Nit-Occlud® PFO The Nitinol occluder Nit-Occlud® PFO was specially developed for the closure of the congenital heart defect PFO Special umbrella shape: The occluder consists of a right atrial double disc and a left atrial single disc. The reduced nitinol content in the LA reduces the thrombo-embolic risk. Different sizes: 20 mm, 26 mm and 30 mm. Simple handling: The delivery system has been specifically designed for Nit-Occlud® PFO Patented single-wire design: No protruding clips and therefore a very flat profile Atraumatic margins Download product catalog Do you have questions about this product? We are looking forward to your message.