PROBLEM TO BE SOLVED: To allow a sufficient amount of a physiologically active substance to be sent to adhere onto a processing object in a biological lumen.SOLUTION: A treatment device 10 includes: a shaft 12 to be inserted into a blood vessel and a processing unit 16 for allowing a physiologically active substance 22 to adhere onto a treatment region on an inner surface of a blood vessel. The processing unit 16 includes: multiple frames 18 capable of deforming the outer diameter of the processing unit 16 into a contraction state for sending inside a blood vessel and an expansion state for expanding the diameter outward in a radial direction and a film shape part 20 that is supported by the multiple frames 18, where a physiologically active substance 22 is applied to an external surface 20a, and in which the external surface 20a is folded inward in a contraction state and the external surface 20a is planarly abutted to a treatment region X in an expansion state.COPYRIGHT: (C)2014,JPO&INPIT【課題】生体管腔内の処置対象に対し充分な量の生理活性物質を送達して付着させる。【解決手段】治療デバイス10は、血管内に挿入されるシャフト12と、血管の内面の治療部位に生理活性物質22を付着させる処置部16とを備える。処置部16は、当該処置部16の外径を、血管内を送達可能な収縮状態と、径方向外側に拡径した拡張状態とに変形可能な複数のフレーム18と、複数のフレーム18に支持されるとともに生理活性物質22が外側面20aに塗布され、収縮状態において外側面20aが内側に畳まれ、拡張状態において外側面20aが治療部位Xに面状に当接する膜状部20とを備える。【選択図】図1
