Relationship between fibre orientation and tensile strength of natural collagen membranes for heart valve leaflets

Bourges, Jean Yves and Rojo Pérez, Francisco Javier and Garcia Paez, J.M. and Atienza Riera, José Miguel and Alvarez, L. and Guinea Tortuero, Gustavo V. (2011). Relationship between fibre orientation and tensile strength of natural collagen membranes for heart valve leaflets. In: "XXVIII Encuentro del Grupo Español de Fractura", 06/04/2011 - 08/04/2011, Gijón, España.

Description

Title: Relationship between fibre orientation and tensile strength of natural collagen membranes for heart valve leaflets
Author/s:
  • Bourges, Jean Yves
  • Rojo Pérez, Francisco Javier
  • Garcia Paez, J.M.
  • Atienza Riera, José Miguel
  • Alvarez, L.
  • Guinea Tortuero, Gustavo V.
Item Type: Presentation at Congress or Conference (Article)
Event Title: XXVIII Encuentro del Grupo Español de Fractura
Event Dates: 06/04/2011 - 08/04/2011
Event Location: Gijón, España
Title of Book: Anales de Mecánica de Fractura 28, 2011
Date: 2011
Volume: 1
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (377kB) | Preview

Abstract

Heart valve prostheses are used to replace native heart valves which that are damaged because of congenital diseases or due to ageing. Biological prostheses made of bovine pericardium are similar to native valves and do not require any anticoagulation treatment, but are less durable than mechanical prostheses and usually fail by tearing. Researches are oriented in improving the resistance and durability of biological heart valve prostheses in order to increase their life expectancy. To understand the mechanical behaviour of bovine pericardium and relate it to its microstructure (mainly collagen fibres concentration and orientation) uniaxial tensile tests have been performed on a model material made of collagen fibres. Small Angle Light Scattering (SALS) has been also used to characterize the microstructure without damaging the material. Results with the model material allowed us to obtain the orientation of the fibres, relating the microstructure to mechanical performance

More information

Item ID: 12406
DC Identifier: http://oa.upm.es/12406/
OAI Identifier: oai:oa.upm.es:12406
Official URL: http://www.gef.es/Congresos.asp
Deposited by: Memoria Investigacion
Deposited on: 10 Aug 2012 07:26
Last Modified: 21 Apr 2016 11:39
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM