Lead screw driven reservoir with integral plunger nut and method of using the same
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United States of America Patent
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Jun 24, 2008
Grant Date -
Sep 9, 2004
app pub date -
Mar 5, 2003
filing date -
Mar 5, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An improved reservoir is provided for use in a medication infusion device for operating the reservoir to administer a fluid to a patient. The reservoir comprises a hollow barrel adapted to receive a supply of fluid for delivery through infusion tubing or the like to the patient, in combination with a reservoir plunger. The reservoir plunger is designed to engage a motor-driven lead screw of the medication infusion device. The reservoir plunger has an integral split nut connector formed on the end of the plunger, which is in co-axial alignment with the lead screw whereby the split nut connector can be engaged directly to the lead screw.
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