GROOVED STENT

A grooved stent (100), wherein support units (33) are provided on two sides of a mesh region (30); the support units (33) can move relative to the mesh region (30) so as to achieve a certain force buffering effect when under pressure; and there are gaps between the support units (33) and the mesh region (30) to provide space for deformation when under pressure, which can provide a better buffering effect and better maintain the overall shape of a bottom support sheet (3). Further provided is a grooved stent (100), wherein the radial size of the end of the axial edge of the bottom support sheet (3) close to a groove (5) is less than the maximum radial size of the bottom support sheet (3), which is conducive to formation of a structure for directing towards a branch port. L'invention concerne un stent rainuré (100), dans lequel des unités de support (33) sont disposées sur deux côtés d'une région de maille (30) ; les unités de support (33) peuvent se déplacer par rapport à la région de maille (30) de façon à ob