Intravenous drip rate control device

Details Intravenous drip rate control device Intravenous drip rate control device

1983-11-14

1985-01-15

Coven, Edward M.

Surgery

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

Treating material introduced into or removed from body...

604253, 128DIG13, 251 7, A61M 500

Patent

active

044937105

ABSTRACT:
An intravenous drip rate control device includes a control valve having horizontally oriented valve members each provided with valve elements arranged in interdigitating relation with respect to each other. A drip rate sensor senses each intravenous drip and produces an electrical signal in response to each drip. A microprocessor unit compares the sensed drip rate to a preset drip rate and controls operation of an actuating unit which causes one of the valve members to shift toward and away from the other valve member. When one of the valve members is shifted toward the other valve member, a horizontal portion of the drip tube is progressively stretched to narrow the opening through the stretched portion of the tube and thereby reduce the drip rate. When the valve member is shifted away from the other valve member, the tension on the stretched portion of the tube will be progressively released, thereby increasing the opening in the tube and increasing the drip rate.

REFERENCES:
patent: 4261388 (1981-04-01), Shelton
patent: 4312342 (1982-01-01), Chilkenden
patent: 4382453 (1983-05-01), Bujan et al.
patent: 4425113 (1984-01-01), Bilstad

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