Single-use syringe

Details Single-use syringe Single-use syringe

2007-11-05

2010-06-22

Sirmons, Kevin C (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S220000

Reexamination Certificate

active

07740610

ABSTRACT:
An operable single-use syringe includes a barrel having an inside surface defining a chamber for retaining fluid and an open proximal end. A plunger rod having an elongate body portion and a stopper at its distal end slidably positioned in fluid-tight engagement in the barrel. A locking element is positioned in the barrel between the plunger rod and the inside surface of the barrel. The locking element has a base and two leg members projecting therefrom that are positioned in longitudinal grooves in the plunger rod. The locking element only moves distally in the barrel and prevents re-use of the syringe after its contents have been discharged.

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ISR From PCT/US05/22427, Oct. 18, 2005, 3 pgs.
Written Opinion From, PCT/US05/22427, Oct. 18, 2005, 5 pgs.

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