INTRAVASCULAR INTERVENTION DEVICE

Provided is an intravascular intervention device, comprising a support member (1) and an elongated control member (2), wherein the support member (1) comprises a support main body (11) and a neck portion (12) located at the proximal side of the support main body (11), and the support main body (11) converges at the neck portion (12); the neck portion (12) is provided with a front surface and a back surface opposite to each other; a hole (13) penetrating through the front surface and the back surface is formed in the neck portion (12); the distal end portion of the elongated control member (2) comprises an engagement portion engaged with the neck portion (12) of the support member (1); the engagement portion comprises a first segment, a second segment, and a third segment connecting the first segment and the second segment; the third segment extends through the hole (13), and the first segment and the second segment extend in the proximal side direction from the hole (13) on the front surface and the back surf