A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway...http://www.google.ca/patents/US7717937?utm_source=gb-gplus-sharePatent US7717937 - Closure devices, related delivery methods and tools, and related methods of use