Annals of Biomedical Engineering

, Volume 45, Issue 2, pp 413–426 | Cite as

A Tri-Leaflet Nitinol Mesh Scaffold for Engineering Heart Valves

  • S. Hamed Alavi
  • Marc Soriano Baliarda
  • Noemi Bonessio
  • Lorenzo Valdevit
  • Arash Kheradvar
The Pursuit of Engineering the Ideal Heart Valve Replacement or Repair


The epidemiology of valvular heart disease has significantly changed in the past few decades with aging as one of the main contributing factors. The available options for replacement of diseased valves are currently limited to mechanical and bioprosthetic valves, while the tissue engineered ones that are under study are currently far from clinical approval. The main problem with the tissue engineered heart valves is their progressive deterioration that leads to regurgitation and/or leaflet thickening a few months after implantation. The use of bioresorbable scaffolds is speculated to be one factor affecting these valves’ failure. We have previously developed a non-degradable superelastic nitinol mesh scaffold concept that can be used for heart valve tissue engineering applications. It is hypothesized that the use of a non-degradable superelastic nitinol mesh may increase the durability of tissue engineered heart valves, avoid their shrinkage, and accordingly prevent regurgitation. The current work aims to study the effects of the design features on mechanical characteristics of this valve scaffold to attain proper function prior to in vivo implantation.


Nitinol mesh Heart valve Scaffold Non-degradable Hybrid heart valve Hybrid tissue engineering approach Computational modeling 



This work was supported by a grant from Children’s Heart Foundation to Prof. Kheradvar and a postdoctoral grant from American Heart Association (16POST27540025) to Dr. Alavi. There are no financial disclosures.


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Copyright information

© Biomedical Engineering Society 2016

Authors and Affiliations

  1. 1.The Edwards Lifesciences Center for Advanced Cardiovascular TechnologyUniversity of California, IrvineIrvineUSA
  2. 2.Department of Biomedical EngineeringUniversity of California, IrvineIrvineUSA
  3. 3.Department of Mechanical and Aerospace EngineeringUniversity of California, IrvineIrvineUSA

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