Device for treating aortic dissection

The stent assembly (42) which suited so that it might inner-腔設置 by intravascular deployment for the medical treatment of 偽腔 (10) relevant to blood vessel dissociation. Both stent assemblies have many self-extending stents (35) for being connected and 画成 (ing) the long and slender lumen wall engagement face of approximately cylindrical shape. A stent adjoins a burst, and it suits so that pressure may be given to the wall of the lumen which separates from there and is prolonged. The deployment equipment for stent assemblies (40) includes the maintenance for holding the proximal end (37) of a stent graft, and open arrangement (50) in a sheath (48) and deployment equipment. The trigger wire (54) of maintenance and open arrangement is used, and opening of a stent assembly is performed by drawing out a sheath in advance of opening of the proximal end.