NIBP stand for Non-Invasive Blood Pressure. Its a feature common in a lot of patient monitors in the hospital where you can check the patient's blood pressure either by a cuff on the arm, or the leg. Its different from the regular blood pressure where they pump the cuff up by a small bulb. This means is done by electric driven motor which pumps up the cuff, and then deflates it. NIBP can be set to take a blood pressure at timed intervals.