Mechanical properties of stent-graft materials

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Isa C.T. Santos (Author) FEUP; Alexandra Rodrigues (Author) Other; Lígia Figueiredo (Author) Other; Luís Rocha (Author) Other; João Manuel R. S. Tavares (Author) FEUP

Journal

Title: Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications

Vol. 226 No. 4

Pages: 330-341

ISSN: 1464-4207

Publisher: SAGE

Indexing

ISI Web of Science

Scopus

COMPENDEX

INSPEC

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences

Other information

DOI: 10.1177/1464420712451065

Abstract (EN): An aneurysm is a localized blood-filled dilatation of an artery whose consequences can be deadly. One of its current treatments is endovascular aneurysm repair (EVAR), a minimally invasive procedure in which an endoprosthesis, called a stent-graft, is placed transluminally to prevent wall rupture. Early stent-grafts were custom designed for the patient through the assembling of off-the-shelf components by the operating surgeon. However, nowadays, stent-grafts have become a commercial product. The existing endoprostheses differ in several aspects, such as shape design and materials, but they have in common a metallic scaffold with a polymeric covering membrane. This paper aims to gather relevant information for those who wish to understand the principles of stent-grafts and even to develop new devices. Hence, a stent-graft classification based on different characteristics is presented, and the significant features of an ideal device are pointed out. Additionally, the materials currently in use to fabricate this type of prosthesis are reviewed and new materials are suggested.

Language: English

Type (Professor's evaluation): Scientific