Bio-Pump^® Plus Centrifugal Blood Pump

There's Still Only One Bio-Pump^®

Outlet Design Reduces Shear and Hemolysis

Vertical Profile

The Bio-Pump^® Plus outlet opening design was created and evaluated using trillions of calculations governing fluid flow. The result is a vertical cutwater outlet design for the Bio-Pump^® Plus that reduces shear by an estimated 40 percent and reduces hemolysis by 20 percent.¹ This design defies conventional theory that circular outlets are more conducive to blood flow.

Curved Profile

CFD analysis identified the curved outlet opening used in the original Bio-Pump^®, and competitive designs, as an area of recirculation and shear stress that can contribute to cellular trauma.

This video clip shows the flow through the vertical profile outlet of the Bio-Pump^® Plus and compares CFD analysis of the curved profile and the vertical profile designs.

If you cannot view video, download Quicktime.

Bio-Pump^® Plus Blood Pump
Gold-Standard Features and Benefits

Gentle Blood Handling²

• Decreased platelet activation and better platelet preservation
• Reduced complement activation
• Reduced use of blood products
• Patented Vertical Cutwater Outlet Design,
  (when compared to former, standard-setting design)
  • Reduces shear in the cutwater region
  • Reduces hemolysis by 20% overall

Reduced Postoperative Complications²

• Decreased pulmonary complications
• Less microemboli generation
• Reduced neurological deficits
• Meta-analysis confirms improved clinical outcomes and lower overall patient costs

High Margin of Safety

• Smooth vortex cone design provides superior micro air retention³ when compared to impeller centrifugal pump designs. Recent in-house testing indicates a ten times greater air retention 61/mn.¹ Effective air retention means less air passes through the pump outlet and downstream towards the patient
• Flow ceases with draining of venous reservoir preventing passage of gross air thanks to pre-load sensitivity
• Pressure sensitivity greatly reduces the risk of tubing circuit disruption, providing greater patient safety, and perfusion peace of mind
• Pressure sensitivity also allows more gradual, physiological response to pressure changes

Proven Reliability

• Robust double-lip seal design adds sealing integrity, reduces air volume in bearing chamber and resists moisture ingress
• Polycarbonate outer housing and inlet/outlet ports provide increased strength and resistance to alcohol and other chemicals to minimize risk of breakage

Available in Carmeda^® BioActive Surface and Trillium^® BioSurface models as part of our tip to tip biosurface capabilities.

References

1. Data on file at Medtronic Perfusion Systems.
2. Meta-analysis data on file at Medtronic Perfusion Systems.
3. Pederson TH, Karlsen HM, An In Vitro Study of the New Medtronic BioMedicus BPX80 Centrifugal Pump with respect to The Handling Micro-Gas bubbles. A technical report by Medisnske Teknisk Sikkerhetskonstroll, Oslo, Norway, January 21, 1998.