A vascular closure device comprised of a sheath-delivered expandable, umbrella-like device with structural radial members with terminal and non-terminal hooks that engage the vessel wall. Unlike other vascular closure umbrella-type devices that effect closure by opening of the umbrella to cover an opening,...http://www.google.de/patents/US8048108?utm_source=gb-gplus-sharePatent US8048108 - Vascular closure methods and apparatuses
