CentriMag
TM
Circulatory Support System Operation Manual (US)
Page 29 of 126
© 2019 Abbott – Document No PL-0047, Rev 11 (December 2019)
5.1.6 CentriMag
TM
and PediMag
TM
Blood Pumps
The System uses a sterile, single-use, disposable, polycarbonate, CentriMag
TM
or
PediMag
TM
Pump (
Figure 13 a and b
). The use of magnetic levitation eliminates the need
for bearings and seals in the blood pathway. Elimination of these components is designed
to minimize blood trauma and the potential for hemolysis and thrombus formation. The
Pumps are designed to move blood by centrifugal force created by the magnetically-
suspended rotating impeller.
Figure 13: a) CentriMag Pump
b) PediMag Pump
The blood flow is dependent upon the amount of blood entering the Pump, the Pump
speed (RPM), the extracorporeal circuit resistance, and drainage and return blood
pressures. The relationship between pressure and flow rate as a function of RPM can be
seen in
for the CentriMag Pump as an isolated component.
Figure 14: CentriMag
TM
Pump Differential Pressure/Flow (H-Q) Curve
Refer to the CentriMag and PediMag pump IFUs for additional information.