Fabrication of a compliant phantom of the human aortic arch for use in Particle Image Velocimetry (PIV) experimentation

Compliant phantoms of the human aortic arch can mimic patient specific cardiovascular dysfunctions Hence, phantoms may enable elucidation of haemodynamic disturbances caused by aortic dysfunction. This paper describes the fabrication of a thin-walled silicone phantom of the human ascending aorta and...

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Published inCurrent directions in biomedical engineering Vol. 2; no. 1; pp. 493 - 497
Main Authors Hütter, Larissa, Geoghegan, Patrick H., Docherty, Paul D., Lazarjan, Milad S., Clucas, Donald, Jermy, Mark
Format Journal Article
LanguageEnglish
Published De Gruyter 01.09.2016
Subjects
3d scanning
additive manufacturing
experimental fluids
hemodynamics
particle image velocimetry
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Summary:Compliant phantoms of the human aortic arch can mimic patient specific cardiovascular dysfunctions Hence, phantoms may enable elucidation of haemodynamic disturbances caused by aortic dysfunction. This paper describes the fabrication of a thin-walled silicone phantom of the human ascending aorta and brachiocephalic artery. The model geometry was determined via a meta-analysis and modelled in SolidWorks before 3D printing. The solid model surface was smoothed and scanned with a 3D scanner. An offset outer mould was milled from Ebalta S-Model board. The final phantom indicated that ABS was a suitable material for the internal model, the Ebalta S-Model board yielded a rough external surface. Co-location of the moulds during silicone pour was insufficient to enable consistent wall thickness. The resulting phantom was free of air bubbles but did not have the desired wall thickness consistency.
ISSN:2364-5504
2364-5504
DOI:10.1515/cdbme-2016-0109