System for administration of a liquid agent to a patient with a syringe pump
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United States of America Patent
Stats
-
Feb 3, 1998
Grant Date -
N/A
app pub date -
Jul 23, 1996
filing date -
Jul 29, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system is provided for accommodating the use of a syringe pump to inject a liquid agent into a patient from a vial having an internal chamber occluded at one end by a stopper located in the chamber to sealingly engage the vial and slide within the chamber. The system includes a plunger having a bearing end to be engaged by a movable pushing member of the syringe pump and having a drive end adapted to engage the stopper. A hollow piercing needle is mounted to the plunger to be connected in fluid communication with the patient and has a piercing end to penetrate the stopper. The needle moves with the plunger and stopper relative to the chamber as the liquid is discharged from the vial.
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