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A novel biomimetic analysis system for quantitative characterisation of sclerosing foams used for the treatment of varicose veins

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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.

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Authors and Affiliations

  1. Bioengineering Sciences Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton, SO17 1BJ, UK

    Dario Carugo & Xunli Zhang

  2. Electromechanical Engineering Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton, SO17 1BJ, UK

    Dyan N. Ankrett & Martyn Hill

  3. Biocompatibles UK Ltd., Farnham Business Park, Weydon Lane, Farnham, Surrey, GU9 8QL, UK

    Vincent O’Byrne, Sean Willis & Andrew L. Lewis

  4. BTG International Ltd., 5 Fleet Place, London, EC4M 7RD, UK

    David D. I. Wright

  5. Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK

    Martyn Hill & Xunli Zhang

Authors
  1. Dario Carugo
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  2. Dyan N. Ankrett
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  3. Vincent O’Byrne
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  4. Sean Willis
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  5. David D. I. Wright
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  6. Andrew L. Lewis
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  7. Martyn Hill
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  8. Xunli Zhang
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Correspondence to Xunli Zhang.

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Carugo, D., Ankrett, D.N., O’Byrne, V. et al. A novel biomimetic analysis system for quantitative characterisation of sclerosing foams used for the treatment of varicose veins. J Mater Sci: Mater Med 24, 1417–1423 (2013). https://doi.org/10.1007/s10856-013-4913-6

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  • DOI: https://doi.org/10.1007/s10856-013-4913-6

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