Automatic stopping device for the intravenous drip

Details Automatic stopping device for the intravenous drip Automatic stopping device for the intravenous drip

1987-12-17

1990-09-25

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604411, 604254, A61M 100

Patent

active

049590537

ABSTRACT:
This invention relates to an intravenous drip, which has a dripping vessel, a cap, a valve, a connecting tube and a pointed bar been inserted in the solution bottle letting the solution in said bottle to flow down through a solution passage of said bar into said dripping vessel, and said valve with a hollow cone to float on the solution level in said dripping vessel and to blow the flow of the solution by means of the circumferential surface of said hollow cone able to touch the upper inside rim of the connecting tube inserted in the said linking tube of the dripping vessel as the solution level therein gradually goes down.

REFERENCES:
patent: 3227173 (1966-01-01), Bernstein
patent: 3465784 (1969-09-01), Cofoid
patent: 3822700 (1974-07-01), Pennington
patent: 3982534 (1976-09-01), Buckman
patent: 4055176 (1977-10-01), Lundquist
patent: 4203463 (1980-05-01), Ponlot et al.
patent: 4449976 (1984-05-01), Kamen
patent: 4475914 (1984-10-01), Portnoff
patent: 4640306 (1987-02-01), Fan

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