Flush syringe having compressible plunger
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United States of America Patent
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Nov 11, 2014
Issued Date -
N/A
app pub date -
Mar 19, 2013
filing date -
Oct 11, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An I.V. flush syringe assembly includes a barrel having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end with a passageway therethrough in fluid communication with the chamber. An elongate plunger having a proximal end, a distal end and a stopper is slidably positioned in fluid-tight engagement with the inside surface of the barrel for drawing fluid into and out of the chamber by movement of the stopper relative to the barrel. The plunger includes anti-reflux structure for minimizing stopper deflection when fluid has been delivered from the chamber and the stopper is being forced against the distal end of the chamber.
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