Improved methods of treatment of diseased or occluded vascular grafts in patients having undergone coronary artery bypass or other bypass surgery are disclosed. Deployment of a conduit in the myocardium at a site distal to the site of attachment of the coronary artery bypass graft allows oxygenated blood...http://www.google.com.hk/patents/US20010037149?utm_source=gb-gplus-share專利 US20010037149 - Vascular graft bypass
