The Watchman, or the left atrial appendage closure implant, is the size of a quarter and closes off this part of the heart where blood clots are formed.
During the Watchman Implant procedure, your doctor will make a small incision in your leg and insert a narrow tube. The Watchman will be guided through the tube and placed into your left atrial appendage. Heart tissue will grow over the implant to form a barrier against blood clots over time and the left atrial appendage will eventually close permanently.