Safety syringe

Details Safety syringe Safety syringe

2005-12-27

2005-12-27

Thanh, LoAn H. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S218000, C128S919000

Reexamination Certificate

active

06979314

ABSTRACT:
A safety syringe has a hollow barrel, a plunger, a connector, a plug and a needle hub. The plunger has a protrusion extended from the plunger and along a longitudinal axis of the plunger. The connector is mounted around the protrusion of the plunger. Multiple limit stubs and multiple curved limit channels communicating with a corresponding notch with an inclined side-wall are respectively formed on the connector and a connecting chamber in a connecting tube of the needle hub. When the plunger is being pushed towards the needle hub, the multiple limit stubs respectively pass through the corresponding curved limit channel and are contained in the corresponding notch. The inclined side-wall of the notch will stably connect the limit stub so the plunger can stably retract the needle hub in the hollow barrel.

REFERENCES:
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patent: 5968019 (1999-10-01), Lee
patent: 6344031 (2002-02-01), Novacek et al.
patent: 6706015 (2004-03-01), Bang
patent: 2003/0212366 (2003-11-01), Bang
patent: 2004/0082911 (2004-04-01), Tiu et al.

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