Branch vessel stent

A branch vessel stent, comprising a stent body and a first developing member, wherein the stent body has an axial direction, is provided with a first end and a second end opposite to the first end, and comprises a bare stent;

• the first developing member is located between the first end and the second end, and close to the first end, and the first developing member comprises a first developing portion and a second developing portion, with each of the first developing portion and the second developing portion having a first end;
• the first developing portion extends along a first direction, and the second developing portion extends along a second direction;
• the first direction obliquely intersects with the second direction;
• a length of the first developing portion and a length of the second developing portion in the axial direction of the stent body are both not less than 0.5 mm;
• a distance between the intersection of the first developing portion and the second developing portion on a plane perpendicular to the axial direction of the stent body gradually increases from a position where the distance is the minimum distance to an end that is away from the first end of the first developing portion or the second developing portion;
• the minimum distance between the intersections of the first developing portion and the second developing portion on a plane perpendicular to the axial direction of the stent body is not greater than 2 mm;
• wherein the branch vessel stent further comprises a skirt-sided stent that surrounds the stent body, and the skirt-sided stent is connected to the stent body and extends toward the first end, and one end that is away from the first end and one end that is away from the first end of the first developing portion and the second developing portion is located at a joint portion of the skirt-sided stent and the stent body;
• and
• wherein the skirt-sided stent comprises a flexible section and a folding section connected with the flexible section, and the flexible section is connected with the stent body;
• a distance from one end that is away from the first end of the first developing portion or the second developing portion, to the position where the distance between the intersections of the first developing portion and the second developing portion on the plane perpendicular to the axial direction of the stent body is the minimum distance, is equal to the length of a contour line of the flexible section.