An arteriovenous shunt assembly including a shunt and a pull wire operated flow control mechanism. The shunt has a tubular body that defines a fluid passageway between a first end and a second end thereof The pull wire mechanism includes a portion disposed around the tubular shunt in at least one loop. The at least one loop may be selectively tightened or loosened remotely from the shunt to regulate the rate of blood flow through the tubular shunt.