Medication infusion pump with flexible drive plunger
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United States of America Patent
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-
Jun 10, 1997
Grant Date -
N/A
app pub date -
Jan 13, 1995
filing date -
Jan 13, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A medication infusion pump is provided for controlled delivery of medication to a patient, wherein the pump includes a space-efficient flexible drive plunger for advancing a piston within a medication-containing syringe or cartridge for administration of the medication to a patient. The infusion pump comprises a compact housing defining a syringe chamber for receiving and supporting the barrel of a medication-containing syringe or cartridge having a nose end adapted for luer connection to catheter tubing through which the medication is delivered to the patient. An open rear end of the syringe barrel carries a piston which can be advanced in a controlled manner to dispense the medication. In the preferred form, the flexible drive plunger comprises a spring tape with a free end adapted for removable connection to the piston. The spring tape extends within the pump housing through a space-efficient curved path and is associated with a pump drive motor for advancing the piston within the syringe barrel to deliver the medication to the patient.
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