Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2008-05-13
2008-05-13
Mendez, Manuel (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
Reexamination Certificate
active
07371226
ABSTRACT:
A plunger of a syringe characterized by a hook unit formed integrally at the front end of the stopper of thereof. The hook unit comprises a central rod and a push wing extended outwardly from a lateral wall of the central rod. The push wing can be attached to the central rod by a lateral force, which is urged during an insertion process, so that the hook unit will be inserted into a receptacle formed at the rear end of the needle hub in the axial direction. The receptacle has an entrance hole and a cavity lager then the hole, whereby the flexible push wing will be extended again after the unit is in the cavity, forming a locked configuration. As the plunger is pulled back, the needle mount will be pulled into the needle barrel accordingly, achieving a function of self destruction.
REFERENCES:
patent: 5242400 (1993-09-01), Blake et al.
patent: 5575774 (1996-11-01), Chen
patent: 6488656 (2002-12-01), Wu
patent: 6921382 (2005-07-01), Lee et al.
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