The PowerFlow Implantable Apheresis IV Port is a high-flow, power-injectable port designed and indicated specifically for therapeutic apheresis. The port connects to a small flexible tube, called a catheter, and is inserted into a vein. A special needle with a catheter (called an IV catheter) is inserted into the funnel of the port so that blood can be withdrawn, and medicines can be delivered. Learn how to access and de-access a PowerFlow Port.