕帯12により構成された円筒の径Dが拡径させられる。
【0033】
図8および図9は、腕帯12が末梢側ほど細くなる腕に巻き付けられた場合の、機枠22および38の回動状態を示す図であって、図8は平面図、図9は図2のA−A線を含む平面で切断した断面図である。腕帯12が末梢側ほど細くなる腕に巻き付けられ場合には、腕帯12の両縁部に張力差が発生し、機枠22および38は、その張力差が解消する側へ垂直軸31の軸心まわりに回動させられて、腕帯12の巻き付け強さが腕帯12の幅方向において均一とされる。そして、腕帯12が前記末梢側ほど細くなる腕に巻き付けられた後に、ストッパ移動装置70によりストッパ62と回転止め板58、60とが係合させられることにより、回転止め板58、60が固設されている機枠22、38の回動が阻止される。
【0034】
上述のように構成された本実施例の腕帯巻付装置10においては、腕帯12が縮径させられるときに、垂直軸31、ラジアル軸受30を介して基台29に設けられ、腕帯12の基端部が固定されている機枠22、および垂直軸31、ラジアル軸受56を介して基台29に設けられた機枠38とその機枠38に支持され腕帯12の先端部が固定されている回転ドラム33が、腕帯12の幅寸法内に位置し且つ基台29に対して略垂直な垂直軸31の軸心まわりに回動させられて、腕帯12の巻付け強さが腕帯の幅方向において均一とされ、腕帯12の生体の一部への加圧時には、基台29に設けられた回動阻止装置(回転止め板58および60、ストッパ62、ストッパ移動装置70)により機枠22および38の垂直軸31の軸心まわりの回動が阻止されることにより、腕帯12の垂直軸31の軸心まわりの回動が阻止されるので、腕帯12の圧力変化過程での腕帯の巻き付け強さの変化が抑制される。
【0035】
また、本実施例の腕帯巻付装置10においては、回転止め板58、60の外周歯から離隔した解放位置に位置するストッパ62が、そのストッパ62に連結板68を介して連結されたストッパ移動装置70により、回転止め板58、60の外周歯と係合する係合位置まで移動させられることにより、回転止め板58、60と係合させられて、回転止め板58、60の垂直軸31の軸心まわりの回動が阻止される。すなわち、回転止め板58を固定している機枠22の垂直軸31の軸心まわりの回動、および回転止め板60を固定している機枠38の垂直軸31の軸心まわりの回動が阻止される。従って、腕帯12の垂直軸31の軸心まわりの回動が阻止されるので、腕帯12の圧力変化過程での腕帯の巻き付け強さの変化が抑制される。
【0036】
以上、本発明の一実施例を図面に基づいて説明したが、本発明はその他の態様においても適用される。
【0037】
たとえば、前述の実施例では、腕帯12の基端部を固定している機枠22はラジアル軸受30により回動可能とされ、腕帯12の先端部を固定している回転ドラム33およびその回転ドラム33を支持している機枠38はラジアル軸受56により回動可能とされていたが、どちらか一方のみが回動可能とされていても、腕帯12の巻付け強さを腕帯12の幅方向において均一とすることに対して一応の効果が得られるので、どちらか一方のみが回動可能とされてもよい。機枠22のみが回動させられる場合はラジアル軸受56および回転止め板60は不要となり、回転ドラム33およびその回転ドラム33のみが回動させられる場合はラジアル軸受30および回転止め板58は不要となる。
【0038】
また、前述の実施例では、垂直軸31が基台29に設けられている位置は、機枠22の底壁部28の略中央、且つ機枠38の底壁44の略中央部であったが、垂直方向において基台29と機枠22の底壁部28、または基台29と機枠38の底壁44が重なる位置であれば、その他の位置であってもよい。垂直方向において基台29と、機枠22の底壁部28または機枠38の底壁44が重なる位置にあれば、前記ラジアル軸受30、56等の回転支承装置により、機枠22または機枠38は基台29に対して回動可能となるので、腕帯12の巻付け強さを腕帯12の幅方向において均一とすることに対して一応の効果が得られるからである。
【0039】
また、前述の実施例では、ストッパ移動装置70は、連結板68を支柱66を支点として回動させることにより、連結板68に連結されているストッパ62を作動させていたが、ストッパ移動装置70にストッパ62が直列に連結されて、そのストッパ62が直線運動をするものであってもよい。
【0040】
また、前述の実施例では、垂直軸31方向の荷重、すなわちスラスト荷重は比較的小さいので、ラジアル軸受30および56によりその荷重を支持していたが、スラスト軸受が用いられてもよい。
【0041】
なお、上述したのはあくまでも本発明の一実施例であり、本発明はその主旨を逸脱しない範囲において種々変更が加えられ得るものである。
【図面の簡単な説明】
【図1】本発明の一実施例の腕帯巻付装置を説明する裏面図である。
【図2】図1の腕帯巻付装置の右側面図である。
【図3】図1の腕帯巻付装置の平面図である。
【図4】図1の腕帯の基端部の構成を説明するためにその腕帯の基端部の一部を切り欠いて示す図である。
【図5】図2のA−A線を含む水平面で腕帯巻付装置を切断した断面図である。
【図6】図5のC−C線を含む垂直平面でストッパ移動装置を切断した端面図である。
【図7】図1の実施例の腕帯巻付装置を含む自動血圧測定装置の電気的構成を説明するブロック線図である。
【図8】腕帯が末梢側ほど細くなる腕に巻き付けられた場合の、機枠の回動状態を示す平面図である。
【図9】腕帯が末梢側ほど細くなる腕に巻き付けられた場合の、機枠の回動状態を示す図であって、図2のA−A線を含む平面で切断した断面図である。
【符号の説明】
10:腕帯巻付装置
12:腕帯
22:機枠(基端部固定装置)
29:基台
30:ラジアル軸受
31:垂直軸
33:回転ドラム
38:機枠
56:ラジアル軸受
58:回転止め板(基端部側係合部材)
60:回転止め板(先端部側係合部材)
62:ストッパ(可動係合装置)
70:ストッパ移動装置(可動係合装置駆動装置)
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wristband wrapping device for blood pressure measurement for winding a flexible armband around a part of a living body by reducing the diameter of the flexible armband that is bent into a cylindrical shape when measuring blood pressure. It is about.
[0002]
[Prior art]
There is known an armband winding device for blood pressure measurement that can make the winding strength even in the widthwise direction of the armband even with the upper arm having a different thickness in the longitudinal direction. For example, the wristband winding device for blood pressure measurement described in Japanese Patent Application No. 9-130634 filed earlier by the present applicant. The armband winding device for blood pressure measurement has an armband base end fixing that supports a base end portion of a flexible armband that is bent in a cylindrical shape in a substantially tangential direction of the cylindrical shape of the flexible armband. An apparatus, a machine frame rotatably provided around a vertical axis located within the width dimension of the flexible armband, and a flexure provided on the machine frame and bent into the cylindrical shape An arm band driving device for reducing the diameter of the flexible arm band by moving the distal end portion of the sexual arm band on the outer peripheral side of the cylinder toward the substantially tangential direction, and the cylinder by the arm band driving device. When the flexible arm band is reduced in diameter by moving the distal end of the bent flexible arm band on the outer peripheral side of the cylinder toward the substantially tangential direction, If the thickness of the upper arm passed through the bent flexible armband is different in the longitudinal direction, there will be a difference in tension between the side edges of the armband. Thus, the machine frame provided with the armband driving device is rotated around the vertical axis located within the width of the armband to the side where the tension difference is eliminated, so that the thickness in the longitudinal direction is The armband wrapping strength is uniform in the width direction of the armband even with respect to the upper arms having different. Therefore, the reliability of the blood pressure measurement value is improved.
[0003]
[Problems to be Solved by the Invention]
However, in the conventional armband winding device for blood pressure measurement, after the armband is wound around the upper arm portion, pressure air is supplied to the expansion bag provided in the armband, and the upper arm is supplied by the expansion bag. When the pressure of the inflating bag is increased until the inner artery is stopped, the pressure air does not uniformly enter the inflating bag, and as a result, the wrapping strength of the armband is not uniform in the width direction. Thus, there are cases where an accurate blood pressure measurement value cannot be obtained in the blood pressure measurement device provided with the blood pressure measurement wristband wrapping device. Further, after the pressure in the inflatable bag is increased to a pressure at which the artery in the upper arm is hemostatic, the wrapping strength of the armband changes when the pressure in the inflatable bag is gradually decreased. In some cases, noise enters the pulse wave signal obtained in the step-down process.
[0004]
The present invention has been made against the background of the above circumstances, and the object of the present invention is to make the winding strength even in the width direction of the armband even for the upper arm having a different thickness in the longitudinal direction. In the blood pressure measuring armband winding device that can be used, it is to suppress a change in the winding strength of the armband in the process of changing the pressure of the armband.
[0005]
[Means for Solving the Problems]
The present inventor has conducted various studies against the background described above, and as a result, the wrapping strength of the armband during the pressure change process of the armband changes, that is, the expansion bag inside the armband. The reason why the pressurized air is not uniformly introduced in the process of supplying the pressurized air and the reason why the wrapping strength of the armband is changed in the process of reducing the pressure in the inflatable bag are due to the pressure of the inflatable bag. It has been found that the end of the armband rotates around the axis during the changing process. The present invention has been made based on such findings.
[0006]
That is, the gist of the present invention is that when measuring blood pressure, blood pressure measurement for winding the flexible armband around a part of a living body by reducing the diameter of the flexible armband that is bent in a cylindrical shape. An armband winding apparatus for a device, wherein the base and the end of the flexible armband are fixed, and the armband winding device is positioned within the width dimension of the flexible armband and substantially the same as the base. An end fixing device provided on the base so as to be rotatable around a vertical axis, and an end of the flexible armband, which is provided on the base and is applied to a part of the living body. And a rotation preventing device that prevents rotation of the portion fixing device around the axis.
[0007]
【The invention's effect】
In this way, when the flexible armband is reduced in diameter, the end fixing device provided on the base in a state where the end of the flexible armband is fixed is the flexible armband. Is rotated around an axis substantially perpendicular to the base and the winding strength of the flexible armband is made uniform in the width direction of the flexible armband, When the flexible armband is pressed onto a part of the living body, the rotation prevention device provided on the base prevents the rotation of the end fixing device around the axis so that the flexible arm Since the rotation of the belt around the axis is prevented, a change in the winding strength of the flexible armband in the process of changing the pressure of the flexible armband is suppressed.
[0008]
Other aspects of the invention
Here, preferably, the rotation preventing device is fixed to the end fixing device and has an end side engaging member having an outer peripheral tooth along an arc around the axis, and the end side engaging thereof. A movable engagement device that includes meshing teeth that mesh with the outer peripheral teeth of the member, and that is movable in the approach and separation direction with respect to the outer peripheral teeth of the end-side engagement member; And a movable engagement device driving device that positions the movable engagement device at an engagement position where the movable engagement device engages with the outer peripheral teeth of the end side engagement member and a release position spaced apart from the outer peripheral teeth. In this case, the movable engagement device located at the release position separated from the outer peripheral teeth of the end side engagement member is moved by the movable engagement device drive device operatively connected to the movable engagement device. The end-side engagement member is engaged with the end-side engagement member by being moved to an engagement position that engages with the outer peripheral teeth along the arc around the axis of the end-engagement member. Is prevented from rotating about the axis. That is, the rotation of the end fixing device that fixes the end side engaging member around the axis is prevented. Accordingly, since the rotation of the arm band around the axis is prevented, a change in the strength of the arm band in the process of changing the pressure of the arm band is suppressed.
[0009]
Preferably, the end fixing device includes a base end fixing device that fixes a base end located on a lower side of the cylindrical portion of the flexible armband that is bent into the cylindrical shape; A distal end fixing device for fixing the distal end portion of the armband, wherein the rotation blocking device is provided on the base, and when the flexible armband is pressurized to a part of the living body, the base The end fixing device and the tip fixing device are prevented from rotating around the axis. In this way, when the flexible armband is contracted, the base end fixing device provided on the base with the base end of the flexible armband fixed, and the flexibility thereof The distal end fixing device provided on the base with the distal end of the sexual armband fixed turns around the axis centered within the width of the flexible armband and substantially perpendicular to the base. The wrapping strength of the flexible armband is made uniform in the width direction of the flexible armband, and the flexible armband is provided on the base when pressing the part of the living body of the flexible armband. The rotation preventing device prevents the rotation of the proximal end fixing device and the distal end fixing device about the axis, thereby preventing the flexible arm belt from rotating about the axis. The change in the winding strength of the flexible armband in the process of changing the pressure of the flexible armband is suppressed.
[0010]
Preferably, the end portion side engaging member is fixed to the base end portion fixing device, and has a base end portion side engaging member having outer peripheral teeth along an arc around the axis, and the distal end portion A distal end side engaging member fixed to a fixing device and having outer peripheral teeth along an arc around the axis, the movable engaging device including a proximal end side engaging member and a distal end side engaging member The movable engagement device driving device includes engagement teeth that mesh with the outer peripheral teeth of the member, and is movable in an approaching and separating direction with respect to the outer peripheral teeth of the proximal end side engagement member and the distal end side engagement member. Is operatively connected to the movable engagement device, and engages the movable engagement device with the outer peripheral teeth of the proximal end side engagement member and the distal end side engagement member, and the outer periphery thereof. It is located in the release position separated from the teeth. In this case, the movable engagement device located at the release position separated from the outer peripheral teeth of the proximal end side engagement member and the distal end side engagement member is movable connected to the movable engagement device. When the engagement device driving device moves the base end side engagement member and the distal end side engagement member to the engagement position that engages with the outer peripheral teeth along the arc around the axis, the movable engagement The combined device is engaged with the proximal end side engaging member and the distal end side engaging member, and the rotation of the proximal end side engaging member and the distal end side engaging member around the axis is prevented. . That is, the rotation of the proximal end fixing device that fixes the proximal end side engaging member around the axis, and the rotation of the distal end fixing device that fixes the distal end side engaging member around the axis. Rotation is prevented. Therefore, since the rotation of the flexible arm belt around the axis is prevented, a change in the winding strength of the flexible arm belt during the pressure change process of the flexible arm belt is suppressed.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[0012]
1, 2 and 3 are views showing a wristband winding device 10 for blood pressure measurement accommodated in a box (outer case) of an automatic blood pressure measurement device (not shown), and FIG. 2 is a right side view, and FIG. 3 is a plan view. The armband 12 of the armband winding device 10 is bent in a cylindrical shape around an axis that is substantially horizontal, that is, substantially parallel to the base 29. A relatively large opening for enabling insertion into the band 12 is formed so as to be substantially concentric with the axial center of the arm band 12 that is turned into a cylindrical shape. In order to avoid a sense of incongruity in the posture at the time of blood pressure measurement, the armband 12 is usually set so that the cylindrical axis B of the armband 12 is inclined at a predetermined angle, for example, about 10 to 15 degrees with respect to the horizontal plane. Is attached to the box.
[0013]
The arm band 12 is for compressing an artery in the upper arm for blood pressure measurement. As shown in FIG. 4, a longitudinal inflatable bag 16 made of a bag-like resin bag or a rubber bag, polyester, and the like. Resin sheet, flexible belt 18 made of a relatively rigid resin that can be elastically deformed, such as a knitted belt coated with urethane or vinyl chloride, or a relatively rigid cloth, and a swelled plate. A longitudinal outer bag 20 made of a cloth or a soft resin sheet that accommodates the inflatable bag 16 and the flexible belt 18 with the bag 16 positioned on the inner peripheral side is provided. Thus, the cylindrical shape is spatially maintained by the relatively rigid flexible belt 18, and in the state where the flexible belt 18 is wound around the upper arm, the artery in the upper arm is compressed by the expansion of the expansion bag 16. At the same time, the arm band 12 can be handled like a single flexible band.
[0014]
1, 2, and 3, the machine frame 22 includes an upper wall portion 24 having a length in the longitudinal direction longer than a length in the width direction of the armband 12, and both ends of the upper wall portion 24 in the longitudinal direction. It consists of a pair of side wall portions 26 and 27 and a bottom wall portion 28 extending downward. The upper wall portion 24 of the machine frame 22 has a longitudinal shape that is sufficiently smaller than the minimum diameter of the armband 12 that is turned into a cylindrical shape. A flexible belt 18 in the base end located on the lower side is fixed by a rivet or a screw (not shown).
[0015]
A rotation stop plate 58, which will be described later, is fixed to the center of the lower surface of the bottom wall portion 28 of the machine frame 22, and the rotation stop plate 58 is fixed between the rotation stop plate 58 and the base 29. A fitting member 32 that is fixed to the center of the lower surface and that fits the radial bearing 30 and a radial bearing 30 that is fitted to the fitting member 32 are provided. In FIGS. 1 and 2, the fitting member 32 is omitted.
[0016]
As shown in FIG. 5, which is a cross-sectional view of the armband winding device 10 taken along a horizontal plane including the line AA in FIG. 2, the vertical shaft 31 is substantially the center portion of the fitting member 32, that is, A substantially central portion of the bottom wall portion 28 is fixed to the base 29 substantially perpendicularly to the base 29, and the radial bearing 30 is rotatable about the axis of the vertical shaft 31. It functions as a rotary support device for supporting the bottom wall portion 28. Accordingly, in this embodiment, the machine frame 22 can be rotated relative to the base 29 around the axis of the vertical shaft 31 by the intervention of the radial bearing 30. A machine frame 22 supported so as to be freely rotatable functions as a base end fixing device.
[0017]
As shown in FIG. 1, the distal end of the armband 12 is fixed to the outer peripheral surface of a cylindrical rotary drum 33 with a small screw 34. The rotating drum 33 passes through the center of the rotating drum 33 and is rotated by a rotating shaft 36 substantially parallel to the cylindrical axis B formed by the armband 12 through a pair of bearings (not shown). 40, 42.
[0018]
The machine frame 38 is located inside the machine frame 22, and the length of the cylindrical axis B direction of the armband 12 is shorter than the length of the machine frame 22 in the longitudinal direction, A bottom wall 44 whose length in the direction perpendicular to the axis B is slightly larger than the maximum diameter dimension of the armband 12 that is bent, and the bottom wall 44 in the axis B direction. It is comprised from the said side walls 40 and 42 which stand up from both ends.
[0019]
The speed reducer-equipped electric motor 46 is fixed to the side wall 40 of the machine casing 38 in a state of being located inside the machine casing 38. The output of the speed reducer-equipped electric motor 46 is transmitted to the rotary drum 33 via a pulley 50, a belt 52, and a pulley 54 fixed to the output shaft 48 of the speed reducer-equipped electric motor 46. It is designed to rotate. Further, an electromagnetic brake 55 is provided at the rear end of the motor 46 with a speed reducer for preventing rotation of the rotor in the motor 46 with the speed reducer. The electromagnetic brake 55 operates at the same time as the electric motor 46 with a speed reducer tightens the arm band 12 to stop its rotation, and suppresses loosening of the arm band 12.
[0020]
A rotation stop plate 60 to be described later is fixed at the center of the bottom surface of the bottom wall 44 of the machine frame 38, and a rotation stop plate is interposed between the rotation stop plate 60 and the bottom wall 28 of the machine frame 22. A fitting member 57 that is fixed to the center of the lower surface of 58 and fits the radial bearing 56, and a radial bearing 56 that is fitted to the fitting member 57 and has the same shape as the radial bearing 30 are provided. Similar to the fitting member 32, the fitting member 57 is omitted in FIGS.
[0021]
Since the radial bearing 56 functions as a rotation support device that supports the machine frame 38 so as to be rotatable about the axis of the vertical shaft 31, the bottom wall 44 of the machine frame 38 is supported by the intermediate bearing 56. It can rotate relative to the base 29 and the machine frame 22 around the axis of the vertical shaft 31. Therefore, in this embodiment, the machine frame 38 supported by the radial bearing 56 so as to be rotatable about the axis of the vertical shaft 31 and the rotary drum 33 supported by the machine frame 38 and fixing the distal end portion of the armband 12 are provided at the front end. It functions as a part fixing device.
[0022]
The rotation stop plate 58 fixed to the bottom wall portion 28 of the machine frame 22 functions as a base end side engaging member in the present embodiment. As shown in FIG. Has an arc shape with the axis of the vertical shaft 31 as a center, and includes outer peripheral teeth formed along the arc. Further, a rotation stop plate 60 having the same shape as the rotation stop plate 58 is fixed to the bottom wall 44 of the machine frame 38 so as to be concentric with the rotation stop plate 58 and parallel to the rotation stop plate 58. It is installed. The rotation stop plate 60 also includes outer peripheral teeth formed along an arc centered on the axis of the vertical shaft 31 and functions as a tip end side engaging member in this embodiment.
[0023]
The stopper 62 has a plate shape in which the length in the vertical direction is slightly longer than the distance between the rotation stop plate 58 and the rotation stop plate 60, and is positioned substantially perpendicular to the base 29, so that the rotation Engagement teeth 64 that mesh with the outer peripheral teeth of the rotation stop plates 58 and 60 are formed on the front end side facing the stop plates 58 and 60. The end of the stopper 62 opposite to the tip side is connected to the stopper 62 and the connecting plate by an adhesive or welding or the like with one end of a long connecting plate 68 fixed to the support column 66 at a substantially central portion. 68 are connected so as to be substantially vertical. In the right side view of the armband winding device 10 in FIG. 2, the support 66 is omitted.
[0024]
When the connecting plate 68 is rotated around the support column 66 by a stopper moving device 70 which will be described later, the stopper 62 moves toward and away from the rotation stop plates 58 and 60, and the meshing teeth 64 of the stopper 62 are moved to the rotation stop plate. By engaging the outer peripheral teeth of 58 and 60, the stopper 62 and the rotation stop plates 58 and 60 are engaged. Accordingly, in this embodiment, the stopper 62 that is movable in the approaching and separating direction with respect to the outer peripheral teeth of the rotation stop plates 58 and 60 by the connecting plate 68 functions as a movable engagement device.
[0025]
FIG. 6 is an end view of the stopper moving device 70 cut along a vertical plane including the line CC in FIG. 5 in order to explain the stopper moving device 70. The stopper moving device 70 is fixed to the side wall 74 of the base 29, and includes a solenoid coil 76, a solenoid bobbin 78 that houses the solenoid coil 76, a movable plunger 80, a magnetic circuit member 82 that houses the solenoid bobbin 78 and forms a magnetic circuit, A spring 84 is provided between the base end of the plunger 80 and the magnetic circuit member 82. When the solenoid coil 76 is energized, the movable plunger 80 is moved toward the contraction side of the spring 84 by the magnetic force generated in the solenoid coil 76, and when the solenoid coil 76 is not energized, the elastic force of the spring 84 increases the length of the spring 84. The movable plunger 80 is moved in the direction in which the height is restored.
[0026]
The tip of the movable plunger 80 is operatively connected to the end of the connecting plate 68 opposite to the side connected to the stopper 62 by a pin 86. That is, when the movable plunger 80 is moved to the side where the spring 84 is contracted, the connecting plate 68 is rotated with the support column 66 as a fulcrum, and the stopper 62 is in a release position separated from the rotation stop plates 58 and 60. However, the outer peripheral teeth 64 of the stopper 62 are moved to the engagement position where they engage with the outer peripheral teeth of the rotation stop plates 58 and 60. Therefore, in this embodiment, the stopper moving device 70 functions as a movable engagement device driving device. While the solenoid coil 76 is energized, the movable plunger 80 remains moved to the side where the spring 84 is contracted, so that the stopper 62 is prevented from moving while being engaged with the rotation stop plates 58 and 60. Is done.
[0027]
When the stopper 62 and the anti-rotation plates 58 and 60 are engaged by the stopper moving device 70, the rotation of the anti-rotation plates 58 and 60 is prevented and the machine frame on which the anti-rotation plates 58 and 60 are fixed. 22 and the rotation of the machine casing 38 around the vertical axis 31 are prevented. That is, in this embodiment, the rotation stop plates 58 and 60, the stopper 62 engaged with the rotation stop plates 58 and 60, and the stopper moving device 70 for preventing the movement of the stopper 62 are the machine frame 22 and the tip end fixing device ( It functions as a rotation blocking device for blocking the rotation of the machine frame 38 and the rotating drum 33) around the vertical axis 31.
[0028]
FIG. 7 is a block diagram illustrating a configuration of an automatic blood pressure measurement device including the armband winding device 10. In the figure, an expansion bag 16 in an armband 12, that is, a cuff, is connected to a pressure sensor 90, an exhaust control valve 92, and an air pump 94 via a pipe 96, and the expansion bag 16 is provided on the inner peripheral surface. The base end portion of the armband 12 that is bent in a cylindrical shape is fixed to the machine frame 22, and the distal end thereof is moved in the direction of diameter reduction and diameter expansion by a rotating drum 33 driven by an electric motor 46 with a speed reducer. It is like that. The output signal of the pressure sensor 90 is discriminated by a band-pass filter 98, and a pulse wave signal SM which is pressure vibration in the expansion bag 16 generated in synchronization with the pulse is supplied to the A / D converter 102 of the arithmetic control circuit 100. The Further, the output signal of the pressure sensor 90 is discriminated by the low-pass filter 104, and the cuff pressure signal SK representing the static pressure in the expansion bag 16 is supplied to the A / D converter 102 of the arithmetic control circuit 100.
[0029]
The arithmetic control circuit 100 is a microcomputer including a CPU 106, a ROM 108, a RAM 110, an input interface circuit 112, an output interface circuit 114, and the like. The CPU 106 processes the input signal according to the procedure stored in the ROM 108 in advance using the temporary storage function of the RAM 110 and outputs a drive signal, a display signal, and the like.
[0030]
In other words, when measuring blood pressure, the CPU 106 drives the rotary drum 33 by driving the electric motor 46 with a speed reducer according to a predetermined procedure, thereby reducing the diameter D of the cylinder formed by the armband 12. Then, the inflatable bag 16 disposed inside the armband 12 is applied to the upper arm portion of the living body with a predetermined tension, for example, a tension that allows two or three fingers to be inserted between the upper arm and the armband 12. The arm band 12 is reduced in diameter and wound around the upper arm by pulling the tip end side of 12 in the substantially tangential direction of the cylinder in the vicinity of the base end portion.
[0031]
Next, the CPU 106 drives the air pump 94 to rapidly pressurize the inflatable bag 16 and compresses the inflatable bag 16 to a pressure at which the artery in the upper arm is stopped. Subsequently, the CPU 106 drives the exhaust control valve 92 to gradually decrease the compression pressure of the expansion bag 16 at a speed of about 3 mmHg / sec, for example, and the pulse wave signal SM and the cuff pressure signal obtained in the slow-down process. The blood pressure value is determined by the oscillometric method based on the SK, and the blood pressure value is displayed on the display 116.
[0032]
When the blood pressure value is determined as described above, the CPU 106 releases the pressure in the inflatable bag 16 to the atmospheric pressure by the exhaust control valve 92 in order to release the upper arm of the person to be measured, and simultaneously wraps the blood pressure value. The electric motor 46 with a speed reducer is reversed in the opposite direction to the time. As a result, the arm band 12 is fed upward from the machine casing 26, whereby the diameter D of the cylinder formed by the arm band 12 is expanded.
[0033]
FIGS. 8 and 9 are views showing the rotation state of the machine casings 22 and 38 when the armband 12 is wound around an arm that becomes thinner toward the distal side, where FIG. 8 is a plan view and FIG. It is sectional drawing cut | disconnected by the plane containing 2 AA lines. When the armband 12 is wound around an arm that becomes thinner toward the distal side, a difference in tension is generated at both edges of the armband 12, and the machine frames 22 and 38 are moved to the side where the tension difference is eliminated. The arm band 12 is rotated around the axis so that the winding strength of the arm band 12 is uniform in the width direction of the arm band 12. Then, after the arm band 12 is wound around the arm that becomes thinner toward the distal side, the stopper 62 and the rotation stopper plates 58 and 60 are engaged by the stopper moving device 70, whereby the rotation stopper plates 58 and 60 are fixed. The machine casings 22 and 38 provided are prevented from rotating.
[0034]
In the armband winding device 10 of the present embodiment configured as described above, when the armband 12 is reduced in diameter, the armband is provided on the base 29 via the vertical shaft 31 and the radial bearing 30. 12, the machine frame 22 to which the base end portion 12 is fixed, the machine frame 38 provided on the base 29 via the vertical shaft 31 and the radial bearing 56, and the distal end portion of the armband 12 supported by the machine frame 38. The fixed rotating drum 33 is rotated around the axis of the vertical shaft 31 that is positioned within the width of the armband 12 and substantially perpendicular to the base 29, so that the winding strength of the armband 12 is increased. The armband 12 is uniform in the width direction of the armband, and when the armband 12 is pressed onto a part of the living body, the rotation prevention device (rotation stop plates 58 and 60, stopper 62, stopper movement) provided on the base 29 is provided. Device 70) is used to rotate around the axis of the vertical axis 31 of the machine frames 22 and 38. There by being blocked, since the axis rotation about a vertical axis 31 of the arm band 12 is prevented, the strength change of the winding of the cuff at a pressure changing process of the cuff 12 is suppressed.
[0035]
Further, in the arm band winding device 10 of the present embodiment, the stopper 62 located at the release position separated from the outer peripheral teeth of the rotation stop plates 58 and 60 is connected to the stopper 62 via the connecting plate 68. The moving device 70 is moved to an engagement position that engages with the outer peripheral teeth of the rotation stop plates 58 and 60, thereby being engaged with the rotation stop plates 58 and 60, and the vertical axis of the rotation stop plates 58 and 60. The rotation around the axis of 31 is prevented. That is, rotation around the axis of the vertical shaft 31 of the machine frame 22 fixing the rotation stopper plate 58 and rotation around the axis of the vertical shaft 31 of the machine frame 38 fixing the rotation stopper plate 60. Is blocked. Accordingly, since the rotation of the arm band 12 around the axis of the vertical axis 31 is prevented, a change in the strength of the arm band in the process of changing the pressure of the arm band 12 is suppressed.
[0036]
As mentioned above, although one Example of this invention was described based on drawing, this invention is applied also in another aspect.
[0037]
For example, in the above-described embodiment, the machine frame 22 that fixes the base end portion of the armband 12 is rotatable by the radial bearing 30, and the rotary drum 33 that fixes the tip end portion of the armband 12 and its Although the machine frame 38 supporting the rotating drum 33 can be rotated by the radial bearing 56, the winding strength of the arm band 12 can be determined even if only one of the machine frames 38 is rotatable. Since a temporary effect is obtained with respect to uniformity in the 12 width directions, only one of them may be rotatable. When only the machine frame 22 is rotated, the radial bearing 56 and the rotation stop plate 60 are unnecessary, and when only the rotary drum 33 and the rotation drum 33 are rotated, the radial bearing 30 and the rotation stop plate 58 are not required. Become.
[0038]
Further, in the above-described embodiment, the position where the vertical shaft 31 is provided on the base 29 is substantially the center of the bottom wall portion 28 of the machine frame 22 and the substantially center portion of the bottom wall 44 of the machine frame 38. However, as long as the base 29 and the bottom wall portion 28 of the machine frame 22 or the base 29 and the bottom wall 44 of the machine frame 38 overlap in the vertical direction, other positions may be used. If the base 29 and the bottom wall portion 28 of the machine frame 22 or the bottom wall 44 of the machine frame 38 overlap each other in the vertical direction, the machine frame 22 or the machine frame can be moved by the rotary bearing device such as the radial bearings 30 and 56. This is because 38 can be rotated with respect to the base 29, so that a temporary effect can be obtained for making the winding strength of the armband 12 uniform in the width direction of the armband 12.
[0039]
In the above-described embodiment, the stopper moving device 70 operates the stopper 62 connected to the connecting plate 68 by rotating the connecting plate 68 with the support column 66 as a fulcrum. The stopper 62 may be connected in series, and the stopper 62 may perform a linear motion.
[0040]
In the above-described embodiment, since the load in the vertical axis 31 direction, that is, the thrust load is relatively small, the load is supported by the radial bearings 30 and 56. However, a thrust bearing may be used.
[0041]
The above description is merely an example of the present invention, and the present invention can be variously modified without departing from the spirit of the present invention.
[Brief description of the drawings]
FIG. 1 is a back view for explaining an arm band winding device according to an embodiment of the present invention.
2 is a right side view of the wristband winding device of FIG. 1. FIG.
3 is a plan view of the wristband winding device of FIG. 1. FIG.
4 is a view in which a part of the base end portion of the armband is cut away in order to explain the configuration of the base end portion of the armband of FIG. 1. FIG.
5 is a cross-sectional view of the arm band winding device cut along a horizontal plane including the line AA in FIG. 2;
6 is an end view of the stopper moving device cut along a vertical plane including a line CC in FIG. 5;
7 is a block diagram illustrating an electrical configuration of an automatic blood pressure measurement device including the wristband winding device of the embodiment of FIG. 1. FIG.
FIG. 8 is a plan view showing a rotating state of the machine frame when the arm band is wound around an arm that becomes thinner toward the distal side.
9 is a view showing a state of rotation of the machine frame when the arm band is wound around an arm that becomes thinner toward the distal side, and is a cross-sectional view cut along a plane including line AA in FIG. .
[Explanation of symbols]
10: Armband winding device
12: Armband
22: Machine frame (base end fixing device)
29: Base
30: Radial bearing
31: Vertical axis
33: Rotating drum
38: Machine frame
56: Radial bearing
58: Rotation stop plate (base end side engaging member)
60: Rotation stop plate (front end side engaging member)
62: Stopper (movable engagement device)
70: Stopper moving device (movable engagement device driving device)

Claims (2)

血圧測定に際して、円筒状に回曲された可撓性腕帯を縮径させることにより該可撓性腕帯を生体の一部に巻き付けるための血圧測定用腕帯巻付装置であって、
基台と、
前記可撓性腕帯の端部を固定した状態で、前記可撓性腕帯の幅寸法内に位置し且つ前記基台に対して略垂直な軸心まわりに回動可能に前記基台に設けられた端部固定装置と、
前記基台に設けられ、前記可撓性腕帯の前記生体の一部への加圧時には、該端部固定装置の前記軸心まわりの回動を阻止する回動阻止装置と
を含むことを特徴とする血圧測定用腕帯巻付装置。
A blood pressure measurement armband wrapping device for winding a flexible armband around a part of a living body by reducing the diameter of the flexible armband that is bent into a cylindrical shape when measuring blood pressure,
The base,
In a state where the end of the flexible armband is fixed, the base can be rotated around an axis centered within the width dimension of the flexible armband and substantially perpendicular to the base. An end fixing device provided;
A rotation preventing device that is provided on the base and prevents rotation of the end fixing device around the axis when the flexible armband is pressed onto a part of the living body. An arm band winding device for blood pressure measurement.
前記回動阻止装置は、
前記端部固定装置に固定されて前記軸心回りの円弧に沿った外周歯を有する端部側係合部材と、
該端部側係合部材の外周歯と噛み合う噛合歯を備え、該端部側係合部材の外周歯に対して接近離隔方向に移動可能な可動係合装置と、
該可動係合装置に作動的に連結されて、該可動係合装置を前記端部側係合部材の外周歯と係合する係合位置と該外周歯から離隔した解放位置とに位置させる可動係合装置駆動装置と
を、含むものである請求項1の血圧測定用腕帯巻付装置。
The rotation blocking device is
An end-side engagement member fixed to the end-fixing device and having outer peripheral teeth along an arc around the axis;
A movable engagement device that includes meshing teeth that mesh with the outer peripheral teeth of the end side engagement member, and that is movable in the approaching and separating direction with respect to the outer peripheral teeth of the end side engagement member;
The movable engagement device is operatively connected to the movable engagement device to position the movable engagement device at an engagement position where the movable engagement device engages with the outer peripheral teeth of the end side engagement member and a release position spaced apart from the outer peripheral teeth. The blood pressure measurement wristband wrapping device according to claim 1, comprising an engagement device driving device.
JP23258398A 1998-08-19 1998-08-19 Arm band winding device for blood pressure measurement Expired - Lifetime JP3801360B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23258398A JP3801360B2 (en) 1998-08-19 1998-08-19 Arm band winding device for blood pressure measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23258398A JP3801360B2 (en) 1998-08-19 1998-08-19 Arm band winding device for blood pressure measurement

Publications (2)

Publication Number Publication Date
JP2000060808A JP2000060808A (en) 2000-02-29
JP3801360B2 true JP3801360B2 (en) 2006-07-26

Family

ID=16941638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23258398A Expired - Lifetime JP3801360B2 (en) 1998-08-19 1998-08-19 Arm band winding device for blood pressure measurement

Country Status (1)

Country Link
JP (1) JP3801360B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107374605A (en) * 2017-07-18 2017-11-24 深圳市贝优通新能源技术开发有限公司 A kind of device for remote medical treatment and its control system based on Internet of Things

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3826938B2 (en) 2004-02-18 2006-09-27 オムロンヘルスケア株式会社 Sphygmomanometer
US20180279889A1 (en) * 2015-10-08 2018-10-04 Charmcare Co., Ltd. Wrist-worn blood pressure monitor
US20240207130A1 (en) * 2021-03-24 2024-06-27 Pression Llc System and method for limb compression

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107374605A (en) * 2017-07-18 2017-11-24 深圳市贝优通新能源技术开发有限公司 A kind of device for remote medical treatment and its control system based on Internet of Things
CN107374605B (en) * 2017-07-18 2018-11-16 冯淑玲 A kind of device for remote medical treatment based on Internet of Things

Also Published As

Publication number Publication date
JP2000060808A (en) 2000-02-29

Similar Documents

Publication Publication Date Title
EP1566143B1 (en) Blood pressure monitor
CN101977547B (en) Blood pressure information measurement device
EP0696433B1 (en) Apparatus for winding cuff in blood pressure measurement
JP5640527B2 (en) Blood pressure measuring device
US6213953B1 (en) Blood pressure cuff
JP2007244837A (en) Blood pressure measuring device
JP5096176B2 (en) Automatic cuff wrapping device and blood pressure measuring device having the same
JP3801360B2 (en) Arm band winding device for blood pressure measurement
JP5494008B2 (en) Cuff for blood pressure information measuring device and blood pressure information measuring device provided with the same
JP2007151566A (en) Blood pressure measuring apparatus
JPH10314123A (en) Arm band winding instrument for measuring blood pressure
JP3590462B2 (en) Blood pressure measurement device
JP3496811B2 (en) Automatic cuff winding device for blood pressure measurement
JP3233481B2 (en) Cuff winding device for blood pressure measurement
JP3751113B2 (en) Arm band winding device for blood pressure measurement
JP5507913B2 (en) Electronic blood pressure monitor
JPH11342117A (en) Automatic sphygmomanometer
JP5112727B2 (en) Biological compression device
JPH10314125A (en) Blood pressure measuring arm band device
JP3575884B2 (en) Blood pressure measurement device
JP5424756B2 (en) Electronic blood pressure monitor
JPH07124128A (en) Automatic winding device for arm band for blood pressure measurement
JP5424757B2 (en) Electronic blood pressure monitor
JP3001683U (en) Automatic wrapping device for wristbands for blood pressure measurement
JP5424758B2 (en) Electronic blood pressure monitor

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20040119

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040225

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050530

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20050922

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20050926

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060407

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060418

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060425

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100512

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100512

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110512

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120512

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130512

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140512

Year of fee payment: 8

EXPY Cancellation because of completion of term