Determination of the mechanical losses of the Penn State electrical ventricular assist device

Author

Tsui, Christopher W. ; Tsach, Uri ; Geselowitz, David B.

Author_Institution

Pennsylvania State Univ., University Park, PA, USA

fYear

1989

fDate

27-28 Mar 1989

Firstpage

67

Lastpage

68

Abstract

The Penn State electric ventricular assist device (EVAD) consists of a brushless DC electric motor, rollerscrew, pusher plate, pump chamber, and valves. The authors analyze the mechanical linkage of the EVAD and quantify the dissipated energy of the rollerscrew and the supporting bearings. Their analysis sheds further light on the physical phenomenon undertaken in transforming the rotary motion of the armature into a linear motion of the pusher plate. Understanding this phenomenon enables them to construct a better mathematical model of the device, which can be used for identifying the possible modifications that will increase the efficiency of future EVAD designs

Keywords

artificial organs; cardiology; losses; Penn State electrical ventricular assist device; bearings; brushless DC electric motor; dissipated energy; mathematical model; mechanical linkage; mechanical losses; pump chamber; pusher plate; rollerscrew; valves; Blood pressure; Bonding; DC motors; Fasteners; Friction; Mathematical model; Motion analysis; Position measurement; Spinning; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 1989., Proceedings of the 1989 Fifteenth Annual Northeast

Conference_Location

Boston, MA

Type

conf

DOI

10.1109/NEBC.1989.36701

Filename

36701