Native aortic valve leaflets contain a network of strong collagen fibers within a matrix of relatively distensible tissue. This composite structure leads to anisotropic mechanical properties and is believed to play an important role in the ability of the structure to withstand the stresses of cyclic loading over billions of heart beats. Replacement valves that consist of animal tissues also contain such fibers, but all designs in clinical use are chemically cross-linked, which increases the in-plane stiffness of the tissue and decreases anisotropy. Tissue replacement valves suffer from poor durability due to calcification and tissue degeneration in regions of high stress, including at the base of the coaptation region and at the leaflet commissures [1]. A better understanding of leaflet stresses in these regions and how to mitigate them is important in order to improve the design of replacement heart valves to improve durability.
Skip Nav Destination
ASME 2012 Summer Bioengineering Conference
June 20–23, 2012
Fajardo, Puerto Rico, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
978-0-7918-4480-9
PROCEEDINGS PAPER
Lower Transient Stresses in an Aortic Valve Leaflet With Oblique Reinforcement Fibers: A Finite Element Study
Peter E. Hammer,
Peter E. Hammer
Children’s Hospital, Boston, MA
Search for other works by this author on:
Robert D. Howe,
Robert D. Howe
Harvard University, Cambridge, MA
Search for other works by this author on:
Pedro J. del Nido
Pedro J. del Nido
Children’s Hospital, Boston, MA
Search for other works by this author on:
Peter E. Hammer
Children’s Hospital, Boston, MA
Robert D. Howe
Harvard University, Cambridge, MA
Pedro J. del Nido
Children’s Hospital, Boston, MA
Paper No:
SBC2012-80796, pp. 1049-1050; 2 pages
Published Online:
July 19, 2013
Citation
Hammer, PE, Howe, RD, & del Nido, PJ. "Lower Transient Stresses in an Aortic Valve Leaflet With Oblique Reinforcement Fibers: A Finite Element Study." Proceedings of the ASME 2012 Summer Bioengineering Conference. ASME 2012 Summer Bioengineering Conference, Parts A and B. Fajardo, Puerto Rico, USA. June 20–23, 2012. pp. 1049-1050. ASME. https://doi.org/10.1115/SBC2012-80796
Download citation file:
6
Views
Related Proceedings Papers
Related Articles
Simulated Bioprosthetic Heart Valve Deformation under Quasi-Static Loading
J Biomech Eng (November,2005)
Biaxial Mechanical Properties of the Natural and Glutaraldehyde Treated Aortic Valve Cusp—Part I: Experimental Results
J Biomech Eng (February,2000)
Related Chapters
Novel and Efficient Mathematical and Computational Methods for the Analysis and Architecting of Ultralight Cellular Materials and their Macrostructural Responses
Advances in Computers and Information in Engineering Research, Volume 2
Wear of Glass Fiber Reinforced Composite Material
Composite Materials: Testing and Design (Third Conference)
Synthesis and Characterization of Carboxymethyl Chitosan Based Hybrid Biopolymer Scaffold
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3