1.Development and progress of the insulin pump
Weijun YI ; Luyun ZHU ; Yunzhang LUO ; Jianfeng LU ; Wei YU ; Fengtao JIA
Chinese Medical Equipment Journal 2004;0(07):-
Insulin pumps go by the name of the second revolution of treatment for diabetes. The result of DCCT publicized in 1993, insulin pumps have been popularized in the world, including China. This article introduces such about insulin pumps as its history, actuality, development trend, advantages and disadvantages.
2.Research on flow characteristics in a non-blade centrifugal blood pump based on CFD technology.
Yunzhang CHENG ; Binhai LUO ; Wenquan WU ; Lei JIANG
Journal of Biomedical Engineering 2010;27(5):1133-1137
The problem of thrombus and hemolysis in blood pump has always been an important topic to study in the development of the blood pump. Numbers of research results show that it is the complicated flow and the high shear stress of the mechanical movement that result in the thrombus and hemolysis. In this study, with the cooperation of Shanghai Children's Medical Center, we have used computational fluid dynamics (CFD) commercial software FLUENT to compute and analyze the flow characteristics in a non-blade centrifugal blood pump. The results figure out that this pump has a reasonable flow distribution and the shear stress distribution is under the critical broken state of red blood cell; meanwhile, there is less thrombus and hemolysis in this pump. So it is in the foreground for clinical use.
Computer Simulation
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Heart Defects, Congenital
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therapy
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Heart-Assist Devices
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adverse effects
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Hemodynamics
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Hemolysis
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Hemorheology
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Humans
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Models, Theoretical
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Stress, Mechanical
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Thrombosis
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prevention & control