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Author(s): Catarina Castro
Carlos Alberto Conceição António
Luísa Costa Sousa
Title: On the mechanical failure of arterial prostheses
Issue Date: 2013
Abstract: Nowadays, the use of synthetic grafts to bypass occluded arterial sections is common practicein clinics and hospitals. Success has been achieved in cases involving large diameter bloodvessels. However, for arteries with a diameter less than 5 mm, the success rates for syntheticgrafts have been low mainly due to intimal hyperplasia formation at anastomoses. Thepostulated reasons affecting graft failure include compliance mismatch, internal radiusmismatch, Youngs modulus, and impedance phase angle. Development of a graft that ismechanically equivalent with a natural artery requires investigation of the mechanics ofarteries and possible grafts. Numerical studies can provide information on how selectionwithin existing prostheses can influence the patency rate. A computational model is used todetermine design parameters for patient-specific optimal grafts.
Subject: Ciências da Saúde, Ciências Tecnológicas, Ciências da engenharia e tecnologias
Health sciences, Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Source: IRF2013 - Proceedings of the 4th International Conference on Integrity, Reliability and failure
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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