An energy delivering probe is used for thermally coagulating and/or constricting hollow anatomical structures (HAS) including, but not limited to, blood vessels such as perforator veins. The probe includes a shaft and at least two electrodes where at least one of the electrodes has a generally spherical...http://www.google.co.uk/patents/US20060030849?utm_source=gb-gplus-sharePatent US20060030849 - Methods and apparatus for coagulating and/or constricting hollow anatomical structures
