Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1995 Issue 05
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- Pages.241-246
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- 1995
Hydrodynamic Investigation of a Floating-type Monoleaflet Polymer Heart Valve under Steady Flow Condition
정상유동에서 유동형 단엽폴리머 인공심장판막의 수력학적 성능평가
- Pak, Bock-Choon (School of Mechanical Engineering, Chonbuk National University) ;
- Kim, Joon-Woo (School of Mechanical Engineering, Chonbuk National University) ;
- Baek, Byoung-Joon (School of Mechanical Engineering, Chonbuk National University) ;
- Min, Byoung-Goo (Department of Biomedical Engineering, Seoul National University)
- Published : 1995.05.12
Abstract
An experimental investigation was performed under steady flow condition to assess hydrodynamic performance of floating-type monoleaflet polymer valves (MLPV) with different leaflet thickness. The St. Jude Medical valve (SJMV) was also used for comparison tests. Pressure drops of MLPVs are larger than those for other types of polymer valves and mechanical valves. Furthermore, the thicker is the leaflet thickness of a polymer valve, the larger arc the corresponding press drop. The velocity profiles for MLPV reveal a large reversed flow region downward to the valve position. The maximum wall shear stresses of MLPVs at a flow rate of 30 l/min are in the range