PROBLEM TO BE SOLVED: To provide a catheter of bi-direction type that can operate the deflection of a tapering tip.SOLUTION: A catheter operable for tip deflection comprises a catheter tube 10, a tip electrode 20, an operation wire 30, a conductor wire 40, a temperature sensor 50, a temperature sensor protective pipe 60, and an anchor member 80 for operation. The anchor member 80 has through holes 81, 82, and inner holds 83, 84. The operation wire 30 is formed of one wire extending from one end of the interior of the tube 10 in a distant direction, extending through the through hole 81 of the anchor member 80 and through a return through-hole 82 near a distant end 80D, extending in the tube 10 in a proximal direction, and reaching the other end. A temperature sensor protective pipe 60 is inserted and fixed in the inner hole 83 of the anchor member 80. Thereby, the temperature measurement part of the temperature sensor 50 is arranged in the tip electrode 20. The distal end of the conductor wire 40 is inserted and fixed in the inner hole 84 of the anchor member 80, thereby connecting the conductor wire 40 to the tip electrode 20.COPYRIGHT: (C)2015,JPO&INPIT【課題】バイデレクションタイプで細径の先端偏向操作可能カテーテルを提供すること。【解決手段】カテーテルチューブ10と、先端電極20と、操作用ワイヤ30と、導線40と、温度センサ50と、温度センサ保護管60と、操作用ワイヤのアンカー部材80とを備えてなり;アンカー部材80には、貫通孔81,82と、内孔83,84とが形成され、操作用ワイヤ30は、チューブ10の内部を一端側から遠位方向に延び、アンカー部材80の貫通孔81を通って遠位端80Dで折り返し貫通孔82を通って、チューブ10の内部を近位方向に延びて他端に至る1本のワイヤからなり、アンカー部材80の内孔83に温度センサ保護管60が挿入固定されることで、温度センサ50の測温部が先端電極20の内部に配置され、アンカー部材80の内孔84に導線40の遠位端が挿入固定されることで、導線40が先端電極20に接続されている。【選択図】 図2
