Device and method for pre-treating and injecting liquid...

Details Device and method for pre-treating and injecting liquid... Device and method for pre-treating and injecting liquid...

2006-07-11

2010-11-23

Warden, Jill (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

C073S001740, C073S441000, C422S091000, C422S105000, C604S089000, C604S191000, C604S220000

Reexamination Certificate

active

07837943

ABSTRACT:
A device for pre-treating and injecting a liquid specimen includes a first syringe including an open top first tube including a first hole in the bottom and protrusions, a second syringe including an open top second tube including a second hole in the bottom and an inner diameter greater than an outer diameter of the first tube, a second piston movable along an inner wall of the second tube and including a third hole and a communication channel providing fluid communication between the first hole and the third hole, and a joint portion attachable to and detachable from a top of the second tube and including an opening corresponding to a transverse cross-section of the first tube and grooves corresponding to the shape of the protrusions such that the first tube passes through the joint portion when the protrusions are matched with the grooves.

REFERENCES:
patent: 4632672 (1986-12-01), Kvitrud
patent: 5195526 (1993-03-01), Michelson
patent: 5388730 (1995-02-01), Abbott et al.
patent: 5785682 (1998-07-01), Grabenkort
patent: 6409971 (2002-06-01), Wilkinson et al.
patent: 6921395 (2005-07-01), Carano et al.
patent: 2003/0085024 (2003-05-01), Santiago et al.

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