As described herein vascular anchoring systems are used to position an implant in a vascular area such as a bifurcated vasculature with relatively high fluid flow, for instance, in an area of a pulmonary artery with associated left and right pulmonary arteries. Implementations include an anchoring trunk...http://www.google.com/patents/US7872613?utm_source=gb-gplus-sharePatent US7872613 - Enhanced implantable helical antenna system and method
