Valved blood sampling device

Details Valved blood sampling device Valved blood sampling device

1978-11-02

1981-07-28

Howell, Kyle L.

Surgery

Truss

Pad

128764, A61B 514

Patent

active

042805090

ABSTRACT:
A cannula for blood extraction with a controllable flow includes an injection cannula and a discharge cannula interconnected by a flexible tube wherein the tube is capable of being squeezed tight between the cannulae by a mechanism which applies pressure to the exterior of the flexible tube, the pressure applying mechanism and the tube serving as a valve between the cannulae.

REFERENCES:
patent: 2832344 (1958-04-01), Davidson
patent: 3304934 (1967-02-01), Bautista
patent: 3491748 (1970-01-01), Pate
patent: 3616789 (1971-11-01), Grabhorn
patent: 3838843 (1974-10-01), Bernhard
patent: 4106497 (1978-08-01), Percarpio

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