Intravenous metering device having automatic stopper

Details Intravenous metering device having automatic stopper Intravenous metering device having automatic stopper

1997-11-13

1999-02-09

Coggins, Wynn Wood

Surgery

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

Treating material introduced into or removed from body...

604247, 604245, 604254, A61M 500

Patent

active

058687157

ABSTRACT:
An intravenous metering device having automatic stopper comprises a connecting tube that can be inserted into a liquid bottle at one end such that a fluid communication therebetween can be establish. The transfusion tube being connected to a liquid barrel that has a relative larger diameter and is adjacent to the liquid bottle. The liquid barrel serves a buffering device in which the liquid from the bottle is firstly and temporary stored thereof. The second end of the transfusion tube is connected with a catheter that can be punctured into the vein of patient. A regulating device being enveloped onto the transfusion tube at suitable position. Characterized in that the junction between the lower end of the liquid barrel and the upper end of the transfusion tube is formed with a cone-shape recess in which a valve that can be axially engaged thereof is disposed. The valve is floated over the liquid surface of the liquid barrel. The lower end of the valve is provided with a cone-shape stopper. Wherein when the liquid level within the liquid barrel becomes lower and lower, the stopper of the valve may be completely seated and engaged within the cone-shape recess to block the liquid flow.

REFERENCES:
patent: 3227173 (1966-01-01), Bernstein
patent: 4947154 (1990-08-01), Hwang
patent: 5415325 (1995-05-01), Shu
patent: 5722961 (1998-03-01), Fan

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