A delivery system for introducing a self-expanding tube into a blood vessel is disclosed. In one configuration, a tubular member configured for insertion into a blood vessel is provided. The elongated body extends within the lumen of the tubular member. The self-expanding tube is radially introduced between the tubular member and the elongated body. At least 50% or more of the length of the self-expanding tube engages at least a portion of the self-expanding tube with the tubular member on the outside and the elongated body on the inside. Longitudinal engagement forces acting between the self-expanding tube and the tubular member, and longitudinal engagement forces acting between the self-expanding tube and the elongated body, at all stages of introduction of the self-expanding tube during use, Retracting the tubular member relative to the elongate body in the longitudinal direction substantially eliminates relative longitudinal movement between the elongate body and any portion of the self-expanding tube that remains engaged with the elongate body.自己拡張チューブを血管に導入するための送達システムが開示される。一構成では、血管内への挿入用に構成された管状部材が提供される。細長い本体は、管状部材の管腔内に延びる。自己拡張チューブは、管状部材と細長い本体との間に半径方向に導入される。自己拡張チューブの長さの少なくとも５０％以上で、自己拡張チューブの少なくとも一部が外側に管状部材と、内側に細長い本体と係合する。自己拡張チューブと管状部材の間に作用する長手方向の係合力、および自己拡張チューブと細長い本体の間に作用する長手方向の係合力は、使用中の自己拡張チューブの導入のすべての段階で、長手方向による細長い本体に対する管状部材の引き込みでは、細長い本体と、細長い本体と係合したままである自己拡張チューブの任意の部分との間に長手方向の相対的な動きは実質的にない。
