The Amplatzer occlusion devices are designed to occlude, or "close," certain types of heart defects. These defects include Atrial Septal Defect (ASD) and Patent Ductus Arteriosus (PDA). These devices offer an alternative to invasive surgical procedures.
Amplatzer® Septal Occluder is FDA approved for transcatheter closure of secundum atrial septal defects and fenestrations after Fontan operations. It is a specialized device woven from specially heat-treated nickel-titanium wires. This alloy is extremely flexible, resistant to corrosion and fatigue-resistant. Another important property of this alloy is its super-elasticity. In order to increase its closing ability, the discs are filled with polyester fabric. An Amplatzer device can be compressed into a tiny tube for delivery. When the doctor releases it at the end of the tube, it springs open, returning to its original shape. As the device expands outward, it clamps the defect.
Amplatzer® Duct Occluder is FDA approved for transcatheter closure of a patent ductus arteriosus. This device is made from the same nickel-titanium wires and polyester fabric.