Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Hemodynamic Evaluation of Monoleaflet Polymer Valve

단엽식 고분자판막의 혈역학적 성능평가

  • 김상현 (연세대학교 의과대학 심혈관연구소) ;
  • 장병철 (연세대학교 의과대학 흉부외과학교실, 동아대학교 기계공학과, 펜실베니아주립대학교 의공학과)
  • Published : 1995.03.01
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Abstract

We have developed a monoleaflet polymer valve as an inexpensive and viable alternative, especially for short-term use in the ventricular assist device or total artificial heart. The frame and leaflet of the polymer valve were made from polyurethane. To evaluate the hemodynamic performance of the polymer valve a comparative study of flow dynamics past a polymer valve and a St. Jude Medicals prosthetic valve under physiological pulsatile flow conditions in vitro was made. Comparisons between the valves were made on the transvalvular pressure drop, regurgitation volume and maximum valve opening area. The polymer valve showed smaller regurgitation volllme and transvalvular pressure drop compared to the mechanical valve at higher heart rate. The results showed that the functional characteristics of the polymer valve compared favorably with those of the mechanical valve at higher heart rate.

Keywords

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