Intravenous access devices

Details Intravenous access devices Intravenous access devices

1991-07-05

1992-09-15

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604187, 604239, 128764, 128765, A61M 5315, A61B 500

Patent

active

051473291

ABSTRACT:
A disposable syringe for the dual extraction of a fluid for a plurality of vacuum glass tubes and other types of fluid reservoirs or alternately the delivery of an injectable fluid. A plunger of the syringe also functions as a conduit with one end thereof capable of sealably accepting a blood collection needle of a blood collection receptacle, and as such, allowing a fluid to flow from within the syringe, through said conduit, and into said plurality of vacuum glass tubes, without loss of the piston's ability to generate a positive or negative pressure within said syringe by advancing said plunger in a distal or proximal direction, respectively. Several embodiments of the plunger-conduit system are described.

REFERENCES:
patent: 701671 (1902-06-01), Billings
patent: 1272742 (1918-07-01), Weguelin et al.
patent: 1410530 (1922-03-01), Larche
patent: 2073067 (1937-03-01), Klein et al.
patent: 3064648 (1962-11-01), Bujan
patent: 3931815 (1976-01-01), Takatsuki
patent: 4412832 (1983-11-01), Kling et al.
patent: 4660569 (1987-04-01), Etherington
patent: 4936315 (1990-06-01), Lineback

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