Abstract The disposable device for intraoperative reinfusion consists of a polycarbonate container with an antifoam-coated filter. One port is connected to the suction tip; the other port is attached to wall suction. Sodium citrate solution (50 to 100 ml) is aspirated first, followed by 400 ml of shed blood. The full container is passed to the anesthetist who turns the device upside down and starts reinfusion from the bottom, previously the top port of the container. In experiments with dogs, this procedure resulted in only slight hemolysis, a minor drop in platelet count, and no mortality or morbidity. This new method of reinfusion combines the advantages of simplicity, disposable equipment, and low blood trauma.