To provide a stent kit capable of collecting a fluid or the like from an organ when placing an indwelling stent and collecting a fluid and the like even after indwelling. SOLUTION: The stent kit 10 comprises an indwelling stent 20 and an outer catheter 30, and an inner catheter 40 through which the through hole 46 is provided in the protruding portion 43. The outer catheter 30 and the inner catheter And the first and second connecting members 32 and 42 which can be attached to and detached from the proximal end of the endoscope 40, it is possible to extract only the endoscope 12 out of the body by removing the first and second connecting members 32 and 42 It is possible to collect a fluid or the like while leaving the indwelling stent 20, the outer catheter 30, and the inner catheter 40 in the body. BACKGROUND OF THE INVENTION【課題】留置用ステントを留置する際に器官から流体等を採取でき、留置後も流体等を採取し得るステントキットを提供すること。【解決手段】ステントキット10は、留置用ステント20及びアウターカテーテル30と、それらの内部を挿通し、突出部43に貫通孔46が設けられているインナーカテーテル40を具え、アウターカテーテル30とインナーカテーテル40の基端に着脱可能な第一・第二連結部材32,42を具えるから、第一・第二連結部材32,42を取外せば、内視鏡12のみを体外に引抜くことができるので、留置用ステント20、アウターカテーテル30、及びインナーカテーテル40を体内に残したまま、流体等を採取することができる。【選択図】図1
