Abstract: A closure device, specifically an occlusion device for heart surgery procedures, e.g., transapical aortic valve implantation, comprises first and second disks (2, 3) having first and second enlarged diameter flange portions (25, 35) adapted to be placed proximate either end of an apical hole in a patient's heart wall, and first and second shoulder portions (20, 30) adapted to be placed within the apical hole near either end. A central waist portion (4) extends between the first and second disks (2, 3) along a center axis (A) of the device and is adapted to extend through the apical hole and interconnect the first and second disks (2, 3), while urging the disks (2, 3) toward one another when in the mounted condition.