초록 ▼

A kit for mixing comprises a housing accommodating an ampoule containing a solid and a container containing a solvent which is either pre-pressurized or which may be pressurized when it is desired to mix to the liquid and solid components. A needle unit comprises a first needle, the opposite ends of

A kit for mixing comprises a housing accommodating an ampoule containing a solid and a container containing a solvent which is either pre-pressurized or which may be pressurized when it is desired to mix to the liquid and solid components. A needle unit comprises a first needle, the opposite ends of which pierce rubber membranes closing the ampoule and the container, to establish a transport channel through which pressurized solvent flows from the container to the ampoule. The ampoule is vented through a second needle inserted through the membrane of the ampoule and provided with a micro-filter. In one embodiment, the needle unit is displaceable to cause the ends of the needles to pierce the respective membranes, and locked in place by a spring biased locking mechanism. A branch passage from the needle is connected to a cylinder containing a piston coupled to the locking mechanism. When the ampoule is full, pressure in the branch passage will rise, actuating the piston and releasing the locking mechanism. In an alternative embodiment, the needle mechanism is stationary, and the ampoule and container are moved into engagement with the respective needle ends.

대표청구항 ▼

[ We claim:] [1.] A kit for storage and mixing of components in which at least one is liquid, comprising:a housing accommodating a container which contains a solvent and is closed by a pierceable membrane, means for pressurizing the solvent in the container, and a cylinder ampoule having a first end

[ We claim:] [1.] A kit for storage and mixing of components in which at least one is liquid, comprising:a housing accommodating a container which contains a solvent and is closed by a pierceable membrane, means for pressurizing the solvent in the container, and a cylinder ampoule having a first end closed by a pierceable membrane, anda needle unit with needles which by an actuating movement, such actuating movement constituting a relative movement between the needle unit and the container and ampoule, pierce the respective membranes, the needles comprising a first needle with a first and second pointed ends for piercing the ampoule membrane and the container membrane, respectively, and a second needle having a pointed first end piercing the ampoule membrane by the actuation movement and a second end opening to the atmosphere through a semipermeable membrane.