PROBLEM TO BE SOLVED: To apply a coating substance to a treatment object of a living body lumen in a desired coating range and coating shape.SOLUTION: A living body lumen treatment device 10 includes a shaft 12 to be inserted into a blood vessel, and a balloon 14 that is provided on the shaft 12 and can be transferred from a deflated state to an inflated state. In the inflated state, the balloon 14 includes: a recessed portion configured to form a coating chamber which is substantially blocked between an inner surface of the blood vessel and the device a discharge port 22 provided on the recessed portion to discharge a coating substance toward the coating chamber X and a suction port provided inside the recessed portion to apply a negative pressure to the coating chamber.COPYRIGHT: (C)2015,JPO&INPIT【課題】生体管腔内の処置対象に対し被塗布物質を所望の塗布範囲及び塗布形状に塗布する。【解決手段】生体管腔治療デバイス10は、血管内に挿入されるシャフト12と、シャフト12に設けられ、収縮状態から拡張状態に移行可能なバルーン14とを備える。バルーン14は、拡張状態において、血管の内面との間で略閉塞された塗布室を形成可能な凹部と、凹部内に設けられ塗布室Xに向けて被塗布物質を吐出する吐出口22と、凹部内に設けられ塗布室に負圧を付与する吸引口とを有する。【選択図】図1
