The invention relates to medicine and medical equipment, namely to cardio - vascular surgery, and directed towards the providing of optimum rate of venous return in circuit of the extracorporeal circulation (IR) during single cannulation right atrium and lower hollow vein, due to availability of possibility of regulation of occlusion of venous cannula without special additional devices, for example clamps.This the, two-stage that dark-red cannula for draining heart has obturator, installed in reinforced wire body, which is finished on one end tip, having perforation, collective tunnels and outgoing from them cuts, opportunities in common lumen, and on the other - connector for connection to apparatus IR and projections with a pressing retainer and corrugated surface, characterized in that has drain holes.This utility model can be used in practice cardio - vascular surgery, in particular during operations with use of IR and accompanied by simultaneous cannulation right atrium and lower hollow vein.