This site is designed for educational purposes only and is not engaged in rendering medical advice or professional services.  The WATCHMAN® Left Atrial Appendage System is not for sale to the general public and is only available through approved clinical trial sites.  The System has not been approved for general use by the U.S. Food and Drug Administration (FDA).  All patients must be screened according to the Clinical Protocol and must sign the approved patient consent form prior to participation in the WATCHMAN® Clinical Trial.  Nothing herein is intended to modify or amend the patient consent form executed between participants or the related Clinical Protocol.