Description:Under Investigation. El U.S.: WATCHMAN (FDA approved), AMULET (RCT). OUS : WATCHMAN. Amplatzer Amulet. Life Tech. Occlute ch. Prolipsis. Cardia WATCHMAN LAA Occlude r Vivek Y. Reddy, MD; Horst Sievert, MD; Jonathan Halperin, MD; Shephal K. Doshi, MD; Maurice Buchbinder, MD;.