Insertion device of the same stent and self-expanding parallel flow forming intravascular stent non-deformable

摘要

(57) [summary] The present invention also provides self-expanding stent device non-deformable (10), and the deployment catheter for (10) in the stent device. A wire elongated member (14), a plurality of respectively formed wire member (14) on to form the straight portion of the plurality forming a parallel (14) the same wire members stent device (10) I have a front and rear curved portion curved portion. Ends of the plurality of wire members (14) are coupled together to form a cylindrical array around the axis of the plural linear portions extending in the longitudinal direction. (14) is disposed in the first operation mode stent. In operation mode, the stent forms a substantially parallel to each other a plurality of straight lines and having a first inner diameter. Contracted configuration to be compressed or bent (14) stent. In retracted configuration, outer diameter smaller than the inner diameter of the first stent in the operation mode, namely the stent has a cross-sectional outer diameter. (14) is formed of an elastic material, the stent. As a result, the stent self-expands automatically to the mode of operation and is biased so as to form a mode of operation. Catheter body having an elongated (32) (30) preferred the deployment catheter. (32) has a (38) balloon attached to (32) on the catheter body catheter body. (14) is contracted or folded in a retracted configuration and are positioned deflated balloon (38) on the stent. (40) is positioned around the stent (14) breakable holding sheath or one to hold the balloon in the contracted configuration (40) on (14) stent.