PROBLEM TO BE SOLVED: To effectively suppress the enlargement of an aneurysm, and to deter biotissue from being pressed by the aneurysm after treatment.SOLUTION: A device assembly 10 for aneurysm treatment includes a tip indwelling part 32 which has a predetermined elastic force, and a shaft 12 which can support the tip indwelling part 32. The tip indwelling part 32 assumes a shape which is elongated toward a tip direction from base end parts 34a and 36a to a curved part 42, curved in an approximately arc shape in the curved part 42 and elongated toward a base end direction from the curved part 42 to tip parts 34b and 36b, in a natural state. Additionally, when inserted into an aneurysm 102 formed in a blood vessel 100, the tip indwelling part 32 pinches the aneurysm 102 from the inside in such a manner as to press it against an outer surface of the blood vessel 100, and is indwelled in the aneurysm 102.COPYRIGHT: (C)2013,JPO&INPIT【課題】瘤の膨大化を効果的に抑制するとともに、処置後の瘤による生体組織の圧迫を抑止する。【解決手段】瘤治療デバイス組立体10は、所定の弾性力を有する先端留置部32と、先端留置部32を支持可能なシャフト12と、を備える。先端留置部32は、自然状態で、基端部34a、36aから湾曲部42まで先端方向に向かって延在し、湾曲部42において略円弧状に湾曲し、湾曲部42から先端部34b、36bまで基端方向に向かって延在する形状をなしている。また、先端留置部32は、血管100に形成される瘤102内に挿入された場合に、瘤102を血管100の外面に押し付けるように内側から挟み込み、瘤102内に留置される。【選択図】図1
