A release assembly is provided to aid the reversible and repositionable deployment of a defect occluder. The release assembly includes an occluder tether having a distal portion comprising at least one suture loop, and a snare structure having a distal portion comprising a snare element. The at least...http://www.google.com.au/patents/US20020198563?utm_source=gb-gplus-sharePatent US20020198563 - Defect occluder release assembly & method