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

fYear

1998

fDate

9-10 Apr 1998

Firstpage

112

Lastpage

114

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 1998. Proceedings of the IEEE 24th Annual Northeast

Conference_Location

Hershey, PA

Print_ISBN

0-7803-4544-4

Type

conf

DOI

10.1109/NEBC.1998.664894

Filename

664894