A New Approach to Stress Analysis of Vascular Devices Using High Resolution Thermoelastic Stress Analysis

James Eaton-Evans; Janice M. Dulieu-Barton; Edward G. Little; Ian A. Brown

doi:10.4028/www.scientific.net/AMM.5-6.63

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 5-6A New Approach to Stress Analysis of Vascular...

A New Approach to Stress Analysis of Vascular Devices Using High Resolution Thermoelastic Stress Analysis

Abstract:

Thermoelastic Stress Analysis (TSA) is a non-contacting technique that provides full field stress information and can record high-resolution measurements from small structures. The work presented in this paper summarises the application of TSA to two types of small medical devices that are used to treat diseased arteries; angioplasty balloons and vascular stents. The use of high resolution optics is described along with a calibration methodology that allows quantitative stress measurements to be taken from the balloon structure. A brief account of a study undertaken to characterise the thermoelastic response from Nitinol is also included and it is demonstrated that thermoelastic data can be obtained from a stent at high resolutions.

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Periodical:

Applied Mechanics and Materials (Volumes 5-6)

Pages:

63-70

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.5-6.63

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Cite this paper

Online since:

October 2006

Authors:

James Eaton-Evans, Janice M. Dulieu-Barton, Edward G. Little, Ian A. Brown

Keywords:

Angioplasty, Nitinol, Stent, Thermoelastic Stress Analysis

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