To provide a defect hole closing material that achieves a low invasive treatment for an atrial septal deficiency with almost no risk of causing a problem during a remote period.SOLUTION: A defect hole closing material 100 is formed of two cylindrical bodies (a first cylindrical body 110 and a second cylindrical body 120) of net-like tissue of a bioabsorbable material, and has a sandglass type shape. The two ends are engaged with a first end part 112 and a second end part 122 respectively. A coil spring 140 is provided that is inserted into the first cylindrical part 110 and the second cylindrical part 120 from a first end part 112 side to a second end part 122 side through roughly a central part 130. An outer cylindrical body 160 is provided on the outermost layer so as to cover the whole of the two cylindrical bodies from outside. The outer cylindrical body 160 is a cylindrical body knitted of a bioabsorbable material, whose two ends are joined at the respective ends of the two cylindrical bodies.SELECTED DRAWING: Figure 4【課題】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。【解決手段】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。２つの筒体の全体を外側から覆うように最外層に外筒体１６０が設けられ、この外筒体１６０は生体吸収性材料により編まれた筒状体であってその両端が２つの筒体のそれぞれの両端で接合されている。【選択図】図４
