Disposable fluid injection module

Details Disposable fluid injection module Disposable fluid injection module

1997-10-27

2000-04-04

McDermott, Corrine

Surgery

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

Treating material introduced into or removed from body...

604 30, 604 65, 604140, A61M 6502

Patent

active

060455349

ABSTRACT:
An automated injection module is comprised of a housing, a piston drug capsule disposed within the housing, a piston core including a puncture seal membrane defining a reservoir for holding a drug between the puncture seal membrane and the piston drug capsule, an injection device having at least one sharp end for puncturing the puncture seal upon activation of the device, an end cap on a distal end of the housing, and a pressure source on a proximal end of the housing. The pressure source is preferably a propellant that ignites and forces the piston toward the distal end. Substantially simultaneously, the injection device pierces the puncture seal membrane, the piston core is forced into the piston drug capsule, and the drug is evacuated from the reservoir through the injection device and into a patient.

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