Importance

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Abstract

Provided is a defect hole closing material that has almost no fear of long-term failure and allows minimally invasive treatment for an atrial septal defect. The defect hole closing material is formed of two tubular bodies (a first tubular part and a second tubular par) having a stitch-like structure of a bioabsorbable material, has a sandglass shape, figure-of-eight shape, double spindle shape, or peanut shape, and includes a coil spring of which both ends are respectively engaged with a first end part and a second end part and that is passed through the insides of the first tubular part and the second tubular part from the first end part side to the second end part side via a substantially middle part. When pushing the defect hole closing material out of a catheter, the action of the coil spring causes the first tubular part and the second tubular part to come close with the substantially middle part as a center and expand tube diameters.

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First Claim