Intravenous catheter

Details Intravenous catheter Intravenous catheter

1998-07-27

1999-08-24

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604195, 604900, A61M 500

Patent

active

059418540

ABSTRACT:
In an intravenous catheter wherein a syringe needle and surrounding sheath are inserted into a vein so that blood flows through the needle into a transparent hollow push-pull element fixed on the needle remote from its point to indicate proper vein insertion, and the needle is then withdrawn from the sheath and from a vial on the end of the sheath so that blood back-flows into the vial before intravenous fluid is introduced through a side port in the vial into the vein, the vial opening being covered with an elastomeric diaphragm through which the needle is initially pierced and which self-seals when the needle is withdrawn therefrom, the improvement of a protective enclosure for the needle wherein a housing attachable to the vial surrounds the push-pull element so that the point of the needle is enclosed within that housing when the needle is withdrawn through the diaphragm.

REFERENCES:
patent: 5000740 (1991-03-01), Ducharme et al.
patent: 5120319 (1992-06-01), Van Heugten et al.
patent: 5496281 (1996-03-01), Krebs
patent: 5575777 (1996-11-01), Cover et al.
patent: 5685855 (1997-11-01), Erskine
patent: 5704914 (1998-01-01), Stocking et al.

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