The electrode catheter is obtained by providing a main catheter body (10), a control handle (20), catheter tips (31-34) that extend from the leading end of the main catheter body (10), and electrodes that are mounted on each of the catheter tips (31-34). The catheter tips (31-34) are substantially linear and the angles between the directions in which the various catheter tips (31-34) extend and the main catheter body (10) is 100-140 DEG . Using said electrode catheter: injury to the inner cardiac wall by the leading ends of the catheter tips does not occur even when a pressing force in the axial direction of the main catheter body acts on the inner cardiac wall it is possible to confirm contact of the electrodes, mounted on the catheter tips, with the inner cardiac wall by X-ray imaging and the catheter tips can be reliably gathered from inside the body without being snagged on the edge of the sheath opening.電極導管,係具備有:導管本體(10);和控制把手(20);和從導管本體(10)之前端而延伸出去的導管前端部(31~34);和被裝著於導管前端部(31~34)的各個處之電極,導管前端部(31~34),係實質性為直線狀,導管前端部(31~34)之各個的延伸方向和導管本體(10)之間所成的角度θ,係為100°~140°。若依據此電極導管,則就算是使導管本體之軸方向的推壓力作用在心臟內壁處,也不會有由於導管前端部之尖端而對於心臟內壁造成損傷的情況,並能夠在X光影像上對於被裝著在導管前端部處之電極與心臟內壁作了接觸一事作確認,而能夠並不發生導管前端部被勾掛在鞘套的開口緣處之情況地來確實的從體內作回收。10...導管本體11...管構件12...前端構件121...圓筒狀部分122...保持部分31...第1導管前端部32...第2導管前端部33...第3導管前端部311、331...芯體構件312、322、332...被覆管41a、42a、43a...前端電極42b、42c...環狀電極
