Divergence sutento deformation possibility or has the 1st end which is collapse possible by the power whose 2nd is smaller than the end. To make one end of sutento organizational support form expand inside the lateral branch blood vessel of the blood vessel divergence section with the collapse possible 1st end of divergence sutento and the 2nd end which raises rigidity, making the other end collapse easily, it is possible to apply to the side wall of the main blood vessel which sutento is passing. In order as for the method of supporting the body tube cavity which diverges with divergence sutento, divergence sutento thing and the distal (2036) part which are forwarded to the body tube intracavitary divergence section with not yet extended form are located substantially inside the lateral branch blood vessel of the divergence section, for the proximal collapse possible part to be located substantially inside the main blood vessel, it makes thing, expand divergence sutento thing, and main blood vessel sutento which locate divergence sutento with side of divergence sutento, the collapse possible proximal part of divergence sutento collapsing one part at least with that, it includes the fact that it applies to the main blood vessel.分岐ステントは、第2の端部より小さい力で変形可能又は圧潰可能である第1の端部を有する。分岐ステントの圧潰可能な第1の端部及び剛性を高めた第2の端部により、ステントの一端部を血管分岐部の側枝血管内で組織支持形態に拡張させておきながら、他端部を容易に圧潰させて、ステントが通っている主血管の側壁に当てることができる。分岐した身体管腔を分岐ステントで支持する方法は、分岐ステントを未拡張形態で身体管腔内の分岐部に送出すること、遠位部分が分岐部の側枝血管内に実質的に位置し、近位の圧潰可能な部分が主血管内に実質的に位置するように、分岐ステントを位置付けること、分岐ステントを拡張すること、及び、主血管ステントを分岐ステントの脇で拡張させ、それにより、分岐ステントの圧潰可能な近位部分の少なくとも一部分を圧潰して主血管に当てることを含む。
