TRANSFUSION ENDING VALVE AND TRANSFUSION SET WITH END REPORTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a transfusion set where a valve is operated when the transfusion of one liquid chemical container is ended, liquid flow is stopped, air is prevented from invading into a tube, sound is simultaneously issued and a buzzar connected to a nurse room is depressed. ;SOLUTION: A swelling 2 is provided between the liquid chemical container and the liquid storage 1 of the transfusion set and a needle valve 3 floating in the liquid chemical is provided in it. When transfusion is ended and the container becomes vacant, air comes into a valve room, the needle valve is lowered and the hole of the tube is clogged. Then, air pressure in liquid storage is lowered, a rubber sack 5 in the tip of the tube extended from liquid storage is shrinked, the rubber sack loses a roll as the stopper of an air bag 7 and a whistle fitted to the air bag is blown.;COPYRIGHT: (C)1998,JPO