Syringe pump and the like for delivering medication
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 5, 1993
Grant Date -
N/A
app pub date -
Apr 25, 1990
filing date -
Apr 25, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A syringe pump comprises a housing with a syringe retainer. The syringe includes a barrel for liquid medication and a plunger movably positioned in the barrel for expelling the medication. A driver is movably mounted on the housing for engagement with the plunger. A control mechanism within the housing regulates the rate of movement of the driver and plunger during delivery of medication. A monitoring circuit connected to receive signals from a potentiometer and a movable contact associated with the driver indicates driver motion. A microprocessor with memory includes a preset standard to which the signal of motion from the driver is compared. An additional input signal, of motion from a rotary indicator associated with a part of the driver movement motor assembly, is provided to the memory and is compared to plunger travel into the barrel.
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Family
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