ANDOVER, Mass.--(BUSINESS WIRE)--Diomed Holdings, Inc. (AMEX: DIO - News), a leading developer and marketer of minimally invasive medical technologies, including its patented EndoVenous Laser Treatment (EVLT®) for varicose veins, today announced that U.S. District Judge Nathaniel M. Gorton has set March 12, 2007 as the trial date for commencement of trial in the pending litigation to enforce Diomed’s U.S. Patent No. 6,398,777 against both AngioDynamics and Vascular Solutions.