Interventional instrument for atrial septum and production method

The invention discloses an interventional instrument for atrial septum and a production method, the interventional instrument comprises a support frame, the support frame has an unfolded state and a contracted state; in the contraction state, the support frame is contracted into a slender structure; in the unfolded state, the support frame comprises a first support frame which is provided with a notch-shaped first passage; a second support frame which is provided with a second passage; and a connecting piece; the first support frame and the second support frame are oppositely arranged, the first passageand the second passage are oppositely arranged, and the two ends of the connecting piece are connected to the first support frame and the second support frame respectively. According to the invention, the support frame penetrating through the interventional instruments can be allowed to build the diaphragm penetrating passage again, the notch-shaped passages can allow the adjacent interventional instruments to