Syringe Pump
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United States of America Patent
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N/A
Issued Date -
Jan 29, 2004
app pub date -
Jul 29, 2002
filing date -
Jul 29, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is an adjustable re-usable syringe actuator that delivers liquid at a substantially constant rate that is unaffected by a change in the viscosity of the liquid being pumped. The disposable syringe actuator is well suited for the infusion of small to medium volumes of liquid medication at low flow-rates. A preferred embodiment includes a purely mechanical device with no need for electricity, thereby providing a high level of patient mobility. The spring-powered device uses a variable length elongated flow regulation passageway to regulate the rate at which the spring depresses the syringe plunger. Thus, the rate of medication infusion is regulated by varying the length of the flow regulation passageway.
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