Devices for sampling, drainage or infusion of liquids from or to

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

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Details

604167, 604168, A61M 500

Patent

active

047582251

ABSTRACT:
A device for use in the sampling or infusion of liquids from or to the human or animal body, comprising a chamber for receiving fluid, a cannula in communication with the chamber, at least one valve means operable in an open condition to connect the chamber with a source or drain of liquid and in a closed condition to seal the chamber therefrom, and chamber venting means allowing the escape of air from the chamber while preventing the escape of liquid therefrom.

REFERENCES:
patent: 4106491 (1978-08-01), Guerra
patent: 4200096 (1980-04-01), Charvin
patent: 4531937 (1985-07-01), Yates
patent: 4626245 (1986-12-01), Weinstein
patent: 4689047 (1987-08-01), Bauer

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