Systems and methods reduce the effective volume of an atrial appendage by deploying first and second devices into the atrium. The first device carries a first element to affect positioning of the tissue surface in a repositioned orientation. The second device carries a second element to affix the tissue...http://www.google.de/patents/US5865791?utm_source=gb-gplus-sharePatent US5865791 - Atrial appendage stasis reduction procedure and devices