The present invention provides a medical device for the delivery of treatmentfluid to body vessels, having a distal (21) and a proximal (20) end, comprisinga self-expanding, hollow tubular member (9) and a delivery catheter (10) suitablefor deploying a self-expanding, tubular member (9), wherein the tubular member(9) is configured to expand radially to form a central part (11) flanked by twoannular ridges, which creates, in situ, an annular lumen for that can apply treatmentfluid locally to a vessel and a passageway that can maintain the flow of blood thoughthe vessel. The device is particularly suited for minimally invasive and repeatableorgan perfusion. It also relates to a method for organ perfusion.
