Syringe assembly

Details Syringe assembly Syringe assembly

2007-01-02

2010-06-01

Lucchesi, Nicholas D (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

07727183

ABSTRACT:
A syringe assembly consists of two basic types of assembly units: a dispensing unit, and a separate, independent plunger unit. The dispensing unit and the plunger unit are assembled together coaxially to form a two-unit syringe assembly for storage or prior to use. At least the dispensing unit is a container for a material to be dispensed and, by inserting one or more extension units between the dispensing unit and the plunger unit, additional compartments may be added. Each extension unit may contain a different component of a formulation in any predetermined quantity. The syringe assembly allows the user to store one or more components of a formulation in separate individual units that can be assembled easily into a single multi-compartment syringe assembly, which can store the multiple components separately until they are ready for use, at which time the components may be mixed to form the formulation.

REFERENCES:
patent: 4159570 (1979-07-01), Baskas
patent: 5281198 (1994-01-01), Haber et al.
patent: 5489267 (1996-02-01), Moreno
patent: 6616627 (2003-09-01), Willis
patent: 6743194 (2004-06-01), Sharon

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