Adjustable dosage syringe
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United States of America Patent
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N/A
Issued Date -
Oct 18, 2007
app pub date -
Mar 12, 2007
filing date -
Mar 13, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is directed to determining, without repeated calculation by an operator, the volume of a non-solid composition remaining in the barrel of a syringe after discharge of a dose of the composition. The present invention provides a syringe barrel, and a plunger having a dose volume scale disposed along the longitudinal axis and orientated such that the numeric values increase in the direction from the proximal end of the plunger towards the discharge end. The dosage syringe also comprises an adjustable dose selector that may be moved to a volume mark of the scale corresponding to a desired dose to be delivered. The dose syringe barrel further comprises an indicator means that may be an opening in the barrel directly above the dose volume scale such that, when the plunger is in a fully retracted position, the window shows the volume of the full capacity of the syringe barrel and when the plunger is depressed, will show the remaining volume in the syringe.
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