Apparatus for the registration of drops in an infusion device

Details Apparatus for the registration of drops in an infusion device Apparatus for the registration of drops in an infusion device

1984-12-06

1986-11-18

Coven, Edward M.

Surgery

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

Treating material introduced into or removed from body...

604253, A61M 500

Patent

active

046233318

ABSTRACT:
An apparatus for the registration of drops in an infusion device has a drip chamber from which fluid is supplied from a reservoir through a tube to a patient, with a drop sensor disposed in the region of the drip chamber. The drop sensor is divided into at least two levels, each level having a processing channel allocated thereto including an amplifier, a comparator and a memory. The outputs of each channel are supplied to a logic unit. As long as signals are supplied by each channel to the logic unit, normal and proper operation is assumed, however, a discriminator unit triggers a fault display or an alarm when a signal from only one channel is present within a predetermined time.

REFERENCES:
patent: 2880764 (1959-04-01), Pelavis
patent: 3500366 (1970-03-01), Chesney et al.
patent: 3545271 (1970-12-01), Amir et al.
patent: 3700904 (1972-10-01), Stobble et al.
patent: 4328801 (1982-05-01), Marx et al.
patent: 4346606 (1982-08-01), Cannon et al.
patent: 4432761 (1984-02-01), Dawe

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