The Centros (without side holes) and the CentrosFLO™ (with side holes) long-term dialysis catheters feature self-centering curved tips which automatically center the catheter ports within the middle of the vessel to maintain optimal blood flow and minimal recirculation rates, and enhance overall catheter performance. Designed by Dr. Stephen Ash, the 15F catheters feature a large internal lumen which allows for a flow rate of 450 mL/minute.