Device for prolonged intravascular infusion

Details Device for prolonged intravascular infusion Device for prolonged intravascular infusion

1976-12-13

1978-08-15

Yasko, John D.

Surgery

Truss

Perineal

128214R, A61B 500

Patent

active

041064917

ABSTRACT:
An improved device for the introduction of fluids into blood vessels, and, particularly, into veins, includes a cannula-containing portion fitted with a valve which is normally closed. A connector portion can be connected to a source of fluid such as IV, special medication or alimentation. The connector portion is so shaped that it can be joined tightly to the cannula-containing portion, simultaneously and automatically opening the valve so that fluid can pass in sequence through the connector portion and through the cannula. A metal cannula can be used where fluid is to be supplied for moderate periods such as a few hours. Where fluid is to be supplied for longer periods, provision is made for introduction into the blood vessel of a cannula of a plastic which is low in thrombogenicity and tendency to cause phlebitis.

REFERENCES:
patent: 3143109 (1964-08-01), Gewertz
patent: 3181529 (1965-05-01), Wilburn
patent: 3416567 (1968-12-01), Von Dardel et al.
patent: 3460529 (1969-08-01), Leucci
patent: 3513829 (1970-05-01), Deuschle et al.
patent: 3585996 (1971-06-01), Reynolds et al.
patent: 3753432 (1973-08-01), Guerra
patent: 3906930 (1975-09-01), Guerra
patent: 3996923 (1976-12-01), Guerra

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