Parenteral liquid application apparatus

Details Parenteral liquid application apparatus Parenteral liquid application apparatus

1981-11-30

1984-01-10

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604257, 604251, A61M 514

Patent

active

044251238

ABSTRACT:
To provide for controlled application of parenteral fluid to a patient, in which the fluid is supplied from a flexible bag which changes its volume as the fluid is withdrawn therefrom, a liquid flow control device (2) has a membrane which, intermittently closes off and opens flow communication from beneath a dripping tube (1a) and a cannula (8) applying the liquid to the patient, the side of the membrane remote from its control side being connected by a capillary tube (15) to the interior of the dripping tube to equalize the pressure changes occurring on both sides of the membrane as the liquid level in the supply vessel decreases. The flow rate is initially adjusted by lowering the level of the liquid stabilization device with respect to the level of the dripping chamber.

REFERENCES:
patent: 3690318 (1972-09-01), Gorsuch
patent: 3931818 (1976-01-01), Goldowsky
patent: 4186740 (1980-02-01), Guerra
patent: 4355639 (1982-10-01), Di Salvo

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