Apparatus and method for the detection of air in fluid delivery

Details Apparatus and method for the detection of air in fluid delivery Apparatus and method for the detection of air in fluid delivery

1990-02-27

1991-01-01

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604122, 604246, A61M 3100

Patent

active

049814672

ABSTRACT:
An infusion device includes an infusion pump for delivering a liquid through an infusion conduit from a separate source of the liquid into a patient, a bubble detector for detecting the presence of an air bubble in the infusion conduit, and control circuitry responsive to the bubble detector for determining if the size of the air bubble is unacceptable. The control circuitry is configured to determine if during the time the air bubble is detected it advances a distance indicative of the unacceptable size, one embodiment counting the steps of a linear peristaltic infusion pump for that purpose.

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patent: 4720636 (1988-01-01), Benner, Jr.
patent: 4762518 (1988-08-01), Kreinick
patent: 4764166 (1988-08-01), Spani
patent: 4784643 (1988-11-01), Siretchi et al.
patent: 4797655 (1989-01-01), Orndal et al.

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