Medication infusion pump
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United States of America Patent
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Aug 28, 1984
Issued Date -
N/A
app pub date -
Jul 20, 1983
filing date -
Apr 10, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An extracorporeal medication infusion device provides a precise infusion rate of a liquid medication into a human or animal body. The infusion device includes a permanent portion which has a case, a battery, a programmable electronic controller, and an electromagnetic solenoid core and solenoid coil for providing an actuation force. The infusion device also includes a disposable portion which includes a reservoir filled with a liquid medication that is to be dispensed and a pump for pumping the medication from the reservoir into the user's body. The pump includes a pump chamber and a piston connected to an electromagnetic armature for altering the volume of the pump chamber in response to the actuation force.
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