PROBLEM TO BE SOLVED: To provide a biliary tract catheter that can reduce the leakage of bile due to biliary tract damage.SOLUTION: A biliary tract catheter has one or more of inner-lumen lumina comprising a near-infrared fluorescent dye that emits near-infrared fluorescence when irradiated with a near-infrared ray at a wave length of 500 nm to 1400 nm.COPYRIGHT: (C)2014,JPO&INPIT【課題】胆管破損による胆汁の漏れを低減できる胆管カテーテルを提供する。【解決手段】波長500nm~1400nmの近赤外線照射時に近赤外蛍光を発する近赤外蛍光色素を含む1つ以上の内腔ルーメンを有する胆管カテーテル。【選択図】なし