By placing the tip first, then tunneling back to the exit site, retrograde insertion helps deliver optimal tip placement, high flow rates and safe, reliable extended use.1
In particular, retrograde insertion:
1. DaVanzo, W. "Efficacy and Safety of a Retrograde-Tunneled Hemodialysis Catheter—6-Month Clinical Experience With the Cannon Chronic Hemodialysis Catheter." Journal of Vascular Access, January - March 2005, Vol. 6, Issue 1, pp. 38–44.