대한의용생체공학회:의공학회지 (Journal of Biomedical Engineering Research)

  • 제17권2호
  • /
  • Pages.215-220
  • /
  • 1996
  • /
  • 1229-0807(pISSN)
  • /
  • 2288-9396(eISSN)
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 HeBrt Valve Prostheses

  • 이정한 (원광대학교 대학원 기계공학과) ;
  • 천길정 (원광대학교 대학원 기계공학과)
  • 발행 : 1996.06.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Impact force and strains induced by impact between the occluder and the struts have been measured with force sensor and strain gages. The maximum reaction force was about 25N, and the calculated impact force on the root of the struts amount about 9-17W. 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.

키워드

참고문헌

  1. Proc. 2nd World Cong. Biomech. Pressure Distribution Near the Occluders and Impact Forces on the Outlet Struts of Bjork-Shiley Convex-Concave Valves During Closing Chandran, K. B.;C. S. Lee;S. Aluri;K. C. Dellsperger;S. Schreck;D. W. Weiting
  2. J. Thorac. Cardiovas. Surg. v.97 Leaflet Fracture in Edwards-Duromedics Bileaflet Valves Klepetko, W.
  3. ASME J. Biomech. Eng. v.108 Fatigue Life Estimation Procedures for the Endurance of a Cardiac Valve Prosthesis : Stress/Life and Damage-Tolerant analyses Ritchie, R. O.;Lubock, P.
  4. ASME J. of Biomechanical Engineering v.115 Dynamic Behavior Analysis of Mechanical Monoleaflet Heart Valve Prostheses in the Opening Phase Cheon, G. J.;Chandran, K. B.
  5. ASME J. of Biomechanical Engineering v.116 Transient Behavior Analysis of a Mechanical Monoleaflet Heart Valve Prosthesis in the Closing Phase Cheon, G. J.;Chandran, K. B.
  6. Annals of Biomedical Engineering v.23 Dynamics of a Mechanical Monoleaflet Heart Valve Prosthesis in the Closing Phase : Effect of Squeeze Film Cheon, G. J.;Chandran, K. B.
  7. 대한기계학회 논문집 v.19 no.2 스퀴즈필름효과를 고려한 인공심장밸브의 닫힘시 동적거동 해석 천길정
  8. J. Biomechanics v.21 no.7 Dynamic Analysis of Flutter in Disk Type Mechanical Heart Valve Prostheses Prabhu, A. A.;Hwang, N.H.C.