COMPARATIVE STUDY OF RIGID VS FLEXIBLE PNEUMATIC ARTIFICIAL BLOOD PUMPS

The 70cc LionHeart was developed for use in patients weighing more than 70 kg, which prevents its use in many women, smaller men, and children. Scaled-down devices have been prone to thrombus formation during animal testing [1, 2]. It is suspected that the increased level of thrombosis is related to changes in the flow field when scaling from the 70cc to the 50cc device. Low fluid shear stresses and high residence times are traits that are believed to influence thrombus formation and deposition within artificial blood pumps [1].

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The Status of Failure and Reliability Testing of Artificial Blood Pumps

ASAIO Journal ◽

10.1097/01.mat.0000169083.90253.3c ◽

2005 ◽

Vol 51 (4) ◽

pp. 440-451 ◽

Cited By ~ 11

Author(s):

Sonna M. Patel ◽

Amy L. Throckmorton ◽

Alexandrina Untaroiu ◽

Paul E. Allaire ◽

Houston G. Wood ◽

...

Keyword(s):

Reliability Testing ◽

Artificial Blood ◽

Blood Pumps ◽

The Status

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EXPERIMENTAL FLUID MECHANICS OF PULSATILE ARTIFICIAL BLOOD PUMPS

Annual Review of Fluid Mechanics ◽

10.1146/annurev.fluid.38.050304.092022 ◽

2006 ◽

Vol 38 (1) ◽

pp. 65-86 ◽

Cited By ~ 75

Author(s):

Steven Deutsch ◽

John M. Tarbell ◽

Keefe B. Manning ◽

Gerson Rosenberg ◽

Arnold A. Fontaine

Keyword(s):

Fluid Mechanics ◽

Artificial Blood ◽

Experimental Fluid Mechanics ◽

Blood Pumps ◽

Experimental Fluid

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Particle Tracking Computational Prediction of Hemolysis by Blade of Micro-Axial Blood Pump

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.160-162.1779 ◽

2010 ◽

Vol 160-162 ◽

pp. 1779-1786

Author(s):

Xin Chen ◽

Jian Ping Tan ◽

Zhong Yun

Keyword(s):

Blood Flow ◽

Fluid Dynamic ◽

Computational Prediction ◽

Blood Pump ◽

Navier Stokes ◽

Initial Attempt ◽

Navier Stokes Equation ◽

Artificial Blood ◽

Blood Damage ◽

Blood Pumps

By analyzing fluid dynamics of blood in an artificial blood pump and simulating the flow field structure and the flow performance of blood, the blood flow and the damages in the designed blood pump would be better understood. This paper describes computational fluid dynamic (CFD) used in predicting numerically the hemolysis of blade in micro-axial blood pumps. A numerical hydrodynamical model, based on the Navier-Stokes equation, was used to obtain the flow in a micro-axial blood pump. A time-dependent stress acting on blood particle is solved in this paper to explore the blood flow and damages in the micro-axial blood pump. An initial attempt is also made to predict the blood damage from these simulations.

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