| 摘要 |
A preloaded, readily activated, disposable syringe wherein a first fluid diluent is sealed in a vial and is adapted to be received by a holding means in a syringe barrel. A second vial containing a fluid medicament is adapted to be engaged by a second holding means in the form of an adapter which is movable over the outside of the syringe barrel. A double-pointed cannula is positioned in the syringe barrel and has a hub with two frictional stop portions in conjunction with the syringe barrel. Upon movement of the adapter in the direction of the syringe barrel, one end of the cannula will pierce through the stopper secured to the adapter. Upon further movement of the adapter, it will contact the cannula hub and move it from a first retentive position to a second to thereby pierce the second stopper and provide fluid communication between the two vials. After mixing, the vial secured to the adapter will be emptied by moving it in a direction toward the syringe. This movement will then load the syringe vial with all of the medicament material. The adapter with its vial is then removed and the syringe is utilized in the usual manner.
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