Wet dry syringe package

Claim 1

A wet-dry syringe assembly adapted for storage in a prearmed condition ready for instant arming, said assembly consisting of: (1) a syringe having a cylindrical barrel open at its rearward end and closed at its forward end, a piston slidably carried within the barrel adjacent the rearward end to close that end off and form a liquid chamber between the forward end of the piston and the closed end of the cylindrical barrel, a needle positioned in the forward closed end of the cylindrical barrel with its inner end in direct communication with the liquid chamber to establish fluid communication between the liquid chamber and the forward exposed end of the needle, (2) a syringe adapter fitting over the forward end of the syringe, said syringe adapter comprising an enlarged head portion snugly engaging and fitting on the forward end of the syringe barrel, a tubular needle guide portion of reduced diameter extending forwardly from the head portion, the length of said tubular portion being less than the needle it surrounds, (3) a medicament vial adapted to carry the dry medicament and to receive the liquid stored in the syringe, said vial having a closed bottom and open top portion, a stopper for closing the open top portion, a retaining member for holding the stopper in the vial, (4) a vial adapter fitting on the top portion of the vial said vial adapter comprising a base portion affixed to the stoppered end of the vial, a tubular guide projecting outwardly from the base, said guide having an inner diameter sized to fit over a portion of the needle guide of the syringe to provide for telescopic action therebetween, (5) cooperating means on the inner surface of the tubular guide on the vial adapter and the outer surface of the needle guide of the syringe adapter to maintain the syringe and the vial in spaced prearmed storage position wherein the forward end of the syringe needle is embedded in the vial stopper, to thereby insure complete sterility between needle, liquid chamber and vial and to maintain the syringe and the vial in armed position with the end of the needle projecting through the stopper into the vial to establish fluid communication between the syringe medicament chamber and the vial.