This is an artificial occlusion kit for implanting and retaining an artificial occlusion device in a body space adjacent to and extending from a body lumen in a mammal. The includes at least one occlusion device and a retaining device for blocking the migration of the occlusion device out of the occlusion...http://www.google.se/patents/US6168592?utm_source=gb-gplus-sharePatent US6168592 - Aneurysm closure device assembly