201200183 六、發明說明： 【發明所屬之技術領域】 本發明是關於導管。更具體而言，本發明β 可藉由操作被配置在體外之近位端侧的操作部疋關於〜種 變被插入體腔内的遠位端附近之方向的導營。4易地改 【先前技術】 通過血管被插入至心臟内部的電極導管 由操作被配置在體外的導管之近位端（基端的導營是藉 裝的操作部，使被插入體内的導管之遠位端 ^侧）所安 偏向。就用來使導管之遠位端偏向的機構而士則端）的方向 文獻1揭示有一種具備板簧、以及隔著板簧配例如專利 兩條操作用線繩（wire)，並藉由拉扯操作用^置在兩側的 端朝兩方向偏向的構造。使用板簧使遠位端偏使运位 時，可提高導管之彎曲部的平面性。 向的情況 (先前技術文獻） (專利文獻） 專利文獻1 :日本特開2008-245766號公報 【發明内容】 (發明所欲解決之課題） 習知之具備板簧的導管是在管狀構件内 狀f通在沿著導管之軸方向延伸的管腔uumer0 ζ自且由 板簧的近位端是藉由接著等而較在管狀構 造在操作用線繩受到拉扯以致板簧彎曲時 、構 端可能會相對於管狀構件扭轉。因此，習知的導== 322943 4 201200183 扭轉剛性提升的可能性。 本發明是鑒於這樣的課題而研創者，其目的在於提供 一種可使具備板簧的導管之扭轉剛性更為提高的技術。 • (用以解決課題之手段） . 本發明之某個樣態是導管。該導管的特徵為具備有： 管狀構件；以使沿著管狀構件之轴方向之側的端部之至少 一部分埋入管狀構件的方式設在管狀構件之内部的板簧； 以及在管狀構件的内部，分別設在板簧之一方主表面側的 第1區域及板簧之另一方主表面侧的第2區域，且包含操 作用線繩插通用通路的複數個通路。 根據該樣態，可使具備板簧的導管之扭轉鋼性更為提 高。 在上述樣態的導管中，板簧亦可使端部遍及軸方向之 整個區域地埋入管狀構件。又，亦可具備用來分別形成複 數個通路的複數個管部，並且在第1區域及第2區域中， 將複數個管部中至少一部分的管部設置成與板簧的主表面 相接。 而且，上述樣態的導管中，複數個管部亦可至少包含 兩個管部及一個操作用線繩插通用管部，並且在第1區域 及第2區域中，使兩個管部與板簧的主表面相接，使操作 用線繩插通用管部與板簧隔開設置。又，在第1區域及第 2區域中，亦可使兩個管部隔著沿導管之軸方向的板簧的 中心線而設置，並將操作用線繩插通用管部設在兩個管部 之間。 5 322943 201200183 而且，在第1區域及第2區域中’亦可使操作用線繩 插通用管部外切於兩個管部’並將複數個管部彼此配置成 分別内切於以導管之中心轴為中心的大致圓。又’在第1 區域及第2區域1ί7，亦可使兩個管部彼此隔開設置，並且 在第1區域及第2區域的至少一方中，在由兩個管部、操 作用線繩插通用管部、及板簧所包圍的區域插入用來調節 導管之彎曲性的構件。又，亦可在遠位端區域具備複數個 電極，並且將複數個電極用導線插通在複數個通路中之操 作用線繩插通用通路以外的至少一部分之通路。 此外，適當組合上述各要素的樣態也可包含在由本專 利申請案申請專利所保護的發明之範圍内。 (發明之效果） 根據本發明，可使具備板簧的導管之扭轉剛性更為提 局。 【實施方式】 以下，參照圖式來說明本發明之實施形態。此外，在 所有圖式中，對於同樣的構成要素是附上同樣的符號，以 下的說明會適當地省略詳細的說明。 (實施形態1) 實施形態1的導管是可進行前端偏向操作的電極導 官，可用在例如心律不整之診斷或治療。第丨圖是實施形 態1之導管的概略側面圖，第2圖是實施形態！之導管的 概略平面圖。第3圖是第i圖之Α—Α線上的概略剖面圖。 此外，第3圖中省略了板簧3〇、操作用線繩5〇a、5〇b的 322943 6 201200183 圖 如第1圖及第2圖所干杳 管狀構件4、握把6、前端晶實:形態！之導管2具備有: 似至叫以下適當^ =及複數個環狀電極 狀電極12」）。 衣狀電極】2a至12k統稱為厂環 導官2係在管狀構件 Μ及環狀電極12。前 、如料射料晶片電極 鮮接等固^在管狀構件阳1極10是藉由例如接著劑或 鉚接有直徑比管狀構件4 ^狀電極12a至m是例如 狀構件4的外周面 輕大的金屬製環而固定在管 定，可依能插通在管狀 / 12的數量並沒有特別的限 安心二有握把6。而且在握把6 作）的旋知7。以握把6 &端部之偏向操作（擺首操 管狀構件上二::構成操作部。 一筒二 扑所構成1筒4b _ f 内筒 區域。而且，夕卜②/ “ 卜门43之通位端的既定 密接址計^ 内周面與内筒41)的外周面是彼此 疋。外筒4a與内筒4b的固定可使 及第Λ :示通路3卜32(管體4卜(參照第4圖 古，，。Β㈣件4最好是遠位制近的s軟性相對較 同’近位端附近的柔軟性相對較低的構造。例如，管狀構 /、有將以下構件接合的構造：酉己置在遠位端側的肖氏 322943 7 201200183 D硬度20至63的 肖氏D硬户為，” 之近位端側相鄰而配置， 以及與構^ ^ 72，且柔軟性比構件1低的構件II ; 至80，且牟於：端侧相鄰而配置’肖氏D硬度為55 4亦可為sm1低的構件π卜此外，管狀構件 構件d:筒扑形成一體的構造。又，管狀 幻外筒4a亦可為多層構造。 喊聚的主要部妓由例如聚烯烴、聚酰胺1 —般約η $销等合成樹脂所構成。管狀構件4的外相 管狀構件=3Γ ’長度約500至120 〇腿。本實施形態中 冓件4的外徑約2.0mm、長度約117〇mip 鏽鋼前端晶片電極1〇及環狀電極12是由例如鋁、銅、不 使复、金、白金等導電性良好的金屬所構成。此外，為了 ς對於X線具有良好的造影性，前端晶片電極1G及環狀 及产12最好是由白金或其合金所構成。前端日日日片電極10 衣狀電極12的外徑並沒有特別的限定，但是好 構件4的外徑相同程度，通常約為〇 5至3mm。、 •第4圖是面向第2圖之B-B線上之剖面的概略斜視 圖。第5圖是第1圖之c-c線上的剖面圖。如第4圖及第 5圖所示，本實施形態之導管2係在管狀構件4的内部具 備板簧30、以及複數個通路31、32、33、34、35、36。 本實施形態是在收容空間20内收容有板簧3〇。板菁 30疋沿著管狀構件4之軸方向延伸的板狀體，具有朝管狀 構件4之轴方向延伸的兩個主表面30a、3〇b、以及朝管狀 構件4之轴方向延伸的兩個側面30c、30d。而且，板篑3〇 322943 8 201200183 之遠位端係延伸至管狀 位端係延伸至離管狀構件4 =碾位⑴端附近’板簧30之近 的板簧30是以使沿著管 ^位端既疋距離之處。此處 及端部30f埋入管狀禮 ★之軸方向之侧的端部30e 別内。藉此，收_ 2Q ==方式設在枚容空間 收容空間20被劃分成板菁3〇之^成㈣區域。亦即’ 區域20A、以及板簧3〇之^ 一方主表面30a側的第1 20B。 方主表面30b側的第2區域 在此，則述所謂「端部3〇 件4(内筒4b)」是指板”n 士 m〇f被埋入管狀構 」疋知板更30中’朝管狀 伸的侧面3Gc、3〇d、以^ 件之軸方向延 30c ' 30d ^ 表面30a、30b之與該侧面 due dud相接的區域是盥營 〇n a ^ s狀構件4相接。本實施形態的 筒4b的内辟;j：垃。P 3〇e、斯遍及轴方向整個區域地與内 在其狀構#νΓ。藉此，會形成板簧3q遍及全長地卡止 態’因此可限制操作用線繩受到操作時 :的板η 30相對於管狀構件4的扭轉。結果，導管2 齡提高，且可更為提高導管2之彎曲部的平 面性。此外’板簧3〇的存在範圍可依導管2之弯曲區域的 長度等適當設定。 在由板簧30劃分的第1區域20Α及第2區域20Β分別 »又有複數個通路。本實施形態是在第1區域·設有通略 31、33、34，在第2區域20B設有通路32、35、36。設在 第1區域20A的通路31、以及設在第2區域20B的通路32 疋分別被用來作為操作用線繩插通用通路。另外，設在第 9 322943 201200183 1區域20A的通路33、34以及設在第2區域20B的通路 36是被料作為可供從握把6延伸且與前端晶^ 35、 及環狀電極12 *t性連接的複數條導線插通的通路。510 複數個通路31至36分別是由複數個管體41、42、 44、45、46(管部）所形成。亦即，本實施形態是在^3、 間20内收容有具中空構造的複數個管體41至46， 官體41至46的中空部分是分別形成通路31至兆设其個 〇\4 , A之内徑、也就是通路3卜32的聽是例如約 .mm，S體43至46之内徑，也就是通路33至 徑是例如約0.45_。 至36的直 ‘ P 41有操作用線繩5〇a可滑動地插通，在管 4土2有操作用線繩5〇b可滑動地插通。在操作用線繩^ 遠位端形成有直觀位在管體41 _操作用線繩5〇a大 部分球狀的錦52a。在操作用線繩5Qb的遠位端同樣也 成有直比位在管體42 _操作麟繩5Qb大的部分球 的，52b。在前端晶片電極1{)的内侧形成有凹部I)，在 凹部U填充有銲料62。錯52a、52b是被埋人鮮料62。 乍用^i0a、501^被固定在輝料62及《晶 ° 並且與官狀構件4之遠位端的附近連接。 圖所m!繩5〇a、5〇b的近位端是與第1圖及第 一 ％紐7連接。藉此，藉由操作第1圖及第2圖 示的旋鈕7，可拉扯摔作用峻娜 位踹㈣^ 插作用線繩5〇a、5Gb，使導管2的 糾擺麵向。村麵態係可藉料扯操如線繩弧 322943 10 201200183 使導官2的遠位端朝第2圖的箭頭di方 操作用線㈣b，使衫2的遠位端鮮2_=D2；r 向偏向。 又，如此藉由在操作用線繩50a、50b的遠位端設置錨 似、挪’可使操作用線繩50a、50b不容易從録料62抽 二可使導官2的動作可靠性提升。此外，本實施 二、#作用線繩5〇a、是固定在前端晶片電極， ::二：限定於此’操作用線繩5〇a、_亦可 固疋在官狀構件4等。 《叫 晶片通有與前端晶片電極1G電性連接的前端 ==Γ前端晶片電極用導線6°的遠位端: …4 62(未圖示）。藉此，前端晶片電極用導 端電：1〇便可經由銲料62電性連接。此外，前 導線6〇的遠位端亦可藉由銲接而與前端;: 與環狀電極接。另外’在管體43、44、46有分別可 ” ° |性連接的複數個環狀電極料線（未圓_、 由管體43、44、46以及二導線的遠位端是經 電極12電性連接。各狀構件4的細孔而與各環狀 (夫圖用導線的遠位端是藉由銲料 (未圖不：)或#接而固定在環狀電極12。 42 θ^·施W中’讀41是與管體43、44相接，管體 ，與官體45、46相接。又，各管體41 = 疋在内筒4b的内周面。各管體咖 可使用接著髮崎法㈣，如 ^ 322943 11 201200183 2區域20B中，複數個管體中至少一部分的管體，此處為 第1區域20A側的兩個管體43、44、以及第2區域20B侧 的兩個管體45、46是被設置成分別與板簧30的主表面 30a、30b相接。藉此，就會成為板簧30由管體43、44及 管體45、46夾住的狀態，因此可限制板簧30相對於管狀 構件4之扭轉方向的動作。因而可更為提高導管2的扭轉 剛性。 又，在第1區域20A及第2區域20B中，操作用線繩 插通用管體41、42是與板簧30隔開設置。因此，比起管 體41、42更靠近板簧30的情況，能以更小的力量使板簧 30彎曲。因此，導管2的操作性會提升。管體41、42係 例如設置成其中心軸位在通過管體43、44、45、46之中心 軸的圓的外側。 又，本實施形態是在第1區域20A中，將兩個管體43、 44隔著沿導管2之軸方向的板簧30的中心線而設置。同 樣地，在第2區域20B將兩個管體45、46隔著沿導管2之 軸方向的板簧30的中心線而設置。而且，操作用線繩插通 用管體41是被設在兩個管體43、44之間，操作用線繩插 通用管體42是被設在兩個管體45、46之間。藉此，可使 管體41、42在平行於板簧30之主表面30a、30b的方向靠 近板簧30的中心線，因此可更為提高導管2的扭轉剛性。 又，操作用線繩插通用管體41是設置成與管體43、44外 切，操作用線繩插通用管體42是設置成與管體45、46外 切。藉此，比起管體41與管體43、44分開，並且管體42 12 322943 201200183 與官^5、46,況，可提高導管2的強度。 2的6圓’―面針對本實施形態之導管 i ==置的概略剖面圖。如第6圖所示，在 =2〇A及第2 _ 2gb中，複數 彼此被配置成分別與以導營 主40疋 圓S内切。藉此，可使管狀=轴為中心^假想大致 為大致圓形。管狀構件4 ，、剖面形狀容易地保持 時，即可容㈣將導管2#^=為大關形的情況 實施形態的導管2,可容#或血官。因此，根據本 而且，可^患者^^2導管2之良好的操作性》 管狀構件4之最大徑部分的大;2之_=(粗細）一般是由 該最大徑部分的大小_ U來決定。因此，使 圓形狀比起剖面騎形狀^""比較的情況時，剖面大致 2的空間利用率。料，=面夕角形形狀更可提高導管 線等的數量，且可謀 /可插通在管狀構件4的導 而且，藉由將管狀構;二多:錢化侧 形，可使管狀構件4的強;;^形狀形成為大致圓 =可形成穩定的構造。例:度 疋藉由鉚接直徑比管狀構 ^上所述，％狀電極12 狀構件4而固定在管狀構件4大的金屬環鎖固在管 形狀形成大致圓形， 稭使皆狀構件4的剖面 的力以致管狀構件4變物夺因為施加在管狀構件4 指正圓、具有可獲 。此外’前述所謂「大致圓」係 达坆果之程度的真圓度的圓。此外， 322943 13 201200183 板簧30亦可設置成使其側面3〇c、3〇d與假想大致圓S相 接。在該情況下，可使管狀構件4相對於外力形成更穩定 的構造。 本實施形態是在第1區域20A中使兩個管體43、44彼 此隔開設置，在第2區域20B中使兩個管體44彼此隔開設 置。因此’在第1區域20A形成有由管體43、44、管體41、 及板簧30所包圍的空間22A，在第2區域20B形成有由管 體45、46、管體42、及板簧30所包圍的空間22B。在該 空間22A、22B的至少一方可依需要插入用來調節導管2之 彎曲性的構件（以下適當稱為彎曲調節構件）。該彎曲調節 構件是例如由SUS或NiTi等金屬或樹脂所形成的棒材。藉 由插入彎曲調節構件，可使管狀構件4的硬度改變，藉此 可調節導管2的彎曲性。藉由在空間22A、22B任一方插入 彎曲調節構件，或是在空間22A、22B雙方插入柔軟性彼此 不同的彎曲調節構件，可使導管2的彎曲程度形成不對稱。 例如，藉由將彎曲調節構件插入空間22内之離導管2 的遠位端達既定距離的位置，而可將比彎曲調節構件更遠 位端側的區域設為導管2的彎曲區域。藉此，可使朝第^ 圖之箭頭D1方向彎曲時的導管2的彎曲範圍，比朝第2圖 之箭頭D2方向彎曲時的導管2的彎曲範圍更短。 回 被插入第1區域2〇Α的彎曲調節構件亦可分別與管體 4卜兩個管體43、44及板簣30相接。又，被插人第、2\ 域20β的彎曲調節構件亦可分別與管體42、兩個管體45、 46及板簣30相接。在該情況下，可使管狀構件4相對於 322943 14 201200183 外力形成更穩定的構造。 =以上所說明，本實施形態之導管2中的板簧3〇是以 使朝官狀構件4之軸方向延伸的端部30e、30f的至少一吾 分埋入管狀構件4的方纽在管狀構件4的内部。因此°，P 可防止當操作用線繩50a、50b受到操作而對板菁 時’在板簧30產生相對於管狀構件4的扭轉。藉此， 導管2的扭轉剛性提升。結果，可使導管2之 平面性提升。而且，藉此，可更為降低在導管2發生彎^ 形狀不良的可能性，或是因為板簧3()之_⑽ 4破損的可能性。而且’前端晶片電極用導線⑽及^ 極用導線是插通在通路34至36内，因此可防止導線^ 導官2的彎曲而彼此纏繞。藉此，可避免在導管2(管= 件4)的表面發生因纏繞的導線所引起的凹凸等。 構 本發明並不限於上述實施形態，亦可根據相關 知識施行各種設計變更⑽變形，這健過組合\的 形後的實施形態也包含在本發明之範圍。藉由：：疋變 態與以下變形例的組合所產生的新的實施形態㈣$ 所組合的實施形態及變形例各自的效果。 亏，、有 上述實施形態中的板簧3〇是遍及全長將兩 30f埋入管狀構件4，但是亦可在板菁3〇之全 e、 將兩端部30e、30f埋入管狀構件4。亦即 槐部分 只要在可獲得導管2之扭轉剛性提升效果的範1^件4是 軸方向延伸的端部30e及/或端部術的至少 ^將朝 狀構件4即可。 口^刀埋入管 322943 201200183 上述實施形態的導管2是在將形成於内筒扑的收容空 間20作成為一個管腔的情況時，可形成内筒牝具有單腔 構造且在内筒4b的管腔内收容有與内筒牝不同體的管體 41至46的構造，但是管體41至46亦可與管狀構件4形 成一體。亦即，内筒4b亦可具有形成有構成通路31至36 的複數個管腔及供板簣30插通用之貫穿孔的多腔構造。在 該情況下，藉由既定厚度的部分從距離構成通路31至36 的各管腔之内壁形成管部，並且使對應於通路33至36的 官部與板簧30的主表面30a、30b相接。藉此，可獲得導 管2的杻轉剛性提升效果。此外，内筒扑具有多腔構造的 情況，會形成板簧30之主表面3〇a、30b及侧面30c、30d 全部被埋入管狀構件4的構造，因而可更為提高導管2的 扭轉剛性提升效果。又，㈣4b具有乡腔構造的情況，會 形成内筒4b的構成材料集中在對應於空間22A、22B之區 域的狀態，但是亦可在該區域設有供彎曲調節構件插通用 的貫穿孔。 上述實施形態是在通路34至37全部插通有電極用的 導線’但是通路34至37亦可不是全部皆為導線插通用的 通路。例如，可在通路34至37的一部分插通作為用來檢 測導官2之遠位端附近之溫度的溫度感測器的熱電偶。 [產業上之可利用性] 本發明可利用於導管。 【圖式簡單說明】 第1圖是實施形態1之導管的概略側面圖。 16 322943 201200183 第2圖是實施形態1之導管的概略平面圖。 第3圖是第1圖之A-A線上的概略剖面圖。 第4圖是面向第2圖之B-B線上之剖面的概略斜視圖。 ^ 第5圖是第1圖之C-C線上的剖面圖。 . 第6圖是用來說明管部之配置的概略剖面圖。 【主要元件符號說明】 2 導管 4 管狀構件 4a 外筒 4b 内筒 6 握把 7 旋鈕 10 如端晶片電極 12 、 12a 至 12k 環狀電極 20A 第1區域 20B 第2區域 22A、22B 空間 30 板簧 30a、30b 主表面 30c 、 30d 侧面 30e 、 30f 端部 3卜 32 、 33 、34 、 35 、 36 通路 4卜 42、43 、44 、 45 、 46 管體 50a、50b 操作用線繩 17 322943 201200183 52a、52b 錨 6〇 前端晶片電極用導線 62 銲料 18 322943201200183 VI. Description of the Invention: [Technical Field to Which the Invention Is Ascribed] The present invention relates to a catheter. More specifically, the present invention β can be operated by operating an operation unit disposed on the proximal end side of the external body with respect to the direction in which the seed is inserted into the vicinity of the distal end in the body cavity. 4Easy to change [Prior Art] The catheter through which the blood vessel is inserted into the heart is operated by the proximal end of the catheter that is disposed outside the body (the base end of the guide is the borrowed operation portion, so that the catheter inserted into the body is The far end side ^ side) is biased. In the direction of the mechanism for deflecting the distal end of the catheter, the document 1 discloses a method in which a leaf spring is provided, and a two-wire wire for operation, for example, is provided via a leaf spring, and by pulling The operation is configured such that the ends on both sides are biased in both directions. When the plate spring is used to bias the distal end to the position, the flatness of the curved portion of the catheter can be improved. In the case of the tubular member, it is known that the catheter with the leaf spring is in the shape of the tubular member. The lumen end is extended in the direction of the axis of the catheter, and the proximal end of the leaf spring is caused by the subsequent end and the tubular structure is pulled when the operation wire is pulled so that the leaf spring is bent. Torsing relative to the tubular member. Therefore, the conventional guide == 322943 4 201200183 The possibility of torsional rigidity is reversed. The present invention has been made in view of such problems, and an object of the invention is to provide a technique for improving the torsional rigidity of a catheter having a leaf spring. • (Means for Solving the Problem) A certain aspect of the invention is a catheter. The catheter is characterized by: a tubular member; a leaf spring provided inside the tubular member such that at least a portion of the end portion along the axial direction of the tubular member is embedded in the tubular member; and inside the tubular member Each of the first region on the one main surface side of the leaf spring and the second region on the other main surface side of the leaf spring are provided, and a plurality of paths for the operation wire insertion common path are included. According to this aspect, the torsion rigidity of the duct having the leaf spring can be further improved. In the above-described duct, the leaf spring can also embed the end portion into the tubular member over the entire axial direction. Further, a plurality of tube portions for forming a plurality of passages may be provided, and in the first region and the second region, at least a part of the plurality of tube portions may be disposed to be in contact with the main surface of the leaf spring. . Further, in the above-described catheter, the plurality of tube portions may include at least two tube portions and one operation wire insertion universal tube portion, and in the first region and the second region, the two tube portions and the plate are provided. The main surfaces of the spring are connected to each other, so that the operation wire is inserted into the universal pipe portion and the leaf spring is spaced apart. Further, in the first region and the second region, the two tube portions may be provided via a center line of the leaf spring in the axial direction of the catheter, and the operation wire is inserted into the common tube portion in the two tubes. Between the ministries. 5 322943 201200183 Further, in the first region and the second region, 'the operation wire can be inserted into the common pipe portion to be cut into the two pipe portions' and the plurality of pipe portions are arranged to be respectively cut into the conduits. The center axis is a substantially circular center. Further, in the first region and the second region 1ί7, the two tube portions may be spaced apart from each other, and at least one of the first region and the second region may be inserted by the two tube portions and the operation wire. The general tube portion and the region surrounded by the leaf spring are inserted into a member for adjusting the flexibility of the catheter. Further, a plurality of electrodes may be provided in the distal end region, and a plurality of electrodes may be inserted into at least a part of the passages of the plurality of passages in the plurality of passages other than the common passage. Further, a mode in which the above-described respective elements are appropriately combined may be included in the scope of the invention protected by the patent application of the patent application. (Effect of the Invention) According to the present invention, the torsional rigidity of the catheter provided with the leaf spring can be further improved. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and the detailed description will be omitted as appropriate. (Embodiment 1) The catheter of Embodiment 1 is an electrode director capable of performing a distal end deflection operation, and can be used, for example, for diagnosis or treatment of arrhythmia. The figure is a schematic side view of the catheter of the first embodiment, and the second figure is an embodiment! A schematic plan view of the conduit. Figure 3 is a schematic cross-sectional view of the i-Α line of the i-th image. In addition, in the third figure, the leaf spring 3〇 and the operation cord 5〇a, 5〇b are omitted. 32294 6 201200183 The dry tubular member 4, the grip 6, and the front end crystal are as shown in Figs. 1 and 2 Real: Form! The catheter 2 is provided with the following appropriate ^ = and a plurality of annular electrode electrodes 12"). The garment electrode 2a to 12k is collectively referred to as the plant ring. The guide 2 is attached to the tubular member and the annular electrode 12. The front member, the raw material of the wafer electrode, or the like, is fixed to the outer member of the tubular member, such as by an adhesive or by riveting, having a diameter larger than the outer peripheral surface of the tubular member 4, for example, the electrode 12a to m is, for example, the member 4. The metal ring is fixed in the tube and can be inserted in the number of tubes / 12 and there is no special limit to the safety of the two grips 6. And in the grip 6 made). The operation of the grip 6 & end is performed on the second member of the tubular member: the upper part of the tubular member is formed: the inner tube portion is formed by a tube and two flutters. Moreover, the outer tube 2/"Bumen 43 The inner peripheral surface of the inner end surface of the inner end surface of the inner end surface of the inner tube 41) and the outer tube 4) are fixed to each other. The fixing of the outer tube 4a and the inner tube 4b can be used for the third step: the path 3b (the tube body 4b ( Referring to Fig. 4, the Β(4) member 4 is preferably a structure in which the s softness of the near position is relatively relatively softer than that near the proximal end. For example, the tubular structure has the following members joined together. Structure: Shaw 322943 7 201200183 D has been placed on the far end side of the D hardness of 20 to 63, the Shore D hard household, "the proximal end side is adjacent and configured, and the structure is ^ ^ 72, and the flexibility The member II is lower than the member 1; to 80, and the member is disposed adjacent to the end side. The Shore D hardness is 55 4 or the member sm1 is low. Further, the tubular member d: the tube is integrally formed. Further, the tubular outer tube 4a may have a multi-layer structure. The main portion of the shouting is composed of a synthetic resin such as polyolefin, polyamide 1, or the like. The outer tubular member of the tubular member 4 = 3 Γ 'the length is about 500 to 120 〇 leg. In the present embodiment, the outer diameter of the cymbal member 4 is about 2.0 mm, the length is about 117 〇 mip, the front end of the rust steel wafer electrode 1 环状 and the annular electrode 12 It is made of, for example, aluminum, copper, or a metal having good conductivity such as complex, gold, or platinum. In addition, in order to have good contrast properties for X-rays, the front end wafer electrode 1G and the ring and the product 12 are preferably made of It is composed of platinum or its alloy. The outer diameter of the front end solar electrode 10 is not particularly limited, but the outer diameter of the good member 4 is the same, usually about 〇5 to 3 mm. 5 is a schematic oblique view of a cross section taken along line BB of Fig. 2. Fig. 5 is a cross-sectional view taken along line cc of Fig. 1. As shown in Figs. 4 and 5, the catheter 2 of the present embodiment is a tubular member. The inside of the 4 includes a leaf spring 30 and a plurality of passages 31, 32, 33, 34, 35, and 36. In the present embodiment, the leaf spring 3 is housed in the accommodating space 20. The sapphire 30 is along the tubular member 4. a plate-like body extending in the axial direction, having two main members extending in the axial direction of the tubular member 4 The surfaces 30a, 3〇b, and the two side faces 30c, 30d extending in the axial direction of the tubular member 4. Moreover, the distal end of the plate 篑3〇322943 8 201200183 extends to the tubular end portion to extend away from the tubular member 4 = The leaf spring 30 near the end of the grinding wheel (1) is close to the end of the tube. Here, the end 30f is buried at the end of the side of the axis of the tube. 30e. In this way, the _ 2Q == mode is set in the escaping space accommodating space 20 to be divided into the stencil (3) area. That is, the first 20B on the side of the main surface 30a of the region 20A and the leaf spring 3〇. Here, the second region on the side of the main surface 30b is referred to as "the end portion 3 (the inner tube 4b)" means that the plate "n" m〇f is buried in the tubular structure. The side surface 3Gc, 3〇d extending toward the tubular shape, and the axial direction of the member 30c' 30d ^ The area of the surface 30a, 30b which is in contact with the side due dud is the contact of the 〇 〇 na ^ s member 4. The lining of the cartridge 4b of the present embodiment; j: la. P 3〇e, Si and the entire area of the axis and its internal structure #νΓ. Thereby, the leaf spring 3q is formed in a state of being stuck over the entire length. Therefore, it is possible to restrict the twist of the plate η 30 with respect to the tubular member 4 when the operation wire is subjected to the operation. As a result, the catheter is 2 years old, and the flatness of the curved portion of the catheter 2 can be further improved. Further, the range in which the leaf spring 3 is present can be appropriately set depending on the length of the curved region of the catheter 2 or the like. The first region 20A and the second region 20A, which are divided by the leaf spring 30, respectively, have a plurality of paths. In the present embodiment, the first regions are provided with the passages 31, 33, and 34, and the second regions 20B are provided with the passages 32, 35, and 36. The passage 31 provided in the first region 20A and the passage 32 in the second region 20B are respectively used as the operation cord insertion common passage. Further, the passages 33, 34 provided in the region 20A of the 9th 322943 201200183 1 and the passage 36 provided in the second region 20B are intended to be extendable from the grip 6 and to the front end crystal 35 and the annular electrode 12 * A path through which a plurality of wires of the t-connection are inserted. 510 A plurality of passages 31 to 36 are formed by a plurality of tubes 41, 42, 44, 45, 46 (tube portions), respectively. That is, in the present embodiment, a plurality of tubular bodies 41 to 46 having a hollow structure are housed in the third and middle portions 20, and the hollow portions of the official bodies 41 to 46 are respectively formed with passages 31 to megabytes. The inner diameter of A, that is, the passage 3, is, for example, about .mm, the inner diameter of the S bodies 43 to 46, that is, the passage 33 to the diameter is, for example, about 0.45 mm. The straight line ～P 41 has an operation cord 5〇a slidably inserted, and the tube 4 soil 2 has an operation cord 5〇b slidably inserted. At the distal end of the operation cord 2, a brocade 52a which is intuitively positioned on the tubular body 41_operation cord 5〇a is formed. At the distal end of the operating cord 5Qb, a partial ball 52b which is larger than the tubular body 42_operating rope 5Qb is also formed. A concave portion I) is formed inside the front end wafer electrode 1{), and the concave portion U is filled with the solder 62. Errors 52a and 52b are buried in fresh material 62. The crucibles ^i0a, 501^ are fixed to the phosphor 62 and "crystal" and are connected to the vicinity of the distal end of the official member 4. The proximal end of the m! rope 5〇a, 5〇b is connected to the first figure and the first one. Thereby, by operating the knobs 7 of Figs. 1 and 2, it is possible to pull the snagging force 踹 (4) ^ to insert the action cords 5〇a, 5Gb, and to make the catheter 2 face-aligned. The village face can be borrowed as a rope rope 322943 10 201200183 The far end of the guide 2 is directed to the arrow di square operation line (4) b, so that the far end of the shirt 2 is fresh 2_=D2; Towards a bias. Further, by providing anchors and shifts at the distal ends of the operating cords 50a, 50b, the operational cords 50a, 50b are not easily extracted from the recording material 62, and the operational reliability of the guide 2 can be improved. . Further, in the second embodiment, the action wire 5〇a is fixed to the front end wafer electrode, and the second operation is limited to the operation wire 5〇a, _ which may be fixed to the official member 4 or the like. The front end of the wafer is electrically connected to the front end wafer electrode 1G == the far end of the front end wafer electrode lead 6°: ... 4 62 (not shown). Thereby, the leading end wafer electrode terminal can be electrically connected via the solder 62 by one turn. In addition, the distal end of the front lead 6〇 can also be joined to the front end by soldering; In addition, in the tube bodies 43, 44, 46, there are a plurality of annular electrode material lines which are respectively connectable (uncircular, the distal ends of the tubes 43, 44, 46 and the two wires are via the electrodes 12) Electrically connected, the pores of each of the members 4 and the respective ends of the wires (the distal ends of the wires for wire drawing are fixed to the ring-shaped electrode 12 by solder (not shown) or #. 42 θ^· In the case of the reading 41, the reading 41 is in contact with the tubular bodies 43, 44, and the tubular body is in contact with the official bodies 45 and 46. Further, each tubular body 41 = 疋 is on the inner circumferential surface of the inner cylinder 4b. By using the following method (4), such as ^ 322943 11 201200183 2, in the region 20B, at least a part of the plurality of tubes, here the two tubes 43 and 44 on the first region 20A side, and the second region 20B The two tubular bodies 45, 46 on the side are disposed to be in contact with the main surfaces 30a, 30b of the leaf spring 30, respectively, whereby the leaf spring 30 is sandwiched by the tubular bodies 43, 44 and the tubular bodies 45, 46. Therefore, the movement of the leaf spring 30 with respect to the twisting direction of the tubular member 4 can be restricted. Therefore, the torsional rigidity of the duct 2 can be further improved. Further, in the first region 20A and the second region 20B, the operation cord The plug-in general-purpose tubular bodies 41, 42 are provided spaced apart from the leaf spring 30. Therefore, the leaf spring 30 can be bent with less force than when the tubular bodies 41, 42 are closer to the leaf spring 30. Therefore, the catheter 2 is The operability is improved. The tubular bodies 41 and 42 are disposed, for example, such that their central axes are outside the circle passing through the central axes of the tubular bodies 43, 44, 45, and 46. This embodiment is also in the first region 20A. The two tubular bodies 43, 44 are disposed along the center line of the leaf spring 30 in the axial direction of the catheter 2. Similarly, the two tubular bodies 45, 46 are interposed along the axis of the catheter 2 in the second region 20B. The center line of the leaf spring 30 is provided. Further, the operation wire insertion universal pipe body 41 is provided between the two pipe bodies 43, 44, and the operation wire rope insertion general pipe body 42 is provided in two. Between the tubular bodies 45, 46. Thereby, the tubular bodies 41, 42 can be brought close to the center line of the leaf spring 30 in a direction parallel to the main surfaces 30a, 30b of the leaf spring 30, so that the torsional rigidity of the catheter 2 can be further improved. Further, the operation wire rope insertion universal pipe body 41 is disposed to be circumscribed with the pipe bodies 43, 44, and the operation wire rope insertion general pipe body 42 is disposed outside the pipe bodies 45, 46. Thereby, the strength of the catheter 2 can be increased compared to the tube body 41 being separated from the tube bodies 43, 44, and the tube body 42 12 322943 201200183 and the official position 5, 46. A schematic cross-sectional view of the catheter i == according to the embodiment. As shown in Fig. 6, in =2〇A and 2_2gb, the plural numbers are arranged to be inscribed with each other by the guide circle 40. Thereby, the tubular = axis can be made centered on the assumption that it is substantially circular. When the tubular member 4 and the cross-sectional shape are easily held, it is possible to accommodate (4) the catheter 2#^= is in a large-closed state. The catheter 2 of the embodiment can accommodate # or blood. Therefore, according to the present invention, the good operability of the catheter 2 can be made large. The maximum diameter portion of the tubular member 4 is large; the _= (thickness) of 2 is generally determined by the size _ U of the largest diameter portion. . Therefore, when the circular shape is compared with the shape of the cross-section riding shape, the space utilization ratio of the cross section is approximately two. Material, = face shape can increase the number of conduit lines and the like, and can be / can be inserted into the guide of the tubular member 4, and by the tubular structure; more than: money side shape, the tubular member 4 can be made Strong;; ^ shape formed into a rough circle = can form a stable structure. For example, the metal ring fixed to the tubular member 4 by the riveted diameter than the tubular structure is fixed in the shape of the tube to form a substantially circular shape, and the straw is formed into a substantially circular shape. The force of the cross-section causes the tubular member 4 to be deformed by the application of the tubular member 4 to a perfect circle. In addition, the aforementioned "substantially round" is a circle of roundness of the degree of the fruit. Further, 322943 13 201200183 The leaf spring 30 may be disposed such that its side faces 3〇c, 3〇d are in contact with the imaginary substantially circular S. In this case, the tubular member 4 can be formed into a more stable configuration with respect to an external force. In the present embodiment, the two tubular bodies 43, 44 are spaced apart from each other in the first region 20A, and the two tubular bodies 44 are spaced apart from each other in the second region 20B. Therefore, the space 22A surrounded by the pipe bodies 43, 44, the pipe body 41, and the leaf spring 30 is formed in the first region 20A, and the pipe bodies 45, 46, the pipe body 42, and the plate are formed in the second region 20B. The space 22B surrounded by the spring 30. At least one of the spaces 22A and 22B may be inserted with a member for adjusting the flexibility of the duct 2 (hereinafter referred to as a bending adjustment member as appropriate). The bend regulating member is, for example, a rod formed of a metal such as SUS or NiTi or a resin. By inserting the bending regulating member, the hardness of the tubular member 4 can be changed, whereby the flexibility of the catheter 2 can be adjusted. The degree of bending of the catheter 2 can be made asymmetrical by inserting the bending adjustment member in either of the spaces 22A, 22B or by inserting bending adjustment members having different flexibility from each other in the spaces 22A, 22B. For example, by inserting the bending regulating member into the space 22 at a position away from the distal end of the catheter 2 by a predetermined distance, the region farther than the bending regulating member can be set as the curved region of the catheter 2. Thereby, the bending range of the catheter 2 when bending in the direction of the arrow D1 of the second figure can be made shorter than the bending range of the catheter 2 when bending in the direction of the arrow D2 of the second drawing. The bending adjustment member inserted into the first region 2〇Α can also be in contact with the tubular body 4 and the two tubular bodies 43, 44 and the plate 30, respectively. Further, the bending adjustment members inserted into the second and second domains 20β may be in contact with the tubular body 42, the two tubular bodies 45, 46, and the platen 30, respectively. In this case, the tubular member 4 can be made to have a more stable configuration with respect to the external force of 322943 14 201200183. As described above, the leaf spring 3 in the duct 2 of the present embodiment is in a tubular shape in which at least one of the end portions 30e, 30f extending in the axial direction of the official member 4 is embedded in the tubular member 4. The inside of the member 4. Therefore, P can prevent the torsion of the leaf spring 30 from being generated in the leaf spring 30 when the operation wire 50a, 50b is operated to the plate. Thereby, the torsional rigidity of the catheter 2 is increased. As a result, the planarity of the catheter 2 can be improved. Further, by this, it is possible to further reduce the possibility of a defective shape of the catheter 2 or the possibility of breakage of the _(10) 4 of the leaf spring 3 (). Further, the leading end wafer electrode lead wire (10) and the ^ pole wire are inserted into the passages 34 to 36, so that the wire guides 2 can be prevented from being bent and entangled with each other. Thereby, it is possible to avoid unevenness or the like caused by the wound wire on the surface of the catheter 2 (tube = member 4). The present invention is not limited to the above-described embodiments, and various design changes (10) may be applied in accordance with the relevant knowledge, and the embodiment after the combination is also included in the scope of the present invention. The effect of each of the embodiments and the modifications of the new embodiment (4) $ which is produced by the combination of the 疋 metamorphosis and the following modifications. In the above-described embodiment, the leaf springs 3 are embedded in the tubular member 4 over the entire length of the tubular member 3, but the tubular members 4 may be embedded in the entire surface of the sapphire 3's. That is, the 槐 portion may be at least the end portion 30e extending in the axial direction and/or at least the directional member 4 in the axial direction extending end portion 4 of the catheter 2. In the case of the catheter 2 of the above-described embodiment, when the accommodating space 20 formed in the inner tube is made into one lumen, the tube having the inner cylinder and having the single-chamber structure and the inner cylinder 4b can be formed. The configuration in which the tubes 41 to 46 different from the inner cylinder are housed is accommodated in the chamber, but the tubes 41 to 46 may be integrally formed with the tubular member 4. That is, the inner cylinder 4b may have a multi-chamber structure in which a plurality of lumens constituting the passages 31 to 36 and a through hole through which the plate 30 is inserted are formed. In this case, the tube portion is formed from the inner wall of each of the lumens constituting the passages 31 to 36 by the portion of the predetermined thickness, and the main portions corresponding to the passages 33 to 36 are opposed to the main surfaces 30a, 30b of the leaf spring 30. Pick up. Thereby, the twisting rigidity lifting effect of the guide tube 2 can be obtained. Further, in the case where the inner tube has a multi-chamber structure, the main surfaces 3a, 30b of the leaf spring 30 and the side surfaces 30c, 30d are all embedded in the tubular member 4, so that the torsional rigidity of the catheter 2 can be further improved. Improve the effect. Further, in the case where (4) 4b has a rural structure, the constituent material of the inner cylinder 4b is concentrated in a state corresponding to the regions of the spaces 22A and 22B, but a through hole for inserting the bending adjustment member may be provided in the region. In the above embodiment, the wires for the electrodes are inserted through all of the vias 34 to 37. However, not all of the vias 34 to 37 may be used for the insertion of the wires. For example, a thermocouple which is a temperature sensor for detecting the temperature near the distal end of the guide 2 can be inserted in a part of the passages 34 to 37. [Industrial Applicability] The present invention can be utilized in a catheter. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic side view showing a catheter of a first embodiment. 16 322943 201200183 Fig. 2 is a schematic plan view of the catheter of the first embodiment. Fig. 3 is a schematic cross-sectional view taken along line A-A of Fig. 1. Fig. 4 is a schematic perspective view showing a cross section taken along line B-B of Fig. 2; ^ Figure 5 is a cross-sectional view taken on line C-C of Figure 1. Fig. 6 is a schematic cross-sectional view for explaining the arrangement of the pipe portions. [Main component symbol description] 2 Conduit 4 Tubular member 4a Outer cylinder 4b Inner cylinder 6 Grip 7 Knob 10 End wafer electrode 12, 12a to 12k Ring electrode 20A First region 20B Second region 22A, 22B Space 30 Leaf spring 30a, 30b Main surface 30c, 30d Side 30e, 30f End 3 Bu 32, 33, 34, 35, 36 Path 4 Bu 42, 43 , 44 , 45 , 46 Body 50a, 50b Operating cord 17 322943 201200183 52a , 52b anchor 6〇 front end wafer electrode wire 62 solder 18 322943