The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Apr. 23, 2010
David Dakin Iorwerth Wright, Buckinghamshire, GB;
Anthony David Harman, Oxfordshire, GB;
Nikki Robinson, Uxbridge, GB;
Garry Hodges, Middlesex, GB;
Adil Kadar, Middlesex, GB;
Geoffrey D. Moggridge, Cambridge, GB;
Hugh Van Liew, Bamstable, MA (US);
David Dakin Iorwerth Wright, Buckinghamshire, GB;
Anthony David Harman, Oxfordshire, GB;
Nikki Robinson, Uxbridge, GB;
Garry Hodges, Middlesex, GB;
Adil Kadar, Middlesex, GB;
Geoffrey D. Moggridge, Cambridge, GB;
Hugh Van Liew, Bamstable, MA (US);
BTG International Ltd., London, GB;
Abstract
A therapeutic foam for the treatment of, inter alia, varicose veins comprises a sclerosing solution foamed with a physiological gas such as carbon dioxide, oxygen or a mixture thereof. The foam has a nitrogen content of less than 0.8%. It may be generated using a pressurized canister system incorporating a fine mesh of micron dimensions through which the gas and sclerosing liquid are passed to make the foam. Alternatively, the foam may be generated by passing gas and solution between two syringes through a fine mesh. Techniques are described for minimizing the amount of nitrogen in a canister or syringe based product. A technique for generating and delivering foam simultaneously using a syringe based device is also disclosed.