Manual dispensing aid for a syringe
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United States of America Patent
Stats
-
Mar 18, 1997
Issued Date -
N/A
app pub date -
Dec 16, 1994
filing date -
Jun 30, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A releasably attachable manual dispensing aid is operable with a syringe having a syringe body and a syringe plunger that is movable within the syringe body. The dispensing aid includes a dispensing aid body that is releasably attachable to the syringe body. The dispensing aid further includes a dispensing aid plunger that is attachable to the syringe plunger, and has a slide that is slidable within the dispensing aid body. A fine adjustment, bottom stop, Chaney stop, and/or drag brake for the slide are optionally provided. An electronic linear position measuring device has a first portion fixed to the dispensing aid body and a second portion fixed to the dispensing aid plunger. Optionally, the dispensing aid includes a microprocessor that receives as inputs a calibration value for a particular syringe and the position signal, and determines as an output signal the true volume of liquid displaced by the syringe plunger movement.
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