Disclosed is a defect hole closing material that realizes minimally invasive treatment with little possibility of a failure in a remote stage for atrial septal defect. The defect hole closing material (100) is formed by two cylindrical bodies (first cylindrical part (110) and second cylindrical part (120)) of a stitch-like tissue of a bioabsorbable material. It has a shape of a letter, a double spindle, or a peanut shape, and both ends are engaged with the first end (112) and the second end (122), respectively, and the first end (112) A coil spring (140) passed through the inside of the first cylindrical portion (110) and the second cylindrical portion (120) from the side to the second end portion (122) side through the substantially central portion (130). Prepare. When the defect hole closing material (100) is pushed out from the catheter (300), the first cylindrical portion (110) and the second cylindrical portion (120) are centered on the substantially central portion (130) by the action of the coil spring (140). ) Approaches and the cylinder diameter is expanded.心房中隔欠損症に対して、遠隔期の不具合の可能性がほとんどない、低侵襲の治療を実現する欠損孔閉鎖材を提供する。 欠損孔閉鎖材（１００）は、生体吸収性材料の編み目状組織の２つの筒体（第１の筒部（１１０）および第２の筒部（１２０））により形成され、砂時計型、８の字型、２連の紡錘型またはピーナッツ型の形状を備え、第１の端部（１１２）と第２の端部（１２２）とにそれぞれ両端が係合され、第１の端部（１１２）側から略中央部（１３０）を介して第２の端部（１２２）側まで第１の筒部（１１０）および第２の筒部（１２０）の内部に通されたコイルばね（１４０）を備える。カテーテル（３００）から欠損孔閉鎖材（１００）を押し出すと、コイルばね（１４０）の作用により略中央部（１３０）を中心にして第１の筒部（１１０）と第２の筒部（１２０）とが接近して筒径が拡張される。
