The demarcation point (or demarc or Network Interface Device (NID) for short) serves several purposes: â¢It is the point that defines the end of the telephone company's wiring, and the beginning of your wiring. â¢It defines where the telephone company's responsibility for maintenance ends, and your responsibility begins.
This device helps your heart pump blood to the rest of the body. What is a Left Ventricular Assist Device (LVAD)? A left ventricular assist device is a small pump that helps circulate your blood when your heart becomes too weak to do its job effectively. The pump enables your heart to pump more blood with less work.
The Watchman device is like an expandable umbrella that closes this area of the heart and allows these patients to be off of blood thinning medication. The Watchman Device Implant is designed to keep harmful blood clots from the left atrial appendage from entering your blood stream and potentially causing a stroke.