Insights into the formation and characteristics of leakage flow structures through bileaflet mechanical heart valve prostheses

Jeffrey T. Ellis; Timothy M. Healy; Arnold A. Fontaine; Rahul Saxena; Ajit P. Yoganathan

Insights into the formation and characteristics of leakage flow structures through bileaflet mechanical heart valve prostheses

Jeffrey T. Ellis
, Timothy M. Healy
, Arnold A. Fontaine
, Rahul Saxena
, Ajit P. Yoganathan

Research output: Contribution to conference › Paper › peer-review

Abstract

The retrograde flow fields surrounding one hinge of Saint Jude Medical (SJM) and Medtronic Parallel (MP) bileaflet mechanical heart valve designs are studied. This study allows a detailed characterization of the washout capacity, squeeze flow, and leakage jets of each valve. The closing flow field of the SJM is found to be dominated by secondary flows, suggesting a scouring of nearby leaflet surfaces. In contrast, the closing flow field of the MP is more static, particularly around the hinge recess of this valve design. The comparative lack of reverse flow around the MP hinge recess may indicate a potential for entrapment or deposition of blood elements.

Original language	English (US)
Pages	279-280
Number of pages	2
State	Published - Dec 1 1996
Event	Proceedings of the 1996 ASME International Mechanical Engineering Congress and Exposition - Atlanta, GA, USA Duration: Nov 17 1996 → Nov 22 1996

Other

Other	Proceedings of the 1996 ASME International Mechanical Engineering Congress and Exposition
City	Atlanta, GA, USA
Period	11/17/96 → 11/22/96

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

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title = "Insights into the formation and characteristics of leakage flow structures through bileaflet mechanical heart valve prostheses",

abstract = "The retrograde flow fields surrounding one hinge of Saint Jude Medical (SJM) and Medtronic Parallel (MP) bileaflet mechanical heart valve designs are studied. This study allows a detailed characterization of the washout capacity, squeeze flow, and leakage jets of each valve. The closing flow field of the SJM is found to be dominated by secondary flows, suggesting a scouring of nearby leaflet surfaces. In contrast, the closing flow field of the MP is more static, particularly around the hinge recess of this valve design. The comparative lack of reverse flow around the MP hinge recess may indicate a potential for entrapment or deposition of blood elements.",

author = "Ellis, \{Jeffrey T.\} and Healy, \{Timothy M.\} and Fontaine, \{Arnold A.\} and Rahul Saxena and Yoganathan, \{Ajit P.\}",

year = "1996",

month = dec,

day = "1",

language = "English (US)",

pages = "279--280",

note = "Proceedings of the 1996 ASME International Mechanical Engineering Congress and Exposition ; Conference date: 17-11-1996 Through 22-11-1996",

}

Insights into the formation and characteristics of leakage flow structures through bileaflet mechanical heart valve prostheses. / Ellis, Jeffrey T.; Healy, Timothy M.; Fontaine, Arnold A. et al.
1996. 279-280 Paper presented at Proceedings of the 1996 ASME International Mechanical Engineering Congress and Exposition, Atlanta, GA, USA.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Insights into the formation and characteristics of leakage flow structures through bileaflet mechanical heart valve prostheses

AU - Ellis, Jeffrey T.

AU - Healy, Timothy M.

AU - Fontaine, Arnold A.

AU - Saxena, Rahul

AU - Yoganathan, Ajit P.

PY - 1996/12/1

Y1 - 1996/12/1

N2 - The retrograde flow fields surrounding one hinge of Saint Jude Medical (SJM) and Medtronic Parallel (MP) bileaflet mechanical heart valve designs are studied. This study allows a detailed characterization of the washout capacity, squeeze flow, and leakage jets of each valve. The closing flow field of the SJM is found to be dominated by secondary flows, suggesting a scouring of nearby leaflet surfaces. In contrast, the closing flow field of the MP is more static, particularly around the hinge recess of this valve design. The comparative lack of reverse flow around the MP hinge recess may indicate a potential for entrapment or deposition of blood elements.

AB - The retrograde flow fields surrounding one hinge of Saint Jude Medical (SJM) and Medtronic Parallel (MP) bileaflet mechanical heart valve designs are studied. This study allows a detailed characterization of the washout capacity, squeeze flow, and leakage jets of each valve. The closing flow field of the SJM is found to be dominated by secondary flows, suggesting a scouring of nearby leaflet surfaces. In contrast, the closing flow field of the MP is more static, particularly around the hinge recess of this valve design. The comparative lack of reverse flow around the MP hinge recess may indicate a potential for entrapment or deposition of blood elements.

UR - https://www.scopus.com/pages/publications/0030395168

UR - https://www.scopus.com/pages/publications/0030395168#tab=citedBy

M3 - Paper

AN - SCOPUS:0030395168

SP - 279

EP - 280

T2 - Proceedings of the 1996 ASME International Mechanical Engineering Congress and Exposition

Y2 - 17 November 1996 through 22 November 1996

ER -

Insights into the formation and characteristics of leakage flow structures through bileaflet mechanical heart valve prostheses

Abstract

Other

All Science Journal Classification (ASJC) codes

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