대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)

대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
권호 표지

기계식 심장판막의 충격력에 관한 실험적 연구

An Experimental Study on the Impact Force of a Mechanical Heart Valve Prostheses

  • 이정한 (원광대학교 대학원 기계공학과) ;
  • 천길정 (원광대학교 기계공학과)
  • Lee, J.H. (Dept of Mech. Eng., Won-Kwang Univ.) ;
  • Cheon, G.J. (Dept of Mech. Eng., Won-Kwang Univ.)
  • 발행 : 1996.05.17
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초록

Impact force and strains induced by impact between the occluder and the struts have been measured with force senfor and strain gages. The maximum reaction force was about 25N, and the calculated impact force on the root of the struts amount about $9{\sim}17N$. Impact force on the inlet strut is greater than that of the outlet strut, but the strain on the outlet strut is much higher than that of the inlet strut. These values might cause severe damage on the valve in the critical cases. The results of this study may be extended for the analysis of the endurance limit and optimal design of the struts and occluder.

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