A novel biomimetic analysis system for quantitative characterisation of sclerosing foams used for the treatment of varicose veins.
J Mater Sci Mater Med
; 24(6): 1417-23, 2013 Jun.
Article
em En
| MEDLINE
| ID: mdl-23512153
ABSTRACT
A novel analysis system for the quantification of sclerosing foam properties under clinically relevant conditions was developed with the purpose of establishing a robust methodology for comparative characterisation of different foam formulations and production strategies. The developed biomimetic-inspired model comprised of 4 or 10 mm inner diameter polytetrafluoroethylene tubing, filled with a blood substitute and fixed to a platform with an adjustable inclination angle. Sclerosing foams were produced by mixing polidocanol with either atmospheric air or 100 % CO2, using a double-syringe system method. Individual foams were injected into the tube, while videos were captured simultaneously. Videos were then transferred to an in-house computational foam analysis system (CFAS) which performed a sequence of semi-automated operations, allowing quantitative characterisation of sclerosing foam dynamic behaviour. Using CFAS, degradation rates of different foams were measured and the effect of gas composition, liquid sclerosant concentration and time delay between foam production and injection were evaluated.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Reologia
/
Soluções Esclerosantes
/
Varizes
/
Teste de Materiais
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Biomimética
/
Gases
Limite:
Humans
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article