Wet-dry additive assembly

Claim 1

A double vial Assembly for storing a medicament, comprising: first vial means defining a chamber therein and having a first elongated sleevelike end portion of reduced diameter, said first sleevelike end portion having a first flow opening therethrough for providing the only communication with said chamber; perforable seal means blocking said first opening, said seal means being spaced inwardly from the outer end of said first opening as defined adjacent the free end of said first sleevelike end portion; second vial means defining a chamber therein and having a second elongated sleevelike end portion of reduced diameter, said second sleevelike end portion having a second flow opening therethrough for providing the only communication with said chamber in said second vial means; perforable stopper means blocking said second flow opening, said perforable stopper means being spaced inwardly of said second sleevelike opening from the outer end thereof as defined adjacent the free end of said second end portion; elongated double ended cannula means extending between said first and second vial means, said cannula means having one end portion thereof loosely but slidably disposed within said first sleevelike end portion, the other end portion of said cannula means being loosely but slidably disposed within said second sleevelike end portion; support means disposed in surrounding relationship to said cannula means and fixedly secured thereto at a location disposed between the ends thereof, said support means including a portion disposed in snug, slidable, telescopic engagement with said second sleevelike end portion; releasable detent means coacting between said portion of said support means and said second sleevelike end portion for resisting movement of said cannula means relative to said second vial means; removable tubular sheath means surrounding said cannula means and extending between said first and second vial means for connecting same together, said sheath means including a first annular end portion having first and second sleevelike parts of different diameters disposed in surrounding relationship to said first sleevelike end portion and said first vial means, respectively, and disposed in snug slidable engagement therewith; said sheath means including a second annular end portion having first and second sleevelike parts of different diameters disposed in surrounding relationship to said second sleevelike end portion and said second vial means, respectively, and disposed in snug slidable engagement therewith, whereby said sheath means can be slidably disconnected from both said first and second vial means; and means, including releasable detent means, coacting between said first sleevelike end portion and said sheath means for resisting relative movement of said sheath means toward said first vial means.