Hypodermic injector system and method for maintaining the sterility thereof prior to use
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United States of America Patent
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Feb 17, 1998
Grant Date -
N/A
app pub date -
Jun 10, 1996
filing date -
Jun 10, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A syringe for use in connection with a pre-filled medicament cartridge that is sealed on one end by a pierceable seal and on the other end by a plunger supported therein. The syringe includes a plunger rod for axially advancing the plunger within the cartridge to discharge the medicament therefrom. The plunger rod is also attachable to the syringe body prior to use. A sheath is provided to cover the portion of the double ended cannula that protrudes from the syringe body. The sterile syringe body/plunger rod and sheath assembly serve to maintain the sterility of the cannula prior to use.
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