Flushing and Locking of Venous Catheters: Available Evidence and Evidence Deficit

Table 3

Examples of corresponding internal and outer diameters in different types of single lumen catheters.

	Internal diameter in mm
	0.5	0.6	0.7	0.8	0.9	1	1.1	1.2	1.3	1.4	1.5	1.6
Outer diameter in French
Ports, PUR catheters, BBraun				4.5			5			6.5		8.5
Ports, Chronoflex CRBard								6			8.5
Ports, Silicone catheters, BBraun						6.5	8.5					10
PICC, PowerPICC CRBard						4
Tunneled catheter, Hickman CRBard	2.7		4.2			6.6						9.6