Apparatus for controlling the flow of an infusion fluid in an infusion system
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United States of America Patent
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-
Mar 20, 1990
Grant Date -
N/A
app pub date -
Nov 30, 1988
filing date -
Dec 17, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for controlling the flow of an infusion fluid in an infusion system with a drip chamber and a deformable tube, is provided with a sensor for detecting the drops of infusion fluid falling in the drip chamber, means for seting a desired flow rate, pinch clamp means for pinching off the deformable tube and a processing unit for controlling the pinch clamp means is dependence of the set desired flow rate and the signal of the sensor. The pinch clamp means is movable with a variable speed between a rest position in which the tube is fully released, and a closed position in which the tube is fully closed. The speed in a controlling range preceding the closed position is substantially lower than the speed adjacent the rest position.
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