System for administration of a liquid agent to a patient with a

Details System for administration of a liquid agent to a patient with a System for administration of a liquid agent to a patient with a

1996-07-23

1998-02-03

Buiz, Michael Powell

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604205, 604201, 604218, 604411, A61M 524, A61M 528

Patent

active

057138753

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.

REFERENCES:
patent: 3850174 (1974-11-01), Ayres
patent: 4169475 (1979-10-01), Genese
patent: 4182326 (1980-01-01), Ogle
patent: 4191225 (1980-03-01), Ogle
patent: 4365626 (1982-12-01), House
patent: 5019052 (1991-05-01), Rohrbough
patent: 5380281 (1995-01-01), Tomellini et al.

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