Mechanical heart valve closure dynamics

Keefe B. Manning, Luke H. Herbertson, Arnold A. Fontaine, John M. Tarbell, Steven Deutsch

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A laser Doppler velocimetry study has been conducted to understand the mechanical heart valve closure dynamics. A Bjork-Shiley Monostrut mechanical heart valve was modified by removing a section of the titanium housing and replaced with an acrylic window. A single shot mechanical heart valve chamber that simulates the mitral valve closure dynamics was used as part of the flow study. The results suggest that velocities, Reynolds stresses and turbulent intensities are high enough to induce hemolysis. In addition, vortices develop that may contribute to cavitation leading to microembolic signals (strokes or neurologic deficits) that occur during and post implantation.

Original languageEnglish (US)
Title of host publicationProceedings of the 2005 Summer Bioengineering Conference, 2005 SBC
Number of pages2
StatePublished - 2005
Event2005 Summer Bioengineering Conference - Vail, CO, United States
Duration: Jun 22 2005Jun 26 2005

Publication series

NameProceedings of the 2005 Summer Bioengineering Conference


Other2005 Summer Bioengineering Conference
Country/TerritoryUnited States
CityVail, CO

All Science Journal Classification (ASJC) codes

  • General Engineering


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