Valve device to aid in reconstituting injectable powders
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United States of America Patent
Stats
-
Sep 24, 1985
Grant Date -
N/A
app pub date -
Mar 28, 1984
filing date -
Mar 28, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for use in equalizing the pressure inside a vial during the addition or removal of fluid comprising a one piece sterilizable device for use in equalizing the pressure inside a vial during the addition or removal of fluid which comprises a cannula having a sharpened beveled lower end for puncturing the septum of a vial, a blunt upper end covered with a septum that can be punctured by the needle of a hypodermic syringe, and an enlarged annular portion below the blunt upper end limiting entry of the device into the vial, said enlarged annular portion having an air channel leading from the inside of the cannula through the enlarged annular portion to the outside of the cannula said air channel being provided at its outer end with means for one-way air flow.
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