PROBLEM TO BE SOLVED: To provide a catheter for smoothing the medication to a tumor of a medication object by decreasing an influence that obstructs the medication of a fiber stroma included in the tumor without influencing the other tissues except the tumor of the medication object.SOLUTION: The catheter 1 includes: an elongated skeleton 2 which has a lumen 5 thereinside a wire 3 which is installed in a site of the catheter 1 to be introduced in a living tissue 19 and incises the living tissue 19 a slider 8 which operates the wire 3 to displace at least a portion of wire 3 in a direction spaced away from the skeleton 2 and a wire rod 4.COPYRIGHT: (C)2012,JPO&INPIT【課題】薬剤投与対象の腫瘍以外の他の組織に影響を及ぼさずに腫瘍に含まれる繊維性間質の薬剤投与を阻害する影響を減らして、薬剤投与対象の腫瘍に対する薬剤投与を円滑化できるカテーテルを提供すること。【解決手段】本発明にかかるカテーテル1は、内部にルーメン5を有する細長い形状をなす躯体2と、当該カテーテル1の生体組織19内に導入される部位に設けられ、生体組織19を切開するワイヤ3と、ワイヤ3を操作して、ワイヤ3の少なくとも一部を、躯体2から離間する方向に変位させるスライダ8および線材4とを備える。【選択図】図2
