Mechanical heart valve closure dynamics

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

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

Abstract

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
Pages1002-1003
Number of pages2
Volume2005
StatePublished - 2005
Event2005 Summer Bioengineering Conference - Vail, CO, United States
Duration: Jun 22 2005Jun 26 2005

Other

Other2005 Summer Bioengineering Conference
CountryUnited States
CityVail, CO
Period6/22/056/26/05

Fingerprint

Cavitation
Velocity measurement
Acrylics
Vortex flow
Titanium
Lasers

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Manning, K. B., Herbertson, L. H., Fontaine, A. A., Tarbell, J. M., & Deutsch, S. (2005). Mechanical heart valve closure dynamics. In Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC (Vol. 2005, pp. 1002-1003)
Manning, Keefe B. ; Herbertson, Luke H. ; Fontaine, Arnold Anthony ; Tarbell, John M. ; Deutsch, Steven. / Mechanical heart valve closure dynamics. Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. Vol. 2005 2005. pp. 1002-1003
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Manning, KB, Herbertson, LH, Fontaine, AA, Tarbell, JM & Deutsch, S 2005, Mechanical heart valve closure dynamics. in Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. vol. 2005, pp. 1002-1003, 2005 Summer Bioengineering Conference, Vail, CO, United States, 6/22/05.

Mechanical heart valve closure dynamics. / Manning, Keefe B.; Herbertson, Luke H.; Fontaine, Arnold Anthony; Tarbell, John M.; Deutsch, Steven.

Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. Vol. 2005 2005. p. 1002-1003.

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

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Manning KB, Herbertson LH, Fontaine AA, Tarbell JM, Deutsch S. Mechanical heart valve closure dynamics. In Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. Vol. 2005. 2005. p. 1002-1003