Mechanical heart valve closure dynamics

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

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 proceeding › Conference 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 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

All Science Journal Classification (ASJC) codes

Engineering(all)

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Cite this

@inproceedings{9fbb9271c3d8452fa7503b2b4d2b3944,

title = "Mechanical heart valve closure dynamics",

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.",

author = "Manning, {Keefe B.} and Herbertson, {Luke H.} and Fontaine, {Arnold Anthony} and Tarbell, {John M.} and Steven Deutsch",

year = "2005",

language = "English (US)",

isbn = "0974249211",

volume = "2005",

pages = "1002--1003",

booktitle = "Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC",

note = "2005 Summer Bioengineering Conference ; Conference date: 22-06-2005 Through 26-06-2005",

}

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

T2 - 2005 Summer Bioengineering Conference

Y2 - 22 June 2005 through 26 June 2005

ER -