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 language | English (US) |
|---|---|
| Title of host publication | Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC |
| Pages | 1002-1003 |
| Number of pages | 2 |
| Volume | 2005 |
| State | Published - 2005 |
| Event | 2005 Summer Bioengineering Conference - Vail, CO, United States Duration: Jun 22 2005 → Jun 26 2005 |
Other
| Other | 2005 Summer Bioengineering Conference |
|---|---|
| Country | United States |
| City | Vail, CO |
| Period | 6/22/05 → 6/26/05 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
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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 proceeding › Conference contribution
TY - GEN
T1 - Mechanical heart valve closure dynamics
AU - Manning, Keefe B.
AU - Herbertson, Luke H.
AU - Fontaine, Arnold Anthony
AU - Tarbell, John M.
AU - Deutsch, Steven
PY - 2005
Y1 - 2005
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33646549885&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646549885&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33646549885
SN - 0974249211
SN - 9780974249216
VL - 2005
SP - 1002
EP - 1003
BT - Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC
ER -