Safety non-coring needle

Details Safety non-coring needle Safety non-coring needle

2007-06-12

2007-06-12

Lucchesi, Nicholas (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

10989370

ABSTRACT:
Provided is a non-coring needle for venous access implantatable port. In one embodiment the non-coring needle comprises a puncturing assembly comprising two wings having a central sleeve, an L-shaped needle coupled to the sleeve, the needle including an annular groove or enlargement on its bent portion, and a plastic tubing coupled to the sleeve; and a syringe barrel comprising an internal chamber having a forward opening, and an elongate slot formed on the syringe barrel and being in communication with the chamber. The groove or enlargement is located at a first dent of the slot when the needle is concealed in the chamber in a non-use position, the groove or enlargement is located at a forward second dent of the slot when the needle is fully extended from the opening for use, and the groove or enlargement is permanently locked at a rear triangular recess of the slot when the needle is fully retracted into the chamber.

REFERENCES:
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patent: 5219339 (1993-06-01), Saito
patent: 5562636 (1996-10-01), Utterberg
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patent: 5997504 (1999-12-01), Bell
patent: 6623462 (2003-09-01), Guzzo et al.
patent: 6676633 (2004-01-01), Smith et al.
patent: 6824530 (2004-11-01), Wagner et al.
patent: 6939331 (2005-09-01), Ohshima
patent: 2002/0169425 (2002-11-01), Guzzo et al.

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