intravenous peristaltic pump, any one of several devices for administering IV fluids by exerting pressure on the IV tubing rather than on the fluid itself. Most peristaltic pumps operate with normal IV tubing and deliver fluid at a selectable cubic centimeter per hour rate. This device is equipped with a drop sensor, rate selector, power switch indicator lamp, and drop indicator and alarm. The alarm sounds when the infusion does not flow at the prescribed rate. Compare intravenous controller, intravenous syringe pump, intravenous piston pump.