Title :
Relation between geometry and pump efficiency in a positive-displacement blood pump with cylindrical blood chamber and brushless DC motor
Author :
Baker, J.M. ; Gardner, J.F. ; Gaumond, R.P. ; Geselowitz, D.B. ; Snyder, A.J.
Author_Institution :
Bioeng. Program, Pennsylvania State Univ., University Park, PA, USA
Abstract :
The closed form system of equations governing a positive-displacement pump with a cylindrical fluid chamber and a brushless DC motor that relates the pump geometry to its mechanical efficiency have been determined with the use of some simplifications. The resulting system was used to predict the efficiency of the pump given specific operating conditions for different geometries and vice versa. The closed-form system that the simplifications facilitated properly predicted the trends of the efficiency over different geometries and operating conditions
Keywords :
artificial organs; brushless DC motors; cardiology; haemodynamics; pumps; artificial heart; closed-form system; cylindrical blood chamber; mechanical efficiency; operating conditions; positive-displacement blood pump; pump efficiency; pump geometry; Biomedical engineering; Blood; Brushless DC motors; DC motors; Equations; Geometry; Pumps; Torque; Valves; Voltage;
Conference_Titel :
Bioengineering Conference, 1998. Proceedings of the IEEE 24th Annual Northeast
Conference_Location :
Hershey, PA
Print_ISBN :
0-7803-4544-4
DOI :
10.1109/NEBC.1998.664894
