Infusion device with disposable elements
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United States of America Patent
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Jun 1, 2004
Grant Date -
Apr 3, 2003
app pub date -
Nov 7, 2002
filing date -
May 17, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.
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