Infusion pump system
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United States of America Patent
Stats
-
May 28, 1985
Grant Date -
N/A
app pub date -
Dec 6, 1982
filing date -
Dec 6, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An infusion pump system is described containing a valved cassette which is used as a pumping chamber for conducting fluid from an upstream portion to a downstream portion of the system. The removable cassette contains magnetically biased valves at both ends. Externally mounted magnets bias the valves within the cassette to provide an opening of the inlet valve and closing of the output valve during the fill cycle and closing of the inlet valve and opening of the outlet valve during the pump cycle. Free flow of infusion fluid is allowed when the valved cassette is removed from the pump mounting member which houses the actuating magnets and the reciprocating actuator for the pumping chamber.
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