PURPOSE: To provide a liquid transfusing device in which communication between a drug container and the container of a dissolving liquid or a diluting liquid is ensured and made easy through simple constitution and which can mix a drug with the dissolving liquid in a short time after the communication and which is inexpensive.
CONSTITUTION: A liquid transfusing device 1 for use in intravenous drip infusion includes a flexible container having a dissolving liquid or a diluting liquid enclosed therein and a liquid communicating portion 2 at its upper portion and a drug container 5 having a drug enclosed therein and a drug communicating portion 4 at its lower portion, and the liquid communicating portions 2, 9 are comprised of liquid communicating passages 2, 9 having an inner screw 8, and a thin film 11 holding a push bar 10 and sealing the liquid communicating passages 2, 9 and the drug communicating portion 4 is comprised of a drug communicating portion 13, a stopper which is pushed into the drug container 5 by driving of an outside screw into an inside screw 8 so as to open the drug communicating passage 13, and a protrusion 16 which is formed at the end of the drug communicating passage 13 and which opens the liquid communicating passages 2, 9 directly or by means of breaking of the thin film 11 by further driving of the outside screw into the inside screw 8 subsequent to opening of the drug communicating passage 13.
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INABA MITSUGI
SUNAGO SEIZO
TAKAHATA OSAMU
