PROBLEM TO BE SOLVED: To provide a coating layer in a desired coating state when applying a coating substance to a treatment object.SOLUTION: A living body lumen treatment device 10 includes a shaft 12, and a coating layer forming part 16 that can be transferred from a deflated state to an inflated state. In the inflated state, the coating layer forming part 16 includes an outer coating portion 18 that comes into contact with an inner surface 80a of a blood vessel 80 and has a first discharge port 22 capable of discharging a pregel solution P. Further, in the inflated state, the coating layer forming part 16 includes an inner coating portion 20 that comes into contact with the outer coating portion 18 and has a second discharge port 24 capable of discharging a protection solution G.COPYRIGHT: (C)2015,JPO&INPIT【課題】処置対象に対し被塗布物質を塗布する際に、塗布層を所望の塗布状態とする。【解決手段】生体管腔治療デバイス10は、シャフト12と、収縮状態と拡張状態に移行可能な塗布層形成部16とを備える。塗布層形成部16は、拡張状態において、血管80の内面80aに当接し、プレジェル溶液Pを吐出可能な第1吐出口22を有する外側塗布部18を備える。さらに塗布層形成部16は、拡張状態において外側塗布部18に当接し、保護溶液Gを吐出可能な第2吐出口24を有する内側塗布部20を備える。【選択図】図1
