Numerical study on the impeller of an axial flow blood pump

2011 ◽  
Author(s):  
Leok Poh Chua ◽  
Boyang Su
Keyword(s):  
Numerical Study ◽  
Axial Flow ◽  
Blood Pump ◽  
Axial Flow Blood Pump

Five Month Survival in a Calf Supported With an Intraventricular Axial Flow Blood Pump

ASAIO Journal ◽  
1995 ◽  
Vol 41 (3) ◽  
pp. M333-M336 ◽  
Author(s):  
Steven M. Parnis ◽  
Michael P. Macris ◽  
Robert Jarvik ◽  
John L. Robinson ◽  
Jeffrey W. Kolff ◽  
...  
Keyword(s):  
Axial Flow ◽  
Blood Pump ◽  
Axial Flow Blood Pump

Induction of Ventricular Collapse by an Axial Flow Blood Pump

ASAIO Journal ◽  
1998 ◽  
Vol 44 (5) ◽  
pp. M685-M690 ◽  
Author(s):  
Devin V. Amin ◽  
James F. Antaki ◽  
Philip Litwak ◽  
Douglas Thomas ◽  
Zhongjun J. Wu ◽  
...  
Keyword(s):  
Axial Flow ◽  
Blood Pump ◽  
Axial Flow Blood Pump

A Miniature Intraventricular Axial Flow Blood Pump That is Introduced Through the Left Ventricular Apex

ASAIO Journal ◽  
1992 ◽  
Vol 38 (3) ◽  
pp. M679-M683 ◽  
Author(s):  
KENJI YAMAZAKI ◽  
MITUO UMEZU ◽  
HITOSHI KOYANAGI ◽  
MASAYA KITAMURA ◽  
KIYOYUKI EISHI ◽  
...  
Keyword(s):  
Axial Flow ◽  
Left Ventricular ◽  
Blood Pump ◽  
Left Ventricular Apex ◽  
Axial Flow Blood Pump

Proposal of hemodynamically improved design of an axial flow blood pump for LVAD

2019 ◽  
Vol 58 (2) ◽  
pp. 401-418
Author(s):  
Vikas Kannojiya ◽  
Arup Kumar Das ◽  
Prasanta Kumar Das
Keyword(s):  
Axial Flow ◽  
Blood Pump ◽  
Axial Flow Blood Pump ◽  
Improved Design

In Vivo Evaluation of an Intraventricular Axial Flow Blood Pump

1998 ◽  
pp. 396-400 ◽  
Author(s):  
Kenji Yamazaki ◽  
Robert L. Kormos ◽  
Osamu Tagusari ◽  
Philip Litwak ◽  
Toshio Mori ◽  
...  
Keyword(s):  
Axial Flow ◽  
Blood Pump ◽  
In Vivo Evaluation ◽  
Axial Flow Blood Pump

In Vitro Performance of a Centrifugal, a Mixed Flow, and an Axial Flow Blood Pump

1998 ◽  
Vol 22 (5) ◽  
pp. 366-370 ◽  
Author(s):  
Kenji Araki ◽  
Hirofumi Anai ◽  
Mitsuo Oshikawa ◽  
Kunihide Nakamura ◽  
Toshio Onitsuka
Keyword(s):  
Axial Flow ◽  
Blood Pump ◽  
Mixed Flow ◽  
Axial Flow Blood Pump ◽  
In Vitro Performance

scholarly journals Multi-parameter analysis of the effects on hydraulic performance and hemolysis of blood pump splitter blades

2020 ◽  
Vol 12 (5) ◽  
pp. 168781402092129
Author(s):  
Zheqin Yu ◽  
Jianping Tan ◽  
Shuai Wang
Keyword(s):  
Flow Field ◽  
Axial Length ◽  
Axial Flow ◽  
Hydraulic Performance ◽  
Parameter Analysis ◽  
Blood Pump ◽  
Computational Fluid Mechanics ◽  
Structural Improvement ◽  
Axial Flow Blood Pump ◽  
And Performance

The splitter blade can effectively optimize pump performance, but there is still insufficient research in blood pumps that cover both hydraulic and hemolysis performance. Thus, the aim of this study was to investigate the effect of key factors related to splitter blade on the performance and flow field of axial flow blood pump. In this study, the number of splitter blades, the axial length, and the circumferential offset were chosen as three objects of study. An analysis of the flow field and performance of the pump by orthogonal array design using computational fluid mechanics was carried out. A set of hydraulic and particle image velocimetry experiments of the model pumps were performed. The result showed that the pump had greater hydraulic performance without sacrificing its hemolytic performance when it had two splitter blades, the axial length ratio was 0.6, and the circumferential offset was 15°. Based on these reference data, the splitter blade may contribute to greater hydraulic performance of the pump and cause no side effect on the velocity distribution of the flow field. This finding provides an effective method for the research, development, and application of structural improvement of the axial flow blood pump.

AXIAL-FLOW BLOOD PUMP ACCELERATION CONTROL METHOD BASED ON A START-UP PROCESS DYNAMIC MODEL

2017 ◽  
Vol 41 (5) ◽  
pp. 691-705
Author(s):  
Xu Yan ◽  
Pang Youxia ◽  
Cheng Lizhi ◽  
Liang Liang
Keyword(s):  
Dynamic Model ◽  
Control Method ◽  
Axial Flow ◽  
Test System ◽  
Blood Pump ◽  
Theoretical Simulation ◽  
Process Dynamic ◽  
Axial Flow Blood Pump ◽  
Start Up ◽  
Set Up

The principle of a large gap magnetic drive system was used to achieve control of an axial-flow blood pump. A dynamic model of the start-up process of the axial-flow blood pump was established. It was analyzed and simulated. An acceleration control method for the blood pump was proposed based on the start-up process dynamic model. A corresponding parameter measurement test system was set up, and experimental data were compared with the results of the theoretical simulation. Results indicated that the experimental values obtained for the blood pump outlet pressure and flow rate changed similarly with the values obtained using theoretical simulation. These changes occurred simultaneously with the change in speed of the blood pump over time, and the driving control target value was reached within 4 seconds.

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