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- W4252510172 abstract "This study is on an evaluation of the hydrodynamic characteristics and efficiency of the moving-actuator type implantable bi-ventricular assist device (BVAD). A blood analog made of 40% glycerin and 60% water was used to simulate the density and viscosity of blood. The maximum pump flow was 8 L/min with 28.8 watt power input and the maximum electrical-to-hydraulic power conversion efficiency was approximately 10 % at pump flow of 4 L/min. The pump was able to generate 4 L/min output against 100 mmHg afterload with less than 9 watt power input. Not only overall system efficiency but also inner subpart power conversion efficiencies were evaluated. The system was subdivided into three major parts: motor part, actuator part and blood sac part according to system mechanism. In normal working condition of the BVAD, the total system efficiency was 10% with subpart efficiencies of 50%, 85% and 19% for motor part, actuator part and blood sac part, respectively. The pump performance assessed in the in vitro mock circulation loop test was acceptable as a BVAD in terms of flow and pressure. This work was supported by the BK 21 project" @default.
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- W4252510172 date "2002-03-01" @default.
- W4252510172 modified "2023-10-18" @default.
- W4252510172 title "HYDRODYNAMIC AND STATIC PERFORMANCE EVALUATION OF THE MOVING-ACTUATOR TYPE BIVENTRICULAR ASSIST DEVICE" @default.
- W4252510172 doi "https://doi.org/10.1097/00002480-200203000-00149" @default.
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