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A medical intravenous line coupling device can be secured to standard “y”shaped junction tube. The device can comprise a single member which fits with the junction tube and has passages shaped to receive and secure with the junction arm. A “b”shaped slot can be provided in the member for that purpos

A medical intravenous line coupling device can be secured to standard “y”shaped junction tube. The device can comprise a single member which fits with the junction tube and has passages shaped to receive and secure with the junction arm. A “b”shaped slot can be provided in the member for that purpose. The container can have a menas for receiving a liquid for injection into the intravenous system, such as a receptacle, and a means for allowing liquid flow from the receiver into the junction tube, such as a needle. The device may include a second member which has a passage to interact with the junction arm. One member can fit about the other and be rotatably mounted hereto. The junction arm can be received by the two members when they are in a first position relative to one another, and can be secured when the members are moved relative to each other. With the two member assembly, the receiver, such as the receptacle, and the liquid flow means, such as the needle, can be mounted to the first or second member. Structure, such as a nib projecting into a slot, can be provided to resist movement of the arm out of a secure relationship. Means, such as an interacting projection and a recess, can hold the two members in the more secure position.

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A medical device for securing the connection of a liquid source with a junction section of a tubing system which can be connected with a patient\s blood vessel, the junction section having a truck section which is substantially straight and an arm section extending at an angle from the trunk and in

A medical device for securing the connection of a liquid source with a junction section of a tubing system which can be connected with a patient\s blood vessel, the junction section having a truck section which is substantially straight and an arm section extending at an angle from the trunk and in liquid flow connection therewith, the device comprising: a generally elongated tube having a bore for receiving the trunk of the junction tube, the tube having a generally longitudinal slot with an opening for slidingly receiving the arm of the junction tube so that the elongated tube can be moved to fit about the trunk when the arm is aligned with the slot opening and the elongated tube is moved in a generally longitudinal direction relative to the junction tube and a second tube coupled to said elongated tube and having a distal end and having a bore sized to receive the first tube, the second tube having a second slot, the said second slot having a first section and a second section, the first slot section having an opening at the distal end of the second tube, the second slot section having an end and having an opening that connects with the first slot section so that the arm can pass from the first slot section into the second slot section, the first and second slots being positioned relative to the first and second tubes, respectively, so that the first and second tubes can be put in a first position to allow the junction arm to be within the first slot and within the first section of the second slot to allow the junction tube to be moved away from the first and second tubes to be disconnected therefrom, and so that the second tube and first tube can be rotated relative to one another to a second position so that the junction tube is blocked from disconnection from the second tube when the junction tube is moved relative to the second tube in any single direction of motion.