Plunger of a syringe

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

Reexamination Certificate

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Details

C604S228000

Reexamination Certificate

active

10829289

ABSTRACT:
A plunger of a syringe includes a shank partially movably received in a barrel of the syringe. The shank includes a first end having a thumb rest radially extending therefrom and a second end having a stub longitudinally extending from the shank. The stub includes a stopper radially extending therefrom and a mushroom-shaped connector formed on a distal end of the stub. At least one annular flange radially extends from the stub between the stopper and the mushroom-shaped connector. A rubber bulb is securely longitudinally mounted to the stub, abuts the stopper and fully contains the at least one annular flange and the mushroom-shaped connector. The rubber bulb is previously formed and connected with the shank when inject molding the shank.

REFERENCES:
patent: 2895773 (1959-07-01), McConnaughey
patent: 4944723 (1990-07-01), Haber et al.
patent: 5205823 (1993-04-01), Zdeb

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