Abstract: An in-tube transit object that is inserted in a tube includes: a coil section formed by winding a wire; and a fiber section attached to an end on one side and an end on the other side in a winding-axis direction of the coil section. The coil section is formed with a large diameter section, through which fiber of the fiber section is inserted, at the end on the one side and the end on the other side, and is inserted in an extending state in the winding-axis direction when the in-tube transit object is inserted into the tube. The fiber section is configured to expand when seen in the winding-axis direction in the case where the in-tube transit object is inserted in the tube and then discharged from the tube, which brings the coil section into a compressed state in the winding-axis direction.

Abstract: A hole closing material achieves less invasive treatment for atrial septal defect with no or little possibility of problems in the late post-treatment period. The hole closing material includes two tubular bodies (first tubular portion and second tubular portion) having a mesh structure formed of a bioabsorbable linear material, and includes: a proximal connecting part connected to a first end; and a distal connecting part connected to a second end and screwed to a delivery cable. The proximal connecting part and the distal connecting part are capable of selectively achieving: “locked” in which the proximal connecting part and the distal connecting part remain united; and “unlocked” in which the proximal connecting part and the distal connecting part do not remain united. The delivery cable passes through the substantially middle portion, is inserted into a hollow tube of the proximal connecting part, and passes out of the hole closing material in a direction from the second end to the first end.

Abstract: A defect hole closing material achieves less invasive treatment for atrial septal defect with no or little possibility of problems in the late post-treatment period. A defect hole closing material includes two tubular bodies (a first tubular portion and a second tubular portion) made of a bioabsorbable material and having a mesh structure; and a substantially middle portion between the two tubular bodies. The first tubular portion is provided with a radiopaque material, the second tubular portion is provided with a radiopaque material, and the substantially middle portion is provided with a radiopaque material.

Abstract: A defect hole closing material achieves low invasive treatment for an atrial septal defect with almost no fear of long-term failure. The defect hole closing material is formed by two cylindrical bodies (a first cylinder part and a second cylinder part) having stitch-like structures of a bioabsorbable material, has a sandglass shape, and includes a coil spring both ends of which are respectively engaged with a first end part and a second end part and is passed through inner parts of the first cylinder part and the second cylinder part from a side of the first end part to a side of the second end part via a substantially central part. An outer cylindrical body is provided at an outermost layer so as to cover a whole of the two cylindrical bodies from an outer side, the outer cylindrical body is a cylinder-shaped body obtained by knitting a bioabsorbable material, and both ends thereof are respectively joined to both ends of the two cylindrical bodies.

Abstract: An in-tube transit object that is inserted in a tube includes: a coil section formed by winding a wire; and a fiber section attached to an end on one side and an end on the other side in a winding-axis direction of the coil section. The coil section is formed with a large diameter section, through which fiber of the fiber section is inserted, at the end on the one side and the end on the other side, and is inserted in an extending state in the winding-axis direction when the in-tube transit object is inserted into the tube. The fiber section is configured to expand when seen in the winding-axis direction in the case where the in-tube transit object is inserted in the tube and then discharged from the tube, which brings the coil section into a compressed state in the winding-axis direction.

Abstract: A defect hole closing material achieves low invasive treatment for an atrial septal defect with almost no fear of long-term failure. The defect hole closing material is formed by two cylindrical bodies (a first cylinder part and a second cylinder part) made of a bioabsorbable material and having stitch-like structures, has a sandglass shape, and includes a coil spring both ends of which are respectively engaged with a first end part and a second end part and that is inserted through inner parts of the first cylinder part and the second cylinder part from the first end part side to the second end part side via a substantially central part.