A method for producing a microfoam suitable for use in scleropathy of blood vessels comprises introducing a physiologically acceptable blood-dispersible gas into a container (1) holding an aqueous sclerosant liquid and releasing the mixture of blood-dispersible gas and sclerosant liquid, whereby upon...http://www.google.com.au/patents/US20040156915?utm_source=gb-gplus-sharePatent US20040156915 - Generation of therapeutic microfoam
