Needle assembly

Details Needle assembly Needle assembly

2005-12-13

2005-12-13

Marmor, Charles (Department: 3736)

Surgery

Diagnostic testing

Liquid collection

C600S573000, C604S192000, C604S403000, C604S412000

Reexamination Certificate

active

06974423

ABSTRACT:
A blood collection needle assembly includes a holder body having a tube receiving chamber and a needle receiving chamber. A proximal needle is mounted to the holder body and projects into the tube receiving chamber. A distal needle is slidably mounted in alignment with the needle receiving chamber. A spring is provided to urge distal needle into the needle receiving chamber, and a trigger is provided for selectively permitting or preventing proximal movement of the distal needle. A transverse passage between the two needles is formed from a transparent material and provides indication of venus axis. The blood collection needle assembly is used to collect a sample of blood in a conventional manner. After collection of the blood, the trigger is actuated to release the distal needle and the spring propels the distal needle in a proximal direction for safe shielding within the needle receiving chamber of the holder body.

REFERENCES:
patent: 5085640 (1992-02-01), Gibbs
patent: 5263942 (1993-11-01), Smedley et al.
patent: 5531694 (1996-07-01), Clemens et al.
patent: 5709667 (1998-01-01), Carilli
patent: 5800395 (1998-09-01), Botich et al.
patent: 5897508 (1999-04-01), Konrad
patent: 6063040 (2000-05-01), Owen et al.
patent: 2003/0060760 (2003-03-01), Botich et al.
patent: 1 027 864 (2000-08-01), None
patent: WO 98/24493 (1998-06-01), None

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