A preliminary flow visualization study in a multiple disk centrifugal artificial ventricle. Academic Article

abstract

• Flow patterns in a multiple disk centrifugal pump were analyzed so that the device could be incorporated as a ventricular assist or a bridge-to-transplant device. The pump operates either in pulsatile or steady flow modes with the ability to change modes within a fraction of a second. The pump was tested on a mock circulatory system consisting of an arterial fluid capacitor, a systemic resistor, and a venous capacitor. Arterial volume flow rate, arterial pressure, inlet (venous) pressure, and pump rotation speed are continually monitored. A glycerin/water solution is used as a blood analog. Flow visualization was performed with a 3 mW yellow laser, sheet lens, neutrally buoyant amberlite particles, and both still and motion picture photography. Flow patterns matched theoretical predictions very well; inlet flow spread radially outward through the disk annular spaces while propelled by shear and centrifugal forces.

authors

• Fink, Rainer

author list (cited authors)

• Miller, G. E., Madigan, M., & Fink, R

citation count

• 13

complete list of authors

• Miller, GE||Madigan, M||Fink, R

publication date

• January 1995

publisher

• Wiley  Publisher

published in

• Artificial Organs  Journal

keywords

• Blood Cells
• Blood Flow Velocity
• Blood Pressure
• Equipment Design
• Heart, Artificial
• Heart-Assist Devices
• Lasers
• Microspheres
• Pulsatile Flow
• Rotation
• Stress, Mechanical
• Videotape Recording

Digital Object Identifier (DOI)

• 10.1111/j.1525-1594.1995.tb02402.x

start page

• 680

end page

• 684

volume

• 19

issue

• 7

URL

• http%3A%2F%2Fdx.doi.org%2F10.1111%2Fj.1525-1594.1995.tb02402.x