Disposable syringe with two variable volume chambers

Details Disposable syringe with two variable volume chambers Disposable syringe with two variable volume chambers

1996-03-06

1998-07-28

Buiz, Michael

Surgery

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

Treating material introduced into or removed from body...

604228, A61M 3700

Patent

active

057856834

ABSTRACT:
The invention relates to a pre-filled disposable syringe to be used in the administration of powdered drug diluted at the time of injection. The novelty resides in that the plunger head, along with an elastomer head, constitute a particular valve acting as a function of plunger displacements.

REFERENCES:
patent: 3464412 (1969-09-01), Schwartz
patent: 3511239 (1970-05-01), Tuschhoff
patent: 3680558 (1972-08-01), Kapleowitz
patent: 4610669 (1986-09-01), Meyer et al.
patent: 4613326 (1986-09-01), Szwarc
patent: 5226881 (1993-07-01), Pickhard
patent: 5246423 (1993-09-01), Farkas

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