Features & Benefits

The Centros (without side holes) and the CentrosFLO™ (with side holes) long-term hemodialysis 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 up to 450 mL/minute.


Preshaped Curved Tips stabilize and center the catheter in the junction of the Superior Vena Cava (SVC) and Right Atrium (RA).

Distal Venous and Arterial Side Holes reduce intraluminal pressure and the likelihood of the catheter tips sucking up against the vessel wall.

Large Internal Lumen allows for a flow rate up to 450 mL/min.

Centered on Performance

The high performance CentrosFLO® long-term hemodialysis catheter from Merit Medical was designed with performance, safety, and ease of use in mind. The new SELF-CENTERING, curved-tip catheter has a greater separation between the arterial and venous tips. Its design is intended to optimize CATHETER PATENCY, and reduce fibrin sheath formation, thrombosis and vessel wall occlusions by keeping the tips of the catheter centered in the vessel and away from the vessel wall. Fibrin sheaths are a frequent cause of catheter malfunction and in a study of removed or exchanged hemodialysis catheters, 76% had fibrin sheaths.1,2,3 The CentrosFLO was designed for PERFORMANCE, SAFETY AND EASE OF USE.


Atraumatic Catheter Tip Design minimizes puncture or irritation of vessel walls.

Non-Traumatic Tunneler for more rapid loading of the catheter without risk to catheter tips.

Multiple Catheter Length Configurations accommodate variations in patient anatomy.

Ease of Use

Peelaway Sheath and Dilator insertion for initial placement.

Stiffening Stylet for over-the-wire placement and exchange.

Polyurethane Material provides ease of insertion and maintenance.

Study Results

A recent retrospective study conducted by Dr. Sarvan Balamuthusamy compared the performance of the self-centering split-tip hemodialysis tunneled catheter and the symmetric tip catheter. The results indicated that the self-centering split-tip catheter had statistically greater patency after 3 months with a slight advantage in clearance and blood flow.4
Centros Chart
1 Mean value during the three-month follow-up period
2 Mean clearance and mean blood flow did not include data from the patients with no catheter patency.
3 NSD = Not Statistically Significant, p > 0.05 (t-tests)
1  Crain, MR, Horton, MG, Mewissen, MV. Fibrin sheaths complicating central venous catheters. AJR.1998 Aug;171:341-346.
2  Forauer AR, Theoharis GA, Dasika NL. Jugular vein catheter placement: histologic features and development of catheter-related (fibrin) sheaths in a swine model. Radiol. 2006 Aug;240(2)427-434.
3  Alomari, AI, Falk, A. The natural history of tunneled hemodialysis catheters removed or exchanged: a single-institution experience. JVIR. 2007;18:227-235.
4  Balamuthusamy S. Self-centering, split-tip catheter has better patency than symmetric-tip tunneled hemodialysis catheter: single-center retrospective analysis. Semin Dial. 2014 Jan 20. Epub 2014 Jan 20.
Carbothane® is a registered trademark of Lubrizol Advanced Materials, Inc.
Ordering Information

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Catalog NumberFrench Size (F)Split TipCatheter Length Tip to Hub(cm)Catheter Length Tip-Cuff (cm)Side HolesPackaging ConfigurationGuide Wire StyletHCPCS CodeGS1GTIN UnitGTIN CartonGTIN Shipper
CENFP15C15FYes20 cm15 cmSide HolesCatheter OnlyYesC1750, C1892, C176919043008844501904321088445019043920884450190436
CENFP17C15FYes22 cm17 cmSide HolesCatheter OnlyYesC1750, C1892, C176919988008844501998861088445019988320884450199880
CENFP19C15FYes24 cm19 cmSide HolesCatheter OnlyYesC1750, C1892, C176919990008844501999091088445019990620884450199903
CENFP19K15FYes24 cm19 cmSide HolesComplete KitYesC1750, C1892, C176920001008844502000181088445020001520884450200012
CENFP23C15FYes28 cm23 cmSide HolesCatheter OnlyYesC1750, C1892, C176919991008844501999161088445019991320884450199910
CENFP23K15FYes28 cm23 cmSide HolesComplete KitYesC1750, C1892, C176920002008844502000251088445020002220884450200029
CENFP27C15FYes32 cm27 cmSide HolesCatheter OnlyYesC1750, C1892, C176919995008844501999541088445019995120884450199958
CENFP27K15FYes32 cm27 cmSide HolesComplete KitYesC1750, C1892, C176920005008844502000561088445020005320884450200050
CENFP31C15FYes36 cm31 cmSide HolesCatheter OnlyYesC1750, C1892, C176919997008844501999781088445019997520884450199972
CENFP31K15FYes36 cm31 cmSide HolesComplete KitYesC1750, C1892, C176920006008844502000631088445020006020884450200067
CENP15C15FYes20 cm15 cmNo Side HolesCatheter OnlyYesC1750, C1892, C176924207008844502420701088445024207720884450242074
CENP17C15FYes22 cm17 cmNo Side HolesCatheter OnlyYesC1750, C1892, C176924206008844502420631088445024206020884450242067
CENP19C15FYes24 cm19 cmNo Side HolesCatheter OnlyYesC1750, C1892, C176924205008844502420561088445024205320884450242050
CENP23C15FYes28 cm23 cmNo Side HolesCatheter OnlyYesC1750, C1892, C176924204008844502420491088445024204620884450242043
CENP27C15FYes32 cm27 cmNo Side HolesCatheter OnlyYesC1750, C1892, C176924203008844502420321088445024203920884450242036
CENP31C15FYes36 cm31 cmNo Side HolesCatheter OnlyYesC1750, C1892, C176924201008844502420181088445024201520884450242012