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Related Experiment Video

Updated: May 15, 2026

Combining 3D-Printing and Electrospinning to Manufacture Biomimetic Heart Valve Leaflets
10:29

Combining 3D-Printing and Electrospinning to Manufacture Biomimetic Heart Valve Leaflets

Published on: March 23, 2022

Optimal elastomeric scaffold leaflet shape for pulmonary heart valve leaflet replacement.

Rong Fan1, Ahmed S Bayoumi, Peter Chen

  • 1Department of Biomedical Engineering and the Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX, United States.

Journal of Biomechanics
|January 9, 2013
PubMed
Summary

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This study presents a finite element simulation method to design optimal shapes for pulmonary valve (PV) replacement leaflets. This approach helps create better engineered tissues for PV repair, improving surgical outcomes.

Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Cardiovascular Surgery

Background:

  • Congenital pulmonary valve defects often necessitate surgical pulmonary valve (PV) replacement.
  • Current engineered tissue approaches for PV replacement are complex and require systematic development.
  • Evaluating candidate materials using single leaflet replacement in an ovine model offers a controlled method.

Purpose of the Study:

  • To present an approach for optimal pulmonary valve leaflet shape design using finite element (FE) simulation.
  • To evaluate the mechanical behavior of an elastomeric scaffold for PV replacement.
  • To guide the design of leaflet shape for pulmonary valve replacement surgery.

Main Methods:

  • Modeled the scaffold as an orthotropic hyperelastic material using a generalized Fung-type constitutive model.

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Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
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Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

Published on: October 17, 2013

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Last Updated: May 15, 2026

Combining 3D-Printing and Electrospinning to Manufacture Biomimetic Heart Valve Leaflets
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Combining 3D-Printing and Electrospinning to Manufacture Biomimetic Heart Valve Leaflets

Published on: March 23, 2022

Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
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Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

Published on: October 17, 2013

  • Used FE simulation to determine the optimal leaflet shape by minimizing the difference between simulated and ex-vivo microCT scan data of native ovine PV leaflets.
  • Investigated the effects of material anisotropy, PV root dimensional changes, and fiber orientation on leaflet deformation.

    • Main Results:

    • Developed a method for optimal leaflet shape design based on FE simulation.
    • Demonstrated the influence of material anisotropy and fiber orientation on leaflet deformation.
    • In-situ validation confirmed the approach's utility in guiding leaflet shape design.

    Conclusions:

    • The presented FE simulation approach can effectively guide the design of pulmonary valve replacement leaflet shapes.
    • This method allows for the evaluation of candidate materials under realistic valve-level stresses.
    • The findings contribute to the development of improved engineered tissues for pulmonary valve repair.