200803788 九、發明說明： 【發明所屬之技術領域】 本發明係有關血壓計測裝置（以下，亦簡稱爲血壓計）， 特別是有關具備將套圈（Cuff)對上臂自動地捲繞之自動套 圏捲繞機構的上臂式血壓計測裝置。 【先前技術】 通常血壓値之測定，是將具有用以壓迫位於生物體內部 的動脈之生物體壓迫用流體袋的套圈捲繞在生物體之體表 面，之後，藉由使生物體壓迫用流體袋膨脹、收縮以執行 產生於動脈內的動脈壓脈波之檢出，並由此執行測定血壓 値。在此所謂的套圈，係意味著具有內腔的帶狀構造物且 能捲繞在生物體之一部分者，係指藉由將氣體或液體等流 體注入內腔而利用於上下肢之動脈壓測定者。因此，套圈 係用以表示既包含有生物體壓迫用流體袋與用以將此生物 體壓迫用流體袋捲繞於生物體之捲繞構件的槪念語言。 在以往的上臂式血壓計中，因爲是將套圈捲繞在上臂的 作業託付受檢者等之手，所以每次測定在套圈之捲繞強度 上會產生偏差，結果所測定的血壓値亦產生偏差。爲此， 近年來，具備能自動地將套圈捲繞於上臂的自動套圏捲繞 機構的血壓計係漸漸普及。於搭載有此自動套圏捲繞機構 的血壓計中，係在血壓計之規定位置設有能將上臂自軸方 向插入的上臂插入部，受檢者藉由僅將上臂自軸方向插入 被形成於此上臂插入部的中空部之作業，套圈就成爲被捲 繞於上臂。於該血壓計，因爲一定的捲繞強度會再出現於 200803788 每次的測定，所以除了可實現穩定的測定精度以外，還可 獲得不需要煩雜的捲繞作業之優點。 有關這樣的自動套圏捲繞機構，係主要存在有3種機 構。第1種是利用旋轉鼓輪等來拉引內包有上臂壓迫用流 體袋並彎曲成大致圓筒狀的套圈之一端使套圈縮小直徑而 捲繞於上臂者，例如由特開2005 - 23743 2號公報（專利文 獻1)或特開2000 - 60808號公報（專利文獻2)、特開2004 -2 1 5 847號公報（專利文獻3)等所提示。第2種是於上臂壓迫 用流體袋之外側配置構成爲可彈性變形於直徑方向的彎曲 彈性板，同時在此彎曲彈性板之外周捲繞帶狀之構件，將 此帶狀之構件拉往切線方向，藉此使彎曲彈性板縮小直徑 而將上臂壓迫用流體袋按壓於上臂捲繞者，例如由特開平 10 - 3 14123號公報（專利文獻4)等所提示。第3種是，係在 上臂壓迫用流體袋之外側配置有構成爲可於直徑方向彈性 變形的彎曲彈性板，同時在此彎曲彈性板的更外側配置彎 曲彈性板壓迫用流體袋而使此彎曲彈性壓迫用流體袋膨 脹，藉此使彎曲彈性板縮小直徑以將上臂壓迫用流體袋按 壓於上臂捲繞者，例如提示於特開2005 - 230 1 75號公報（專 利文獻5)。 於上述專利文獻1至5所揭示的附自動套圈捲繞的機 構，皆是在套圈被捲繞於上臂之前的狀態（亦即，未利用自 動套圈捲繞機構捲繞套圏之狀態），設在上臂插入部的中空 部形狀爲圓柱狀，建構成套圏係依自動套圈捲繞機構之作 動而配合上臂之形狀而變形並無間隙地服貼於上臂。 200803788 〔專利文獻1〕日本專利特開2005 - 237432號公報 〔專利文獻2〕日本專利特開2000 - 60808號公報 〔專利文獻3〕日本專利特開2004 - 215847號公報 〔專利文獻4〕日本專利特開平1〇 -314123號公報 〔專利文獻5〕日本專利特開2005 · 23 0 1 7 5號公報 【發明內容】 發明欲解決的課題 然而在大部份情況，上臂之形狀係從中樞側愈朝向末梢 側漸漸變細的形狀，如上述，在使用中空部是建構成圓柱 狀的血壓計時，在藉自動套圈捲繞機構將套圈捲繞於上臂 之期間，中空部有必要依套圏的變形而從圓柱狀變化成圓 錐台狀，需增加額外完成捲繞所花費的時間。因此，難謂 可迅速測定血壓値之構成。 因而，本發明係爲解決上述之問題點而完成者，以提供 一種可迅速測定血壓値之血壓計測裝置爲目的。 解決課題的丰跺 根據本發明的血壓計測裝置，係具備上臂插入部，其包 含有供受檢者上臂自軸方向插入的中空部之套圈、及內周 面上配置有該套圈之筒狀部。上述套圈具有：上臂壓迫用 流體袋、彎曲彈性板及捲繞機構，該上臂壓迫用流體袋係 捲繞於受檢者上臂，該彎曲彈性板係位於該上臂壓迫用流 體袋之外側以能彈性變形於直徑方向般地大致構成爲圓筒 狀，該捲繞機構藉由縮小上述彎曲彈性板直徑而使上述上 臂壓迫用流體袋對受檢者上臂推壓捲繞。在基於本發明的 200803788 血壓計測裝置中，在上述上臂壓迫用流體袋被捲繞於受檢 者上臂之前的狀態，該中空部的入口側開口部之開口面積 係形成比該中空部的出口側開口部之開口面積還大。 在大部份的情況，上臂之形狀係自中樞側愈朝向末梢側 爲漸漸變細的形狀，所以藉由在中空部之入口部份加大開 口面積，而在中空部之出口部份作成比入口部份的開口面 積還小，藉此可大幅縮短套圈捲繞於上臂所花費之時間， 因而，成爲可迅速測定血壓値，而能作成便利性優越的血 壓計測裝置。 在基於上述本發明的血壓計測裝置，在上述上臂壓迫用 流體袋被捲繞於受檢者上臂之前的狀態，宜形成爲，從該 入口側開口部愈朝向該出口側開口部，上述中空部之開口 面積會變小。 如此，藉由事先將中空部作成圓錐台狀，可大幅縮短套 圈捲繞於上臂所花費之時間。因而，成爲能夠迅速測定血 壓値，可作成便利性優越的血壓計測裝置。又於捲繞之後， 因套圈可無間隙地服貼於上臂，故變成能遍及全周圍更加 均勻地對上臂壓迫，可謀求提升血壓値測定之精度。 在基於上述本發明之血壓計測裝置，係以從對應於該中 空部之該入口側開口部的位置，愈朝向對應於該中空部之 出口側開口部的位置，該筒狀部之內周面的開口面積會變 小般地形成傾斜者爲宜。 藉由如此構成，能容易地將中空部作成圓錐台狀。 在基於上述本發明的血壓計測裝置，上述捲繞機構宜含 200803788 有彎曲彈性板壓迫用流體袋，其位於該彎曲彈性板之外 側，且藉由膨脹而將上述彎曲彈性板的外周面朝向內側推 壓，使該彎曲彈性板縮小外徑以將該上臂壓迫用流體袋對 受檢者上臂推壓捲繞。 藉由如此構成，能以較簡單的構成來構成捲繞機構，同 時成爲可確實地實現藉由上臂壓迫用流體袋之捲繞機構來 對上臂捲繞。 又，在基於本發明的血壓計測裝置，該捲繞機構亦可含 有被捲繞於該彎曲彈性板之外側的線狀或帶狀構件，以及 藉由拉引該線狀或帶狀構件的至少一端，使該彎曲彈性板 縮小直徑而將該上臂壓迫用流體袋對受檢者上臂推壓捲繞 的拉引機構。 藉由如此構成，能以較簡單的構成來構成捲繞機構，同 時成爲可確實地實現藉由上臂壓迫用流體袋之捲繞機構來 對上臂進行捲繞。 【發明效果】 依據本發明，可作成能迅速測定血壓値的血壓計測裝置 ，能大幅提升血壓値測定之便利性。，i 【實施方式】 以下針對本發明之實施形態，茲參照圖面作詳細說明。 此外，以下所示之血壓計係具有自動套圈捲繞機構，藉由 此自動套圏捲繞機構來執行套圈對上臂的捲繞者。 實施形態1 第1圖及第2圖係用以說明本發明實施形態1的血壓計 -10- 200803788 外觀構造圖，第1圖係從右斜上方所見本實施形態的血壓 計之斜視圖，第2圖係從左斜上方所見的斜視圖。此外， 第1圖係血壓計非使用狀態斜視圖，第2圖係在能插入上 臂的位置使上臂插入部旋動於上下方向之狀態的斜視圖。 首先參照此等圖，針對本實施形態之血壓計外觀構造作說 明。 如第1圖及第2圖所示，本實施形態的血壓計1A主要具 備有載置於桌子等之載置面上的本體部2、及具有供受檢 者插入上臂的中空部5 a之上臂插入部5。本體部2係由本 體部殼3所覆蓋，在此本體部殼3之內部主要收容有後述 之各種空氣系組件20、30、CPU 40等（參照第5圖）。一方 面、上臂插入部5主要包含有作爲筒狀部之大致形成圓筒 狀的上臂插入部殻6，及配置在此上臂插入部殼6之內周 面上的套圈。 在本體部2之上面設有操作部4 A，其配置有用以切入電 源的電源按鈕、使測定動作開始所用之測定按鈕、以及執 行顯示部之操作的顯示部操作按鈕等之各種按鈕。又在本 體部2上面之其他位置，設有用以顯示測定結果或操作導 引等之顯示部4B。在與操作部4A及顯示部4B隣接的本體 部2上面之規定位置，設有在受檢者採取測定姿勢之際用 以載置手时用之时置部3 a。此时置部3 a，例如是藉由在本 體部殻3上面設置凹部來構成。. 上臂插入部5係藉由含轉動軸的轉動連結機構而對本體 部2連結成可於上下方向轉動自如。具體而言，本體部殼 -11- 200803788 3及上臂插入部殼6係藉由位在本體部2之受檢者側之靠近 前方端之本體部殼3內所配置的轉動軸，而於圖中箭頭A 方向轉動自如地連結著。 配置在上臂插入部殼6內周面上的套圈係由安裝在上臂 插入部殻6的套圏蓋7所覆蓋。又，在上臂插入部殼6外 周面之規定位置，設有受檢者用以轉動移動上臂插入部5 所把持的把手6a。在此把手6a之近旁，設有用以使收納在 本體部2上的上臂插入部殼6轉動移動所使用的開鎖按鈕 6b 0 第3圖及第4圖係表示於本實施形態中的血壓計之上臂 插入部內部構造的剖面圖，第3圖係沿著上臂插入部中空 部之軸線剖面圖，第4圖係沿著與上臂插入部中空部之軸 線正交方向之更詳細的剖面圖。其次參照此等圖來針對在 本實施形態中的血壓計之上臂插入部之內部構造加以說 明。 如第3圖及第4圖所示，上臂插入部5主要具備有如下 構成來構成套圈，該構成爲藉由捲繞在上臂以壓迫上臂所 構成之屬上臂壓迫用流體袋的上臂壓迫用空氣袋13、和位 於上臂壓迫用空氣袋1 3之外側且能彈性變形於直徑方向 般地大致爲圓筒狀之屬彎曲彈性板的軸環1 0、以及屬彎曲 彈性板壓迫用流體袋之軸環壓迫用空氣袋 8，其位於軸環 1 0之外側而藉由膨脹將軸環1 0之外周面朝向內側推壓使 軸環10縮小直徑，同時透過此軸環10將上臂壓迫用空氣 袋13對屬生物體之一部份的上臂推壓捲繞。而其中的軸環 -12- 200803788 壓迫用空氣袋8’係構成作爲捲繞機構的自動套圈捲繞機 構之一部份。 軸環壓迫用空氣袋8，係配置於成爲位在上臂插入部5 最外側的上臂插入部殻6之內側。軸環壓迫用空氣袋8， 具備有接觸於上臂插入部殼6之內周面的外周片8a，以及 位於外周片8a之內側的內周片8b，並藉由將外周片8a及 內周片8b接着或縫合而在此等之間形成內腔8c。此軸環壓 迫用空氣袋8之內腔8c，係依後述的軸環壓迫用空氣系組 件30(參照第5圖）之作用而脹縮自如地變動體積。此外， 於本實施形態的血壓計丨A，此軸環壓迫用空氣袋8之內腔 8c係在圓周方向被均勻地區劃、分割成6個空間，而此等 空間係互相連通著，可藉由一空氣系組件而膨脹或收縮。 在軸環壓迫用空氣袋8之內側，遍及全周配置有屬低摩 擦構件的布料9。此布料9係用以減低軸環1 〇與軸環壓迫 用空氣袋8的滑動摩擦之構件。 於布料9之內側，存在著由大致捲繞成圓筒狀之板狀構 件所構成的軸環1 〇。軸環1 〇例如是由聚丙烯樹脂等之樹脂 材料所形成，而在周圓方向的規定位置具有延伸於軸方向 的裂縫。藉此裂縫，軸環1 〇係依被施加的外力而在直徑方 向伸縮自如地彈性變形。亦即，雖然軸環1 0會因外力的作 用而變形於直徑方向，但會在外力之作用消失時復原成原 來之狀態。此外，在軸環10周圓方向的兩端，於未有外力 作用之狀態時形成爲其一部份能重複。藉此，建構成在收 縮時由於會碰到軸環1 0之兩端而不阻礙其收縮。 -13- 200803788 軸環1 〇的大部份，係由形成袋狀之屬低摩擦構件的布袋 1 1所覆蓋。此布袋1 1與上述之布料9同樣，係用以減低軸 環10與軸環壓迫用空氣袋8的滑動摩擦之構件。 於軸環10之內側，存在著含有上臂壓迫用空氣袋13的 上臂壓迫單元12。上臂壓迫單元12係由位於最內側之上臂 壓迫用空氣袋1 3、及位於上臂壓迫用空氣袋1 3之外側用以 維持剛性小的上臂壓迫用空氣袋1 3之屬形狀維持構件的 較具剛性的樹脂板1 4、以及位於該樹脂板1 4之外側並接觸 於樹脂板1 4內周面側的屬低摩擦構件的布料1 5所構成。 上臂壓迫用空氣袋13,具有接觸於樹脂板14之內周面的 外周片1 3 a，以及位於外周片1 3 a之內側並接觸於覆蓋上臂 插入部5內周面的套圏蓋7之內周片13b，，而在外周片 13a及內周片13b之間有內腔13c。此上臂壓迫用空氣袋13 之內腔13c，係依後述之上臂壓迫用空氣系組件20(參照第 5圖）的作用而脹縮自如地變動體積。 樹脂板1 4係用以將剛性較小的上臂壓迫用空氣袋1 3之 形狀維持成大致圓筒狀的形狀維持構件。又布料丨5係用以 減低軸環1 0與上臂壓迫用空氣袋1 3的滑動摩擦之構件。 在本實施形態的血壓計1 A，於使上臂壓迫用空氣袋！ 3 捲繞在受檢者上臂之前的狀態，上臂插入部5之中空部5 a 係形成爲在入口側大且在出口側小。亦即如第3圖所示， 建構成入口側開口部5 a 1之內徑D 1比出口側開口部5 a2之 內徑D 2還大，依此，形成爲入口側開口部5 a 1之開口面積 比出口側開口部5 a2之開口面積大。 -14- 200803788 更詳言之，上臂插入部殻6之內周面，係以從對應於中 空部5 a之入口側開口部5 a 1位置，愈朝向對應於中空部5 a 之出口側開口部5 a 2位置，其開口面積漸漸地變小的方式 來傾斜設置，伴隨地，配置在上臂插入部殼6內周面的套 圈，亦建構成含有中空部5a的圓錐台狀之形狀，其結果， 中空部5 a係建構成在上臂壓迫用空氣袋1 3捲繞於受檢者 上臂之前的狀態（亦即非使用狀態），從入口側開口部5al 愈朝向出口側開口部5 a 2 ’其開口面積係伴隨地漸漸變小。 第5圖係表示於本實施形態的血壓機之機能方塊圖。如 第5圖所示，上述的上臂壓迫用空氣袋丨3及軸環壓迫用空 氣袋8，係分別連接在上臂壓迫用空氣系組件20及軸環壓 迫用空氣系組件30。又上臂壓迫用空氣系組件20及軸環壓 迫用空氣系組件30，係分別藉由CPU 40控制其動作。 上臂壓迫用空氣系組件20，係含有空氣泵21、及氣閥 22、以及壓力感知器23。空氣泵21係用來加壓上臂壓迫用 空氣袋13內腔13c之裝置，係由接收來自CPU 40的指令 之空氣泵驅動電路26所驅動，在測定時將壓縮氣體送進內 腔13c使上臂壓迫用空氣袋13內腔13c之壓力成爲規定之 壓力。氣閥22係用來維持上臂壓迫用空氣袋13內腔13c 之壓力，或加以減壓之裝置，係藉由接收來自CPU 40之指 令的氣閥驅動電路27來控制其開閉狀態，於測定時對藉空 氣泵21成爲高壓狀態之上臂壓迫用空氣袋13內腔13c之 壓力進行維持及減壓，同時於測定終了後使上臂壓迫用空 氣袋1 3內腔1 3 c恢復成大氣壓。壓力感知器2 3係用以檢 -15- 200803788 出上臂壓迫用空氣袋13內腔13c之壓力的裝置，於測定 時，檢出時時刻刻變化的上臂壓迫用空氣袋1 3內腔1 3c之 壓力，將因應於其檢出値的信號對放大器28輸出。放大器 28係放大從壓力感知器23所輸出的信號，並輸出於A/D 轉換器29。A/D轉換器29將從放大器28所輸出的類比信 號數位化並輸出於CPU 40。 軸環壓迫用空氣系組件30，係含有空氣泵31、及氣閥 32、以及壓力感知器33。空氣泵31係用以加壓軸環壓迫用 空氣袋8內腔8c之裝置，係由接收來自CPU 40之指令的 空氣泵驅動電路3 6所驅動，於測定開始時將壓縮氣體送入 內腔8c使軸環壓迫用空氣袋8內腔8c之壓力成爲規定壓 力。氣閥32係用以執行軸環壓迫用空氣袋8內腔8c之壓 力維持及減壓的裝置，藉由接收來自CPU 40之指令的氣閥 驅動電路37來控制其開閉狀態，於測定時對藉空氣泵3 1 變成高壓狀態之軸環壓迫用空氣袋8內腔8c的壓力進行維 持，同時在測定終了後將軸環壓迫用空氣袋8內腔8 c恢復 爲大氣壓。壓力感知器33係用來檢出軸環壓迫用空氣袋8 內腔8c之壓力的裝置，於測定開始時，檢出軸環壓迫用空 氣袋8內腔8c之壓力，將因應其檢出値的信號對放大器38 輸出。放大器3 8係放大從壓力感知器3 3所輸出的信號並 輸出於A/D轉換器39。A/D轉換器39將自放大器38輸出 的類比信號數位化並輸出於CPU 40。 CPU 40，係依據被輸入到設在血壓計本體部殼3的操作 部.4A之指令，執行上臂壓迫用空氣系組件20及軸環壓迫 -16 - 200803788 用空氣系組件30之控制，同時將測定結果輸出於顯示部4B 或記憶部41。又CPU 40，係依擄從A/D轉換器29輸入的 數位信號，算出含有擴張期血壓値及收縮期血壓値之血壓 値。此外，記憶部4 1係用來記憶測定結果之部位。 第6圖係表示本實施形態中的血壓計之套圈的安裝次序 模式圖，係顯示要將手臂插入上臂插入部之中空部的狀況 圖。又第7圖表示安裝後的測定姿勢之模式圖。此外，於 此等圖，係假設以左手臂測定血壓値之情況。 如第6圖所示，在使用本實施形態的血壓計1 A來測定血 壓値時，於具有水平的載置面之桌子110上載置血壓計1A 的本體部2，受檢'者200坐在椅子120。然後，按下開鎖按 鈕6b使上臂插入部5移動於圖中箭頭A1方向，再用右手 把持設在血壓計1A的上臂插入部殼6的把手6a，一邊調 整上臂插入部5之傾角，一邊將左手插入上臂插入部5之 中空部5a。藉由將左手朝向中空部5a內之深處再插入’前 臂210通過而插入左手臂使設在上臂插入部5內的套圈來 到面向上臂220的位置。然後’藉由輕輕彎曲既插入中空 部5a之左手臂之手肘’並將手肘載放在設於本體部2上面 的时置部3 a ’而成爲如第7圖所不之測疋姿勢。此外’在 此時，上臂插入部5就追隨左手臂之動作而旋動於圖中箭 頭A2方向，最終乃形成停應左手臂之上臂220的傾角之角 度位置。 第8圖係表示於本實施形態中的血壓計之測定動作流程 圖。如第8圖所示，於本實施形態的血壓計1 A ’係藉由受 -17- 200803788 檢者等按下設在本體部殼3之操作部4A的測定按鈕，而轉 換爲測定動作。 首先在步驟1，進行血壓計1 A之初期化。其次於步驟2 , 進行軸環壓迫用空氣袋8之加壓，在軸環壓迫用空氣袋8 的內腔8 c之壓力到達規定壓力的時間點，結束軸環壓迫用 空氣袋8之加壓（步驟3)。其次於步驟4，進行上臂壓迫用 空氣袋13之加壓，在上臂壓迫用空氣袋13的内腔丨3c之 壓力到達規定壓力的時間點，結束上臂壓迫用空氣袋1 3之 加壓’於步驟5’ 一邊進行將上臂壓迫用空氣袋13減壓一 邊執行檢出動脈壓脈波，之後，在步驟6，以CPU 4〇依據 上述動脈壓脈波之檢出資料進行算出血壓値，在步驟7， 於設在本體部殼3的顯示部4B進行顯示血壓値，同時在步 驟8，進行將軸環壓迫用空氣袋8的內腔8c及上臂壓迫用 空氣袋13的內腔13c開放於大氣壓。 第9圖表示於本實施形態的血壓計中，上臂既插入中空 部的狀態之模式剖面圖。又第1 0圖表示於本實施例形態的 血壓計中，將套圈捲繞於上臂的狀態之模式剖面圖。以下 茲參照此等圖，針對本實施形態中的血壓計之自動套圈捲 繞機構之動作及套圈捲繞後之套圈與上臂之相關關係進行 說明。 如同上述，於本實施形態中的血壓計1 A，係建構成中空 部5 a的入口側開口部5 a 1之內徑D 1比中空部5 a的出口側 開口部5a2之內徑D2還大，依此，入口側開口部5al之開 口面積係形成爲較出口側開口部5 a2之開口面積大。於此’ -18- 200803788 在大多數之情況，上臂220之形狀係自中樞側愈朝向末梢 側爲漸漸變細的形狀，所以如第9圖示，可順利地進行將 上臂220插入中空部5a。 於第9圖所示之狀態，在自動套圈捲繞機構一動作時， 藉由軸環壓迫用空氣系組件30使軸環壓迫用空氣袋8膨 脹。軸環壓迫用空氣袋8係由上臂插入部殼6來拘束其外 周片8a，所以朝向直徑方向外側不能膨脹，其結果僅朝向 直徑方向內側膨脹。並藉由此軸環壓迫用空氣袋8的膨脹 而利用軸環壓迫用空氣袋8之內周片8b將軸環10之外周 面朝向內側推壓，所以軸環1 〇之直徑係縮小於其直徑減的 方向。然後伴隨軸環10縮小直徑，上臂壓迫用空氣袋13 係成爲依軸環1 0而對受檢者上臂推壓捲繞。其後，由於上 臂壓迫用空氣袋13會依上臂壓迫用空氣系組件20而膨 賬，而轉換成如第1 〇圖所示之測定狀態。 在此，於本實施形態的血壓計1 A中，由於是將中空部 5 a建構成於非使用狀態時從入口側開口部5 a 1愈朝向出口 側開口部5 a2，形成其開口面積會漸漸地變小的圓錐台狀， 所以於插入上臂220之後（亦即於第9圖所示狀態），上臂 220與套圏間之距離在上臂220之全周圍係大致成爲相 同，成爲在被配置於套圏內部的軸環壓迫用空氣袋8膨脹 之際能短時間使套圈服貼於上臂220。 又，在那時，若軸環壓迫用空氣袋8遍及全域均勻地膨 脹，則套圈之內周面乃遍及全區域大致同時地接觸上臂220 之整個周圍，所以不會在套圈蓋7或上臂壓迫用空氣袋13 -19- 200803788 上產生折曲或扭歪、皴紋等。因此，在其後所進行的上臂 壓迫用空氣袋1 3膨脹之際’不會產生起因於發生皺紋等而 引起之測定精度降低，而成爲能高精度測定血壓値。 再者如第10圖所示，若是在套圈捲繞後會膨脹的上臂壓 迫用空氣袋1 3可遍及全區域均勻地膨脹，則變成能將上臂 遍及整個周圍均勻地壓迫，而能謀求提升血壓値測定之精 度。 / 如以上所說明，藉由作成如本實施形態之構成，可作成 能迅速且高精度地進行血壓値之測定的血壓計，而能大幅 提升測定血壓値之便利性。 此外，在構成套圏的各要素當中，軸環壓迫用空氣袋8 或上臂壓迫用空氣袋13及各種布等係柔軟者，而相對地， 軸環1 0係比此等具有較大的剛性。因此，用以決定套圈中 空部5a形狀的主要因素在於此軸環10，藉由將軸環1〇形 狀預先作成具有延伸於軸方向的中空部之圓錐台狀，可較 容易地構成上述形狀之中空部5a。然而，如上述將上臂插 入部殼6之內周面作成傾斜形狀時，不一定需要將軸環i 〇 作成具有延伸於軸方向之中空部的圓錐台狀，藉由將軸環 1 0作成圓筒狀，並將其以在上臂插入部殼6內部縮小直徑 的狀態插入而沿著上臂插入部殻6之內周面，則能更容易 地構成上述形狀之中空部5 a。 實施形態2 第1 1圖係表示於本發明實施形態2中的血壓計之上臂插 入部之內部構造的剖面圖，爲沿著上臂插入部的中空部之 20- 200803788 軸線的剖面圖。又，第1 2圖係用以說明於本實施形態中的 血壓計之自動套圏捲繞機構之構成圖。此外，針對與上述 實施形態1的血壓計1 A同樣的部分賦予圖中相同符號’而 其說明於此不再重覆。 如第1 1圖所示，本實施形態的血壓計1B與上述實施形 態1的血壓計1 A在自動套圈捲繞機之構成上有所不同。於 本實施形態的血壓計1 B中，係取代上述實施形態1中的軸 環壓迫用空氣袋8及軸環壓迫用空氣系組件30，而改以捲 繞在軸環1 0外側之作爲帶狀構件之帶1 6、和連接在此帶 1 6之一端的旋轉鼓輪1 7以及旋轉驅動此旋轉鼓輪1 7用的 電動馬達1 8來構成自動套圈捲繞機構。在此、旋轉鼓輪1 7 及旋轉驅動此旋轉鼓輪1 7的電動馬達1 8係相當於拉引裝 置° 帶16係在軸環10軸方向的兩端部近旁之外周面成對捲 繞。各個帶1 6之一端被固定於旋轉鼓輪1 7，而他端係固定 於被設在套圈內部之規定位置的支持銷1 9。在此，支持銷 1 9係將帶1 6之他端固定成不能移動。旋轉鼓輪1 7係透過 確動皮帶而連接於電動馬達18之旋轉軸18a，藉由電動馬 達1 8來旋轉驅動。此外，旋轉鼓輪1 7及電動馬達1 8最好 是與一對的帶1 6各自對應設置一對。 當自動套圈捲繞機構一作動時，帶1 6就被旋轉鼓輪1 7 捲繞，軸環1 0係在其直徑會縮減的方向縮小直徑。然後伴 隨軸環10直徑之縮小，形成上臂壓迫用空氣袋13藉由軸 環10而對受檢者上臂推壓捲繞。其後，藉由上臂壓迫用空 -21- 200803788 氣系組件20使上臂壓迫用空氣袋丨3膨脹而轉換爲測定狀 態。此外’亦能作成使用線狀之線等來取代帶1 6。 在採用如此的自動套圈捲繞機構時，亦藉由建構成中空 部5 a入口側開口部5 a 1之內徑d 1比中空部5 a出口側開口 部5 a2之內徑D2還大，而成爲能獲得與上述實施形態1既 說明的效果同樣之效果。亦即，可作成可迅速且高精度地 執行血壓値之測定的血壓計，而可大幅提升血壓値測定之 便利性。 於上述本發明之實施形態丨及2中，係例示了作爲上臂 壓迫用流體袋或彎曲彈性板壓迫用流體袋是採用內部注入 有加壓空氣的空氣袋時所作的說明，但並未特別限定爲空 氣袋者’當然亦能以注入有其他氣體的氣體袋或注入有液 體的液體袋來構成上臂壓迫用流體袋及彎曲彈性板壓迫用 流體袋。 如此，此次所提示的各實施形態所有的要點僅爲例示， 並非有所限制者。本發明之技術範圍係依申請專利範圍所 劃定、且包含有與申請專利範圍之記載均等之意義及在範 圍內的所有變更者。 【圖式簡單說明】 第1圖表示從右斜上方所見之於本發明之實施形態1中 的血壓計外觀構造之斜視圖。 第2圖表示從左斜上方所見之於本發明之實施形態1中 的血壓計外觀構造之斜視圖。 第3圖表示於本發明之實施形態1血壓計之上臂插入部 -22- 200803788 內部構造圖，是沿著上臂插入部之中空部軸線的剖面圖。 第4圖表示於本發明之實施形態1血壓計之上臂插入部 內部構造圖，是沿著與上臂插入部之中空部軸線正交方向 剖面圖。 第5圖表示於本發明之實施形態1中的血壓機之機能方 塊圖。 第6圖表示於本發明之實施形態1血壓計中之套圈安裝 次序的模式圖，係表示將手臂插入上臂插入部的中空部之 情況圖。 第7圖表示於本發明之實施形態1在安裝血壓計後之測 定姿勢模式圖。 第8圖表示於本發明之實施形態1中之血壓計測定動作 之流程圖。 第9圖表示於本發明之實施形態1的血壓計，將手臂插 入中空部之狀態的模式剖面圖。 第1 0圖表示於本發明之實施形態丨的血壓計，將套圏捲 繞於上臂之狀態的模式剖面圖。 第1 1圖表示於本發明之實施形態2中的血壓計之上臂插 入部的內部構造圖，係沿著上臂插入部之中空部的軸線之 剖面圖。 第1 2圖用以說明於本發明之實施形態2中的血壓計之自 動套圈捲繞機構之構成圖。 【主要元件符號說明】 1 A、1 B 血壓計 -23- 200803788 2 本體部 3 本體部殼 4A 操作部 4B 顯示部 5 上臂插入部 5 a 中空部 5al 入口側開口部 5a2 出口側開口部 6 上臂插入部殻 6 a 把手 6b 開鎖按鈕 7 套圈蓋 8 軸環壓迫用空氣袋 8a' 13a 外周片 8b 、 13b 內周片 8c 、 13c 內腔 9、15 布料 10 軸環 11 布袋 12 上臂壓迫單元 13 上臂壓迫用空氣袋 14 樹脂板 16 帶 17 旋轉鼓輪 -24- 200803788 18 電 動 馬 達 18a 旋 轉 軸 19 支 持 銷 20 上 臂 壓 迫 用 空 系 組 件 21、 3 1 空 氣 泵 12、 32 氣 閥 23、 33 壓 力 感 知 器 26、 36 空 氣 泵 驅 動 電 路 27、 37 氣 閥 驅 動 電 路 28、 38 放 大 器 29、 39 A/D 變 換 器 30 軸 res. 壓 迫 用 空 术Vi 系 組 件 40 CPU 41 記 憶 部 110 桌 子 120 椅 子 200 受 檢 者 210 刖 臂 220 上 臂 -25-200803788 IX. Description of the Invention: [Technical Field] The present invention relates to a blood pressure measuring device (hereinafter, also simply referred to as a sphygmomanometer), and more particularly to an automatic ferrule having an automatic winding of a ferrule (Cuff) to an upper arm Upper arm type blood pressure measuring device of the winding mechanism. [Prior Art] In general, blood pressure is measured by winding a ferrule having a fluid bag for compressing an artery located in an artery inside a body on the surface of a living body, and then, by pressing the living body The fluid bag expands and contracts to perform detection of an arterial pressure pulse generated in the artery, and thereby performing blood pressure measurement. The so-called ferrule as used herein means a belt-like structure having a lumen and can be wound around a part of a living body, which means an arterial pressure applied to the upper and lower limbs by injecting a fluid such as a gas or a liquid into the lumen. Measurer. Therefore, the ferrule is used to indicate a mourning language including both a fluid bag for biological compression and a winding member for winding the fluid bag for compression of the living body with a biological body. In the conventional upper-arm type sphygmomanometer, since the operation of winding the ferrule around the upper arm is carried by the subject or the like, the measurement of the winding strength of the ferrule varies, and the measured blood pressure 値There is also a bias. For this reason, in recent years, a sphygmomanometer having an automatic ferrule winding mechanism capable of automatically winding a ferrule around an upper arm has become widespread. In the sphygmomanometer in which the automatic ferrule winding mechanism is mounted, an upper arm insertion portion that can insert the upper arm from the axial direction is provided at a predetermined position of the sphygmomanometer, and the subject is formed by inserting only the upper arm from the axial direction. In the operation of the hollow portion of the upper arm insertion portion, the ferrule is wound around the upper arm. In this sphygmomanometer, since a certain winding strength reappears in each measurement of 200803788, in addition to achieving stable measurement accuracy, it is possible to obtain an advantage of a troublesome winding operation. Regarding such an automatic ferrule winding mechanism, there are mainly three types of mechanisms. In the first type, a rotary drum or the like is used to pull one end of a ferrule in which an upper arm compression fluid bag is wrapped and bent into a substantially cylindrical shape, and the ferrule is reduced in diameter and wound around the upper arm, for example, by the special opening 2005 - Japanese Laid-Open Patent Publication No. JP-A No. 2000-60808 (Patent Document No. 2) and JP-A-2004-A No. 5-847 (Patent Document 3). In the second type, a curved elastic plate which is elastically deformable in the radial direction is disposed outside the upper arm compression fluid bag, and a band-shaped member is wound around the curved elastic plate, and the band-shaped member is pulled to the tangent. In the direction, the curved elastic plate is reduced in diameter, and the upper arm pressing fluid bag is pressed against the upper arm winder, and is disclosed, for example, in Japanese Laid-Open Patent Publication No. Hei No. Hei. In the third aspect, a curved elastic plate that is elastically deformable in the radial direction is disposed on the outer side of the upper arm compression fluid bag, and the curved elastic plate compression fluid bag is disposed on the outer side of the curved elastic plate to bend the elastic plate. The elastic pressure fluid bag is inflated, and the curved elastic plate is reduced in diameter to press the upper arm compression fluid bag against the upper arm winder. For example, JP-A-2005-230 175 (Patent Document 5) is proposed. The mechanism for winding the automatic ferrule disclosed in the above Patent Documents 1 to 5 is in a state before the ferrule is wound around the upper arm (that is, a state in which the ferrule is not wound by the automatic ferrule winding mechanism) The hollow portion provided in the upper arm insertion portion has a cylindrical shape, and the ferrule is formed to be attached to the upper arm by the shape of the upper arm in accordance with the action of the automatic ferrule winding mechanism. Japanese Patent Laid-Open No. 2000-60808 (Patent Document 3) Japanese Patent Laid-Open No. 2004-215847 (Patent Document 4) Japanese Patent Japanese Laid-Open Patent Publication No. Hei-2005 No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. The shape which gradually becomes thinner toward the distal side, as described above, is a blood pressure chronograph which is formed into a cylindrical shape by using the hollow portion, and the hollow portion is required to be wrapped during the winding of the ferrule by the automatic ferrule winding mechanism. The deformation changes from a cylindrical shape to a truncated cone shape, and it takes an extra time to complete the winding. Therefore, it is difficult to quickly determine the composition of blood pressure. Accordingly, the present invention has been made in order to solve the above problems, and an object of the present invention is to provide a blood pressure measuring device capable of rapidly measuring blood pressure. According to the blood pressure measurement device of the present invention, the blood pressure measurement device includes an upper arm insertion portion including a ferrule for inserting a hollow portion of the subject's upper arm from the axial direction, and a tube having the ferrule disposed on the inner circumferential surface thereof. Shape. The ferrule includes: an upper arm pressing fluid bag, a curved elastic plate, and a winding mechanism, wherein the upper arm pressing fluid bag is wound around an upper arm of the subject, and the curved elastic plate is located outside the upper arm pressing fluid bag to enable The elastic deformation is substantially cylindrical in the shape of a diameter, and the winding mechanism presses the upper arm compression fluid bag against the upper arm of the subject by reducing the diameter of the curved elastic plate. In the 203803788 sphygmomanometer according to the present invention, in a state before the upper arm compression fluid bladder is wound around the upper arm of the subject, the opening area of the inlet-side opening of the hollow portion is formed to be larger than the outlet side of the hollow portion. The opening area of the opening is also large. In most cases, the shape of the upper arm is gradually tapered from the center side toward the distal side, so that the opening area is increased at the entrance portion of the hollow portion, and the ratio is made at the outlet portion of the hollow portion. Since the opening area of the inlet portion is small, the time taken for the ferrule to be wound around the upper arm can be greatly shortened, so that the blood pressure measurement can be quickly measured, and the blood pressure measurement device which is excellent in convenience can be obtained. In the sphygmomanometer according to the present invention, in a state before the upper arm compression fluid bag is wound around the upper arm of the subject, it is preferable that the hollow portion is formed from the inlet-side opening toward the outlet-side opening. The opening area will become smaller. Thus, by forming the hollow portion into a truncated cone shape in advance, the time taken for the ferrule to be wound around the upper arm can be greatly shortened. Therefore, it is possible to quickly measure blood pressure, and it is possible to make a blood pressure measurement device which is excellent in convenience. Further, after the winding, the ferrule can be attached to the upper arm without a gap, so that the upper arm can be more uniformly pressed over the entire circumference, and the accuracy of blood pressure measurement can be improved. In the sphygmomanometer according to the present invention, the inner peripheral surface of the tubular portion is formed from a position corresponding to the inlet-side opening portion of the hollow portion toward a position corresponding to the outlet-side opening portion of the hollow portion. It is preferable that the opening area is small to form a slope. According to this configuration, the hollow portion can be easily formed into a truncated cone shape. In the sphygmomanometer according to the above aspect of the invention, the winding mechanism preferably includes a 200803788 fluid bag for bending an elastic plate, which is located on the outer side of the curved elastic plate, and expands the outer peripheral surface of the curved elastic plate toward the inner side. Pushing the curved elastic plate to reduce the outer diameter to press the upper arm compression fluid bag against the upper arm of the subject. According to this configuration, the winding mechanism can be configured with a relatively simple configuration, and at the same time, the winding mechanism of the upper arm pressing fluid bag can be surely wound to wind the upper arm. Further, in the blood pressure measuring device according to the present invention, the winding mechanism may further include a linear or band-like member wound around the outer side of the curved elastic plate, and at least by pulling the linear or band-shaped member At one end, the curved elastic plate is reduced in diameter, and the upper arm pressing fluid bag is pressed against the upper arm of the subject. According to this configuration, the winding mechanism can be configured with a relatively simple configuration, and the upper arm can be surely wound by the winding mechanism of the upper arm pressing fluid bag. [Effect of the Invention] According to the present invention, a blood pressure measuring device capable of rapidly measuring blood pressure sputum can be prepared, and the convenience of blood pressure measurement can be greatly improved. [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Further, the sphygmomanometer shown below has an automatic ferrule winding mechanism by which the ferrule to the upper arm winder is executed. (Embodiment 1) Fig. 1 and Fig. 2 are views showing the appearance of a sphygmomanometer according to a first embodiment of the present invention, and Fig. 1 is a perspective view of a sphygmomanometer according to the present embodiment as seen from the upper right oblique side. 2 The figure is an oblique view seen from the upper left oblique direction. In addition, Fig. 1 is a perspective view showing a state in which the sphygmomanometer is not in use, and Fig. 2 is a perspective view showing a state in which the upper arm insertion portion is rotated in the vertical direction at a position where the upper arm can be inserted. First, the appearance of the sphygmomanometer according to the present embodiment will be described with reference to the drawings. As shown in Fig. 1 and Fig. 2, the sphygmomanometer 1A of the present embodiment mainly includes a main body portion 2 placed on a mounting surface of a table or the like, and a hollow portion 5a having a subject inserted into the upper arm. The upper arm insertion portion 5. The main body portion 2 is covered by the body casing 3, and the interior of the main body casing 3 mainly houses various air-based modules 20 and 30, a CPU 40, and the like which will be described later (see Fig. 5). The one surface and the upper arm insertion portion 5 mainly include a substantially cylindrical upper arm insertion portion casing 6 as a cylindrical portion, and a ferrule disposed on the inner circumferential surface of the upper arm insertion portion casing 6. An operation unit 4A is provided on the upper surface of the main body unit 2, and various buttons such as a power button for cutting in a power source, a measurement button for starting a measurement operation, and a display unit operation button for performing an operation of the display unit are disposed. Further, at another position on the upper surface of the body portion 2, a display portion 4B for displaying a measurement result, an operation guide, or the like is provided. At a predetermined position on the upper surface of the main body portion 2 adjacent to the operation portion 4A and the display portion 4B, a time portion 3a for placing a hand when the subject takes a measurement posture is provided. The portion 3a at this time is constituted, for example, by providing a concave portion on the upper surface of the body casing 3. The upper arm insertion portion 5 is coupled to the main body portion 2 so as to be rotatable in the vertical direction by a rotation coupling mechanism including a rotation shaft. Specifically, the main body casing -11-200803788 3 and the upper arm insertion portion casing 6 are arranged by the rotation shaft disposed in the body casing 3 near the front end on the subject side of the main body portion 2, and The middle arrow A is rotatably connected in the direction. The ferrule disposed on the inner peripheral surface of the upper arm insertion portion casing 6 is covered by a ferrule cover 7 attached to the upper arm insertion portion casing 6. Further, at a predetermined position on the outer peripheral surface of the upper arm insertion portion casing 6, a handle 6a for the user to rotate and move the upper arm insertion portion 5 is provided. In the vicinity of the handle 6a, an unlock button 6b for rotating the upper arm insertion portion 6 housed in the main body portion 2 is provided. Figs. 3 and 4 are the sphygmomanometer shown in the present embodiment. A cross-sectional view of the internal structure of the upper arm insertion portion, Fig. 3 is an axial sectional view taken along the hollow portion of the upper arm insertion portion, and Fig. 4 is a more detailed cross-sectional view taken along a direction orthogonal to the axis of the hollow portion of the upper arm insertion portion. Next, the internal structure of the upper arm insertion portion of the sphygmomanometer according to the present embodiment will be described with reference to the drawings. As shown in FIG. 3 and FIG. 4, the upper arm insertion portion 5 mainly includes a configuration in which the ferrule is configured to be pressed by the upper arm of the upper arm compression fluid bag formed by winding the upper arm to press the upper arm. The air bladder 13 and the collar 10 of the curved elastic plate which is located on the outer side of the upper arm compression air bladder 13 and which is elastically deformable in a substantially cylindrical shape in the radial direction, and the fluid bag for bending the elastic plate compression The airbag 8 for compression of the collar is located on the outer side of the collar 10 and is pressed to press the outer peripheral surface of the collar 10 toward the inner side to reduce the diameter of the collar 10, and the upper arm is pressed by the air through the collar 10 The bag 13 is pressed against the upper arm of a part of the living organism. The collar -12-200803788 compression air bag 8' constitutes a part of the automatic ferrule winding mechanism as the winding mechanism. The collar air bag 8 is disposed inside the upper arm insertion portion case 6 which is located at the outermost side of the upper arm insertion portion 5. The collar air bag 8 is provided with an outer peripheral piece 8a that is in contact with the inner peripheral surface of the upper arm insertion portion case 6, and an inner peripheral piece 8b that is located inside the outer peripheral piece 8a, and by the outer peripheral piece 8a and the inner peripheral piece 8b is followed by or stitching to form a lumen 8c therebetween. The inner cavity 8c of the airbag pressure airbag 8 is swellably and volatably moved in accordance with the action of the air member 30 for compression of the collar (see Fig. 5). Further, in the sphygmomanometer 本A of the present embodiment, the inner cavity 8c of the collar air bag 8 is evenly divided in the circumferential direction and divided into six spaces, and the spaces are connected to each other. Expanded or contracted by an air system component. On the inner side of the airbag 8 for compression of the collar, a fabric 9 which is a low-friction member is disposed over the entire circumference. This fabric 9 is a member for reducing the sliding friction between the collar 1 〇 and the collar compression air bag 8. Inside the fabric 9, there is a collar 1 which is formed by a plate-like member which is substantially wound into a cylindrical shape. The collar 1 is formed, for example, of a resin material such as polypropylene resin, and has a crack extending in the axial direction at a predetermined position in the circumferential direction. With this crack, the collar 1 is elastically deformed in the diameter direction in accordance with the applied external force. That is, although the collar 10 is deformed in the radial direction by the action of the external force, it is restored to the original state when the action of the external force disappears. Further, at both ends in the circumferential direction of the collar 10, a portion thereof can be formed in a state where no external force is applied. Thereby, the construction is prevented from contracting due to encountering both ends of the collar 10 at the time of contraction. -13- 200803788 The majority of the collar 1 〇 is covered by a bag 1 1 which forms a bag of low friction members. This cloth bag 1 is a member for reducing the sliding friction between the collar 10 and the airbag 8 for compression of the collar, similarly to the above-described cloth 9. On the inner side of the collar 10, there is an upper arm pressing unit 12 including an upper arm compression air bladder 13. The upper arm pressing unit 12 is composed of an inner air pressing air bag 13 located at the innermost side and a shape maintaining member of the upper arm pressing air bag 13 which is located outside the upper arm pressing air bag 13 for maintaining rigidity. The rigid resin sheet 14 and the cloth 15 which is located on the outer side of the resin sheet 14 and which is in contact with the inner peripheral surface side of the resin sheet 14 are low friction members. The upper arm pressing air bladder 13 has an outer peripheral piece 13 3 a which is in contact with the inner peripheral surface of the resin plate 14, and a ferrule cover 7 which is located inside the outer peripheral piece 13 3 a and which is in contact with the inner peripheral surface of the upper arm insertion portion 5. The inner peripheral piece 13b has an inner cavity 13c between the outer peripheral piece 13a and the inner peripheral piece 13b. The inner cavity 13c of the upper arm compression air bladder 13 is swellably and volatably moved in accordance with the action of the upper arm compression air system unit 20 (see Fig. 5) which will be described later. The resin plate 14 is a shape maintaining member for maintaining the shape of the upper arm pressing air bladder 13 having a small rigidity in a substantially cylindrical shape. Further, the fabric 丨 5 is a member for reducing the sliding friction between the collar 10 and the upper arm pressing air bladder 13 . In the sphygmomanometer 1 A of the present embodiment, the air bag for pressing the upper arm is used! 3 In a state before being wound around the upper arm of the subject, the hollow portion 5a of the upper arm insertion portion 5 is formed to be large on the inlet side and small on the outlet side. In other words, as shown in Fig. 3, the inner diameter D 1 of the inlet-side opening 5 a 1 is larger than the inner diameter D 2 of the outlet-side opening 5 a 2 , and thus the inlet-side opening 5 a 1 is formed. The opening area is larger than the opening area of the outlet-side opening 5 a2. More specifically, the inner peripheral surface of the upper arm insertion portion casing 6 is opened toward the outlet side corresponding to the hollow portion 5a from the position corresponding to the inlet side opening portion 5a1 of the hollow portion 5a. The portion 5 a 2 is inclined so that the opening area thereof is gradually reduced, and the ferrule disposed on the inner circumferential surface of the upper arm insertion portion casing 6 is also configured to have a truncated cone shape including the hollow portion 5a. As a result, the hollow portion 5a is configured to be in a state before the upper arm pressing air bladder 13 is wound around the upper arm of the subject (that is, in a non-use state), and is more toward the outlet-side opening portion 5a from the inlet-side opening portion 5a1. 2 'The opening area is gradually decreasing. Fig. 5 is a block diagram showing the function of the blood pressure machine of the present embodiment. As shown in Fig. 5, the upper arm compression air bladder 3 and the collar compression air bladder 8 are connected to the upper arm compression air system unit 20 and the collar compression air system unit 30, respectively. Further, the upper arm pressing air system unit 20 and the collar air compressing unit 30 are controlled by the CPU 40, respectively. The upper arm compression air system unit 20 includes an air pump 21, an air valve 22, and a pressure sensor 23. The air pump 21 is a device for pressurizing the inner chamber 13c of the upper arm pressing air bag 13, and is driven by an air pump driving circuit 26 that receives a command from the CPU 40, and feeds the compressed gas into the inner chamber 13c at the time of measurement to make the upper arm The pressure of the inner chamber 13c of the air bag 13 for compression becomes a predetermined pressure. The gas valve 22 is a device for maintaining the pressure of the inner chamber 13c of the upper arm compression air bladder 13 or decompressing it, and controls the opening and closing state by the valve drive circuit 27 that receives the command from the CPU 40. The pressure of the inner chamber 13c of the arm compression air bladder 13 is maintained and depressurized by the air pump 21 in a high pressure state, and the inner chamber 1 3 c of the upper arm compression air bladder 13 is returned to the atmospheric pressure after the measurement is completed. The pressure sensor 2 3 is used for detecting the pressure of the inner cavity 13c of the upper arm compression air bag 13 from -15 to 200803788, and the upper arm compression air bag 1 3 cavity 1 3c is detected at the time of measurement. The pressure is output to the amplifier 28 in response to the signal detected by it. The amplifier 28 amplifies the signal output from the pressure sensor 23 and outputs it to the A/D converter 29. The A/D converter 29 digitizes and outputs the analog signal output from the amplifier 28 to the CPU 40. The collar air compressing unit 30 includes an air pump 31, a gas valve 32, and a pressure sensor 33. The air pump 31 is a device for pressing the inner cavity 8c of the airbag compression air bag 8, and is driven by an air pump drive circuit 36 that receives a command from the CPU 40, and supplies compressed gas to the inner cavity 8c at the start of measurement. The pressure of the inner cavity 8c of the air bag 8 for pressing the collar is set to a predetermined pressure. The gas valve 32 is a device for performing pressure maintenance and decompression of the inner cavity 8c of the airbag 8 for compression of the collar, and the valve opening and receiving state is controlled by the valve drive circuit 37 that receives an instruction from the CPU 40, and is determined during the measurement. The pressure of the inner chamber 8c of the airbag 8 for compression of the collar by the air pump 3 1 is maintained, and the inner chamber 8 c of the airbag 8 for compression of the collar is returned to atmospheric pressure after the end of the measurement. The pressure sensor 33 is a device for detecting the pressure of the inner cavity 8c of the airbag 8 for compression of the collar, and detects the pressure of the inner cavity 8c of the airbag 8 for compression of the collar at the start of the measurement, and detects it according to the pressure. The signal is output to amplifier 38. The amplifier 38 amplifies the signal output from the pressure sensor 3 3 and outputs it to the A/D converter 39. The A/D converter 39 digitizes and outputs the analog signal output from the amplifier 38 to the CPU 40. The CPU 40 executes the control of the upper arm compression air system unit 20 and the collar compression-16-200803788 by the air system unit 30 in accordance with an instruction input to the operation unit .4A provided in the sphygmomanometer body casing 3, and simultaneously The measurement result is output to the display unit 4B or the memory unit 41. Further, the CPU 40 calculates the blood pressure 含有 including the diastolic blood pressure 値 and the systolic blood pressure 掳 based on the digital signal input from the A/D converter 29. Further, the memory unit 41 is used to memorize the measurement result. Fig. 6 is a view showing a mounting sequence pattern of the ferrule of the sphygmomanometer according to the present embodiment, showing a state in which the arm is inserted into the hollow portion of the upper arm insertion portion. Fig. 7 is a schematic view showing a measurement posture after mounting. In addition, in these figures, it is assumed that the blood pressure is measured by the left arm. As shown in Fig. 6, when blood pressure sputum is measured using the sphygmomanometer 1A of the present embodiment, the main body unit 2 of the sphygmomanometer 1A is placed on the table 110 having the horizontal mounting surface, and the examinee 200 sits. Chair 120. Then, by pressing the unlock button 6b, the upper arm insertion portion 5 is moved in the direction of the arrow A1 in the figure, and the handle 6a provided in the upper arm insertion portion casing 6 of the sphygmomanometer 1A is gripped by the right hand, and the inclination angle of the upper arm insertion portion 5 is adjusted while The left hand is inserted into the hollow portion 5a of the upper arm insertion portion 5. The ferrule provided in the upper arm insertion portion 5 is brought into the position facing the upper arm 220 by inserting the left hand toward the depth of the inside of the hollow portion 5a and inserting the left arm into the left arm. Then, by gently bending the elbow of the left arm inserted into the hollow portion 5a and placing the elbow on the time portion 3a' provided on the main body portion 2, it becomes a measurement as shown in Fig. 7. posture. Further, at this time, the upper arm insertion portion 5 follows the action of the left arm and rotates in the direction of the arrow A2 in the figure, and finally forms an angular position of the inclination of the upper arm 220 of the left arm. Fig. 8 is a flow chart showing the measurement operation of the sphygmomanometer in the present embodiment. As shown in Fig. 8, the sphygmomanometer 1 A ′ of the present embodiment is switched to the measurement operation by pressing the measurement button provided in the operation unit 4A of the main body casing 3 by the examiner or the like -17-200803788. First, in step 1, the initial stage of the sphygmomanometer 1 A is performed. Next, in step 2, the air pressure of the collar air bag 8 is pressurized, and when the pressure of the inner chamber 8c of the airbag 8 for compression of the collar reaches a predetermined pressure, the pressurization of the airbag 8 for the collar compression is completed. (Step 3). Next, in step 4, the pressurization of the upper arm compression air bladder 13 is performed, and when the pressure of the inner chamber 丨3c of the upper arm compression air bladder 13 reaches a predetermined pressure, the pressurization of the upper arm compression air bladder 13 is completed. Step 5' performs the detection of the arterial pressure pulse wave while decompressing the upper arm compression air bladder 13, and then, in step 6, the CPU 4 算出 calculates the blood pressure 〇 based on the detection data of the arterial pressure pulse wave, in the step 7. The blood pressure is displayed on the display unit 4B provided in the main body casing 3, and in the step 8, the inner cavity 8c of the airbag for airbag 8 and the inner cavity 13c of the upper arm compression air bladder 13 are opened at atmospheric pressure. . Fig. 9 is a schematic cross-sectional view showing a state in which the upper arm is inserted into the hollow portion in the sphygmomanometer according to the embodiment. Further, Fig. 10 is a schematic cross-sectional view showing a state in which the ferrule is wound around the upper arm in the sphygmomanometer according to the embodiment. Hereinafter, the operation of the automatic ferrule winding mechanism of the sphygmomanometer according to the present embodiment and the correlation between the ferrule and the upper arm after the ferrule winding will be described with reference to the drawings. As described above, in the sphygmomanometer 1A of the present embodiment, the inner diameter D1 of the inlet-side opening 5a1 constituting the hollow portion 5a is larger than the inner diameter D2 of the outlet-side opening portion 5a2 of the hollow portion 5a. In this case, the opening area of the inlet-side opening 5a is formed to be larger than the opening area of the outlet-side opening 5a2. In the case of the '18-200803788, in most cases, the shape of the upper arm 220 is tapered from the center side toward the distal side, so that the upper arm 220 can be smoothly inserted into the hollow portion 5a as shown in FIG. . In the state shown in Fig. 9, when the automatic ferrule winding mechanism is operated, the collar compression air bag 30 is used to expand the collar compression air bag 8. Since the airbag 8 for the collar compression is restrained by the upper arm insertion portion casing 6 from the outer peripheral piece 8a, it is not expandable toward the outer side in the radial direction, and as a result, it expands only toward the inner side in the radial direction. By the expansion of the airbag 8 for compression of the collar, the outer peripheral surface of the collar 10 is pressed inward by the inner peripheral piece 8b of the airbag 8 for compression of the collar, so that the diameter of the collar 1 is reduced to The direction of diameter reduction. Then, the diameter of the collar 10 is reduced, and the air bladder 13 for pressing the upper arm is pressed against the upper arm of the subject by the collar 10 . Thereafter, the upper arm pressing air bladder 13 is expanded by the upper arm pressing air system unit 20, and is converted into the measurement state as shown in Fig. 1 . Here, in the sphygmomanometer 1 A of the present embodiment, when the hollow portion 5a is formed in the non-use state, the opening area is formed from the inlet-side opening portion 5a1 toward the outlet-side opening portion 5a2. The truncated cone shape gradually becomes smaller. Therefore, after the upper arm 220 is inserted (that is, in the state shown in FIG. 9), the distance between the upper arm 220 and the ferrule is substantially the same around the entire circumference of the upper arm 220, and is configured. When the airbag 8 inside the ferrule is inflated, the ferrule can be attached to the upper arm 220 for a short time. Further, at that time, if the airbag 8 for compression of the collar is uniformly expanded throughout the entire area, the inner circumferential surface of the ferrule contacts the entire circumference of the upper arm 220 substantially simultaneously throughout the entire region, so that it is not in the ferrule cover 7 or Bending or twisting, creping, etc. on the upper arm compression air bag 13 -19- 200803788. Therefore, when the upper arm compression air bladder 13 is expanded, the measurement accuracy due to occurrence of wrinkles or the like is not lowered, and the blood pressure enthalpy can be measured with high accuracy. Furthermore, as shown in Fig. 10, if the upper arm compression air bladder 13 which expands after the ferrule is wound can be uniformly expanded over the entire area, the upper arm can be uniformly pressed over the entire circumference, and the upper arm can be uniformly raised. The accuracy of blood pressure measurement. As described above, the sphygmomanometer which can measure blood pressure sputum quickly and accurately can be formed by the configuration of the present embodiment, and the convenience of measuring blood pressure sputum can be greatly improved. Further, among the elements constituting the ferrule, the airbag compression air bladder 8 or the upper arm compression air bladder 13 and various cloths are soft, and the collar 10 has a relatively large rigidity. . Therefore, the main factor for determining the shape of the ferrule hollow portion 5a is that the collar 10 can be easily formed by preliminarily forming the shape of the collar 1 圆锥 into a truncated cone shape having a hollow portion extending in the axial direction. The hollow portion 5a. However, when the inner peripheral surface of the upper arm insertion portion casing 6 is formed into an inclined shape as described above, it is not always necessary to form the collar i into a truncated cone shape having a hollow portion extending in the axial direction, by making the collar 10 into a circle. The tubular shape is inserted into the inner peripheral surface of the upper arm insertion portion casing 6 in a state where the diameter of the upper arm insertion portion casing 6 is reduced, and the hollow portion 5 a of the above shape can be more easily formed. (Embodiment 2) Fig. 1 is a cross-sectional view showing the internal structure of the upper arm insertion portion of the sphygmomanometer according to the second embodiment of the present invention, and is a cross-sectional view taken along the line 20-200803788 of the hollow portion of the upper arm insertion portion. Further, Fig. 1 is a view showing a configuration of an automatic ferrule winding mechanism of the sphygmomanometer according to the present embodiment. Further, the same portions as those of the sphygmomanometer 1 A of the above-described first embodiment are denoted by the same reference numerals in the drawings, and the description thereof will not be repeated. As shown in Fig. 1, the sphygmomanometer 1B of the present embodiment differs from the sphygmomanometer 1 A of the above-described embodiment 1 in the configuration of the automatic ferrule winding machine. In the sphygmomanometer 1B of the present embodiment, the airbag 8 for compression of the collar and the air member 30 for collar compression in the first embodiment are replaced by a belt wound around the outer side of the collar 10 The belt 16 of the member, the rotary drum 17 connected to one end of the belt 16 and the electric motor 18 for driving the rotary drum 17 constitute an automatic ferrule winding mechanism. Here, the rotary drum 17 and the electric motor 18 that rotationally drives the rotary drum 17 are equivalent to the pulling device. The belt 16 is wound in pairs around the both ends of the collar 10 in the axial direction. . One end of each of the belts 16 is fixed to the rotary drum 17 and the other end is fixed to the support pin 19 provided at a predetermined position inside the ferrule. Here, the support pin 1 9 fixes the other end of the belt 16 to be immovable. The rotary drum 17 is coupled to the rotary shaft 18a of the electric motor 18 via an actuating belt, and is rotationally driven by the electric motor 18. Further, it is preferable that the rotary drum 17 and the electric motor 18 are provided in pairs corresponding to each of the pair of belts 16. When the automatic ferrule winding mechanism is actuated, the belt 16 is wound by the rotating drum 17 and the collar 10 is reduced in diameter in the direction in which its diameter is reduced. Then, with the reduction of the diameter of the collar 10, the upper arm compression air bladder 13 is formed by the collar 10 to push and wrap the upper arm of the subject. Thereafter, the upper arm compression air bag 丨3 is expanded by the upper arm pressing air-21-200803788 gas system unit 20 to be converted into a measurement state. Further, it is also possible to use a line or the like instead of the belt 16. When such an automatic ferrule winding mechanism is employed, the inner diameter d 1 of the inlet side opening portion 5 a 1 of the hollow portion 5 a is also larger than the inner diameter D 2 of the outlet portion opening portion 5 a2 of the hollow portion 5 a. In addition, the same effects as those described in the first embodiment described above can be obtained. In other words, a sphygmomanometer that can perform measurement of blood pressure sputum quickly and with high precision can be used, and the convenience of blood pressure measurement can be greatly improved. In the above-described embodiments of the present invention, the fluid bag for pressing the upper arm or the fluid bag for bending the elastic plate is an air bag in which pressurized air is injected, but the invention is not particularly limited. For the air bag, of course, the upper arm compression fluid bag and the curved elastic plate compression fluid bag can be formed by a gas bag in which another gas is injected or a liquid bag in which the liquid is injected. As described above, all the points of the embodiments disclosed herein are merely illustrative and not restrictive. The technical scope of the present invention is defined by the scope of the claims and includes all modifications and equivalents within the scope and scope of the claims. [Brief Description of the Drawings] Fig. 1 is a perspective view showing the appearance of a sphygmomanometer according to the first embodiment of the present invention as seen from the upper right obliquely. Fig. 2 is a perspective view showing the appearance of the sphygmomanometer according to the first embodiment of the present invention as seen from the upper left obliquely. Fig. 3 is a cross-sectional view showing the internal structure of the sphygmomanometer upper arm insertion portion -22-200803788 according to the first embodiment of the present invention, along the axis of the hollow portion of the upper arm insertion portion. Fig. 4 is a cross-sectional view showing the internal structure of the upper arm insertion portion of the sphygmomanometer according to the first embodiment of the present invention, in a direction orthogonal to the axis of the hollow portion of the upper arm insertion portion. Fig. 5 is a view showing the functional block diagram of the blood pressure machine in the first embodiment of the present invention. Fig. 6 is a schematic view showing the procedure for mounting the ferrule in the sphygmomanometer according to the first embodiment of the present invention, showing a state in which the arm is inserted into the hollow portion of the upper arm insertion portion. Fig. 7 is a view showing a measurement posture pattern after the sphygmomanometer is installed in the first embodiment of the present invention. Fig. 8 is a flow chart showing the sphygmomanometer measurement operation in the first embodiment of the present invention. Fig. 9 is a schematic cross-sectional view showing a state in which an arm is inserted into a hollow portion of the sphygmomanometer according to the first embodiment of the present invention. Fig. 10 is a schematic cross-sectional view showing a state in which a sphygmomanometer according to an embodiment of the present invention is wound around an upper arm. Fig. 1 is a cross-sectional view showing the internal structure of the upper arm insertion portion of the sphygmomanometer according to the second embodiment of the present invention, taken along the axis of the hollow portion of the upper arm insertion portion. Fig. 1 is a view showing the configuration of an automatic ferrule winding mechanism of the sphygmomanometer according to the second embodiment of the present invention. [Description of main component symbols] 1 A, 1 B sphygmomanometer -23- 200803788 2 Main body part 3 Main body case 4A Operation part 4B Display part 5 Upper arm insertion part 5 a Hollow part 5al Entrance side opening part 5a2 Exit side opening part 6 Upper arm Insert housing 6 a handle 6b unlock button 7 ferrule cover 8 collar air bag 8a' 13a outer peripheral piece 8b, 13b inner peripheral piece 8c, 13c inner cavity 9, 15 cloth 10 collar 11 bag 12 upper arm pressing unit 13 Upper arm compression air bag 14 Resin plate 16 with 17 Rotating drum-24- 200803788 18 Electric motor 18a Rotary shaft 19 Support pin 20 Upper arm compression air supply unit 21, 3 1 Air pump 12, 32 Air valve 23, 33 Pressure sensing 26, 36 air pump drive circuit 27, 37 valve drive circuit 28, 38 amplifier 29, 39 A/D converter 30 axis res. Compression air system Vi system 40 CPU 41 memory unit 110 table 120 chair 200 By 210 刖 arm 220 upper arm -25-