Injection syringe with mobile needle guard

Details Injection syringe with mobile needle guard Injection syringe with mobile needle guard

2005-05-17

2005-05-17

Lucchesi, Nicholas D. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S201000, C604S110000

Reexamination Certificate

active

06893423

ABSTRACT:
The injection syringe has at least one syringe body (12) provided with a needle (22) and a pusher (14) mounted so as to be able to move in the body (12). The syringe has a movable guard (36) for protecting the injection end (22A) of the needle. The guard (36) is able to move with respect to the body (12) between a position retracted in the body (12) and an active protection position. The guard (36) and the body (12) have associated projecting and recessed reliefs for holding the guard in a retracted position. It has a retractable member (70) for positive holding of the engagement of the said associated reliefs, when the guard (36) is in a retracted position. The pusher (14) and the said holding member (70) are adapted for a retraction of the said holding member (70) under the action of the pushing in of the pusher (14) into the body, at the end of injection, providing a release of the positive holding of the engagement of the associated reliefs.

REFERENCES:
patent: 4887998 (1989-12-01), Martin et al.
patent: 5720727 (1998-02-01), Alexander et al.
patent: 5882342 (1999-03-01), Cooper
patent: 5891092 (1999-04-01), Castellano
patent: 6565540 (2003-05-01), Perouse et al.
patent: 6569124 (2003-05-01), Perouse
patent: 6679864 (2004-01-01), Gagnieux et al.
patent: 2757066 (1998-06-01), None
patent: WO 9300949 (1993-01-01), None
patent: WO 0056383 (2000-09-01), None

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