Left Atrial Appendage Closure Device

Introducing WATCHMAN FLXTM, the next generation LAA closure device, built from a clinically proven platform* to expand your treatment options

Key Resources

Calculate Your AF Patient's Stroke Risk Find Implanting Center

Product Details

Device Overview

The WATCHMAN FLX™ LAAC Device offers a new stroke risk reduction option for patients with non-valvular atrial fibrillation who are seeking an alternative to long-term warfarin therapy.



Stroke Risk Management

Atrial fibrillation (AF) is the irregular, chaotic beating of the upper chambers of the heart. Electrical impulses discharge so rapidly that the atrial muscle quivers or fibrillates.

In patients with atrial fibrillation, blood tends to pool and form clots in an area of the heart called the left atrial appendage (LAA), a thin, sack-like appendix located in the upper left chamber of the heart. A blood clot that breaks loose from this area may migrate through the blood vessels and eventually plug a smaller vessel in the brain or heart resulting in a stroke or heart attack. In nonvalvular AF, over 90% of stroke-causing clots that come from the heart are formed in the LAA.

The WATCHMAN FLX™ Left Atrial Appendage Closure (LAAC) Device provides an implant-based option for patients who need protection from non-valvular AF-related stroke.

The WATCHMAN FLX™ LAA Closure Technology is intended to prevent thrombus embolization from the left atrial appendage and reduce the risk of life-threatening bleeding events in patients with nonvalvular atrial fibrillation who are eligible for anticoagulation therapy or who have a contraindication to anticoagulation therapy.1

WATCHMAN Implanting Centers

If you have a patient who may be a candidate for receiving the WATCHMAN Device, use this tool to find a trained implanter in your area.

Patient Experiences

Hear AF patients discuss how the WATCHMAN Device has changed their lives.

Physician Experiences

Dr. Vivek Reddy describes how the WATCHMAN Device impacts his AF patients.

History of Clinical Leadership