A preferred apparatus for delivering an intravascular drug such as a sclerosing agent (or a microfoam sclerosing agent) to a varicose vein includes a catheter having three concentric tubes. The innermost tube has a guide wire lumen and an inflation lumen. The distal end of the innermost tube has an integral...http://www.google.fr/patents/US7077836?utm_source=gb-gplus-shareBrevet US7077836 - Methods and apparatus for sclerosing the wall of a varicose vein
Methods and apparatus for sclerosing the wall of a varicose vein