Syringe protective structure

Details Syringe protective structure Syringe protective structure

2005-06-21

2005-06-21

Kennedy, Sharon (Department: 3762)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

06908450

ABSTRACT:
This invention discloses a syringe protective structure comprising a barrel which is a hollow cylinder having an opening disposed at a front end of the barrel, a barrel chamber therein, and a front blocking section and a rear blocking section inwardly protruded towards the opening proximate to a rear end of the barrel to define a blocking groove; and a relay base which is a hollow cylinder sheathed into the barrel chamber and has a base protrusion protruded from a front end of the relay base and an embedded hole disposed at the rear end of the relay base and interconnected with the base protrusion, and at least two resilient brackets being protruded from the periphery of the bottom of the base; by means of pushing the plunger of a liquid medication tube and the embedded hole forward, the liquid medication tube together with the push rod and the relay base move forward to the front of the barrel, such that the base protrudes out of the barrel opening and allows the needle to draw liquid medication into the barrel, and after the injection, the barrel is pushed forward to latch and fix the resilient brackets into the blocking groove.

REFERENCES:
patent: 4973308 (1990-11-01), Borras et al.
patent: 4978340 (1990-12-01), Terrill et al.
patent: 5415648 (1995-05-01), Malay et al.
patent: 6077245 (2000-06-01), Heinrich et al.
patent: 6149630 (2000-11-01), Robinson

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