PROBLEM TO BE SOLVED: To effectively suppress rise of the internal pressure in a bump and to reduce an influence on the peripheral tissue.SOLUTION: A bump treating device assembly 10 includes: a clip 18 which has a prescribed elasticity and which can be inserted into a bump 102 formed in a blood vessel 100 and a shaft 12 which supports the clip 18 and which is relatively retractable to the clip 18. The clip 18 has a plurality of extensions 30 extending toward the proximal end and a distal end connecting part 28 for connecting and supporting the distal ends of the plurality of extensions 30. The plurality of extensions 30 in a natural state are formed in such a shape that proximal end opposing parts 36a of the plurality of extensions 30 are approximate to each other. The plurality of extensions 30 are elastically deformed and opened as the shaft 12 moves forward and abuts to the extensions. Then, the extensions 30 are restored to the natural state from the opened sate as the shaft 12 moves backward, and the extensions 30 are removed from the shaft 12 with the proximal end opposing parts 36a holding a wall 102a of the bump 102.COPYRIGHT: (C)2013,JPO&INPIT【課題】瘤内圧の上昇を効果的に抑制することができ且つ周辺組織への影響を低減する。【解決手段】瘤治療デバイス組立体10は、所定の弾性力を有し血管100に形成される瘤102内に挿入可能なクリップ部18と、クリップ部18を支持するとともにクリップ部18に対し相対的に進退自在なシャフト12と、を備える。クリップ部18は、基端方向に延出する複数の延出部30と、複数の延出部30の先端を連結支持する先端連設部28とを有し、自然状態で、複数の延出部30の基端側対向部36aが互いに近接した形状をなしている。複数の延出部30は、シャフト12の進出移動による当接にともない弾性変形して拡開し、シャフト12の後退移動にともない拡開状態から自然状態に復元して基端側対向部36aが瘤102の壁部102aを挟み込み、シャフト12から離脱される。【選択図】図1
