Winged medical needle device

Details Winged medical needle device Winged medical needle device

2008-05-06

2008-05-06

DeSanto, Matthew F. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S263000

Reexamination Certificate

active

07367962

ABSTRACT:
The configuration of the present invention includes a winged shield that has a cylindrical shield tube and wings linked to a front end side of the shield tube, a hub that is inserted into an inner bore of the shield tube so as to be movable in an axial direction, and a cannula that is mounted to a front end portion of the hub. By engaging a protrusion with a third annular groove, the hub is held with the winged shield in a state where the cannula protrudes for a predetermined length from a front end of the shield tube. In a state where an inward annular protrusion of the shield tube is engaged with a first holding portion, a tip of the cannula can be stored in the shield tube. By engaging the protrusion of a holding mechanism with a first annular groove, the hub is held with the shield tube so as not to be moved within the shield tube.

REFERENCES:
patent: 5088982 (1992-02-01), Ryan
patent: 2005/0234408 (2005-10-01), Chong et al.
patent: 1-212561 (1989-08-01), None
patent: 91/04761 (1991-04-01), None
patent: WO 03033055 (2003-04-01), None

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