Prefilled hypodermic syringe system
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United States of America Patent
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-
Jan 6, 1998
Grant Date -
N/A
app pub date -
Oct 6, 1995
filing date -
May 17, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hypodermic syringe and method of filling the syringe with an injection fluid. The syringe includes a fluid chamber for retaining an injection fluid and a plunger assembly for expelling fluid from the chamber. The plunger assembly includes a plunger slidably disposed in the fluid chamber for creating positive pressures to cause ejection of a fluid from the chamber and an actuator coupled to the plunger for movement of the actuator between a first position with the actuator released for movement of the actuator through the fluid chamber relative to the plunger and a second position with the actuator in cooperative engagement with the plunger for driving the plunger to create the positive pressures.
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