LUMINAL ORGAN BYPASS STENT AND STENT DELIVERY SYSTEM INCLUDING LUMINAL ORGAN BYPASS STENT

摘要

Provided is luminal organ bypass stent having a migration-preventive function. A luminal organ bypass stent (11) characterized by having: a slender cylindrical body (12) connected in the circumferential direction; and a plurality of first hooking parts (14) having a curved shape curving to the outside of the body (12) along the longitudinal direction from proximal-end parts (14b) thereof connected to a first end part (R) which is one of both end parts in the axial direction (D2) toward free distal-end parts (14a), the first hooking parts (14) being independent and not connected to each other in the circumferential direction; intermediate parts (14c) between the distal-end parts (14a) and the proximal-end parts (14b) in the first hooking parts (14) having a plurality of first portions, the length of which in a width direction orthogonal to the longitudinal direction being a first length, and at least one second portion, both sides of which in the longitudinal direction being interposed in the first portions, and the length thereof in the width direction being a second length greater than the first length.