[Problem] To provide a blood transmission cannula that is usable in the extracorporeal circulation of blood with the use of an artificial heart-lung machine, said blood transmission cannula being to be inserted into the femoral artery in such a manner that the tip thereof is positioned in the ascending aorta, and transmitting blood, which is supplied from an artificial heart-lung machine, from the ascending aorta to the descending aorta to thereby assure completely antegrade blood transmission.[Solution] An antegrade blood transmission cannula that comprises an inner tube (1) that is provided with a blood delivery port (1a) in the tip side and a blood introduction port (1b) in the base side and an outer tube (2) that is to be fitted to the inner tube (1), wherein: a circular return channel (20) is formed between these tubes (1) and (2) the outer tube (2) is closed in the tip side (2a) and the base side (2b) and provided with a number of blood-releasing holes (3) facing the circular return channel (20) and, when blood is delivered from the blood delivery port (1a), the blood is inverted to flow into the circular return channel (20) and then released via the blood-releasing holes (3) into the aortas (A1, A2) in the antegrade direction.La présente invention vise à fournir une canule de transmission de sang qui peut être utilisée dans la circulation extracorporelle de sang à laide dune machine de cœur-poumon artificiel, ladite canule de transmission de sang étant introduite dans lartère fémorale de telle sorte que sa pointe est positionnée dans laorte ascendante, et transmettant le sang qui est fourni par une machine de cœur-poumon artificiel, de laorte ascendante à laorte descendante, pour assurer ainsi une transmission de sang entièrement antégrade. Linvention concerne une canule de transmission de sang antégrade, qui comprend un tube intérieur (1) qui comporte un orifice de distribution de sang (1a) dans le côté pointe et un orifice dintroduction de sang (1b) dans le
