Winged angled needle assembly

Details Winged angled needle assembly Winged angled needle assembly

2007-11-06

2007-11-06

Lucchesi, Nicholas D. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

11206097

ABSTRACT:
A winged angled needle assembly has a hub to which a proximal end portion of an angled needle having a sharpened tip portion is joined and a pair of wings attached to both sides of the hub and further includes a fixing member attached so as to support the wings and an extensible, contractible needle guard disposed between the hub and the fixing member so as to connect these two members. The guard extends in the direction from the proximal end portion to the sharpened tip portion of the angled needle when extended, so that the tip portion can be encased in said guard simultaneously with pulling the angled needle out of an implanted port. The guard has an exposure prevention mechanism attached thereto and is externally stopped, so that the sharpened tip portion is kept from exposing once it is encased in the guard. The angled needle can have a length as required regardless of the length of the wings. The fixing member supports the wings opened to be coplanar with each other, serves to stably fix the winged angled needle assembly to an implanted port in an installed state and also works as a support for pulling the angled needle out of the port, so that the winged angled needle assembly can minimize the mental stress of a patient.

REFERENCES:
patent: 4631058 (1986-12-01), Raines
patent: 6537255 (2003-03-01), Raines
patent: 6824530 (2004-11-01), Wagner et al.
patent: 6997902 (2006-02-01), Thorne et al.
patent: 2002/0111581 (2002-08-01), Sasso
patent: 2006/0047252 (2006-03-01), Ono
U.S. Appl. No. 11/391,320, filed Mar. 29, 2006, Ono et al.

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