Abstract: A fluid vessel which include a drug storing chamber, a capping member for hermetically sealing the mouth portion of the drug storing chamber, and a solvent chamber joined to the bottom of the drug storing chamber, wherein the drug storing chamber is provided with a communication hole at the bottom thereof for communicating with the solvent chamber and includes a protruding piece which hermetically seals the communication hole, protrudes into the drug storing chamber, and is movable so as to open the communication hole, while the capping member has an engaging portion to be engaged with the tip of the protruding piece whereby the protruding piece is moved to open the communication hole by rotation of the capping member. This vessel serves to simplify the manufacturing process and reduces the number of components, is readily disposed of, facilitates mixing the drug with the solvent, and is easy to store and handle in hospitals and other facilities.

Abstract: A fluid vessel including a drug vessel with a mouth portion sealed with a penetrable plug, a vial guide which holds the drug vessel and a flexible solvent vessel. The flexible solvent vessel has a drug solution outlet port and a communication port to the drug vessel, and an integrally molded tubular guide portion concentrically surrounding the communication port. Also included is a slidable communication mechanism housed in the tubular guide portion for communicating an inside of the solvent vessel and an inside of the drug vessel. Furthermore, also included is a cap for housing the vial guide and for rotatably sealing an opening of the guide portion, and a drug vessel push-down mechanism for moving the drug vessel down towards the communication port of the solvent vessel.

Abstract: A transfusion device comprising a flexible vessel containing a solvent fluid, a plugged drug container containing a drug, and a communicating portion for communicating the vessel and the container with each other, the communicating portion comprising a communicating passage disposed at a top portion of the flexible vessel and having the drug container partially or wholly fitted therein, a plugged mouth portion of the container facing downward, a membrane disposed in the communicating passage for closing the passage, and a particular puncturing needle unit mounted in the communicating passage for enabling the vessel and container to communicate with each other. When the puncturing needle unit is pressed externally through the flexible vessel, the needle breaks the membrane and the plug member of the drug container to enable the vessel and container to communicate with each other.

Abstract: A transfusion device comprising a flexible vessel containing a solvent fluid, a drug container containing a drug, and a communicating portion for communicating the vessel and the container with each other, the commuicating portion comprising first and second passages adapted to communicate with the vessel and container and held in engagement with each other, a membrane and a plug member which are provided for closing the two communicating passages, and a particular cap held in thread engagement with the second communicating passage for enabling the two passages to communicate with each other.When the vessel and the container are rotated relative to each other, the cap slides to disengage the plug member of the second communicating passage and break the membrane of the first communicating passage, thereby allowing the vessel and the container to communicate with each other.

Abstract: A fluid container assembly including a flexible vessel containing a solvent or diluent and having a fluid communicating port in an upper portion thereof, a drug container containing a drug and having a drug communicating port in a lower portion thereof, and a connecting part for connecting the fluid communicating port of the flexible vessel to the drug communicating port of the drug container, wherein the connecting part includes a plug removably fitted into both the fluid communicating port and the drug communicating port and a plug holding extendable member for holding the plug while unplugging the same when assuming its extended position, the member connecting the outer periphery of the fluid communicating port to the outer periphery of the drug communicating port and defining a fluid communicating path.

Abstract: Disclosed is a fluid container having a flexible bag containing a diluent and having a closing film at its upper end, a capsule connected to the flexible bag, a drug container held in the capsule and a communicating member for communicating the flexible bag with the drug container. The communicating member has a double-edged hollow needle having a hub in the midway thereof, and a controlling mechanism for controlling the order of communication in such a manner that the plug of the drug container is stuck with one edge of the needle and thereafter the closing film of the flexible bag is stuck with the other end of the needle. The mixing procedure is sure and simple, and can be carried out in a short period of time.