Infusion method and infusion pump
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United States of America Patent
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-
Nov 23, 1999
Grant Date -
N/A
app pub date -
May 22, 1997
filing date -
Nov 28, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
According to an infusion method and pump, in order to perform infusion at a flow rate with high accuracy by allowing finger members to appropriately press a predetermined portion of an outer diameter (outer surface) of an infusion tube whose outer diameter accuracy is assured, thereby causing the infusion tube to perform a peristaltic motion, the infusion tube is stationarily held between a plurality of fingers which are arranged along the longitudinal direction of the infusion tube having a predetermined outer diameter and independently driven, and a holding means. The infusion tube is pressed from the outer surface to supply a liquid by setting a small moving amount of each finger to a degree enough to eliminate the influence of the wall thickness of the infusion tube and individually driving the fingers.
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