Visualization of the hinge flow in a 5:1 scaled model of the medtronic parallel bileaflet heart valve prosthesis

T. M. Healy; A. A. Fontaine; J. T. Ellis; S. P. Walton; A. P. Yoganathan

doi:10.1007/s003480050257

Visualization of the hinge flow in a 5:1 scaled model of the medtronic parallel bileaflet heart valve prosthesis

T. M. Healy, A. A. Fontaine, J. T. Ellis, S. P. Walton, A. P. Yoganathan

Applied Research Laboratory (ARL)

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

In this work, a flow visualization experiment was performed to elucidate features of the retrograde hinge flow through a 5:1 scaled model of the Medtronic Parallel bileaflet heart valve. It was hypothesized that this model would provide detailed flow information facilitating identification of flow structures associated with thrombus formation in this valve. The experimental protocol was designed to ensure fluid dynamic similarity between the model and prototype heart valves. Flow was visualized using dye injection. The detailed flow structures observed showed the hinge's inflow channel was the most suspect region for thrombus formation. Here a complex helical structure was observed.

Original language	English (US)
Pages (from-to)	512-518
Number of pages	7
Journal	Experiments in Fluids
Volume	25
Issue number	5-6
DOIs	https://doi.org/10.1007/s003480050257
State	Published - Jan 1 1998

All Science Journal Classification (ASJC) codes

Computational Mechanics
Mechanics of Materials
Physics and Astronomy(all)
Fluid Flow and Transfer Processes

Access to Document

10.1007/s003480050257

Cite this

@article{56d671ecc29647688f4034ec85951009,

title = "Visualization of the hinge flow in a 5:1 scaled model of the medtronic parallel bileaflet heart valve prosthesis",

abstract = "In this work, a flow visualization experiment was performed to elucidate features of the retrograde hinge flow through a 5:1 scaled model of the Medtronic Parallel bileaflet heart valve. It was hypothesized that this model would provide detailed flow information facilitating identification of flow structures associated with thrombus formation in this valve. The experimental protocol was designed to ensure fluid dynamic similarity between the model and prototype heart valves. Flow was visualized using dye injection. The detailed flow structures observed showed the hinge's inflow channel was the most suspect region for thrombus formation. Here a complex helical structure was observed.",

author = "Healy, {T. M.} and Fontaine, {A. A.} and Ellis, {J. T.} and Walton, {S. P.} and Yoganathan, {A. P.}",

year = "1998",

month = jan,

day = "1",

doi = "10.1007/s003480050257",

language = "English (US)",

volume = "25",

pages = "512--518",

journal = "Experiments in Fluids",

issn = "0723-4864",

publisher = "Springer Verlag",

number = "5-6",

}

TY - JOUR

T1 - Visualization of the hinge flow in a 5:1 scaled model of the medtronic parallel bileaflet heart valve prosthesis

AU - Healy, T. M.

AU - Fontaine, A. A.

AU - Ellis, J. T.

AU - Walton, S. P.

AU - Yoganathan, A. P.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - In this work, a flow visualization experiment was performed to elucidate features of the retrograde hinge flow through a 5:1 scaled model of the Medtronic Parallel bileaflet heart valve. It was hypothesized that this model would provide detailed flow information facilitating identification of flow structures associated with thrombus formation in this valve. The experimental protocol was designed to ensure fluid dynamic similarity between the model and prototype heart valves. Flow was visualized using dye injection. The detailed flow structures observed showed the hinge's inflow channel was the most suspect region for thrombus formation. Here a complex helical structure was observed.

AB - In this work, a flow visualization experiment was performed to elucidate features of the retrograde hinge flow through a 5:1 scaled model of the Medtronic Parallel bileaflet heart valve. It was hypothesized that this model would provide detailed flow information facilitating identification of flow structures associated with thrombus formation in this valve. The experimental protocol was designed to ensure fluid dynamic similarity between the model and prototype heart valves. Flow was visualized using dye injection. The detailed flow structures observed showed the hinge's inflow channel was the most suspect region for thrombus formation. Here a complex helical structure was observed.

UR - http://www.scopus.com/inward/record.url?scp=0032183514&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032183514&partnerID=8YFLogxK

U2 - 10.1007/s003480050257

DO - 10.1007/s003480050257

M3 - Article

AN - SCOPUS:0032183514

SN - 0723-4864

VL - 25

SP - 512

EP - 518

JO - Experiments in Fluids

JF - Experiments in Fluids

IS - 5-6

ER -

Visualization of the hinge flow in a 5:1 scaled model of the medtronic parallel bileaflet heart valve prosthesis

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this