A microwave antenna assembly including an elongated cooling jacket having proximal and distal ends and an inner lumen defined therebetween and a helical microwave antenna member disposed within at least a portion of the elongated cooling jacket and having an inner and outer conductor, the inner conductor...http://www.google.es/patents/US7998139?utm_source=gb-gplus-sharePatente US7998139 - Cooled helical antenna for microwave ablation
