A vascular graft is used to supply blood to one or more coronary artery branches. The vascular graft has an elongated U-shaped tubular body providing a continuous passage for carrying blood from a high pressure blood supply to a blood receiver. One or more openings in the body allow blood to flow into...http://www.google.com.au/patents/US4562597?utm_source=gb-gplus-sharePatent US4562597 - Method of supplying blood to blood receiving vessels
